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RFC 4491 - Using the GOST R 34.10-94, GOST R 34.10-2001, and GOS


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Network Working Group                                   S. Leontiev, Ed.
Request for Comments: 4491                                    CRYPTO-PRO
Updates: 3279                                        D. Shefanovski, Ed.
Category: Standards Track                        Mobile TeleSystems OJSC
                                                                May 2006

           Using the GOST R 34.10-94, GOST R 34.10-2001, and
                  GOST R 34.11-94 Algorithms with the
               Internet X.509 Public Key Infrastructure
                      Certificate and CRL Profile

Status of This Memo

   This document specifies an Internet standards track protocol for the
   Internet community, and requests discussion and suggestions for
   improvements.  Please refer to the current edition of the "Internet
   Official Protocol Standards" (STD 1) for the standardization state
   and status of this protocol.  Distribution of this memo is unlimited.

Copyright Notice

   Copyright (C) The Internet Society (2006).

Abstract

   This document supplements RFC 3279.  It describes encoding formats,
   identifiers, and parameter formats for the algorithms GOST R 34.10-
   94, GOST R 34.10-2001, and GOST R 34.11-94 for use in Internet X.509
   Public Key Infrastructure (PKI).

Table of Contents

   1. Introduction ....................................................2
      1.1. Requirement Words ..........................................3
   2. Algorithm Support ...............................................3
      2.1. One-Way Hash Function ......................................3
           2.1.1. One-Way Hash Function GOST R 34.11-94 ...............3
      2.2. Signature Algorithms .......................................4
           2.2.1. Signature Algorithm GOST R 34.10-94 .................4
           2.2.2. Signature Algorithm GOST R 34.10-2001 ...............5
      2.3. Subject Public Key Algorithms ..............................5
           2.3.1. GOST R 34.10-94 Keys ................................6
           2.3.2. GOST R 34.10-2001 Keys ..............................8
   3. Security Considerations .........................................9
   4. Examples .......................................................10
      4.1. GOST R 34.10-94 Certificate ...............................10
      4.2. GOST R 34.10-2001 Certificate .............................12
   5. Acknowledgements ...............................................15
   6. References .....................................................16
      6.1. Normative References ......................................16
      6.2. Informative References ....................................17

1.  Introduction

   This document supplements RFC 3279 [PKALGS].  It describes the
   conventions for using the GOST R 34.10-94 [GOST3431095, GOSTR341094]
   and GOST R 34.10-2001 [GOST3431004, GOSTR341001] signature
   algorithms, VKO GOST R 34.10-94 and VKO GOST R 34.10-2001 key
   derivation algorithms, and GOST R 34.11-94 [GOST3431195, GOSTR341194]
   one-way hash function in the Internet X.509 Public Key Infrastructure
   (PKI) [PROFILE].

   This document provides supplemental information and specifications
   needed by the "Russian Cryptographic Software Compatibility
   Agreement" community.

   The algorithm identifiers and associated parameters are specified for
   subject public keys that employ the GOST R 34.10-94 [GOSTR341094]/VKO
   GOST R 34.10-94 [CPALGS] or the GOST R 34.10-2001 [GOSTR341001]/VKO
   GOST R 34.10-2001 [CPALGS] algorithms, as is the encoding format for
   the signatures produced by these algorithms.  Also, the algorithm
   identifiers for using the GOST R 34.11-94 one-way hash function with
   the GOST R 34.10-94 and GOST R 34.10-2001 signature algorithms are
   specified.

   This specification defines the contents of the signatureAlgorithm,
   signatureValue, signature, and subjectPublicKeyInfo fields within
   X.509 Certificates and CRLs.  For each algorithm, the appropriate
   alternatives for the keyUsage certificate extension are provided.

   ASN.1 modules, including all the definitions used in this document,
   can be found in [CPALGS].

1.1.  Requirement Words

   The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
   "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this
   document are to be interpreted as described in [RFC2119].

2.  Algorithm Support

   This section is an overview of cryptographic algorithms that may be
   used within the Internet X.509 certificates and CRL profile
   [PROFILE].  It describes one-way hash functions and digital signature
   algorithms that may be used to sign certificates and CRLs, and it
   identifies object identifiers (OIDs) and ASN.1 encoding for public
   keys contained in a certificate.

   Certification authorities (CAs) and/or applications conforming to
   this standard MUST support at least one of the specified public key
   and signature algorithms.

2.1.  One-Way Hash Function

   This section describes the use of a one-way, collision-free hash
   function GOST R 34.11-94, the only one that can be used in the
   digital signature algorithm GOST R 34.10-94/2001.  The data that is
   hashed for certificates and CRL signing is fully described in RFC
   3280 [PROFILE].

2.1.1.  One-Way Hash Function GOST R 34.11-94

   GOST R 34.11-94 has been developed by "GUBS of Federal Agency
   Government Communication and Information" and "All-Russian Scientific
   and Research Institute of Standardization".  The algorithm GOST R
   34.11-94 produces a 256-bit hash value of an arbitrary finite bit
   length input.  This document does not contain the full GOST R 34.11-
   94 specification, which can be found in [GOSTR341194] (in Russian).
   [Schneier95], ch. 18.11, p. 454, contains a brief technical
   description in English.

   This function MUST always be used with parameter set identified by
   id-GostR3411-94-CryptoProParamSet (see Section 8.2 of [CPALGS]).

2.2.  Signature Algorithms

   Conforming CAs may use GOST R 34.10-94 or GOST R 34.10-2001 signature
   algorithms to sign certificates and CRLs.

   These signature algorithms MUST always be used with a one-way hash
   function GOST R 34.11-94 as indicated in [GOSTR341094] and
   [GOSTR341001].

   This section defines algorithm identifiers and parameters to be used
   in the signatureAlgorithm field in a Certificate or CertificateList.

2.2.1.  Signature Algorithm GOST R 34.10-94

   GOST R 34.10-94 has been developed by "GUBS of Federal Agency
   Government Communication and Information" and "All-Russian Scientific
   and Research Institute of Standardization".  This document does not
   contain the full GOST R 34.10-94 specification, which can be found in
   [GOSTR341094] (in Russian).  [Schneier95], ch. 20.3, p. 495, contains
   a brief technical description in English.

   The ASN.1 object identifier used to identify this signature algorithm
   is:

   id-GostR3411-94-with-GostR3410-94 OBJECT IDENTIFIER ::=
         { iso(1) member-body(2) ru(643) rans(2) cryptopro(2)
           gostR3411-94-with-gostR3410-94(4) }

   When the id-GostR3411-94-with-GostR3410-94 algorithm identifier
   appears as the algorithm field in an AlgorithmIdentifier, the
   encoding SHALL omit the parameters field.  That is, the
   AlgorithmIdentifier SHALL be a SEQUENCE of one component: the OBJECT
   IDENTIFIER id-GostR3411-94-with-GostR3410-94.

   The signature algorithm GOST R 34.10-94 generates a digital signature
   in the form of two 256-bit numbers, r' and s.  Its octet string
   representation consists of 64 octets, where the first 32 octets
   contain the big-endian representation of s and the second 32 octets
   contain the big-endian representation of r'.

   This definition of a signature value is directly usable in CMS [CMS],
   where such values are represented as octet strings.  However,
   signature values in certificates and CRLs [PROFILE] are represented
   as bit strings, and thus the octet string representation must be
   converted.

   To convert an octet string signature value to a bit string, the most
   significant bit of the first octet of the signature value SHALL
   become the first bit of the bit string, and so on through the least
   significant bit of the last octet of the signature value, which SHALL
   become the last bit of the bit string.

2.2.2.  Signature Algorithm GOST R 34.10-2001

   GOST R 34.10-2001 was developed by "GUBS of Federal Agency Government
   Communication and Information" and "All-Russian Scientific and
   Research Institute of Standardization".  This document does not
   contain the full GOST R 34.10-2001 specification, which can be found
   in [GOSTR341001] (in Russian).

   The ASN.1 object identifier used to identify this signature algorithm
   is:

   id-GostR3411-94-with-GostR3410-2001 OBJECT IDENTIFIER ::=
         { iso(1) member-body(2) ru(643) rans(2) cryptopro(2)
           gostR3411-94-with-gostR3410-2001(3) }

   When the id-GostR3411-94-with-GostR3410-2001 algorithm identifier
   appears as the algorithm field in an AlgorithmIdentifier, the
   encoding SHALL omit the parameters field.  That is, the
   AlgorithmIdentifier SHALL be a SEQUENCE of one component: the OBJECT
   IDENTIFIER id-GostR3411-94-with-GostR3410-2001.

   The signature algorithm GOST R 34.10-2001 generates a digital
   signature in the form of two 256-bit numbers, r and s.  Its octet
   string representation consists of 64 octets, where the first 32
   octets contain the big-endian representation of s and the second 32
   octets contain the big-endian representation of r.

   The process described above (Section 2.2.1) MUST be used to convert
   this octet string representation to a bit string for use in
   certificates and CRLs.

2.3.  Subject Public Key Algorithms

   This section defines OIDs and public key parameters for public keys
   that employ the GOST R 34.10-94 [GOSTR341094]/VKO GOST R 34.10-94
   [CPALGS] or the GOST R 34.10-2001 [GOSTR341001]/VKO GOST R 34.10-2001
   [CPALGS] algorithms.

   Use of the same key for both signature and key derivation is NOT
   RECOMMENDED.  The intended application for the key MAY be indicated
   in the keyUsage certificate extension (see [PROFILE], Section
   4.2.1.3).

2.3.1.  GOST R 34.10-94 Keys

   GOST R 34.10-94 public keys can be used for the signature algorithm
   GOST R 34.10-94 [GOSTR341094] and for the key derivation algorithm
   VKO GOST R 34.10-94 [CPALGS].

   GOST R 34.10-94 public keys are identified by the following OID:

   id-GostR3410-94 OBJECT IDENTIFIER ::=
       { iso(1) member-body(2) ru(643) rans(2) cryptopro(2)
           gostR3410-94(20) }

   The SubjectPublicKeyInfo.algorithm.algorithm field (see RFC 3280
   [PROFILE]) for GOST R 34.10-94 keys MUST be set to id-GostR3410-94.

   When the id-GostR3410-94 algorithm identifier appears as the
   algorithm field in an AlgorithmIdentifier, the encoding MAY omit the
   parameters field or set it to NULL.  Otherwise, this field MUST have
   the following structure:

    GostR3410-94-PublicKeyParameters ::=
        SEQUENCE {
            publicKeyParamSet
                OBJECT IDENTIFIER,
            digestParamSet
                OBJECT IDENTIFIER,
            encryptionParamSet
                OBJECT IDENTIFIER DEFAULT
                    id-Gost28147-89-CryptoPro-A-ParamSet
        }

   where:

   * publicKeyParamSet - public key parameters identifier for GOST R
     34.10-94 (see Section 8.3 of [CPALGS])
   * digestParamSet - parameters identifier for GOST R 34.11-94 (see
     Section 8.2 of [CPALGS])
   * encryptionParamSet - parameters identifier for GOST 28147-89
     [GOST28147] (see Section 8.1 of [CPALGS])

   The absence of parameters SHALL be processed as described in RFC 3280
   [PROFILE], Section 6.1; that is, parameters are inherited from the
   issuer certificate.  When the working_public_key_parameters variable
   is set to null, the certificate and any signature verifiable on this
   certificate SHALL be rejected.

   The GOST R 34.10-94 public key MUST be ASN.1 DER encoded as an OCTET
   STRING; this encoding shall be used as the contents (i.e., the value)
   of the subjectPublicKey component (a BIT STRING) of the
   SubjectPublicKeyInfo data element.

   GostR3410-94-PublicKey ::= OCTET STRING -- public key, Y

   GostR3410-94-PublicKey MUST contain 128 octets of the little-endian
   representation of the public key Y = a^x (mod p), where a and p are
   public key parameters, and x is a private key.

   Some erroneous applications discard zero bits at the end of BIT
   STRING containing the public key.  It is RECOMMENDED to pad the bit
   string with zeroes up to 1048 bits (131 octets) on decoding to be
   able to decode the encapsulated OCTET STRING.

   If the keyUsage extension is present in an end-entity certificate
   that contains a GOST R 34.10-94 public key, the following values MAY
   be present:

      digitalSignature;
      nonRepudiation;
      keyEncipherment; and
      keyAgreement.

   If the keyAgreement or keyEnchiperment extension is present in a
   certificate GOST R 34.10-94 public key, the following values MAY be
   present as well:

      encipherOnly; and
      decipherOnly.

   The keyUsage extension MUST NOT assert both encipherOnly and
   decipherOnly.

   If the keyUsage extension is present in an CA or CRL signer
   certificate that contains a GOST R 34.10-94 public key, the following
   values MAY be present:

      digitalSignature;
      nonRepudiation;
      keyCertSign; and
      cRLSign.

2.3.2.  GOST R 34.10-2001 Keys

   GOST R 34.10-2001 public keys can be used for the signature algorithm
   GOST R 34.10-2001 [GOSTR341001] and for the key derivation algorithm
   VKO GOST R 34.10-2001 [CPALGS].

   GOST R 34.10-2001 public keys are identified by the following OID:

   id-GostR3410-2001 OBJECT IDENTIFIER ::=
       { iso(1) member-body(2) ru(643) rans(2) cryptopro(2)
           gostR3410-2001(19) }

   The SubjectPublicKeyInfo.algorithm.algorithm field (see RFC 3280
   [PROFILE]) for GOST R 34.10-2001 keys MUST be set to id-GostR3410-
   2001.

   When the id-GostR3410-2001 algorithm identifier appears as the
   algorithm field in an AlgorithmIdentifier, the encoding MAY omit the
   parameters field or set it to NULL.  Otherwise, this field MUST have
   the following structure:

    GostR3410-2001-PublicKeyParameters ::=
        SEQUENCE {
            publicKeyParamSet
                OBJECT IDENTIFIER,
            digestParamSet
                OBJECT IDENTIFIER,
            encryptionParamSet
                OBJECT IDENTIFIER DEFAULT
                    id-Gost28147-89-CryptoPro-A-ParamSet
        }

   where:

   * publicKeyParamSet - public key parameters identifier for GOST R
     34.10-2001 (see Section 8.4 of [CPALGS])
   * digestParamSet - parameters identifier for GOST R 34.11-94 (see
     Section 8.2 of [CPALGS])
   * encryptionParamSet - parameters identifier for GOST 28147-89
     [GOST28147] (see Section 8.1 of [CPALGS])

   The absence of parameters SHALL be processed as described in RFC 3280
   [PROFILE], Section 6.1; that is, parameters are inherited from the
   issuer certificate.  When the working_public_key_parameters variable
   is set to null, the certificate and any signature verifiable on this
   certificate SHALL be rejected.

   The GOST R 34.10-2001 public key MUST be ASN.1 DER encoded as an
   OCTET STRING; this encoding shall be used as the contents (i.e., the
   value) of the subjectPublicKey component (a BIT STRING) of the
   SubjectPublicKeyInfo data element.

   GostR3410-2001-PublicKey ::= OCTET STRING -- public key vector, Q

   According to [GOSTR341001], a public key is a point on the elliptic
   curve Q = (x,y).

   GostR3410-2001-PublicKey MUST contain 64 octets, where the first 32
   octets contain the little-endian representation of x and the second
   32 octets contain the little-endian representation of y.  This
   corresponds to the binary representation of (<y>256||<x>256) from
   [GOSTR341001], ch.  5.3.

   Some erroneous applications discard zero bits at the end of BIT
   STRING containing the public key.  It is RECOMMENDED to pad the bit
   string with zeroes up to 528 bits (66 octets) on decoding to be able
   to decode the encapsulated OCTET STRING.

   The same keyUsage constraints apply for use of GOST R 34.10-2001 keys
   as described in Section 2.3.1 for GOST R 34.10-94 keys.

3.  Security Considerations

   It is RECOMMENDED that applications verify signature values and
   subject public keys to conform to [GOSTR341001, GOSTR341094]
   standards prior to their use.

   When a certificate is used to support digital signatures as an
   analogue to manual ("wet") signatures, in the context of Russian
   Federal Electronic Digital Signature Law [RFEDSL], the certificate
   MUST contain keyUsage extension, it MUST be critical, and keyUsage
   MUST NOT include keyEncipherment and keyAgreement.

   It is RECOMMENDED that CAs and applications make sure that the
   private key for creating signatures is not used for more than its
   allowed validity period (typically 15 months for both the GOST R
   34.10-94 and GOST R 34.10-2001 algorithms).

   For security discussion concerning use of algorithm parameters, see
   the Security Considerations section in [CPALGS].

4.  Examples

4.1.  GOST R 34.10-94 Certificate

 -----BEGIN CERTIFICATE-----
 MIICCzCCAboCECMO42BGlSTOxwvklBgufuswCAYGKoUDAgIEMGkxHTAbBgNVBAMM
 FEdvc3RSMzQxMC05NCBleGFtcGxlMRIwEAYDVQQKDAlDcnlwdG9Qcm8xCzAJBgNV
 BAYTAlJVMScwJQYJKoZIhvcNAQkBFhhHb3N0UjM0MTAtOTRAZXhhbXBsZS5jb20w
 HhcNMDUwODE2MTIzMjUwWhcNMTUwODE2MTIzMjUwWjBpMR0wGwYDVQQDDBRHb3N0
 UjM0MTAtOTQgZXhhbXBsZTESMBAGA1UECgwJQ3J5cHRvUHJvMQswCQYDVQQGEwJS
 VTEnMCUGCSqGSIb3DQEJARYYR29zdFIzNDEwLTk0QGV4YW1wbGUuY29tMIGlMBwG
 BiqFAwICFDASBgcqhQMCAiACBgcqhQMCAh4BA4GEAASBgLuEZuF5nls02CyAfxOo
 GWZxV/6MVCUhR28wCyd3RpjG+0dVvrey85NsObVCNyaE4g0QiiQOHwxCTSs7ESuo
 v2Y5MlyUi8Go/htjEvYJJYfMdRv05YmKCYJo01x3pg+2kBATjeM+fJyR1qwNCCw+
 eMG1wra3Gqgqi0WBkzIydvp7MAgGBiqFAwICBANBABHHCH4S3ALxAiMpR3aPRyqB
 g1DjB8zy5DEjiULIc+HeIveF81W9lOxGkZxnrFjXBSqnjLeFKgF1hffXOAP7zUM=
 -----END CERTIFICATE-----

   0 30  523: SEQUENCE {
   4 30  442:  SEQUENCE {
   8 02   16:   INTEGER
            :    23 0E E3 60 46 95 24 CE C7 0B E4 94 18 2E 7E EB
  26 30    8:   SEQUENCE {
  28 06    6:    OBJECT IDENTIFIER
            :     id-GostR3411-94-with-GostR3410-94 (1 2 643 2 2 4)
            :    }
  36 30  105:   SEQUENCE {
  38 31   29:    SET {
  40 30   27:     SEQUENCE {
  42 06    3:      OBJECT IDENTIFIER commonName (2 5 4 3)
  47 0C   20:      UTF8String 'GostR3410-94 example'
            :      }
            :     }
  69 31   18:    SET {
  71 30   16:     SEQUENCE {
  73 06    3:      OBJECT IDENTIFIER organizationName (2 5 4 10)
  78 0C    9:      UTF8String 'CryptoPro'
            :      }
            :     }
  89 31   11:    SET {
  91 30    9:     SEQUENCE {
  93 06    3:      OBJECT IDENTIFIER countryName (2 5 4 6)
  98 13    2:      PrintableString 'RU'
            :      }
            :     }
 102 31   39:    SET {
 104 30   37:     SEQUENCE {
 106 06    9:      OBJECT IDENTIFIER emailAddress (1 2 840 113549 1 9 1)

 117 16   24:      IA5String 'GostR3410-94@example.com'
            :      }
            :     }
            :    }
 143 30   30:   SEQUENCE {
 145 17   13:    UTCTime '050816123250Z'
 160 17   13:    UTCTime '150816123250Z'
            :    }
 175 30  105:   SEQUENCE {
 177 31   29:    SET {
 179 30   27:     SEQUENCE {
 181 06    3:      OBJECT IDENTIFIER commonName (2 5 4 3)
 186 0C   20:      UTF8String 'GostR3410-94 example'
            :      }
            :     }
 208 31   18:    SET {
 210 30   16:     SEQUENCE {
 212 06    3:      OBJECT IDENTIFIER organizationName (2 5 4 10)
 217 0C    9:      UTF8String 'CryptoPro'
            :      }
            :     }
 228 31   11:    SET {
 230 30    9:     SEQUENCE {
 232 06    3:      OBJECT IDENTIFIER countryName (2 5 4 6)
 237 13    2:      PrintableString 'RU'
            :      }
            :     }
 241 31   39:    SET {
 243 30   37:     SEQUENCE {
 245 06    9:      OBJECT IDENTIFIER emailAddress (1 2 840 113549 1 9 1)
 256 16   24:      IA5String 'GostR3410-94@example.com'
            :      }
            :     }
            :    }
 282 30  165:   SEQUENCE {
 285 30   28:    SEQUENCE {
 287 06    6:     OBJECT IDENTIFIER id-GostR3410-94 (1 2 643 2 2 20)
 295 30   18:     SEQUENCE {
 297 06    7:      OBJECT IDENTIFIER
            :       id-GostR3410-94-CryptoPro-A-ParamSet
            :        (1 2 643 2 2 32 2)
 306 06    7:      OBJECT IDENTIFIER
            :       id-GostR3411-94-CryptoProParamSet
            :        (1 2 643 2 2 30 1)
            :      }
            :     }
 315 03  132:    BIT STRING 0 unused bits, encapsulates {
 319 04  128:     OCTET STRING

            :      BB 84 66 E1 79 9E 5B 34 D8 2C 80 7F 13 A8 19 66
            :      71 57 FE 8C 54 25 21 47 6F 30 0B 27 77 46 98 C6
            :      FB 47 55 BE B7 B2 F3 93 6C 39 B5 42 37 26 84 E2
            :      0D 10 8A 24 0E 1F 0C 42 4D 2B 3B 11 2B A8 BF 66
            :      39 32 5C 94 8B C1 A8 FE 1B 63 12 F6 09 25 87 CC
            :      75 1B F4 E5 89 8A 09 82 68 D3 5C 77 A6 0F B6 90
            :      10 13 8D E3 3E 7C 9C 91 D6 AC 0D 08 2C 3E 78 C1
            :      B5 C2 B6 B7 1A A8 2A 8B 45 81 93 32 32 76 FA 7B
            :     }
            :    }
            :   }
 450 30    8:  SEQUENCE {
 452 06    6:   OBJECT IDENTIFIER
            :    id-GostR3411-94-with-GostR3410-94 (1 2 643 2 2 4)
            :   }
 460 03   65:  BIT STRING 0 unused bits
            :   11 C7 08 7E 12 DC 02 F1 02 23 29 47 76 8F 47 2A
            :   81 83 50 E3 07 CC F2 E4 31 23 89 42 C8 73 E1 DE
            :   22 F7 85 F3 55 BD 94 EC 46 91 9C 67 AC 58 D7 05
            :   2A A7 8C B7 85 2A 01 75 85 F7 D7 38 03 FB CD 43
            :  }

 In the signature of the above certificate, r' equals
 0x22F785F355BD94EC46919C67AC58D7052AA78CB7852A017585F7D73803FBCD43
 and s equals
 0x11C7087E12DC02F102232947768F472A818350E307CCF2E431238942C873E1DE

4.2.  GOST R 34.10-2001 Certificate

 -----BEGIN CERTIFICATE-----
 MIIB0DCCAX8CECv1xh7CEb0Xx9zUYma0LiEwCAYGKoUDAgIDMG0xHzAdBgNVBAMM
 Fkdvc3RSMzQxMC0yMDAxIGV4YW1wbGUxEjAQBgNVBAoMCUNyeXB0b1BybzELMAkG
 A1UEBhMCUlUxKTAnBgkqhkiG9w0BCQEWGkdvc3RSMzQxMC0yMDAxQGV4YW1wbGUu
 Y29tMB4XDTA1MDgxNjE0MTgyMFoXDTE1MDgxNjE0MTgyMFowbTEfMB0GA1UEAwwW
 R29zdFIzNDEwLTIwMDEgZXhhbXBsZTESMBAGA1UECgwJQ3J5cHRvUHJvMQswCQYD
 VQQGEwJSVTEpMCcGCSqGSIb3DQEJARYaR29zdFIzNDEwLTIwMDFAZXhhbXBsZS5j
 b20wYzAcBgYqhQMCAhMwEgYHKoUDAgIkAAYHKoUDAgIeAQNDAARAhJVodWACGkB1
 CM0TjDGJLP3lBQN6Q1z0bSsP508yfleP68wWuZWIA9CafIWuD+SN6qa7flbHy7Df
 D2a8yuoaYDAIBgYqhQMCAgMDQQA8L8kJRLcnqeyn1en7U23Sw6pkfEQu3u0xFkVP
 vFQ/3cHeF26NG+xxtZPz3TaTVXdoiYkXYiD02rEx1bUcM97i
 -----END CERTIFICATE-----

   0 30  464: SEQUENCE {
   4 30  383:  SEQUENCE {
   8 02   16:   INTEGER
            :    2B F5 C6 1E C2 11 BD 17 C7 DC D4 62 66 B4 2E 21
  26 30    8:   SEQUENCE {
  28 06    6:    OBJECT IDENTIFIER

            :     id-GostR3411-94-with-GostR3410-2001 (1 2 643 2 2 3)
            :    }
  36 30  109:   SEQUENCE {
  38 31   31:    SET {
  40 30   29:     SEQUENCE {
  42 06    3:      OBJECT IDENTIFIER commonName (2 5 4 3)
  47 0C   22:      UTF8String 'GostR3410-2001 example'
            :      }
            :     }
  71 31   18:    SET {
  73 30   16:     SEQUENCE {
  75 06    3:      OBJECT IDENTIFIER organizationName (2 5 4 10)
  80 0C    9:      UTF8String 'CryptoPro'
            :      }
            :     }
  91 31   11:    SET {
  93 30    9:     SEQUENCE {
  95 06    3:      OBJECT IDENTIFIER countryName (2 5 4 6)
 100 13    2:      PrintableString 'RU'
            :      }
            :     }
 104 31   41:    SET {
 106 30   39:     SEQUENCE {
 108 06    9:      OBJECT IDENTIFIER emailAddress (1 2 840 113549 1 9 1)
 119 16   26:      IA5String 'GostR3410-2001@example.com'
            :      }
            :     }
            :    }
 147 30   30:   SEQUENCE {
 149 17   13:    UTCTime '050816141820Z'
 164 17   13:    UTCTime '150816141820Z'
            :    }
 179 30  109:   SEQUENCE {
 181 31   31:    SET {
 183 30   29:     SEQUENCE {
 185 06    3:      OBJECT IDENTIFIER commonName (2 5 4 3)
 190 0C   22:      UTF8String 'GostR3410-2001 example'
            :      }
            :     }
 214 31   18:    SET {
 216 30   16:     SEQUENCE {
 218 06    3:      OBJECT IDENTIFIER organizationName (2 5 4 10)
 223 0C    9:      UTF8String 'CryptoPro'
            :      }
            :     }
 234 31   11:    SET {
 236 30    9:     SEQUENCE {
 238 06    3:      OBJECT IDENTIFIER countryName (2 5 4 6)

 243 13    2:      PrintableString 'RU'
            :      }
            :     }
 247 31   41:    SET {
 249 30   39:     SEQUENCE {
 251 06    9:      OBJECT IDENTIFIER emailAddress (1 2 840 113549 1 9 1)
 262 16   26:      IA5String 'GostR3410-2001@example.com'
            :      }
            :     }
            :    }
 290 30   99:   SEQUENCE {
 292 30   28:    SEQUENCE {
 294 06    6:     OBJECT IDENTIFIER id-GostR3410-2001 (1 2 643 2 2 19)
 302 30   18:     SEQUENCE {
 304 06    7:      OBJECT IDENTIFIER
            :       id-GostR3410-2001-CryptoPro-XchA-ParamSet
            :        (1 2 643 2 2 36 0)
 313 06    7:      OBJECT IDENTIFIER
            :       id-GostR3411-94-CryptoProParamSet
            :        (1 2 643 2 2 30 1)
            :      }
            :     }
 322 03   67:    BIT STRING 0 unused bits, encapsulates {
 325 04   64:     OCTET STRING
            :      84 95 68 75 60 02 1A 40 75 08 CD 13 8C 31 89 2C
            :      FD E5 05 03 7A 43 5C F4 6D 2B 0F E7 4F 32 7E 57
            :      8F EB CC 16 B9 95 88 03 D0 9A 7C 85 AE 0F E4 8D
            :      EA A6 BB 7E 56 C7 CB B0 DF 0F 66 BC CA EA 1A 60
            :     }
            :    }
            :   }
 391 30    8:  SEQUENCE {
 393 06    6:   OBJECT IDENTIFIER
            :    id-GostR3411-94-with-GostR3410-2001 (1 2 643 2 2 3)
            :   }
 401 03   65:  BIT STRING 0 unused bits
            :   3C 2F C9 09 44 B7 27 A9 EC A7 D5 E9 FB 53 6D D2
            :   C3 AA 64 7C 44 2E DE ED 31 16 45 4F BC 54 3F DD
            :   C1 DE 17 6E 8D 1B EC 71 B5 93 F3 DD 36 93 55 77
            :   68 89 89 17 62 20 F4 DA B1 31 D5 B5 1C 33 DE E2
            :  }

 In the public key of the above certificate, x equals
 0x577E324FE70F2B6DF45C437A0305E5FD2C89318C13CD0875401A026075689584
 and y equals
 0x601AEACABC660FDFB0CBC7567EBBA6EA8DE40FAE857C9AD0038895B916CCEB8F
 The corresponding private key d equals
 0x0B293BE050D0082BDAE785631A6BAB68F35B42786D6DDA56AFAF169891040F77

 In the signature of the above certificate, r equals
 0xC1DE176E8D1BEC71B593F3DD36935577688989176220F4DAB131D5B51C33DEE2
 and s equals
 0x3C2FC90944B727A9ECA7D5E9FB536DD2C3AA647C442EDEED3116454FBC543FDD

5.  Acknowledgements

   This document was created in accordance with "Russian Cryptographic
   Software Compatibility Agreement", signed by FGUE STC "Atlas",
   CRYPTO-PRO, Factor-TS, MD PREI, Infotecs GmbH, SPRCIS (SPbRCZI),
   Cryptocom, R-Alpha.  The goal of this agreement is to achieve mutual
   compatibility of the products and solutions.

   The authors wish to thank the following:

      Microsoft Corporation Russia for providing information about
      company products and solutions, and also for technical consulting
      in PKI.

      RSA Security Russia and Demos Co Ltd for active collaboration and
      critical help in creation of this document.

      RSA Security Inc for compatibility testing of the proposed data
      formats while incorporating them into the RSA Keon product.

      Baltimore Technology plc for compatibility testing of the proposed
      data formats while incorporating them into their UniCERT product.

      Peter Gutmann for his helpful "dumpasn1" program.

      Russ Housley (Vigil Security, LLC, housley@vigilsec.com) and
      Vasilij Sakharov (DEMOS Co Ltd, svp@dol.ru) for encouraging the
      authors to create this document.

      Grigorij Chudov for navigating the IETF process for this document.

      Prikhodko Dmitriy (VSTU, PrikhodkoDV@volgablob.ru) for invaluable
      assistance in proofreading this document and verifying the form
      and the contents of the ASN.1 structures mentioned or used in this
      document.

6.  References

6.1.  Normative References

   [GOST28147]   "Cryptographic Protection for Data Processing System",
                 GOST 28147-89, Gosudarstvennyi Standard of USSR,
                 Government Committee of the USSR for Standards, 1989.
                 (In Russian)

   [GOST3431195] "Information technology. Cryptographic Data Security.
                 Cashing function.", GOST 34.311-95, Council for
                 Standardization, Metrology and Certification of the
                 Commonwealth of Independence States (EASC), Minsk,
                 1995. (In Russian)

   [GOST3431095] "Information technology. Cryptographic Data Security.
                 Produce and check procedures of Electronic Digital
                 Signature based on Asymmetric Cryptographic
                 Algorithm.", GOST 34.310-95, Council for
                 Standardization, Metrology and Certification of the
                 Commonwealth of Independence States (EASC), Minsk,
                 1995. (In Russian)

   [GOST3431004] "Information technology. Cryptographic Data Security.
                 Formation and verification processes of (electronic)
                 digital signature based on Asymmetric Cryptographic
                 Algorithm.", GOST 34.310-2004, Council for
                 Standardization, Metrology and Certification of the
                 Commonwealth of Independence States (EASC), Minsk,
                 2004. (In Russian)

   [GOSTR341094] "Information technology. Cryptographic Data Security.
                 Produce and check procedures of Electronic Digital
                 Signatures based on Asymmetric Cryptographic
                 Algorithm.", GOST R 34.10-94, Gosudarstvennyi Standard
                 of Russian Federation, Government Committee of the
                 Russia for Standards, 1994.  (In Russian)

   [GOSTR341001] "Information technology. Cryptographic data security.
                 Signature and verification processes of [electronic]
                 digital signature.", GOST R 34.10-2001, Gosudarstvennyi
                 Standard of Russian Federation, Government Committee of
                 the Russia for Standards, 2001.  (In Russian)

   [GOSTR341194] "Information technology. Cryptographic Data Security.
                 Hashing function.", GOST R 34.10-94, Gosudarstvennyi
                 Standard of Russian Federation, Government Committee of
                 the Russia for Standards, 1994.  (In Russian)

   [CPALGS]      Popov, V., Kurepkin, I., and S. Leontiev, "Additional
                 Cryptographic Algorithms for Use with GOST 28147-89,
                 GOST R 34.10-94, GOST R 34.10-2001, and GOST R 34.11-94
                 Algorithms", RFC 4357, January 2006.

   [PKALGS]      Bassham, L., Polk, W., and R. Housley, "Algorithms and
                 Identifiers for the Internet X.509 Public Key
                 Infrastructure Certificate and Certificate Revocation
                 List (CRL) Profile", RFC 3279, April 2002.

   [PROFILE]     Housley, R., Polk, W., Ford, W., and D. Solo, "Internet
                 X.509 Public Key Infrastructure Certificate and
                 Certificate Revocation List (CRL) Profile", RFC 3280,
                 April 2002.

   [X.660]       ITU-T Recommendation X.660 Information Technology -
                 ASN.1 encoding rules: Specification of Basic Encoding
                 Rules (BER), Canonical Encoding Rules (CER) and
                 Distinguished Encoding Rules (DER), 1997.

   [RFC2119]     Bradner, S., "Key words for use in RFCs to Indicate
                 Requirement Levels", BCP 14, RFC 2119, March 1997.

6.2.  Informative References

   [Schneier95]  B. Schneier, Applied Cryptography, Second Edition, John
                 Wiley & Sons, Inc., 1995.

   [RFEDSL]      Russian Federal Electronic Digital Signature Law, 10
                 Jan 2002 N 1-FZ.

   [CMS]         Housley, R., "Cryptographic Message Syntax (CMS)", RFC
                 3852, July 2004.

Authors' Addresses

   Serguei Leontiev, Ed.
   CRYPTO-PRO
   38, Obraztsova,
   Moscow, 127018, Russian Federation

   EMail: lse@cryptopro.ru

   Dennis Shefanovski, Ed.
   Mobile TeleSystems OJSC
   4, Marksistskaya Str.,
   Moscow, 109147, Russian Federation

   EMail: dbs@mts.ru

   Grigorij Chudov
   CRYPTO-PRO
   38, Obraztsova,
   Moscow, 127018, Russian Federation

   EMail: chudov@cryptopro.ru

   Alexandr Afanasiev
   Factor-TS
   office 711, 14, Presnenskij val,
   Moscow, 123557, Russian Federation

   EMail: afa1@factor-ts.ru

   Nikolaj Nikishin
   Infotecs GmbH
   p/b 35, 80-5, Leningradskij prospekt,
   Moscow, 125315, Russian Federation

   EMail: nikishin@infotecs.ru

   Boleslav Izotov
   FGUE STC "Atlas"
   38, Obraztsova,
   Moscow, 127018, Russian Federation

   EMail: izotov@nii.voskhod.ru

   Elena Minaeva
   MD PREI
   build 3, 6A, Vtoroj Troitskij per.,
   Moscow, Russian Federation

   EMail: evminaeva@mail.ru

   Igor Ovcharenko
   MD PREI
   Office 600, 14, B.Novodmitrovskaya,
   Moscow, Russian Federation

   EMail: igori@mo.msk.ru

   Serguei Murugov
   R-Alpha
   4/1, Raspletina,
   Moscow, 123060, Russian Federation

   EMail: msm@top-cross.ru

   Igor Ustinov
   Cryptocom
   office 239, 51, Leninskij prospekt,
   Moscow, 119991, Russian Federation

   EMail: igus@cryptocom.ru

   Anatolij Erkin
   SPRCIS (SPbRCZI)
   1, Obrucheva,
   St.Petersburg, 195220, Russian Federation

   EMail: erkin@nevsky.net

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