module iana-ssh-public-key-algs {
  yang-version 1.1;
  namespace "urn:ietf:params:xml:ns:yang:iana-ssh-public-key-algs";
  prefix sshpka;

  organization
    "Internet Assigned Numbers Authority (IANA)";
  contact
    "Postal: ICANN
             12025 Waterfront Drive, Suite 300
             Los Angeles, CA  90094-2536
             United States of America
     Tel:    +1 310 301 5800
     Email:  iana@iana.org";

  description
    "This module defines identities for the public key algorithms
     defined in the 'Public Key Algorithm Names' sub-registry of the
     'Secure Shell (SSH) Protocol Parameters' registry maintained
     by IANA.

     Copyright (c) 2022 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 Revised
     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).

     The initial version of this YANG module is part of RFC EEEE
     (https://www.rfc-editor.org/info/rfcEEEE); see the RFC
     itself for full legal notices.";

  revision 2022-06-16 {
    description
      "Reflects contents of the public key algorithms registry
       on June 16, 2022.";
    reference
      "RFC EEEE: YANG Groupings for SSH Clients and SSH Servers";
  }

  // Typedefs

  typedef public-key-algorithm-ref {
    type identityref {
      base "public-key-alg-base";
    }
    description
      "A reference to a SSH public key algorithm identifier.";
  }

  // Identities
  identity public-key-alg-base {
    description
      "Base identity used to identify public key algorithms.";
  }

  identity ssh-dss {
    base public-key-alg-base;
    description
      "SSH-DSS";
    reference
      "RFC 4253:
         The Secure Shell (SSH) Transport Layer Protocol";
  }

  identity ssh-rsa {
    base public-key-alg-base;
    description
      "SSH-RSA";
    reference
      "RFC 4253:
         The Secure Shell (SSH) Transport Layer Protocol";
  }

  identity rsa-sha2-256 {
    base public-key-alg-base;
    description
      "RSA-SHA2-256";
    reference
      "RFC 8332:
         Use of RSA Keys with SHA-256 and SHA-512
         in the Secure Shell (SSH) Protocol";
  }

  identity rsa-sha2-512 {
    base public-key-alg-base;
    description
      "RSA-SHA2-512";
    reference
      "RFC 8332:
         Use of RSA Keys with SHA-256 and SHA-512
         in the Secure Shell (SSH) Protocol";
  }

  identity spki-sign-rsa {
    base public-key-alg-base;
    description
      "SPKI-SIGN-RSA";
    reference
      "RFC 4253:
         The Secure Shell (SSH) Transport Layer Protocol";
  }

  identity spki-sign-dss {
    base public-key-alg-base;
    description
      "SPKI-SIGN-DSS";
    reference
      "RFC 4253:
         The Secure Shell (SSH) Transport Layer Protocol";
  }

  identity pgp-sign-rsa {
    base public-key-alg-base;
    description
      "PGP-SIGN-RSA";
    reference
      "RFC 4253:
         The Secure Shell (SSH) Transport Layer Protocol";
  }

  identity pgp-sign-dss {
    base public-key-alg-base;
    description
      "PGP-SIGN-DSS";
    reference
      "RFC 4253:
         The Secure Shell (SSH) Transport Layer Protocol";
  }

  identity null {
    base public-key-alg-base;
    description
      "NULL";
    reference
      "RFC 4462:
         Generic Security Service Application Program Interface
         (GSS-API) Authentication and Key Exchange for the
         Secure Shell (SSH) Protocol";
  }

  identity ecdsa-sha2-nistp256 {
    base public-key-alg-base;
    status deprecated;
    description
      "ECDSA-SHA2-NISTP256 (secp256r1)";
    reference
      "RFC 5656:
         Elliptic Curve Algorithm Integration in the
         Secure Shell Transport Layer";
  }

  identity ecdsa-sha2-nistp384 {
    base public-key-alg-base;
    description
      "ECDSA-SHA2-NISTP384 (secp384r1)";
    reference
      "RFC 5656:
         Elliptic Curve Algorithm Integration in the
         Secure Shell Transport Layer";
  }

  identity ecdsa-sha2-nistp521 {
    base public-key-alg-base;
    description
      "ECDSA-SHA2-NISTP521 (secp521r1)";
    reference
      "RFC 5656:
         Elliptic Curve Algorithm Integration in the
         Secure Shell Transport Layer";
  }

  identity ecdsa-sha2-1.3.132.0.1 {
    base public-key-alg-base;
    description
      "ECDSA-SHA2-1.3.132.0.1 (nistk163, sect163k1)";
    reference
      "RFC 5656:
         Elliptic Curve Algorithm Integration in the
         Secure Shell Transport Layer";
  }

  identity ecdsa-sha2-1.2.840.10045.3.1.1 {
    base public-key-alg-base;
    description
      "ECDSA-SHA2-1.2.840.10045.3.1.1 (nistp192, secp192r1)";
    reference
      "RFC 5656:
         Elliptic Curve Algorithm Integration in the
         Secure Shell Transport Layer";
  }

  identity ecdsa-sha2-1.3.132.0.33 {
    base public-key-alg-base;
    description
      "ECDSA-SHA2-1.3.132.0.33 (nistp224, secp224r1)";
    reference
      "RFC 5656:
         Elliptic Curve Algorithm Integration in the
         Secure Shell Transport Layer";
  }

  identity ecdsa-sha2-1.3.132.0.26 {
    base public-key-alg-base;
    description
      "ECDSA-SHA2-1.3.132.0.26 (nistk233, sect233k1)";
    reference
      "RFC 5656:
         Elliptic Curve Algorithm Integration in the
         Secure Shell Transport Layer";
  }

  identity ecdsa-sha2-1.3.132.0.27 {
    base public-key-alg-base;
    description
      "ECDSA-SHA2-1.3.132.0.27 (nistb233, sect233r1)";
    reference
      "RFC 5656:
         Elliptic Curve Algorithm Integration in the
         Secure Shell Transport Layer";
  }

  identity ecdsa-sha2-1.3.132.0.16 {
    base public-key-alg-base;
    description
      "ECDSA-SHA2-1.3.132.0.16 (nistk283, sect283k1)";
    reference
      "RFC 5656:
         Elliptic Curve Algorithm Integration in the
         Secure Shell Transport Layer";
  }

  identity ecdsa-sha2-1.3.132.0.36 {
    base public-key-alg-base;
    description
      "ECDSA-SHA2-1.3.132.0.36 (nistk409, sect409k1)";
    reference
      "RFC 5656:
         Elliptic Curve Algorithm Integration in the
         Secure Shell Transport Layer";
  }

  identity ecdsa-sha2-1.3.132.0.37 {
    base public-key-alg-base;
    description
      "ECDSA-SHA2-1.3.132.0.37 (nistb409, sect409r1)";
    reference
      "RFC 5656:
         Elliptic Curve Algorithm Integration in the
         Secure Shell Transport Layer";
  }

  identity ecdsa-sha2-1.3.132.0.38 {
    base public-key-alg-base;
    description
      "ECDSA-SHA2-1.3.132.0.38 (nistt571, sect571k1)";
    reference
      "RFC 5656:
         Elliptic Curve Algorithm Integration in the
         Secure Shell Transport Layer";
  }

  identity x509v3-ssh-dss {
    base public-key-alg-base;
    description
      "X509V3-SSH-DSS";
    reference
      "RFC 6187:
         X.509v3 Certificates for Secure Shell Authentication";
  }

  identity x509v3-ssh-rsa {
    base public-key-alg-base;
    description
      "X509V3-SSH-RSA";
    reference
      "RFC 6187:
         X.509v3 Certificates for Secure Shell Authentication";
  }

  identity x509v3-rsa2048-sha256 {
    base public-key-alg-base;
    status deprecated;
    description
      "X509V3-RSA2048-SHA256";
    reference
      "RFC 6187:
         X.509v3 Certificates for Secure Shell Authentication";
  }

  identity x509v3-ecdsa-sha2-nistp256 {
    base public-key-alg-base;
    description
      "X509V3-ECDSA-SHA2-NISTP256 (secp256r1)";
    reference
      "RFC 6187:
         X.509v3 Certificates for Secure Shell Authentication";
  }

  identity x509v3-ecdsa-sha2-nistp384 {
    base public-key-alg-base;
    description
      "X509V3-ECDSA-SHA2-NISTP384 (secp384r1)";
    reference
      "RFC 6187:
         X.509v3 Certificates for Secure Shell Authentication";
  }

  identity x509v3-ecdsa-sha2-nistp521 {
    base public-key-alg-base;
    description
      "X509V3-ECDSA-SHA2-NISTP521 (secp521r1)";
    reference
      "RFC 6187:
         X.509v3 Certificates for Secure Shell Authentication";
  }

  identity x509v3-ecdsa-sha2-1.3.132.0.1 {
    base public-key-alg-base;
    description
      "X509V3-ECDSA-SHA2-1.3.132.0.1 (nistk163, sect163k1)";
    reference
      "RFC 6187:
         X.509v3 Certificates for Secure Shell Authentication";
  }

  identity x509v3-ecdsa-sha2-1.2.840.10045.3.1.1 {
    base public-key-alg-base;
    description
      "X509V3-ECDSA-SHA2-1.2.840.10045.3.1.1 (nistp192, secp192r1)";
    reference
      "RFC 6187:
         X.509v3 Certificates for Secure Shell Authentication";
  }

  identity x509v3-ecdsa-sha2-1.3.132.0.33 {
    base public-key-alg-base;
    description
      "X509V3-ECDSA-SHA2-1.3.132.0.33 (nistp224, secp224r1)";
    reference
      "RFC 6187:
         X.509v3 Certificates for Secure Shell Authentication";
  }

  identity x509v3-ecdsa-sha2-1.3.132.0.26 {
    base public-key-alg-base;
    description
      "X509V3-ECDSA-SHA2-1.3.132.0.26 (nistk233, sect233k1)";
    reference
      "RFC 6187:
         X.509v3 Certificates for Secure Shell Authentication";
  }

  identity x509v3-ecdsa-sha2-1.3.132.0.27 {
    base public-key-alg-base;
    description
      "X509V3-ECDSA-SHA2-1.3.132.0.27 (nistb233, sect233r1)";
    reference
      "RFC 6187:
         X.509v3 Certificates for Secure Shell Authentication";
  }

  identity x509v3-ecdsa-sha2-1.3.132.0.16 {
    base public-key-alg-base;
    description
      "X509V3-ECDSA-SHA2-1.3.132.0.16 (nistk283, sect283k1)";
    reference
      "RFC 6187:
         X.509v3 Certificates for Secure Shell Authentication";
  }

  identity x509v3-ecdsa-sha2-1.3.132.0.36 {
    base public-key-alg-base;
    description
      "X509V3-ECDSA-SHA2-1.3.132.0.36 (nistk409, sect409k1)";
    reference
      "RFC 6187:
         X.509v3 Certificates for Secure Shell Authentication";
  }

  identity x509v3-ecdsa-sha2-1.3.132.0.37 {
    base public-key-alg-base;
    description
      "X509V3-ECDSA-SHA2-1.3.132.0.37 (nistb409, sect409r1)";
    reference
      "RFC 6187:
         X.509v3 Certificates for Secure Shell Authentication";
  }

  identity x509v3-ecdsa-sha2-1.3.132.0.38 {
    base public-key-alg-base;
    description
      "X509V3-ECDSA-SHA2-1.3.132.0.38 (nistt571, sect571k1)";
    reference
      "RFC 6187:
         X.509v3 Certificates for Secure Shell Authentication";
  }

  identity ssh-ed25519 {
    base public-key-alg-base;
    description
      "SSH-ED25519";
    reference
      "RFC 8709:
         Ed25519 and Ed448 Public Key Algorithms for the
         Secure Shell (SSH) Protocol";
  }

  identity ssh-ed448 {
    base public-key-alg-base;
    description
      "SSH-ED448";
    reference
      "RFC 8709:
         Ed25519 and Ed448 Public Key Algorithms for the
         Secure Shell (SSH) Protocol";
  }

  // Protocol-accessible Nodes

  container supported-algorithms {
    config false;
    description
      "A container for a list of public key algorithms
       supported by the server.";
    leaf-list supported-algorithm {
      type public-key-algorithm-ref;
      description
        "A public key algorithm supported by the server.";
    }
  }

}