Common YANG Data Types for Cryptography
Watsen Networks
kent+ietf@watsen.net
Huawei
wang.haiguang.shieldlab@huawei.com
Operations
NETCONF Working Group
This document defines YANG identities, typedefs, the groupings
useful for cryptographic applications.
This draft contains many placeholder values that need to be replaced
with finalized values at the time of publication. This note summarizes
all of the substitutions that are needed. No other RFC Editor
instructions are specified elsewhere in this document.
Artwork in this document contains shorthand references to drafts in
progress. Please apply the following replacements:
XXXX --> the assigned RFC value for this draft
Artwork in this document contains placeholder values for the date
of publication of this draft. Please apply the following replacement:
2019-10-18 --> the publication date of this draft
The following Appendix section is to be removed prior to publication:
Appendix B. Change Log
This document defines a YANG 1.1 module
specifying identities, typedefs, and groupings useful for cryptography.
The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL
NOT", "SHOULD", "SHOULD NOT", "RECOMMENDED", "NOT RECOMMENDED",
"MAY", and "OPTIONAL" in this document are to be interpreted as
described in BCP 14
when, and only when, they appear in all capitals, as shown here.
This section provides a tree diagram for
the "ietf-crypto-types" module. Only the groupings as represented,
as tree diagrams have no means to represent identities or typedefs.
This module has normative references to ,
, , ,
, , ,
, , ,
, , ,
, , ,
, , ,
, , and .
This module has an informational reference to ,
, , ,
, , ,
, , ,
.
<CODE BEGINS> file "ietf-crypto-types@2019-10-18.yang"
WG List:
Author: Kent Watsen
Author: Wang Haiguang ";
description
"This module defines common YANG types for cryptographic
applications.
Copyright (c) 2019 IETF Trust and the persons identified
as authors of the code. All rights reserved.
Redistribution and use in source and binary forms, with
or without modification, is permitted pursuant to, and
subject to the license terms contained in, the Simplified
BSD License set forth in Section 4.c of the IETF Trust's
Legal Provisions Relating to IETF Documents
(https://trustee.ietf.org/license-info).
This version of this YANG module is part of RFC XXXX
(https://www.rfc-editor.org/info/rfcXXXX); see the RFC
itself for full legal notices.;
The key words 'MUST', 'MUST NOT', 'REQUIRED', 'SHALL',
'SHALL NOT', 'SHOULD', 'SHOULD NOT', 'RECOMMENDED',
'NOT RECOMMENDED', 'MAY', and 'OPTIONAL' in this document
are to be interpreted as described in BCP 14 (RFC 2119)
(RFC 8174) when, and only when, they appear in all
capitals, as shown here.";
revision 2019-10-18 {
description
"Initial version";
reference
"RFC XXXX: Common YANG Data Types for Cryptography";
}
/**************************************/
/* Identities for Hash Algorithms */
/**************************************/
typedef hash-algorithm-t {
type union {
type uint16;
type enumeration {
enum NONE {
value 0;
description
"Hash algorithm is NULL.";
}
enum sha1 {
value 1;
status obsolete;
description
"The SHA1 algorithm.";
reference
"RFC 3174: US Secure Hash Algorithms 1 (SHA1).";
}
enum sha-224 {
value 2;
description
"The SHA-224 algorithm.";
reference
"RFC 6234: US Secure Hash Algorithms.";
}
enum sha-256 {
value 3;
description
"The SHA-256 algorithm.";
reference
"RFC 6234: US Secure Hash Algorithms.";
}
enum sha-384 {
value 4;
description
"The SHA-384 algorithm.";
reference
"RFC 6234: US Secure Hash Algorithms.";
}
enum sha-512 {
value 5;
description
"The SHA-512 algorithm.";
reference
"RFC 6234: US Secure Hash Algorithms.";
}
enum shake-128 {
value 6;
description
"The SHA3 algorithm with 128-bits output.";
reference
"National Institute of Standards and Technology,
SHA-3 Standard: Permutation-Based Hash and
Extendable-Output Functions, FIPS PUB 202, DOI
10.6028/NIST.FIPS.202, August 2015.";
}
enum shake-224 {
value 7;
description
"The SHA3 algorithm with 224-bits output.";
reference
"National Institute of Standards and Technology,
SHA-3 Standard: Permutation-Based Hash and
Extendable-Output Functions, FIPS PUB 202, DOI
10.6028/NIST.FIPS.202, August 2015.";
}
enum shake-256 {
value 8;
description
"The SHA3 algorithm with 256-bits output.";
reference
"National Institute of Standards and Technology,
SHA-3 Standard: Permutation-Based Hash and
Extendable-Output Functions, FIPS PUB 202, DOI
10.6028/NIST.FIPS.202, August 2015.";
}
enum shake-384 {
value 9;
description
"The SHA3 algorithm with 384-bits output.";
reference
"National Institute of Standards and Technology,
SHA-3 Standard: Permutation-Based Hash and
Extendable-Output Functions, FIPS PUB 202, DOI
10.6028/NIST.FIPS.202, August 2015.";
}
enum shake-512 {
value 10;
description
"The SHA3 algorithm with 384-bits output.";
reference
"National Institute of Standards and Technology,
SHA-3 Standard: Permutation-Based Hash and
Extendable-Output Functions, FIPS PUB 202, DOI
10.6028/NIST.FIPS.202, August 2015.";
}
}
}
default "0";
description
"The uint16 filed shall be set by individual protocol families
according to the hash algorithm value assigned by IANA. The
setting is optional and by default is 0. The enumeration
filed is set to the selected hash algorithm.";
}
/***********************************************/
/* Identities for Asymmetric Key Algorithms */
/***********************************************/
typedef asymmetric-key-algorithm-t {
type union {
type uint16;
type enumeration {
enum NONE {
value 0;
description
"Asymetric key algorithm is NULL.";
}
enum rsa1024 {
value 1;
description
"The RSA algorithm using a 1024-bit key.";
reference
"RFC 8017: PKCS #1: RSA Cryptography
Specifications Version 2.2.";
}
enum rsa2048 {
value 2;
description
"The RSA algorithm using a 2048-bit key.";
reference
"RFC 8017:
PKCS #1: RSA Cryptography Specifications Version 2.2.";
}
enum rsa3072 {
value 3;
description
"The RSA algorithm using a 3072-bit key.";
reference
"RFC 8017:
PKCS #1: RSA Cryptography Specifications Version 2.2.";
}
enum rsa4096 {
value 4;
description
"The RSA algorithm using a 4096-bit key.";
reference
"RFC 8017:
PKCS #1: RSA Cryptography Specifications Version 2.2.";
}
enum rsa7680 {
value 5;
description
"The RSA algorithm using a 7680-bit key.";
reference
"RFC 8017:
PKCS #1: RSA Cryptography Specifications Version 2.2.";
}
enum rsa15360 {
value 6;
description
"The RSA algorithm using a 15360-bit key.";
reference
"RFC 8017:
PKCS #1: RSA Cryptography Specifications Version 2.2.";
}
enum secp192r1 {
value 7;
description
"The asymmetric algorithm using a NIST P192 Curve.";
reference
"RFC 6090:
Fundamental Elliptic Curve Cryptography Algorithms.
RFC 5480:
Elliptic Curve Cryptography Subject Public Key
Information.";
}
enum secp224r1 {
value 8;
description
"The asymmetric algorithm using a NIST P224 Curve.";
reference
"RFC 6090:
Fundamental Elliptic Curve Cryptography Algorithms.
RFC 5480:
Elliptic Curve Cryptography Subject Public Key
Information.";
}
enum secp256r1 {
value 9;
description
"The asymmetric algorithm using a NIST P256 Curve.";
reference
"RFC 6090:
Fundamental Elliptic Curve Cryptography Algorithms.
RFC 5480:
Elliptic Curve Cryptography Subject Public Key
Information.";
}
enum secp384r1 {
value 10;
description
"The asymmetric algorithm using a NIST P384 Curve.";
reference
"RFC 6090:
Fundamental Elliptic Curve Cryptography Algorithms.
RFC 5480:
Elliptic Curve Cryptography Subject Public Key
Information.";
}
enum secp521r1 {
value 11;
description
"The asymmetric algorithm using a NIST P521 Curve.";
reference
"RFC 6090:
Fundamental Elliptic Curve Cryptography Algorithms.
RFC 5480:
Elliptic Curve Cryptography Subject Public Key
Information.";
}
enum x25519 {
value 12;
description
"The asymmetric algorithm using a x.25519 Curve.";
reference
"RFC 7748:
Elliptic Curves for Security.";
}
enum x448 {
value 13;
description
"The asymmetric algorithm using a x.448 Curve.";
reference
"RFC 7748:
Elliptic Curves for Security.";
}
}
}
default "0";
description
"The uint16 filed shall be set by individual protocol
families according to the asymmetric key algorithm value
assigned by IANA. The setting is optional and by default
is 0. The enumeration filed is set to the selected
asymmetric key algorithm.";
}
/*************************************/
/* Identities for MAC Algorithms */
/*************************************/
typedef mac-algorithm-t {
type union {
type uint16;
type enumeration {
enum NONE {
value 0;
description
"mac algorithm is NULL.";
}
enum hmac-sha1 {
value 1;
description
"Generating MAC using SHA1 hash function";
reference
"RFC 3174: US Secure Hash Algorithm 1 (SHA1)";
}
enum hmac-sha1-96 {
value 2;
description
"Generating MAC using SHA1 hash function";
reference
"RFC 2404: The Use of HMAC-SHA-1-96 within ESP and AH";
}
enum hmac-sha2-224 {
value 3;
description
"Generating MAC using SHA2 hash function";
reference
"RFC 6234: US Secure Hash Algorithms
(SHA and SHA-based HMAC and HKDF)";
}
enum hmac-sha2-256 {
value 4;
description
"Generating MAC using SHA2 hash function";
reference
"RFC 6234: US Secure Hash Algorithms
(SHA and SHA-based HMAC and HKDF)";
}
enum hmac-sha2-256-128 {
value 5;
description
"Generating a 256 bits MAC using SHA2 hash function and
truncate it to 128 bits";
reference
"RFC 4868: Using HMAC-SHA-256, HMAC-SHA-384,
and HMAC-SHA-512 with IPsec";
}
enum hmac-sha2-384 {
value 6;
description
"Generating a 384 bits MAC using SHA2 hash function";
reference
"RFC 6234: US Secure Hash Algorithms
(SHA and SHA-based HMAC and HKDF)";
}
enum hmac-sha2-384-192 {
value 7;
description
"Generating a 384 bits MAC using SHA2 hash function and
truncate it to 192 bits";
reference
"RFC 4868: Using HMAC-SHA-256, HMAC-SHA-384,
and HMAC-SHA-512 with IPsec";
}
enum hmac-sha2-512 {
value 8;
description
"Generating a 512 bits MAC using SHA2 hash function";
reference
"RFC 6234: US Secure Hash Algorithms
(SHA and SHA-based HMAC and HKDF)";
}
enum hmac-sha2-512-256 {
value 9;
description
"Generating a 512 bits MAC using SHA2 hash function and
truncate it to 256 bits";
reference
"RFC 4868: Using HMAC-SHA-256, HMAC-SHA-384,
and HMAC-SHA-512 with IPsec";
}
enum aes-128-gmac {
value 10;
description
"Generating 128-bit MAC using the Advanced Encryption
Standard (AES) Galois Message Authentication Code
(GMAC) as a mechanism to provide data origin
authentication.";
reference
"RFC 4543:
The Use of Galois Message Authentication Code (GMAC)
in IPsec ESP and AH";
}
enum aes-192-gmac {
value 11;
description
"Generating 192-bit MAC using the Advanced Encryption
Standard (AES) Galois Message Authentication Code
(GMAC) as a mechanism to provide data origin
authentication.";
reference
"RFC 4543:
The Use of Galois Message Authentication Code (GMAC)
in IPsec ESP and AH";
}
enum aes-256-gmac {
value 12;
description
"Generating 256-bit MAC using the Advanced Encryption
Standard (AES) Galois Message Authentication Code
(GMAC) as a mechanism to provide data origin
authentication.";
reference
"RFC 4543:
The Use of Galois Message Authentication Code (GMAC)
in IPsec ESP and AH";
}
enum aes-cmac-96 {
value 13;
description
"Generating 96-bit MAC using Advanced Encryption
Standard (AES) Cipher-based Message Authentication
Code (CMAC)";
reference
"RFC 4494:
The AES-CMAC Algorithm and its Use with IPsec";
}
enum aes-cmac-128 {
value 14;
description
"Generating 128-bit MAC using Advanced Encryption
Standard (AES) Cipher-based Message Authentication
Code (CMAC)";
reference
"RFC 4494:
The AES-CMAC Algorithm and its Use with IPsec";
}
enum sha1-des3-kd {
value 15;
description
"Generating MAC using triple DES encryption function";
reference
"RFC 3961:
Encryption and Checksum Specifications for Kerberos
5";
}
}
}
default "0";
description
"The uint16 filed shall be set by individual protocol
families according to the mac algorithm value assigned by
IANA. The setting is optional and by default is 0. The
enumeration filed is set to the selected mac algorithm.";
}
/********************************************/
/* Identities for Encryption Algorithms */
/********************************************/
typedef encryption-algorithm-t {
type union {
type uint16;
type enumeration {
enum NONE {
value 0;
description
"Encryption algorithm is NULL.";
}
enum aes-128-cbc {
value 1;
description
"Encrypt message with AES algorithm in CBC mode with
a key length of 128 bits.";
reference
"RFC 3565: Use of the Advanced Encryption Standard (AES)
Encryption Algorithm in Cryptographic Message Syntax
(CMS)";
}
enum aes-192-cbc {
value 2;
description
"Encrypt message with AES algorithm in CBC mode with
a key length of 192 bits";
reference
"RFC 3565: Use of the Advanced Encryption Standard (AES)
Encryption Algorithm in Cryptographic Message Syntax
(CMS)";
}
enum aes-256-cbc {
value 3;
description
"Encrypt message with AES algorithm in CBC mode with
a key length of 256 bits";
reference
"RFC 3565: Use of the Advanced Encryption Standard (AES)
Encryption Algorithm in Cryptographic Message Syntax
(CMS)";
}
enum aes-128-ctr {
value 4;
description
"Encrypt message with AES algorithm in CTR mode with
a key length of 128 bits";
reference
"RFC 3686:
Using Advanced Encryption Standard (AES) Counter
Mode with IPsec Encapsulating Security Payload
(ESP)";
}
enum aes-192-ctr {
value 5;
description
"Encrypt message with AES algorithm in CTR mode with
a key length of 192 bits";
reference
"RFC 3686:
Using Advanced Encryption Standard (AES) Counter
Mode with IPsec Encapsulating Security Payload
(ESP)";
}
enum aes-256-ctr {
value 6;
description
"Encrypt message with AES algorithm in CTR mode with
a key length of 256 bits";
reference
"RFC 3686:
Using Advanced Encryption Standard (AES) Counter
Mode with IPsec Encapsulating Security Payload
(ESP)";
}
enum des3-cbc-sha1-kd {
value 7;
description
"Encrypt message with 3DES algorithm in CBC mode
with sha1 function for key derivation";
reference
"RFC 3961:
Encryption and Checksum Specifications for
Kerberos 5";
}
enum rc4-hmac {
value 8;
description
"Encrypt message with rc4 algorithm";
reference
"RFC 4757:
The RC4-HMAC Kerberos Encryption Types Used by
Microsoft Windows";
}
enum rc4-hmac-exp {
value 9;
description
"Encrypt message with rc4 algorithm that is exportable";
reference
"RFC 4757:
The RC4-HMAC Kerberos Encryption Types Used by
Microsoft Windows";
}
}
}
default "0";
description
"The uint16 filed shall be set by individual protocol
families according to the encryption algorithm value
assigned by IANA. The setting is optional and by default
is 0. The enumeration filed is set to the selected
encryption algorithm.";
}
/****************************************************/
/* Identities for Encryption and MAC Algorithms */
/****************************************************/
typedef encryption-and-mac-algorithm-t {
type union {
type uint16;
type enumeration {
enum NONE {
value 0;
description
"Encryption and MAC algorithm is NULL.";
reference
"None";
}
enum aes-128-ccm {
value 1;
description
"Encrypt message with AES algorithm in CCM
mode with a key length of 128 bits; it can
also be used for generating MAC";
reference
"RFC 4309: Using Advanced Encryption Standard
(AES) CCM Mode with IPsec Encapsulating Security
Payload (ESP)";
}
enum aes-192-ccm {
value 2;
description
"Encrypt message with AES algorithm in CCM
mode with a key length of 192 bits; it can
also be used for generating MAC";
reference
"RFC 4309: Using Advanced Encryption Standard
(AES) CCM Mode with IPsec Encapsulating Security
Payload (ESP)";
}
enum aes-256-ccm {
value 3;
description
"Encrypt message with AES algorithm in CCM
mode with a key length of 256 bits; it can
also be used for generating MAC";
reference
"RFC 4309: Using Advanced Encryption Standard
(AES) CCM Mode with IPsec Encapsulating Security
Payload (ESP)";
}
enum aes-128-gcm {
value 4;
description
"Encrypt message with AES algorithm in GCM
mode with a key length of 128 bits; it can
also be used for generating MAC";
reference
"RFC 4106: The Use of Galois/Counter Mode (GCM)
in IPsec Encapsulating Security Payload (ESP)";
}
enum aes-192-gcm {
value 5;
description
"Encrypt message with AES algorithm in GCM
mode with a key length of 192 bits; it can
also be used for generating MAC";
reference
"RFC 4106: The Use of Galois/Counter Mode (GCM)
in IPsec Encapsulating Security Payload (ESP)";
}
enum aes-256-gcm {
value 6;
description
"Encrypt message with AES algorithm in GCM
mode with a key length of 256 bits; it can
also be used for generating MAC";
reference
"RFC 4106: The Use of Galois/Counter Mode (GCM)
in IPsec Encapsulating Security Payload (ESP)";
}
enum chacha20-poly1305 {
value 7;
description
"Encrypt message with chacha20 algorithm and generate
MAC with POLY1305; it can also be used for generating
MAC";
reference
"RFC 8439: ChaCha20 and Poly1305 for IETF Protocols";
}
}
}
default "0";
description
"The uint16 filed shall be set by individual protocol
families according to the encryption and mac algorithm value
assigned by IANA. The setting is optional and by default is
0. The enumeration filed is set to the selected encryption
and mac algorithm.";
}
/******************************************/
/* Identities for signature algorithm */
/******************************************/
typedef signature-algorithm-t {
type union {
type uint16;
type enumeration {
enum NONE {
value 0;
description
"Signature algorithm is NULL";
}
enum dsa-sha1 {
value 1;
description
"The signature algorithm using DSA algorithm with SHA1
hash algorithm";
reference
"RFC 4253:
The Secure Shell (SSH) Transport Layer Protocol";
}
enum rsassa-pkcs1-sha1 {
value 2;
description
"The signature algorithm using RSASSA-PKCS1-v1_5 with
the SHA1 hash algorithm.";
reference
"RFC 4253:
The Secure Shell (SSH) Transport Layer Protocol";
}
enum rsassa-pkcs1-sha256 {
value 3;
description
"The signature algorithm using RSASSA-PKCS1-v1_5 with
the SHA256 hash algorithm.";
reference
"RFC 8332:
Use of RSA Keys with SHA-256 and SHA-512 in the
Secure Shell (SSH) Protocol
RFC 8446:
The Transport Layer Security (TLS) Protocol
Version 1.3";
}
enum rsassa-pkcs1-sha384 {
value 4;
description
"The signature algorithm using RSASSA-PKCS1-v1_5 with
the SHA384 hash algorithm.";
reference
"RFC 8446:
The Transport Layer Security (TLS) Protocol
Version 1.3";
}
enum rsassa-pkcs1-sha512 {
value 5;
description
"The signature algorithm using RSASSA-PKCS1-v1_5 with
the SHA512 hash algorithm.";
reference
"RFC 8332:
Use of RSA Keys with SHA-256 and SHA-512 in the
Secure Shell (SSH) Protocol
RFC 8446:
The Transport Layer Security (TLS) Protocol
Version 1.3";
}
enum rsassa-pss-rsae-sha256 {
value 6;
description
"The signature algorithm using RSASSA-PSS with mask
generation function 1 and SHA256 hash algorithm. If
the public key is carried in an X.509 certificate,
it MUST use the rsaEncryption OID";
reference
"RFC 8446:
The Transport Layer Security (TLS) Protocol
Version 1.3";
}
enum rsassa-pss-rsae-sha384 {
value 7;
description
"The signature algorithm using RSASSA-PSS with mask
generation function 1 and SHA384 hash algorithm. If
the public key is carried in an X.509 certificate,
it MUST use the rsaEncryption OID";
reference
"RFC 8446:
The Transport Layer Security (TLS) Protocol
Version 1.3";
}
enum rsassa-pss-rsae-sha512 {
value 8;
description
"The signature algorithm using RSASSA-PSS with mask
generation function 1 and SHA512 hash algorithm. If
the public key is carried in an X.509 certificate,
it MUST use the rsaEncryption OID";
reference
"RFC 8446:
The Transport Layer Security (TLS) Protocol
Version 1.3";
}
enum rsassa-pss-pss-sha256 {
value 9;
description
"The signature algorithm using RSASSA-PSS with mask
generation function 1 and SHA256 hash algorithm. If
the public key is carried in an X.509 certificate,
it MUST use the rsaEncryption OID";
reference
"RFC 8446:
The Transport Layer Security (TLS) Protocol
Version 1.3";
}
enum rsassa-pss-pss-sha384 {
value 10;
description
"The signature algorithm using RSASSA-PSS with mask
generation function 1 and SHA384 hash algorithm. If
the public key is carried in an X.509 certificate,
it MUST use the rsaEncryption OID";
reference
"RFC 8446:
The Transport Layer Security (TLS) Protocol
Version 1.3";
}
enum rsassa-pss-pss-sha512 {
value 11;
description
"The signature algorithm using RSASSA-PSS with mask
generation function 1 and SHA512 hash algorithm. If
the public key is carried in an X.509 certificate,
it MUST use the rsaEncryption OID";
reference
"RFC 8446:
The Transport Layer Security (TLS) Protocol
Version 1.3";
}
enum ecdsa-secp256r1-sha256 {
value 12;
description
"The signature algorithm using ECDSA with curve name
secp256r1 and SHA256 hash algorithm.";
reference
"RFC 5656:
Elliptic Curve Algorithm Integration in the Secure
Shell Transport Layer
RFC 8446:
The Transport Layer Security (TLS) Protocol
Version 1.3";
}
enum ecdsa-secp384r1-sha384 {
value 13;
description
"The signature algorithm using ECDSA with curve name
secp384r1 and SHA384 hash algorithm.";
reference
"RFC 5656:
Elliptic Curve Algorithm Integration in the Secure
Shell Transport Layer
RFC 8446:
The Transport Layer Security (TLS) Protocol
Version 1.3";
}
enum ecdsa-secp521r1-sha512 {
value 14;
description
"The signature algorithm using ECDSA with curve name
secp521r1 and SHA512 hash algorithm.";
reference
"RFC 5656:
Elliptic Curve Algorithm Integration in the Secure
Shell Transport Layer
RFC 8446:
The Transport Layer Security (TLS) Protocol
Version 1.3";
}
enum ed25519 {
value 15;
description
"The signature algorithm using EdDSA with curve x25519";
reference
"RFC 8032:
Edwards-Curve Digital Signature Algorithm (EdDSA)";
}
enum ed25519-cts {
value 16;
description
"The signature algorithm using EdDSA with curve x25519
with phflag = 0";
reference
"RFC 8032:
Edwards-Curve Digital Signature Algorithm (EdDSA)";
}
enum ed25519-ph {
value 17;
description
"The signature algorithm using EdDSA with curve x25519
with phflag = 1";
reference
"RFC 8032:
Edwards-Curve Digital Signature Algorithm (EdDSA)";
}
enum ed25519-sha512 {
value 18;
description
"The signature algorithm using EdDSA with curve x25519
and SHA-512 function";
reference
"RFC 8419:
Use of Edwards-Curve Digital Signature Algorithm
(EdDSA) Signatures in the Cryptographic Message
Syntax (CMS)";
}
enum ed448 {
value 19;
description
"The signature algorithm using EdDSA with curve x448";
reference
"RFC 8032:
Edwards-Curve Digital Signature Algorithm (EdDSA)";
}
enum ed448-ph {
value 20;
description
"The signature algorithm using EdDSA with curve x448
and with PH being SHAKE256(x, 64) and phflag being 1";
reference
"RFC 8032:
Edwards-Curve Digital Signature Algorithm (EdDSA)";
}
enum ed448-shake256 {
value 21;
description
"The signature algorithm using EdDSA with curve x448
and SHAKE-256 function";
reference
"RFC 8419:
Use of Edwards-Curve Digital Signature Algorithm
(EdDSA) Signatures in the Cryptographic Message
Syntax (CMS)";
}
enum ed448-shake256-len {
value 22;
description
"The signature algorithm using EdDSA with curve x448
and SHAKE-256 function and a customized hash output";
reference
"RFC 8419:
Use of Edwards-Curve Digital Signature Algorithm
(EdDSA) Signatures in the Cryptographic Message
Syntax (CMS)";
}
enum rsa-sha2-256 {
value 23;
description
"The signature algorithm using RSA with SHA2 function
for SSH protocol";
reference
"RFC 8332:
Use of RSA Keys with SHA-256 and SHA-512
in the Secure Shell (SSH) Protocol";
}
enum rsa-sha2-512 {
value 24;
description
"The signature algorithm using RSA with SHA2 function
for SSH protocol";
reference
"RFC 8332:
Use of RSA Keys with SHA-256 and SHA-512
in the Secure Shell (SSH) Protocol";
}
enum eccsi {
value 25;
description
"The signature algorithm using ECCSI signature as
defined in RFC 6507.";
reference
"RFC 6507:
Elliptic Curve-Based Certificateless Signatures
for Identity-based Encryption (ECCSI)";
}
}
}
default "0";
description
"The uint16 filed shall be set by individual protocol
families according to the signature algorithm value
assigned by IANA. The setting is optional and by default
is 0. The enumeration filed is set to the selected
signature algorithm.";
}
/**********************************************/
/* Identities for key exchange algorithms */
/**********************************************/
typedef key-exchange-algorithm-t {
type union {
type uint16;
type enumeration {
enum NONE {
value 0;
description
"Key exchange algorithm is NULL.";
}
enum psk-only {
value 1;
description
"Using Pre-shared key for authentication and key
exchange";
reference
"RFC 4279:
Pre-Shared Key cipher suites for Transport Layer
Security (TLS)";
}
enum dhe-ffdhe2048 {
value 2;
description
"Ephemeral Diffie Hellman key exchange with 2048 bit
finite field";
reference
"RFC 7919:
Negotiated Finite Field Diffie-Hellman Ephemeral
Parameters for Transport Layer Security (TLS)";
}
enum dhe-ffdhe3072 {
value 3;
description
"Ephemeral Diffie Hellman key exchange with 3072 bit
finite field";
reference
"RFC 7919:
Negotiated Finite Field Diffie-Hellman Ephemeral
Parameters for Transport Layer Security (TLS)";
}
enum dhe-ffdhe4096 {
value 4;
description
"Ephemeral Diffie Hellman key exchange with 4096 bit
finite field";
reference
"RFC 7919:
Negotiated Finite Field Diffie-Hellman Ephemeral
Parameters for Transport Layer Security (TLS)";
}
enum dhe-ffdhe6144 {
value 5;
description
"Ephemeral Diffie Hellman key exchange with 6144 bit
finite field";
reference
"RFC 7919:
Negotiated Finite Field Diffie-Hellman Ephemeral
Parameters for Transport Layer Security (TLS)";
}
enum dhe-ffdhe8192 {
value 6;
description
"Ephemeral Diffie Hellman key exchange with 8192 bit
finite field";
reference
"RFC 7919:
Negotiated Finite Field Diffie-Hellman Ephemeral
Parameters for Transport Layer Security (TLS)";
}
enum psk-dhe-ffdhe2048 {
value 7;
description
"Key exchange using pre-shared key with Diffie-Hellman
key generation mechanism, where the DH group is
FFDHE2048";
reference
"RFC 8446:
The Transport Layer Security (TLS) Protocol
Version 1.3";
}
enum psk-dhe-ffdhe3072 {
value 8;
description
"Key exchange using pre-shared key with Diffie-Hellman
key generation mechanism, where the DH group is
FFDHE3072";
reference
"RFC 8446:
The Transport Layer Security (TLS) Protocol
Version 1.3";
}
enum psk-dhe-ffdhe4096 {
value 9;
description
"Key exchange using pre-shared key with Diffie-Hellman
key generation mechanism, where the DH group is
FFDHE4096";
reference
"RFC 8446:
The Transport Layer Security (TLS) Protocol
Version 1.3";
}
enum psk-dhe-ffdhe6144 {
value 10;
description
"Key exchange using pre-shared key with Diffie-Hellman
key generation mechanism, where the DH group is
FFDHE6144";
reference
"RFC 8446:
The Transport Layer Security (TLS) Protocol
Version 1.3";
}
enum psk-dhe-ffdhe8192 {
value 11;
description
"Key exchange using pre-shared key with Diffie-Hellman
key generation mechanism, where the DH group is
FFDHE8192";
reference
"RFC 8446:
The Transport Layer Security (TLS) Protocol
Version 1.3";
}
enum ecdhe-secp256r1 {
value 12;
description
"Ephemeral Diffie Hellman key exchange with elliptic
group over curve secp256r1";
reference
"RFC 8422:
Elliptic Curve Cryptography (ECC) Cipher Suites
for Transport Layer Security (TLS) Versions 1.2
and Earlier";
}
enum ecdhe-secp384r1 {
value 13;
description
"Ephemeral Diffie Hellman key exchange with elliptic
group over curve secp384r1";
reference
"RFC 8422:
Elliptic Curve Cryptography (ECC) Cipher Suites
for Transport Layer Security (TLS) Versions 1.2
and Earlier";
}
enum ecdhe-secp521r1 {
value 14;
description
"Ephemeral Diffie Hellman key exchange with elliptic
group over curve secp521r1";
reference
"RFC 8422:
Elliptic Curve Cryptography (ECC) Cipher Suites
for Transport Layer Security (TLS) Versions 1.2
and Earlier";
}
enum ecdhe-x25519 {
value 15;
description
"Ephemeral Diffie Hellman key exchange with elliptic
group over curve x25519";
reference
"RFC 8422:
Elliptic Curve Cryptography (ECC) Cipher Suites
for Transport Layer Security (TLS) Versions 1.2
and Earlier";
}
enum ecdhe-x448 {
value 16;
description
"Ephemeral Diffie Hellman key exchange with elliptic
group over curve x448";
reference
"RFC 8422:
Elliptic Curve Cryptography (ECC) Cipher Suites
for Transport Layer Security (TLS) Versions 1.2
and Earlier";
}
enum psk-ecdhe-secp256r1 {
value 17;
description
"Key exchange using pre-shared key with elliptic
group-based Ephemeral Diffie Hellman key exchange
over curve secp256r1";
reference
"RFC 8446:
The Transport Layer Security (TLS) Protocol
Version 1.3";
}
enum psk-ecdhe-secp384r1 {
value 18;
description
"Key exchange using pre-shared key with elliptic
group-based Ephemeral Diffie Hellman key exchange
over curve secp384r1";
reference
"RFC 8446:
The Transport Layer Security (TLS) Protocol
Version 1.3";
}
enum psk-ecdhe-secp521r1 {
value 19;
description
"Key exchange using pre-shared key with elliptic
group-based Ephemeral Diffie Hellman key exchange
over curve secp521r1";
reference
"RFC 8446:
The Transport Layer Security (TLS) Protocol
Version 1.3";
}
enum psk-ecdhe-x25519 {
value 20;
description
"Key exchange using pre-shared key with elliptic
group-based Ephemeral Diffie Hellman key exchange
over curve x25519";
reference
"RFC 8446:
The Transport Layer Security (TLS) Protocol
Version 1.3";
}
enum psk-ecdhe-x448 {
value 21;
description
"Key exchange using pre-shared key with elliptic
group-based Ephemeral Diffie Hellman key exchange
over curve x448";
reference
"RFC 8446:
The Transport Layer Security (TLS) Protocol
Version 1.3";
}
enum diffie-hellman-group14-sha1 {
value 22;
description
"Using DH group14 and SHA1 for key exchange";
reference
"RFC 4253:
The Secure Shell (SSH) Transport Layer Protocol";
}
enum diffie-hellman-group14-sha256 {
value 23;
description
"Using DH group14 and SHA-256 for key exchange";
reference
"RFC 8268:
More Modular Exponentiation (MODP) Diffie-Hellman (DH)
Key Exchange (KEX) Groups for Secure Shell (SSH)";
}
enum diffie-hellman-group15-sha512 {
value 24;
description
"Using DH group15 and SHA-512 for key exchange";
reference
"RFC 8268:
More Modular Exponentiation (MODP) Diffie-Hellman (DH)
Key Exchange (KEX) Groups for Secure Shell (SSH)";
}
enum diffie-hellman-group16-sha512 {
value 25;
description
"Using DH group16 and SHA-512 for key exchange";
reference
"RFC 8268:
More Modular Exponentiation (MODP) Diffie-Hellman (DH)
Key Exchange (KEX) Groups for Secure Shell (SSH)";
}
enum diffie-hellman-group17-sha512 {
value 26;
description
"Using DH group17 and SHA-512 for key exchange";
reference
"RFC 8268:
More Modular Exponentiation (MODP) Diffie-Hellman (DH)
Key Exchange (KEX) Groups for Secure Shell (SSH)";
}
enum diffie-hellman-group18-sha512 {
value 27;
description
"Using DH group18 and SHA-512 for key exchange";
reference
"RFC 8268:
More Modular Exponentiation (MODP) Diffie-Hellman (DH)
Key Exchange (KEX) Groups for Secure Shell (SSH)";
}
enum ecdh-sha2-secp256r1 {
value 28;
description
"Elliptic curve-based Diffie Hellman key exchange over
curve ecp256r1 and using SHA2 for MAC generation";
reference
"RFC 6239:
Suite B Cryptographic Suites for Secure Shell (SSH)";
}
enum ecdh-sha2-secp384r1 {
value 29;
description
"Elliptic curve-based Diffie Hellman key exchange over
curve ecp384r1 and using SHA2 for MAC generation";
reference
"RFC 6239:
Suite B Cryptographic Suites for Secure Shell (SSH)";
}
enum ecdh-x25519-x9.63-sha256 {
value 30;
description
"Elliptic curve-based Diffie Hellman key exchange over
curve x.25519 and using ANSI x9.63 with SHA256 as KDF";
reference
"RFC 8418:
Use of the Elliptic Curve Diffie-Hellman Key Agreement
Algorithm with X25519 and X448 in the Cryptographic
Message Syntax (CMS)";
}
enum ecdh-x25519-x9.63-sha384 {
value 31;
description
"Elliptic curve-based Diffie Hellman key exchange over
curve x.25519 and using ANSI x9.63 with SHA384 as KDF";
reference
"RFC 8418:
Use of the Elliptic Curve Diffie-Hellman Key Agreement
Algorithm with X25519 and X448 in the Cryptographic
Message Syntax (CMS)";
}
enum ecdh-x25519-x9.63-sha512 {
value 32;
description
"Elliptic curve-based Diffie Hellman key exchange over
curve x.25519 and using ANSI x9.63 with SHA512 as KDF";
reference
"RFC 8418:
Use of the Elliptic Curve Diffie-Hellman Key Agreement
Algorithm with X25519 and X448 in the Cryptographic
Message Syntax (CMS)";
}
enum ecdh-x25519-hkdf-sha256 {
value 33;
description
"Elliptic curve-based Diffie Hellman key exchange over
curve x.25519 and using HKDF with SHA256 as KDF";
reference
"RFC 8418:
Use of the Elliptic Curve Diffie-Hellman Key Agreement
Algorithm with X25519 and X448 in the Cryptographic
Message Syntax (CMS)";
}
enum ecdh-x25519-hkdf-sha384 {
value 34;
description
"Elliptic curve-based Diffie Hellman key exchange over
curve x.25519 and using HKDF with SHA384 as KDF";
reference
"RFC 8418:
Use of the Elliptic Curve Diffie-Hellman Key Agreement
Algorithm with X25519 and X448 in the Cryptographic
Message Syntax (CMS)";
}
enum ecdh-x25519-hkdf-sha512 {
value 35;
description
"Elliptic curve-based Diffie Hellman key exchange over
curve x.25519 and using HKDF with SHA512 as KDF";
reference
"RFC 8418:
Use of the Elliptic Curve Diffie-Hellman Key Agreement
Algorithm with X25519 and X448 in the Cryptographic
Message Syntax (CMS)";
}
enum ecdh-x448-x9.63-sha256 {
value 36;
description
"Elliptic curve-based Diffie Hellman key exchange over
curve x.448 and using ANSI x9.63 with SHA256 as KDF";
reference
"RFC 8418:
Use of the Elliptic Curve Diffie-Hellman Key Agreement
Algorithm with X25519 and X448 in the Cryptographic
Message Syntax (CMS)";
}
enum ecdh-x448-x9.63-sha384 {
value 37;
description
"Elliptic curve-based Diffie Hellman key exchange over
curve x.448 and using ANSI x9.63 with SHA384 as KDF";
reference
"RFC 8418:
Use of the Elliptic Curve Diffie-Hellman Key Agreement
Algorithm with X25519 and X448 in the Cryptographic
Message Syntax (CMS)";
}
enum ecdh-x448-x9.63-sha512 {
value 38;
description
"Elliptic curve-based Diffie Hellman key exchange over
curve x.448 and using ANSI x9.63 with SHA512 as KDF";
reference
"RFC 8418:
Use of the Elliptic Curve Diffie-Hellman Key Agreement
Algorithm with X25519 and X448 in the Cryptographic
Message Syntax (CMS)";
}
enum ecdh-x448-hkdf-sha256 {
value 39;
description
"Elliptic curve-based Diffie Hellman key exchange over
curve x.448 and using HKDF with SHA256 as KDF";
reference
"RFC 8418:
Use of the Elliptic Curve Diffie-Hellman Key Agreement
Algorithm with X25519 and X448 in the Cryptographic
Message Syntax (CMS)";
}
enum ecdh-x448-hkdf-sha384 {
value 40;
description
"Elliptic curve-based Diffie Hellman key exchange over
curve x.448 and using HKDF with SHA384 as KDF";
reference
"RFC 8418:
Use of the Elliptic Curve Diffie-Hellman Key Agreement
Algorithm with X25519 and X448 in the Cryptographic
Message Syntax (CMS)";
}
enum ecdh-x448-hkdf-sha512 {
value 41;
description
"Elliptic curve-based Diffie Hellman key exchange over
curve x.448 and using HKDF with SHA512 as KDF";
reference
"RFC 8418:
Use of the Elliptic Curve Diffie-Hellman Key Agreement
Algorithm with X25519 and X448 in the Cryptographic
Message Syntax (CMS)";
}
enum rsaes-oaep {
value 42;
description
"RSAES-OAEP combines the RSAEP and RSADP primitives with
the EME-OAEP encoding method";
reference
"RFC 8017:
PKCS #1:
RSA Cryptography Specifications Version 2.2.";
}
enum rsaes-pkcs1-v1_5 {
value 43;
description
"RSAES-PKCS1-v1_5 combines the RSAEP and RSADP
primitives with the EME-PKCS1-v1_5 encoding method";
reference
"RFC 8017:
PKCS #1:
RSA Cryptography Specifications Version 2.2.";
}
}
}
default "0";
description
"The uint16 filed shall be set by individual protocol
families according to the key exchange algorithm value
assigned by IANA. The setting is optional and by default
is 0. The enumeration filed is set to the selected key
exchange algorithm.";
}
/********************************************/
/* Identities for Key Format Structures */
/********************************************/
/*** all key format types ****/
identity key-format-base {
description "Base key-format identity for all keys.";
}
identity public-key-format {
base "key-format-base";
description "Base key-format identity for public keys.";
}
identity private-key-format {
base "key-format-base";
description "Base key-format identity for private keys.";
}
identity symmetric-key-format {
base "key-format-base";
description "Base key-format identity for symmetric keys.";
}
/**** for private keys ****/
identity rsa-private-key-format {
base "private-key-format";
description "An RSAPrivateKey (from RFC 3447).";
}
identity ec-private-key-format {
base "private-key-format";
description "An ECPrivateKey (from RFC 5915)";
}
identity one-asymmetric-key-format {
base "private-key-format";
description "A OneAsymmetricKey (from RFC 5958).";
}
identity encrypted-private-key-format {
base "private-key-format";
description
"A CMS EncryptedData structure (RFC 5652)
containing a OneAsymmetricKey (RFC 5958).";
}
/**** for public keys ****/
identity ssh-public-key-format {
base "public-key-format";
description
"The public key format described by RFC 4716.";
}
identity subject-public-key-info-format {
base "public-key-format";
description
"A SubjectPublicKeyInfo (from RFC 5280).";
}
/**** for symmetric keys ****/
identity octet-string-key-format {
base "symmetric-key-format";
description "An OctetString from ASN.1.";
/*
// Knowing that it is an "OctetString" isn't really helpful.
// Knowing the length of the octet string would be helpful,
// as it relates to the algorithm's block size. We may want
// to only (for now) use "one-symmetric-key-format" for
// symmetric keys...were the usability issues Juergen
// mentioned before only apply to asymmetric keys?
*/
}
identity one-symmetric-key-format {
base "symmetric-key-format";
description "A OneSymmetricKey (from RFC6031).";
}
identity encrypted-symmetric-key-format {
base "symmetric-key-format";
description
"A CMS EncryptedData structure (RFC 5652)
containing a OneSymmetricKey (RFC 6031).";
}
/***************************************************/
/* Typedefs for ASN.1 structures from RFC 5280 */
/***************************************************/
typedef x509 {
type binary;
description
"A Certificate structure, as specified in RFC 5280,
encoded using ASN.1 distinguished encoding rules (DER),
as specified in ITU-T X.690.";
reference
"RFC 5280:
Internet X.509 Public Key Infrastructure Certificate
and Certificate Revocation List (CRL) Profile
ITU-T X.690:
Information technology - ASN.1 encoding rules:
Specification of Basic Encoding Rules (BER),
Canonical Encoding Rules (CER) and Distinguished
Encoding Rules (DER).";
}
typedef crl {
type binary;
description
"A CertificateList structure, as specified in RFC 5280,
encoded using ASN.1 distinguished encoding rules (DER),
as specified in ITU-T X.690.";
reference
"RFC 5280:
Internet X.509 Public Key Infrastructure Certificate
and Certificate Revocation List (CRL) Profile
ITU-T X.690:
Information technology - ASN.1 encoding rules:
Specification of Basic Encoding Rules (BER),
Canonical Encoding Rules (CER) and Distinguished
Encoding Rules (DER).";
}
/***********************************************/
/* Typedefs for ASN.1 structures from 5652 */
/***********************************************/
typedef cms {
type binary;
description
"A ContentInfo structure, as specified in RFC 5652,
encoded using ASN.1 distinguished encoding rules (DER),
as specified in ITU-T X.690.";
reference
"RFC 5652:
Cryptographic Message Syntax (CMS)
ITU-T X.690:
Information technology - ASN.1 encoding rules:
Specification of Basic Encoding Rules (BER),
Canonical Encoding Rules (CER) and Distinguished
Encoding Rules (DER).";
}
typedef data-content-cms {
type cms;
description
"A CMS structure whose top-most content type MUST be the
data content type, as described by Section 4 in RFC 5652.";
reference
"RFC 5652: Cryptographic Message Syntax (CMS)";
}
typedef signed-data-cms {
type cms;
description
"A CMS structure whose top-most content type MUST be the
signed-data content type, as described by Section 5 in
RFC 5652.";
reference
"RFC 5652: Cryptographic Message Syntax (CMS)";
}
typedef enveloped-data-cms {
type cms;
description
"A CMS structure whose top-most content type MUST be the
enveloped-data content type, as described by Section 6
in RFC 5652.";
reference
"RFC 5652: Cryptographic Message Syntax (CMS)";
}
typedef digested-data-cms {
type cms;
description
"A CMS structure whose top-most content type MUST be the
digested-data content type, as described by Section 7
in RFC 5652.";
reference
"RFC 5652: Cryptographic Message Syntax (CMS)";
}
typedef encrypted-data-cms {
type cms;
description
"A CMS structure whose top-most content type MUST be the
encrypted-data content type, as described by Section 8
in RFC 5652.";
reference
"RFC 5652: Cryptographic Message Syntax (CMS)";
}
typedef authenticated-data-cms {
type cms;
description
"A CMS structure whose top-most content type MUST be the
authenticated-data content type, as described by Section 9
in RFC 5652.";
reference
"RFC 5652: Cryptographic Message Syntax (CMS)";
}
/***************************************************/
/* Typedefs for structures related to RFC 4253 */
/***************************************************/
typedef ssh-host-key {
type binary;
description
"The binary public key data for this SSH key, as
specified by RFC 4253, Section 6.6, i.e.:
string certificate or public key format
identifier
byte[n] key/certificate data.";
reference
"RFC 4253: The Secure Shell (SSH) Transport Layer
Protocol";
}
/*********************************************************/
/* Typedefs for ASN.1 structures related to RFC 5280 */
/*********************************************************/
typedef trust-anchor-cert-x509 {
type x509;
description
"A Certificate structure that MUST encode a self-signed
root certificate.";
}
typedef end-entity-cert-x509 {
type x509;
description
"A Certificate structure that MUST encode a certificate
that is neither self-signed nor having Basic constraint
CA true.";
}
/*********************************************************/
/* Typedefs for ASN.1 structures related to RFC 5652 */
/*********************************************************/
typedef trust-anchor-cert-cms {
type signed-data-cms;
description
"A CMS SignedData structure that MUST contain the chain of
X.509 certificates needed to authenticate the certificate
presented by a client or end-entity.
The CMS MUST contain only a single chain of certificates.
The client or end-entity certificate MUST only authenticate
to last intermediate CA certificate listed in the chain.
In all cases, the chain MUST include a self-signed root
certificate. In the case where the root certificate is
itself the issuer of the client or end-entity certificate,
only one certificate is present.
This CMS structure MAY (as applicable where this type is
used) also contain suitably fresh (as defined by local
policy) revocation objects with which the device can
verify the revocation status of the certificates.
This CMS encodes the degenerate form of the SignedData
structure that is commonly used to disseminate X.509
certificates and revocation objects (RFC 5280).";
reference
"RFC 5280:
Internet X.509 Public Key Infrastructure Certificate
and Certificate Revocation List (CRL) Profile.";
}
typedef end-entity-cert-cms {
type signed-data-cms;
description
"A CMS SignedData structure that MUST contain the end
entity certificate itself, and MAY contain any number
of intermediate certificates leading up to a trust
anchor certificate. The trust anchor certificate
MAY be included as well.
The CMS MUST contain a single end entity certificate.
The CMS MUST NOT contain any spurious certificates.
This CMS structure MAY (as applicable where this type is
used) also contain suitably fresh (as defined by local
policy) revocation objects with which the device can
verify the revocation status of the certificates.
This CMS encodes the degenerate form of the SignedData
structure that is commonly used to disseminate X.509
certificates and revocation objects (RFC 5280).";
reference
"RFC 5280:
Internet X.509 Public Key Infrastructure Certificate
and Certificate Revocation List (CRL) Profile.";
}
typedef ssh-public-key-type { // DELETE?
type binary;
description
"The binary public key data for this SSH key, as
specified by RFC 4253, Section 6.6, i.e.:
string certificate or public key format
identifier
byte[n] key/certificate data.";
reference
"RFC 4253: The Secure Shell (SSH) Transport
Layer Protocol";
}
/**********************************************/
/* Groupings for keys and/or certificates */
/**********************************************/
grouping symmetric-key-grouping {
description
"A symmetric key and algorithm.";
leaf algorithm {
type encryption-algorithm-t;
mandatory true;
description
"The algorithm to be used when generating the key.";
reference
"RFC CCCC: Common YANG Data Types for Cryptography";
}
leaf key-format {
nacm:default-deny-write;
when "../key";
type identityref {
base symmetric-key-format;
}
description "Identifies the symmetric key's format.";
}
choice key-type {
mandatory true;
description
"Choice between key types.";
leaf key {
nacm:default-deny-all;
type binary;
//must "../key-format"; FIXME: remove comment if approach ok
description
"The binary value of the key. The interpretation of
the value is defined by 'key-format'. For example,
FIXME.";
reference
"RFC XXXX: FIXME";
}
leaf hidden-key {
nacm:default-deny-write;
type empty;
description
"A permanently hidden key. How such keys are created
is outside the scope of this module.";
}
}
}
grouping public-key-grouping {
description
"A public key and its associated algorithm.";
leaf algorithm {
nacm:default-deny-write;
type asymmetric-key-algorithm-t;
mandatory true;
description
"Identifies the key's algorithm.";
reference
"RFC CCCC: Common YANG Data Types for Cryptography";
}
leaf public-key-format {
nacm:default-deny-write;
when "../public-key";
type identityref {
base public-key-format;
}
description "Identifies the key's format.";
}
leaf public-key {
nacm:default-deny-write;
type binary;
//must "../public-key-format"; FIXME: rm comment if approach ok
mandatory true;
description
"The binary value of the public key. The interpretation
of the value is defined by 'public-key-format' field.";
}
}
grouping asymmetric-key-pair-grouping {
description
"A private key and its associated public key and algorithm.";
uses public-key-grouping;
leaf private-key-format {
nacm:default-deny-write;
when "../private-key";
type identityref {
base private-key-format;
}
description "Identifies the key's format.";
}
choice private-key-type {
mandatory true;
description
"Choice between key types.";
leaf private-key {
nacm:default-deny-all;
type binary;
//must "../private-key-format"; FIXME: rm comment if ok
description
"The value of the binary key. The key's value is
interpreted by the 'private-key-format' field.";
}
leaf hidden-private-key {
nacm:default-deny-write;
type empty;
description
"A permanently hidden key. How such keys are created
is outside the scope of this module.";
}
}
}
grouping trust-anchor-cert-grouping {
description
"A trust anchor certificate, and a notification for when
it is about to (or already has) expire.";
leaf cert {
nacm:default-deny-write;
type trust-anchor-cert-cms;
description
"The binary certificate data for this certificate.";
reference
"RFC YYYY: Common YANG Data Types for Cryptography";
}
notification certificate-expiration {
description
"A notification indicating that the configured certificate
is either about to expire or has already expired. When to
send notifications is an implementation specific decision,
but it is RECOMMENDED that a notification be sent once a
month for 3 months, then once a week for four weeks, and
then once a day thereafter until the issue is resolved.";
leaf expiration-date {
type yang:date-and-time;
mandatory true;
description
"Identifies the expiration date on the certificate.";
}
}
}
grouping trust-anchor-certs-grouping {
description
"A list of trust anchor certificates, and a notification
for when one is about to (or already has) expire.";
leaf-list cert {
nacm:default-deny-write;
type trust-anchor-cert-cms;
description
"The binary certificate data for this certificate.";
reference
"RFC YYYY: Common YANG Data Types for Cryptography";
}
notification certificate-expiration {
description
"A notification indicating that the configured certificate
is either about to expire or has already expired. When to
send notifications is an implementation specific decision,
but it is RECOMMENDED that a notification be sent once a
month for 3 months, then once a week for four weeks, and
then once a day thereafter until the issue is resolved.";
leaf expiration-date {
type yang:date-and-time;
mandatory true;
description
"Identifies the expiration date on the certificate.";
}
}
}
grouping end-entity-cert-grouping {
description
"An end entity certificate, and a notification for when
it is about to (or already has) expire. Implementations
SHOULD assert that, where used, the end entity certificate
contains the expected public key.";
leaf cert {
nacm:default-deny-write;
type end-entity-cert-cms;
description
"The binary certificate data for this certificate.";
reference
"RFC YYYY: Common YANG Data Types for Cryptography";
}
notification certificate-expiration {
description
"A notification indicating that the configured certificate
is either about to expire or has already expired. When to
send notifications is an implementation specific decision,
but it is RECOMMENDED that a notification be sent once a
month for 3 months, then once a week for four weeks, and
then once a day thereafter until the issue is resolved.";
leaf expiration-date {
type yang:date-and-time;
mandatory true;
description
"Identifies the expiration date on the certificate.";
}
}
}
grouping end-entity-certs-grouping {
description
"A list of end entity certificates, and a notification for
when one is about to (or already has) expire.";
leaf-list cert {
nacm:default-deny-write;
type end-entity-cert-cms;
description
"The binary certificate data for this certificate.";
reference
"RFC YYYY: Common YANG Data Types for Cryptography";
}
notification certificate-expiration {
description
"A notification indicating that the configured certificate
is either about to expire or has already expired. When to
send notifications is an implementation specific decision,
but it is RECOMMENDED that a notification be sent once a
month for 3 months, then once a week for four weeks, and
then once a day thereafter until the issue is resolved.";
leaf expiration-date {
type yang:date-and-time;
mandatory true;
description
"Identifies the expiration date on the certificate.";
}
}
}
grouping asymmetric-key-pair-with-cert-grouping {
description
"A private/public key pair and an associated certificate.
Implementations SHOULD assert that certificates contain
the matching public key.";
uses asymmetric-key-pair-grouping;
uses end-entity-cert-grouping;
action generate-certificate-signing-request {
nacm:default-deny-all;
description
"Generates a certificate signing request structure for
the associated asymmetric key using the passed subject
and attribute values. The specified assertions need
to be appropriate for the certificate's use. For
example, an entity certificate for a TLS server
SHOULD have values that enable clients to satisfy
RFC 6125 processing.";
input {
leaf subject {
type binary;
mandatory true;
description
"The 'subject' field per the CertificationRequestInfo
structure as specified by RFC 2986, Section 4.1
encoded using the ASN.1 distinguished encoding
rules (DER), as specified in ITU-T X.690.";
reference
"RFC 2986:
PKCS #10: Certification Request Syntax
Specification Version 1.7.
ITU-T X.690:
Information technology - ASN.1 encoding rules:
Specification of Basic Encoding Rules (BER),
Canonical Encoding Rules (CER) and Distinguished
Encoding Rules (DER).";
}
leaf attributes {
type binary; // FIXME: does this need to be mandatory?
description
"The 'attributes' field from the structure
CertificationRequestInfo as specified by RFC 2986,
Section 4.1 encoded using the ASN.1 distinguished
encoding rules (DER), as specified in ITU-T X.690.";
reference
"RFC 2986:
PKCS #10: Certification Request Syntax
Specification Version 1.7.
ITU-T X.690:
Information technology - ASN.1 encoding rules:
Specification of Basic Encoding Rules (BER),
Canonical Encoding Rules (CER) and Distinguished
Encoding Rules (DER).";
}
}
output {
leaf certificate-signing-request {
type binary;
mandatory true;
description
"A CertificationRequest structure as specified by
RFC 2986, Section 4.2 encoded using the ASN.1
distinguished encoding rules (DER), as specified
in ITU-T X.690.";
reference
"RFC 2986:
PKCS #10: Certification Request Syntax
Specification Version 1.7.
ITU-T X.690:
Information technology - ASN.1 encoding rules:
Specification of Basic Encoding Rules (BER),
Canonical Encoding Rules (CER) and Distinguished
Encoding Rules (DER).";
}
}
} // generate-certificate-signing-request
} // asymmetric-key-pair-with-cert-grouping
grouping asymmetric-key-pair-with-certs-grouping {
description
"A private/public key pair and associated certificates.
Implementations SHOULD assert that certificates contain
the matching public key.";
uses asymmetric-key-pair-grouping;
container certificates {
nacm:default-deny-write;
description
"Certificates associated with this asymmetric key.
More than one certificate supports, for instance,
a TPM-protected asymmetric key that has both IDevID
and LDevID certificates associated.";
list certificate {
key "name";
description
"A certificate for this asymmetric key.";
leaf name {
type string;
description
"An arbitrary name for the certificate. If the name
matches the name of a certificate that exists
independently in (i.e., an IDevID),
then the 'cert' node MUST NOT be configured.";
}
uses end-entity-cert-grouping;
}
} // certificates
action generate-certificate-signing-request {
nacm:default-deny-all;
description
"Generates a certificate signing request structure for
the associated asymmetric key using the passed subject
and attribute values. The specified assertions need
to be appropriate for the certificate's use. For
example, an entity certificate for a TLS server
SHOULD have values that enable clients to satisfy
RFC 6125 processing.";
input {
leaf subject {
type binary;
mandatory true;
description
"The 'subject' field per the CertificationRequestInfo
structure as specified by RFC 2986, Section 4.1
encoded using the ASN.1 distinguished encoding
rules (DER), as specified in ITU-T X.690.";
reference
"RFC 2986:
PKCS #10: Certification Request Syntax
Specification Version 1.7.
ITU-T X.690:
Information technology - ASN.1 encoding rules:
Specification of Basic Encoding Rules (BER),
Canonical Encoding Rules (CER) and Distinguished
Encoding Rules (DER).";
}
leaf attributes {
type binary; // FIXME: does this need to be mandatory?
description
"The 'attributes' field from the structure
CertificationRequestInfo as specified by RFC 2986,
Section 4.1 encoded using the ASN.1 distinguished
encoding rules (DER), as specified in ITU-T X.690.";
reference
"RFC 2986:
PKCS #10: Certification Request Syntax
Specification Version 1.7.
ITU-T X.690:
Information technology - ASN.1 encoding rules:
Specification of Basic Encoding Rules (BER),
Canonical Encoding Rules (CER) and Distinguished
Encoding Rules (DER).";
}
}
output {
leaf certificate-signing-request {
type binary;
mandatory true;
description
"A CertificationRequest structure as specified by
RFC 2986, Section 4.2 encoded using the ASN.1
distinguished encoding rules (DER), as specified
in ITU-T X.690.";
reference
"RFC 2986:
PKCS #10: Certification Request Syntax
Specification Version 1.7.
ITU-T X.690:
Information technology - ASN.1 encoding rules:
Specification of Basic Encoding Rules (BER),
Canonical Encoding Rules (CER) and Distinguished
Encoding Rules (DER).";
}
}
} // generate-certificate-signing-request
} // asymmetric-key-pair-with-certs-grouping
}
]]>
<CODE ENDS>
In order to use YANG identities for algorithm identifiers, only
the most commonly used RSA key lengths are supported for the RSA
algorithm. Additional key lengths can be defined in another module
or added into a future version of this document.
This document limits the number of elliptical curves supported.
This was done to match industry trends and IETF best practice (e.g.,
matching work being done in TLS 1.3). If additional algorithms are
needed, they can be defined by another module or added into a future
version of this document.
This document uses PKCS #10 for the
"generate-certificate-signing-request" action. The use of Certificate
Request Message Format (CRMF) was considered,
but is was unclear if there was market demand for it. If it is desired
to support CRMF in the future, a backwards compatible solution can be
defined at that time.
The YANG module in this document defines "grouping" statements
that are designed to be accessed via YANG based management
protocols, such as NETCONF and RESTCONF
. Both of these protocols have
mandatory-to-implement secure transport layers (e.g., SSH, TLS)
with mutual authentication.
The NETCONF access control model (NACM)
provides the means to restrict access for particular users to a
pre-configured subset of all available protocol operations and
content.
Since the module in this document only define groupings,
these considerations are primarily for the designers of other
modules that use these groupings.
There are a number of data nodes defined by the grouping
statements that are writable/creatable/deletable (i.e., config
true, which is the default). Some of these data nodes may be
considered sensitive or vulnerable in some network environments.
Write operations (e.g., edit-config) to these data nodes
without proper protection can have a negative effect on
network operations. These are the subtrees and data nodes
and their sensitivity/vulnerability:
All of the data nodes defined by
all the groupings are considered sensitive to write
operations. For instance, the modification of a
public key or a certificate can dramatically alter
the implemented security policy. For this reason,
the NACM extension "default-deny-write" has been
applied to all the data nodes defined by all the
groupings.
Some of the readable data nodes in the YANG module may
be considered sensitive or vulnerable in some network
environments. It is thus important to control read access
(e.g., via get, get-config, or notification) to these
data nodes. These are the subtrees and data nodes and
their sensitivity/vulnerability:
The "private-key" node
defined in the "asymmetric-key-pair-grouping" grouping
is additionally sensitive to read operations such that,
in normal use cases, it should never be returned to a
client. For this reason, the NACM extension
"default-deny-all" has been applied to it here.
Some of the operations in this YANG module may be considered
sensitive or vulnerable in some network environments. It is
thus important to control access to these operations. These
are the operations and their sensitivity/vulnerability:
All of the "action" statements defined by
groupings SHOULD only be executed by authorized users. For
this reason, the NACM extension "default-deny-all" has been
applied to all of them. Note that NACM uses "default-deny-all"
to protect "RPC" and "action" statements; it does not define,
e.g., an extension called "default-deny-execute".
For
this action, it is RECOMMENDED that implementations assert
channel binding , so as to ensure
that the application layer that sent the request is the same
as the device authenticated when the secure transport layer
was established.
This document registers one URI in the "ns" subregistry
of the IETF XML Registry . Following
the format in , the following
registration is requested:
URI: urn:ietf:params:xml:ns:yang:ietf-crypto-types
Registrant Contact: The NETCONF WG of the IETF.
XML: N/A, the requested URI is an XML namespace.
This document registers one YANG module in the
YANG Module Names registry .
Following the format in , the
the following registration is requested:
name: ietf-crypto-types
namespace: urn:ietf:params:xml:ns:yang:ietf-crypto-types
prefix: ct
reference: RFC XXXX
Information Technology - ASN.1 encoding rules: Specification of Basic
Encoding Rules (BER), Canonical Encoding Rules (CER) and Distinguished
Encoding Rules (DER)
International Telecommunication Union
The following example module illustrates the use of both the "symmetric-key-grouping"
and the "asymmetric-key-pair-with-certs-grouping" groupings defined in the
"ietf-crypto-types" module.
";
description
"This module illustrates the grouping
defined in the crypto-types draft called
'asymmetric-key-pair-with-certs-grouping'.";
revision "1001-01-01" {
description
"Initial version";
reference
"RFC ????: Usage Example for RFC XXXX";
}
container symmetric-keys {
description
"A container of symmetric keys.";
list symmetric-key {
key name;
description
"A symmetric key";
leaf name {
type string;
description
"An arbitrary name for this key.";
}
uses ct:symmetric-key-grouping;
}
}
container asymmetric-keys {
description
"A container of asymmetric keys.";
list asymmetric-key {
key name;
leaf name {
type string;
description
"An arbitrary name for this key.";
}
uses ct:asymmetric-key-pair-with-certs-grouping;
description
"An asymmetric key pair with associated certificates.";
}
}
}
]]>
Given the above example usage module, the following example
illustrates some configured keys.
ex-symmetric-key
aes-256-cbc
ct:octet-string-key-format
base64encodedvalue==
ex-hidden-symmetric-key
aes-256-cbc
ex-asymmetric-key
rsa2048
ct:subject-public-key-info-format
base64encodedvalue==
ct:rsa-private-key-format
base64encodedvalue==
ex-cert
base64encodedvalue==
ex-hidden-asymmetric-key
rsa2048
ct:subject-public-key-info-format
base64encodedvalue==
ex-hidden-key-cert
base64encodedvalue==
]]>
The following example illustrates the "generate-certificate-signing-request"
action in use with the NETCONF protocol.
REQUEST
ex-key-sect571r1
base64encodedvalue==
base64encodedvalue==
]]>
RESPONSE
base64encodedvalue==
]]>
The following example illustrates the "certificate-expiration"
notification in use with the NETCONF protocol.
2018-05-25T00:01:00Z
locally-defined key
my-cert
2018-08-05T14:18:53-05:00
]]>
Removed groupings and notifications.
Added typedefs for identityrefs.
Added typedefs for other RFC 5280 structures.
Added typedefs for other RFC 5652 structures.
Added convenience typedefs for RFC 4253, RFC 5280, and RFC 5652.
Moved groupings from the draft-ietf-netconf-keystore here.
Removed unwanted "mandatory" and "must" statements.
Added many new crypto algorithms (thanks Haiguang!)
Clarified in asymmetric-key-pair-with-certs-grouping,
in certificates/certificate/name/description, that
if the name MUST NOT match the name of a certificate
that exists independently in <operational>, enabling
certs installed by the manufacturer (e.g., an IDevID).
renamed base identity 'asymmetric-key-encryption-algorithm' to 'asymmetric-key-algorithm'.
added new 'asymmetric-key-algorithm' identities for secp192r1, secp224r1, secp256r1,
secp384r1, and secp521r1.
removed 'mac-algorithm' identities for mac-aes-128-ccm, mac-aes-192-ccm, mac-aes-256-ccm,
mac-aes-128-gcm, mac-aes-192-gcm, mac-aes-256-gcm, and mac-chacha20-poly1305.
for all -cbc and -ctr identities, renamed base identity 'symmetric-key-encryption-algorithm'
to 'encryption-algorithm'.
for all -ccm and -gcm identities, renamed base identity 'symmetric-key-encryption-algorithm'
to 'encryption-and-mac-algorithm' and renamed the identity to remove the "enc-" prefix.
for all the 'signature-algorithm' based identities, renamed from 'rsa-*' to 'rsassa-*'.
removed all of the "x509v3-" prefixed 'signature-algorithm' based identities.
added 'key-exchange-algorithm' based identities for 'rsaes-oaep' and 'rsaes-pkcs1-v1_5'.
renamed typedef 'symmetric-key-encryption-algorithm-ref' to 'symmetric-key-algorithm-ref'.
renamed typedef 'asymmetric-key-encryption-algorithm-ref' to 'asymmetric-key-algorithm-ref'.
added typedef 'encryption-and-mac-algorithm-ref'.
Updated copyright date, boilerplate template, affiliation, and folding algorithm.
ran YANG module through formatter.
fixed broken symlink causing reformatted YANG module to not show.
Added NACM annotations.
Updated Security Considerations section.
Added 'asymmetric-key-pair-with-cert-grouping' grouping.
Removed text from 'permanently-hidden' enum regarding
such keys not being backed up or restored.
Updated the boilerplate text in module-level "description"
statement to match copyeditor convention.
Added an explanation to the 'public-key-grouping' and
'asymmetric-key-pair-grouping' statements as for why the
nodes are not mandatory (e.g., because they may exist only
in <operational>.
Added 'must' expressions to the 'public-key-grouping' and
'asymmetric-key-pair-grouping' statements ensuring sibling
nodes are either all exist or do not all exist.
Added an explanation to the 'permanently-hidden' that the
value cannot be configured directly by clients and servers
MUST fail any attempt to do so.
Added 'trust-anchor-certs-grouping' and 'end-entity-certs-grouping'
(the plural form of existing groupings).
Now states that keys created in <operational> by the
*-hidden-key actions are bound to the lifetime of the parent
'config true' node, and that subsequent invocations of either
action results in a failure.
Added clarifications that implementations SHOULD assert that
configured certificates contain the matching public key.
Replaced the 'generate-hidden-key' and 'install-hidden-key' actions
with special 'crypt-hash' -like input/output values.
Removed the 'generate-key and 'hidden-key' features.
Added grouping symmetric-key-grouping
Modified 'asymmetric-key-pair-grouping' to have a 'choice'
statement for the keystone module to augment into, as well
as replacing the 'union' with leafs (having different NACM
settings.
Converting algorithm from identities to enumerations.
All of the below changes are to the algorithm enumerations defined in ietf-crypto-types.
Add in support for key exchange over x.25519 and x.448 based on RFC 8418.
Add in SHAKE-128, SHAKE-224, SHAKE-256, SHAKE-384 and SHAKE 512
Revise/add in enum of signature algorithm for x25519 and x448
Add in des3-cbc-sha1 for IPSec
Add in sha1-des3-kd for IPSec
Add in definit for rc4-hmac and rc4-hmac-exp. These two algorithms have been deprecated in RFC 8429. But some existing draft in i2nsf may still want to use them.
Add x25519 and x448 curve for asymmetric algorithms
Add signature algorithms ed25519, ed25519-cts, ed25519ph
add signature algorithms ed448, ed448ph
Add in rsa-sha2-256 and rsa-sha2-512 for SSH protocols (rfc8332)
Added a "key-format" identity.
Added symmetric keys to the example in .
The authors would like to thank for following for
lively discussions on list and in the halls (ordered
by last name):
Martin Bjorklund,
Nick Hancock,
Balázs Kovács,
Juergen Schoenwaelder,
Eric Voit,
and Liang Xia.