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Network Working Group S. Leontiev, Ed.
Request for Comments: 4490 G. Chudov, Ed.
Category: Standards Track CRYPTO-PRO
May 2006


Using the GOST 28147-89, GOST R 34.11-94,
GOST R 34.10-94, and GOST R 34.10-2001 Algorithms with
Cryptographic Message Syntax (CMS)

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 describes the conventions for using the cryptographic
algorithms GOST 28147-89, GOST R 34.10-94, GOST R 34.10-2001, and
GOST R 34.11-94 with the Cryptographic Message Syntax (CMS). The CMS
is used for digital signature, digest, authentication, and encryption
of arbitrary message contents.






















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Table of Contents

1. Introduction ....................................................3
1.1. Terminology ................................................3
2. Message Digest Algorithms .......................................3
2.1. Message Digest Algorithm GOST R 34.11-94 ...................3
3. Signature Algorithms ............................................4
3.1. Signature Algorithm GOST R 34.10-94 ........................4
3.2. Signature Algorithm GOST R 34.10-2001 ......................5
4. Key Management Algorithms .......................................5
4.1. Key Agreement Algorithms ...................................6
4.1.1. Key Agreement Algorithms Based on GOST R
34.10-94/2001 Public ................................6
4.2. Key Transport Algorithms ...................................8
4.2.1. Key Transport Algorithm Based on GOST R
34.10-94/2001 Public ................................8
5. Content Encryption Algorithms ...................................9
5.1. Content Encryption Algorithm GOST 28147-89 ................10
6. MAC Algorithms .................................................10
6.1. HMAC with GOST R 34.11-94 .................................10
7. Use with S/MIME ................................................11
7.1. Parameter micalg ..........................................11
7.2. Attribute SMIMECapabilities ...............................11
8. Security Considerations ........................................12
9. Examples .......................................................12
9.1. Signed Message ............................................12
9.2. Enveloped Message Using Key Agreement .....................14
9.3. Enveloped Message Using Key Transport .....................17
10. ASN.1 Modules .................................................19
10.1. GostR3410-EncryptionSyntax ...............................19
10.2. GostR3410-94-SignatureSyntax .............................21
10.3. GostR3410-2001-SignatureSyntax ...........................22
11. Acknowledgements ..............................................23
12. References ....................................................24
12.1. Normative References .....................................24
12.2. Informative References ...................................25















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1. Introduction

The Cryptographic Message Syntax [CMS] is used for digital signature,
digest, authentication, and encryption of arbitrary message contents.
This companion specification describes the use of cryptographic
algorithms GOST 28147-89 [GOST28147], GOST R 34.10-94 [GOST3431095,
GOSTR341094], GOST R 34.10-2001 [GOST3431004, GOSTR341001], and GOST
R 34.11-94 [GOST3431195, GOSTR341194] in CMS, as proposed by the
CRYPTO-PRO Company for the "Russian Cryptographic Software
Compatibility Agreement" community. This document does not describe
these cryptographic algorithms; they are defined in corresponding
national standards.

The CMS values are generated using ASN.1 [X.208-88], using BER
encoding [X.209-88]. This document specifies the algorithm
identifiers for each algorithm, including ASN.1 for object
identifiers and any associated parameters.

The fields in the CMS employed by each algorithm are identified.

1.1. Terminology

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. Message Digest Algorithms

This section specifies the conventions for using the digest algorithm
GOST R 34.11-94 employed by CMS.

Digest values are located in the DigestedData digest field and the
Message Digest authenticated attribute. In addition, digest values
are input to signature algorithms.

2.1. Message Digest Algorithm GOST R 34.11-94

The hash function 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 the
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.






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The hash algorithm GOST R 34.11-94 has the following identifier:

id-GostR3411-94 OBJECT IDENTIFIER ::=
{ iso(1) member-body(2) ru(643) rans(2) cryptopro(2)
gostr3411(9) }

The AlgorithmIdentifier parameters field MUST be present, and the
parameters field MUST contain NULL. Implementations MAY accept the
GOST R 34.11-94 AlgorithmIdentifiers with absent parameters as well
as NULL parameters.

This function is always used with default parameters id-GostR3411-
94-CryptoProParamSet (see Section 8.2 of [CPALGS]).

When the Message Digest authenticated attribute is present, the
DigestedData digest contains a 32-byte digest in little-endian
representation:

GostR3411-94-Digest ::= OCTET STRING (SIZE (32))

3. Signature Algorithms

This section specifies the CMS procedures for the GOST R 34.10-94 and
GOST R 34.10-2001 signature algorithms.

Signature algorithm identifiers are located in the SignerInfo
signatureAlgorithm field of SignedData. Also, signature algorithm
identifiers are located in the SignerInfo signatureAlgorithm field of
countersignature attributes.

Signature values are located in the SignerInfo signature field of
SignedData. Also, signature values are located in the SignerInfo
signature field of countersignature attributes.

3.1. 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 signature algorithm
MUST be used conjointly with the GOST R 34.11-94 message digest
algorithm. This document does not contain the full GOST R 34.10-94
specification, which is fully described in [GOSTR341094] in Russian;
and a brief description in English can be found in [Schneier95], ch.
20.3, p. 495.

The GOST R 34.10-94 signature algorithm has the following public key
algorithm identifier:




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id-GostR3410-94-signature OBJECT IDENTIFIER ::= id-GostR3410-94

id-GostR3410-94 is defined in Section 2.3.1 of [CPPK].

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'.

GostR3410-94-Signature ::= OCTET STRING (SIZE (64))

3.2. Signature Algorithm GOST R 34.10-2001

GOST R 34.10-2001 has been developed by "GUBS of Federal Agency
Government Communication and Information" and "All-Russian Scientific
and Research Institute of Standardization". This signature algorithm
MUST be used conjointly with GOST R 34.11-94. This document does not
contain the full GOST R 34.10-2001 specification, which is fully
described in [GOSTR341001].

The signature algorithm GOST R 34.10-2001 has the following public
key algorithm identifier:

id-GostR3410-2001-signature OBJECT IDENTIFIER ::= id-GostR3410-2001

id-GostR3410-2001 is defined in Section 2.3.2 of [CPPK].

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.

GostR3410-2001-Signature ::= OCTET STRING (SIZE (64))

4. Key Management Algorithms

This chapter describes the key agreement and key transport
algorithms, based on the VKO GOST R 34.10-94 and VKO GOST R 34.10-
2001 key derivation algorithms, and the CryptoPro and GOST 28147-89
key wrap algorithms, described in [CPALGS]. They MUST be used only
with the content encryption algorithm GOST 28147-89, defined in
Section 5 of this document.







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4.1. Key Agreement Algorithms

This section specifies the conventions employed by CMS
implementations that support key agreement using both the VKO GOST R
34.10-94 and VKO GOST R 34.10-2001 algorithms, described in [CPALGS].

Key agreement algorithm identifiers are located in the EnvelopedData
RecipientInfos KeyAgreeRecipientInfo keyEncryptionAlgorithm and
AuthenticatedData RecipientInfos KeyAgreeRecipientInfo
keyEncryptionAlgorithm fields.

Wrapped content-encryption keys are located in the EnvelopedData
RecipientInfos KeyAgreeRecipientInfo RecipientEncryptedKeys
encryptedKey field. Wrapped message-authentication keys are located
in the AuthenticatedData RecipientInfos KeyAgreeRecipientInfo
RecipientEncryptedKeys encryptedKey field.

4.1.1. Key Agreement Algorithms Based on GOST R 34.10-94/2001 Public
Keys

The EnvelopedData RecipientInfos KeyAgreeRecipientInfo field is used
as follows:

The version MUST be 3.

The originator MUST be the originatorKey alternative. The
originatorKey algorithm field MUST contain the object identifier
id-GostR3410-94 or id-GostR3410-2001 and corresponding parameters
(defined in Sections 2.3.1, 2.3.2 of [CPPK]).

The originatorKey publicKey field MUST contain the sender's public
key.

keyEncryptionAlgorithm MUST be the id-GostR3410-94-CryptoPro-ESDH
or the id-GostR3410-2001-CryptoPro-ESDH algorithm identifier,
depending on the recipient public key algorithm. The algorithm
identifier parameter field for these algorithms is
KeyWrapAlgorithm, and this parameter MUST be present. The
KeyWrapAlgorithm denotes the algorithm and parameters used to
encrypt the content-encryption key with the pairwise key-
encryption key generated using the VKO GOST R 34.10-94 or the VKO
GOST R 34.10-2001 key agreement algorithms.

The algorithm identifiers and parameter syntax is:

id-GostR3410-94-CryptoPro-ESDH OBJECT IDENTIFIER ::=
{ iso(1) member-body(2) ru(643) rans(2) cryptopro(2)
gostR3410-94-CryptoPro-ESDH(97) }



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id-GostR3410-2001-CryptoPro-ESDH OBJECT IDENTIFIER ::=
{ iso(1) member-body(2) ru(643) rans(2) cryptopro(2)
gostR3410-2001-CryptoPro-ESDH(96) }

KeyWrapAlgorithm ::= AlgorithmIdentifier

When keyEncryptionAlgorithm is id-GostR3410-94-CryptoPro-ESDH,
KeyWrapAlgorithm algorithm MUST be the id-Gost28147-89-CryptoPro-
KeyWrap algorithm identifier.

id-Gost28147-89-CryptoPro-KeyWrap OBJECT IDENTIFIER ::=
{ iso(1) member-body(2) ru(643) rans(2) cryptopro(2)
keyWrap(13) cryptoPro(1) }

The CryptoPro Key Wrap algorithm is described in Sections 6.3 and
6.4 of [CPALGS].

When keyEncryptionAlgorithm is id-GostR3410-2001-CryptoPro-ESDH,
KeyWrapAlgorithm algorithm MUST be either the id-Gost28147-89-
CryptoPro-KeyWrap or id-Gost28147-89-None-KeyWrap algorithm
identifier.

id-Gost28147-89-None-KeyWrap OBJECT IDENTIFIER ::=
{ iso(1) member-body(2) ru(643) rans(2) cryptopro(2)
keyWrap(13) none(0) }

The GOST 28147-89 Key Wrap algorithm is described in Sections 6.1
and 6.2 of [CPALGS].

KeyWrapAlgorithm algorithm parameters MUST be present. The syntax
for KeyWrapAlgorithm algorithm parameters is

Gost28147-89-KeyWrapParameters ::=
SEQUENCE {
encryptionParamSet Gost28147-89-ParamSet,
ukm OCTET STRING (SIZE (8)) OPTIONAL
}
Gost28147-89-ParamSet ::= OBJECT IDENTIFIER

Gost28147-89-KeyWrapParameters ukm MUST be absent.

KeyAgreeRecipientInfo ukm MUST be present and contain eight
octets.

encryptedKey MUST encapsulate Gost28147-89-EncryptedKey, where
maskKey MUST be absent.





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Gost28147-89-EncryptedKey ::= SEQUENCE {
encryptedKey Gost28147-89-Key,
maskKey [0] IMPLICIT Gost28147-89-Key
OPTIONAL,
macKey Gost28147-89-MAC
}

Using the secret key corresponding to the originatorKey publicKey and
the recipient's public key, the algorithm VKO GOST R 34.10-94 or VKO
GOST R 34.10-2001 (described in [CPALGS]) is applied to produce the
KEK.

Then the key wrap algorithm, specified by KeyWrapAlgorithm, is
applied to produce CEK_ENC, CEK_MAC, and UKM. Gost28147-89-
KeyWrapParameters encryptionParamSet is used for all encryption
operations.

The resulting encrypted key (CEK_ENC) is placed in the Gost28147-89-
EncryptedKey encryptedKey field, its mac (CEK_MAC) is placed in the
Gost28147-89-EncryptedKey macKey field, and UKM is placed in the
KeyAgreeRecipientInfo ukm field.

4.2. Key Transport Algorithms

This section specifies the conventions employed by CMS
implementations that support key transport using both the VKO GOST R
34.10-94 and VKO GOST R 34.10-2001 algorithms, described in [CPALGS].

Key transport algorithm identifiers are located in the EnvelopedData
RecipientInfos KeyTransRecipientInfo keyEncryptionAlgorithm field.

Key transport encrypted content-encryption keys are located in the
EnvelopedData RecipientInfos KeyTransRecipientInfo encryptedKey
field.

4.2.1. Key Transport Algorithm Based on GOST R 34.10-94/2001 Public
Keys

The EnvelopedData RecipientInfos KeyTransRecipientInfo field is used
as follows:

The version MUST be 0 or 3.

keyEncryptionAlgorithm and parameters MUST be identical to the
recipient public key algorithm and parameters.






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encryptedKey encapsulates GostR3410-KeyTransport, which consists
of encrypted content-encryption key, its MAC, GOST 28147-89
algorithm parameters used for key encryption, the sender's
ephemeral public key, and UKM (UserKeyingMaterial; see [CMS],
Section 10.2.6).

transportParameters MUST be present.

ephemeralPublicKey MUST be present and its parameters, if present,
MUST be equal to the recipient public key parameters;

GostR3410-KeyTransport ::= SEQUENCE {
sessionEncryptedKey Gost28147-89-EncryptedKey,
transportParameters
[0] IMPLICIT GostR3410-TransportParameters OPTIONAL
}

GostR3410-TransportParameters ::= SEQUENCE {
encryptionParamSet OBJECT IDENTIFIER,
ephemeralPublicKey [0] IMPLICIT SubjectPublicKeyInfo OPTIONAL,
ukm OCTET STRING
}

Using the secret key corresponding to the GostR3410-
TransportParameters ephemeralPublicKey and the recipient's public
key, the algorithm VKO GOST R 34.10-94 or VKO GOST R 34.10-2001
(described in [CPALGS]) is applied to produce the KEK.

Then the CryptoPro key wrap algorithm is applied to produce CEK_ENC,
CEK_MAC, and UKM. GostR3410-TransportParameters encryptionParamSet
is used for all encryption operations.

The resulting encrypted key (CEK_ENC) is placed in the Gost28147-89-
EncryptedKey encryptedKey field, its mac (CEK_MAC) is placed in the
Gost28147-89-EncryptedKey macKey field, and UKM is placed in the
GostR3410-TransportParameters ukm field.

5. Content Encryption Algorithms

This section specifies the conventions employed by CMS
implementations that support content encryption using GOST 28147-89.

Content encryption algorithm identifiers are located in the
EnvelopedData EncryptedContentInfo contentEncryptionAlgorithm and the
EncryptedData EncryptedContentInfo contentEncryptionAlgorithm fields.






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Content encryption algorithms are used to encipher the content
located in the EnvelopedData EncryptedContentInfo encryptedContent
field and the EncryptedData EncryptedContentInfo encryptedContent
field.

5.1. Content Encryption Algorithm GOST 28147-89

This section specifies the use of GOST 28147-89 algorithm for data
encipherment.

GOST 28147-89 is fully described in [GOST28147] (in Russian).

This document specifies the following object identifier (OID) for
this algorithm:

id-Gost28147-89 OBJECT IDENTIFIER ::=
{ iso(1) member-body(2) ru(643) rans(2) cryptopro(2)
gost28147-89(21) }

Algorithm parameters MUST be present and have the following
structure:

Gost28147-89-Parameters ::=
SEQUENCE {
iv Gost28147-89-IV,
encryptionParamSet OBJECT IDENTIFIER
}

Gost28147-89-IV ::= OCTET STRING (SIZE (8))

encryptionParamSet specifies the set of corresponding Gost28147-89-
ParamSetParameters (see Section 8.1 of [CPALGS])

6. MAC Algorithms

This section specifies the conventions employed by CMS
implementations that support the message authentication code (MAC)
based on GOST R 34.11-94.

MAC algorithm identifiers are located in the AuthenticatedData
macAlgorithm field.

MAC values are located in the AuthenticatedData mac field.

6.1. HMAC with GOST R 34.11-94

HMAC_GOSTR3411 (K,text) function is based on hash function GOST R
34.11-94, as defined in Section 3 of [CPALGS].



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This document specifies the following OID for this algorithm:

id-HMACGostR3411-94 OBJECT IDENTIFIER ::=
{ iso(1) member-body(2) ru(643) rans(2) cryptopro(2)
hmacgostr3411(10) }

This algorithm has the same parameters as the GOST R 34.11-94 digest
algorithm and uses the same OIDs for their identification (see
[CPPK]).

7. Use with S/MIME

This section defines the use of the algorithms defined in this
document with S/MIME [RFC3851].

7.1. Parameter micalg

When using the algorithms defined in this document, micalg parameter
SHOULD be set to "gostr3411-94"; otherwise, it MUST be set to
"unknown".

7.2. Attribute SMIMECapabilities

The SMIMECapability value that indicates support for the GOST R
34.11-94 digest algorithm is the SEQUENCE with the capabilityID field
containing the object identifier id-GostR3411-94 and no parameters.
The DER encoding is:

30 08 06 06 2A 85 03 02 02 09

The SMIMECapability value that indicates support for the GOST
28147-89 encryption algorithm is the SEQUENCE with the capabilityID
field containing the object identifier id-Gost28147-89 and no
parameters. The DER encoding is:

30 08 06 06 2A 85 03 02 02 15

If the sender wishes to indicate support for a specific parameter
set, SMIMECapability parameters MUST contain the Gost28147-89-
Parameters structure. Recipients MUST ignore the Gost28147-89-
Parameters iv field and assume that the sender supports the
parameters specified in the Gost28147-89-Parameters
encryptionParamSet field.

The DER encoding for the SMIMECapability, indicating support for GOST
28147-89 with id-Gost28147-89-CryptoPro-A-ParamSet (see [CPALGS]),
is:




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30 1D 06 06 2A 85 03 02 02 15 30 13 04 08 00 00
00 00 00 00 00 00 06 07 2A 85 03 02 02 1F 01

8. Security Considerations

Conforming applications MUST use unique values for ukm and iv.
Recipients MAY verify that ukm and iv, specified by the sender, are
unique.

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

Cryptographic algorithm parameters affect algorithm strength. The
use of parameters not listed in [CPALGS] is NOT RECOMMENDED (see the
Security Considerations section of [CPALGS]).

Use of the same key for signature and key derivation is NOT
RECOMMENDED. When signed CMS documents are used as an analogue to a
manual signing, in the context of Russian Federal Electronic Digital
Signature Law [RFEDSL], signer certificate MUST contain the keyUsage
extension, it MUST be critical, and keyUsage MUST NOT include
keyEncipherment or keyAgreement (see [PROFILE], Section 4.2.1.3).
Application SHOULD be submitted for examination by an authorized
agency in appropriate levels of target_of_evaluation (TOE), according
to [RFEDSL], [RFLLIC], and [CRYPTOLIC].

9. Examples

Examples here are stored in the same format as the examples in
[RFC4134] and can be extracted using the same program.

If you want to extract without the program, copy all the lines
between the "|>" and "|<" markers, remove any page breaks, and remove
the "|" in the first column of each line. The result is a valid
Base64 blob that can be processed by any Base64 decoder.

9.1. Signed Message

This message is signed using the sample certificate from Section 4.2
of [CPPK]. The public key (x,y) from the same section can be used to
verify the message signature.

0 296: SEQUENCE {
4 9: OBJECT IDENTIFIER signedData
15 281: [0] {
19 277: SEQUENCE {
23 1: INTEGER 1



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26 12: SET {
28 10: SEQUENCE {
30 6: OBJECT IDENTIFIER id-GostR3411-94
38 0: NULL
: }
: }
40 27: SEQUENCE {
42 9: OBJECT IDENTIFIER data
53 14: [0] {
55 12: OCTET STRING 73 61 6D 70 6C 65 20 74 65 78 74 0A
: }
: }
69 228: SET {
72 225: SEQUENCE {
75 1: INTEGER 1
78 129: SEQUENCE {
81 109: SEQUENCE {
83 31: SET {
85 29: SEQUENCE {
87 3: OBJECT IDENTIFIER commonName
92 22: UTF8String 'GostR3410-2001 example'
: }
: }
116 18: SET {
118 16: SEQUENCE {
120 3: OBJECT IDENTIFIER organizationName
125 9: UTF8String 'CryptoPro'
: }
: }
136 11: SET {
138 9: SEQUENCE {
140 3: OBJECT IDENTIFIER countryName
145 2: PrintableString 'RU'
: }
: }
149 41: SET {
151 39: SEQUENCE {
153 9: OBJECT IDENTIFIER emailAddress
164 26: IA5String 'GostR3410-2001@example.com'
: }
: }
: }
192 16: INTEGER
: 2B F5 C6 1E C2 11 BD 17 C7 DC D4 62 66 B4 2E 21
: }
210 10: SEQUENCE {
212 6: OBJECT IDENTIFIER id-GostR3411-94
220 0: NULL



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: }
222 10: SEQUENCE {
224 6: OBJECT IDENTIFIER id-GostR3410-2001
232 0: NULL
: }
234 64: OCTET STRING
: C0 C3 42 D9 3F 8F FE 25 11 11 88 77 BF 89 C3 DB
: 83 42 04 D6 20 F9 68 2A 99 F6 FE 30 3B E4 F4 C8
: F8 D5 B4 DA FB E1 C6 91 67 34 1F BC A6 7A 0D 12
: 7B FD 10 25 C6 51 DB 8D B2 F4 8C 71 7E ED 72 A9
: }
: }
: }
: }
: }

|>GostR3410-2001-signed.bin
|MIIBKAYJKoZIhvcNAQcCoIIBGTCCARUCAQExDDAKBgYqhQMCAgkFADAbBgkqhkiG
|9w0BBwGgDgQMc2FtcGxlIHRleHQKMYHkMIHhAgEBMIGBMG0xHzAdBgNVBAMMFkdv
|c3RSMzQxMC0yMDAxIGV4YW1wbGUxEjAQBgNVBAoMCUNyeXB0b1BybzELMAkGA1UE
|BhMCUlUxKTAnBgkqhkiG9w0BCQEWGkdvc3RSMzQxMC0yMDAxQGV4YW1wbGUuY29t
|AhAr9cYewhG9F8fc1GJmtC4hMAoGBiqFAwICCQUAMAoGBiqFAwICEwUABEDAw0LZ
|P4/+JRERiHe/icPbg0IE1iD5aCqZ9v4wO+T0yPjVtNr74caRZzQfvKZ6DRJ7/RAl
|xlHbjbL0jHF+7XKp
|
9.2. Enveloped Message Using Key Agreement

This message is encrypted using the sample certificate from Section
4.2 of [CPPK] as a recipient certificate. The private key 'd' from
the same section can be used to decrypt this message.

0 420: SEQUENCE {
4 9: OBJECT IDENTIFIER envelopedData
15 405: [0] {
19 401: SEQUENCE {
23 1: INTEGER 2
26 336: SET {
30 332: [1] {
34 1: INTEGER 3
37 101: [0] {
39 99: [1] {
41 28: SEQUENCE {
43 6: OBJECT IDENTIFIER id-GostR3410-2001
51 18: SEQUENCE {
53 7: OBJECT IDENTIFIER
: id-GostR3410-2001-CryptoPro-XchA-ParamSet
62 7: OBJECT IDENTIFIER



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: id-GostR3411-94-CryptoProParamSet
: }
: }
71 67: BIT STRING, encapsulates {
74 64: OCTET STRING
: B3 55 39 F4 67 81 97 2B A5 C4 D9 84 1F 27 FB 81
: ED 08 32 E6 9A D4 F2 00 78 B8 FF 83 64 EA D2 1D
: B0 78 3C 7D FE 03 C1 F4 06 E4 3B CC 16 B9 C5 F6
: F6 19 37 1C 17 B8 A0 AA C7 D1 A1 94 B3 A5 36 20
: }
: }
: }
140 10: [1] {
142 8: OCTET STRING 2F F0 F6 D1 86 4B 32 8A
: }
152 30: SEQUENCE {
154 6: OBJECT IDENTIFIER id-GostR3410-2001-CryptoPro-ESDH
162 20: SEQUENCE {
164 7: OBJECT IDENTIFIER id-Gost28147-89-None-KeyWrap
173 9: SEQUENCE {
175 7: OBJECT IDENTIFIER
: id-Gost28147-89-CryptoPro-A-ParamSet
: }
: }
: }
184 179: SEQUENCE {
187 176: SEQUENCE {
190 129: SEQUENCE {
193 109: SEQUENCE {
195 31: SET {
197 29: SEQUENCE {
199 3: OBJECT IDENTIFIER commonName
204 22: UTF8String 'GostR3410-2001 example'
: }
: }
228 18: SET {
230 16: SEQUENCE {
232 3: OBJECT IDENTIFIER organizationName
237 9: UTF8String 'CryptoPro'
: }
: }
248 11: SET {
250 9: SEQUENCE {
252 3: OBJECT IDENTIFIER countryName
257 2: PrintableString 'RU'
: }
: }
261 41: SET {



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263 39: SEQUENCE {
265 9: OBJECT IDENTIFIER emailAddress
276 26: IA5String 'GostR3410-2001@example.com'
: }
: }
: }
304 16: INTEGER
: 2B F5 C6 1E C2 11 BD 17 C7 DC D4 62 66 B4 2E 21
: }
322 42: OCTET STRING, encapsulates {
324 40: SEQUENCE {
326 32: OCTET STRING
: 16 A3 1C E7 CE 4E E9 0D F1 EC 74 69 04 68 1E C7
: 9F 3A ED B8 3B 1F 1D 4A 7E F9 A5 D9 CB 19 D5 E8
360 4: OCTET STRING
: 93 FD 86 7E
: }
: }
: }
: }
: }
: }
366 56: SEQUENCE {
368 9: OBJECT IDENTIFIER data
379 29: SEQUENCE {
381 6: OBJECT IDENTIFIER id-Gost28147-89
389 19: SEQUENCE {
391 8: OCTET STRING B7 35 E1 7A 07 35 A2 1D
401 7: OBJECT IDENTIFIER id-Gost28147-89-CryptoPro-A-ParamSet
: }
: }
410 12: [0] 39 B1 8A F4 BF A9 E2 65 25 B6 55 C9
: }
: }
: }
: }

|>GostR3410-2001-keyagree.bin
|MIIBpAYJKoZIhvcNAQcDoIIBlTCCAZECAQIxggFQoYIBTAIBA6BloWMwHAYGKoUD
|AgITMBIGByqFAwICJAAGByqFAwICHgEDQwAEQLNVOfRngZcrpcTZhB8n+4HtCDLm
|mtTyAHi4/4Nk6tIdsHg8ff4DwfQG5DvMFrnF9vYZNxwXuKCqx9GhlLOlNiChCgQI
|L/D20YZLMoowHgYGKoUDAgJgMBQGByqFAwICDQAwCQYHKoUDAgIfATCBszCBsDCB
|gTBtMR8wHQYDVQQDDBZHb3N0UjM0MTAtMjAwMSBleGFtcGxlMRIwEAYDVQQKDAlD
|cnlwdG9Qcm8xCzAJBgNVBAYTAlJVMSkwJwYJKoZIhvcNAQkBFhpHb3N0UjM0MTAt
|MjAwMUBleGFtcGxlLmNvbQIQK/XGHsIRvRfH3NRiZrQuIQQqMCgEIBajHOfOTukN
|8ex0aQRoHsefOu24Ox8dSn75pdnLGdXoBAST/YZ+MDgGCSqGSIb3DQEHATAdBgYq
|hQMCAhUwEwQItzXhegc1oh0GByqFAwICHwGADDmxivS/qeJlJbZVyQ==
|


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9.3. Enveloped Message Using Key Transport

This message is encrypted using the sample certificate from Section
4.2 of [CPPK] as a recipient certificate. The private key 'd' from
the same section can be used to decrypt this message.

0 423: SEQUENCE {
4 9: OBJECT IDENTIFIER envelopedData
15 408: [0] {
19 404: SEQUENCE {
23 1: INTEGER 0
26 339: SET {
30 335: SEQUENCE {
34 1: INTEGER 0
37 129: SEQUENCE {
40 109: SEQUENCE {
42 31: SET {
44 29: SEQUENCE {
46 3: OBJECT IDENTIFIER commonName
51 22: UTF8String 'GostR3410-2001 example'
: }
: }
75 18: SET {
77 16: SEQUENCE {
79 3: OBJECT IDENTIFIER organizationName
84 9: UTF8String 'CryptoPro'
: }
: }
95 11: SET {
97 9: SEQUENCE {
99 3: OBJECT IDENTIFIER countryName
104 2: PrintableString 'RU'
: }
: }
108 41: SET {
110 39: SEQUENCE {
112 9: OBJECT IDENTIFIER emailAddress
123 26: IA5String 'GostR3410-2001@example.com'
: }
: }
: }
151 16: INTEGER
: 2B F5 C6 1E C2 11 BD 17 C7 DC D4 62 66 B4 2E 21
: }
169 28: SEQUENCE {
171 6: OBJECT IDENTIFIER id-GostR3410-2001
179 18: SEQUENCE {
181 7: OBJECT IDENTIFIER



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: id-GostR3410-2001-CryptoPro-XchA-ParamSet
190 7: OBJECT IDENTIFIER
: id-GostR3411-94-CryptoProParamSet
: }
: }
199 167: OCTET STRING, encapsulates {
202 164: SEQUENCE {
205 40: SEQUENCE {
207 32: OCTET STRING
: 6A 2F A8 21 06 95 68 9F 9F E4 47 AA 9E CB 61 15
: 2B 7E 41 60 BC 5D 8D FB F5 3D 28 1B 18 9A F9 75
241 4: OCTET STRING
: 36 6D 98 B7
: }
247 120: [0] {
249 7: OBJECT IDENTIFIER
: id-Gost28147-89-CryptoPro-A-ParamSet
258 99: [0] {
260 28: SEQUENCE {
262 6: OBJECT IDENTIFIER id-GostR3410-2001
270 18: SEQUENCE {
272 7: OBJECT IDENTIFIER
: id-GostR3410-2001-CryptoPro-XchA-ParamSet
281 7: OBJECT IDENTIFIER
: id-GostR3411-94-CryptoProParamSet
: }
: }
290 67: BIT STRING encapsulates {
293 64: OCTET STRING
: 4D 2B 2F 33 90 E6 DC A3 DD 55 2A CD DF E0 EF FB
: 31 F7 73 7E 4E FF BF 78 89 8A 2B C3 CD 31 94 04
: 4B 0E 60 48 96 1F DB C7 5D 12 6F DA B2 40 8A 77
: B5 BD EA F2 EC 34 CB 23 9F 9B 8B DD 9E 12 C0 F6
: }
: }
359 8: OCTET STRING
: 97 95 E3 2C 2B AD 2B 0C
: }
: }
: }
: }
: }
369 56: SEQUENCE {
371 9: OBJECT IDENTIFIER data
382 29: SEQUENCE {
384 6: OBJECT IDENTIFIER id-Gost28147-89
392 19: SEQUENCE {
394 8: OCTET STRING BC 10 8B 1F 0B FF 34 29



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404 7: OBJECT IDENTIFIER id-Gost28147-89-CryptoPro-A-ParamSet
: }
: }
413 12: [0] AA 8E 72 1D EE 4F B3 2E E3 0F A1 37
: }
: }
: }
: }

|>GostR3410-2001-keytrans.bin
|MIIBpwYJKoZIhvcNAQcDoIIBmDCCAZQCAQAxggFTMIIBTwIBADCBgTBtMR8wHQYD
|VQQDDBZHb3N0UjM0MTAtMjAwMSBleGFtcGxlMRIwEAYDVQQKDAlDcnlwdG9Qcm8x
|CzAJBgNVBAYTAlJVMSkwJwYJKoZIhvcNAQkBFhpHb3N0UjM0MTAtMjAwMUBleGFt
|cGxlLmNvbQIQK/XGHsIRvRfH3NRiZrQuITAcBgYqhQMCAhMwEgYHKoUDAgIkAAYH
|KoUDAgIeAQSBpzCBpDAoBCBqL6ghBpVon5/kR6qey2EVK35BYLxdjfv1PSgbGJr5
|dQQENm2Yt6B4BgcqhQMCAh8BoGMwHAYGKoUDAgITMBIGByqFAwICJAAGByqFAwIC
|HgEDQwAEQE0rLzOQ5tyj3VUqzd/g7/sx93N+Tv+/eImKK8PNMZQESw5gSJYf28dd
|Em/askCKd7W96vLsNMsjn5uL3Z4SwPYECJeV4ywrrSsMMDgGCSqGSIb3DQEHATAd
|BgYqhQMCAhUwEwQIvBCLHwv/NCkGByqFAwICHwGADKqOch3uT7Mu4w+hNw==
|
10. ASN.1 Modules

Additional ASN.1 modules, referenced here, can be found in [CPALGS].

10.1. GostR3410-EncryptionSyntax

GostR3410-EncryptionSyntax
{ iso(1) member-body(2) ru(643) rans(2) cryptopro(2)
other(1) modules(1) gostR3410-EncryptionSyntax(5) 2 }
DEFINITIONS ::=
BEGIN
-- EXPORTS All --
-- The types and values defined in this module are exported for
-- use in the other ASN.1 modules contained within the Russian
-- Cryptography "GOST" & "GOST R" Specifications, and for the use
-- of other applications which will use them to access Russian
-- Cryptography services. Other applications may use them for
-- their own purposes, but this will not constrain extensions and
-- modifications needed to maintain or improve the Russian
-- Cryptography service.
IMPORTS
id-CryptoPro-algorithms,
gost28147-89-EncryptionSyntax,
gostR3410-94-PKISyntax,
gostR3410-2001-PKISyntax,
ALGORITHM-IDENTIFIER,
cryptographic-Gost-Useful-Definitions



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FROM Cryptographic-Gost-Useful-Definitions -- in [CPALGS]
{ iso(1) member-body(2) ru(643) rans(2)
cryptopro(2) other(1) modules(1)
cryptographic-Gost-Useful-Definitions(0) 1 }
id-GostR3410-94
FROM GostR3410-94-PKISyntax -- in [CPALGS]
gostR3410-94-PKISyntax
id-GostR3410-2001
FROM GostR3410-2001-PKISyntax -- in [CPALGS]
gostR3410-2001-PKISyntax
Gost28147-89-ParamSet,
Gost28147-89-EncryptedKey
FROM Gost28147-89-EncryptionSyntax -- in [CPALGS]
gost28147-89-EncryptionSyntax
SubjectPublicKeyInfo
FROM PKIX1Explicit88 {iso(1) identified-organization(3)
dod(6) internet(1) security(5) mechanisms(5) pkix(7)
id-mod(0) id-pkix1-explicit-88(1)}
;
-- CMS/PKCS#7 key agreement algorithms & parameters
Gost28147-89-KeyWrapParameters ::=
SEQUENCE {
encryptionParamSet Gost28147-89-ParamSet,
ukm OCTET STRING (SIZE (8)) OPTIONAL
}
id-Gost28147-89-CryptoPro-KeyWrap OBJECT IDENTIFIER ::=
{ id-CryptoPro-algorithms keyWrap(13) cryptoPro(1) }
id-Gost28147-89-None-KeyWrap OBJECT IDENTIFIER ::=
{ id-CryptoPro-algorithms keyWrap(13) none(0) }
Gost28147-89-KeyWrapAlgorithms ALGORITHM-IDENTIFIER ::= {
{ Gost28147-89-KeyWrapParameters IDENTIFIED BY
id-Gost28147-89-CryptoPro-KeyWrap } |
{ Gost28147-89-KeyWrapParameters IDENTIFIED BY
id-Gost28147-89-None-KeyWrap }
}
id-GostR3410-2001-CryptoPro-ESDH OBJECT IDENTIFIER ::=
{ id-CryptoPro-algorithms
gostR3410-2001-CryptoPro-ESDH(96) }
id-GostR3410-94-CryptoPro-ESDH OBJECT IDENTIFIER ::=
{ id-CryptoPro-algorithms
gostR3410-94-CryptoPro-ESDH(97) }
-- CMS/PKCS#7 key transport algorithms & parameters
-- OID for CMS/PKCS#7 Key transport is id-GostR3410-94 from
-- GostR3410-94-PKISyntax or id-GostR3410-2001 from
-- GostR3410-2001-PKISyntax
-- Algorithms for CMS/PKCS#7 Key transport are
-- GostR3410-94-PublicKeyAlgorithms from
-- GostR3410-94-PKISyntax or



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-- GostR3410-2001-PublicKeyAlgorithms from
-- GostR3410-2001-PKISyntax
-- SMIMECapability for CMS/PKCS#7 Key transport are
-- id-GostR3410-94 from GostR3410-94-PKISyntax or
-- id-GostR3410-2001 from GostR3410-2001-PKISyntax
id-GostR3410-94-KeyTransportSMIMECapability
OBJECT IDENTIFIER ::= id-GostR3410-94
id-GostR3410-2001-KeyTransportSMIMECapability
OBJECT IDENTIFIER ::= id-GostR3410-2001
GostR3410-KeyTransport ::=
SEQUENCE {
sessionEncryptedKey Gost28147-89-EncryptedKey,
transportParameters [0]
IMPLICIT GostR3410-TransportParameters OPTIONAL
}
GostR3410-TransportParameters ::=
SEQUENCE {
encryptionParamSet Gost28147-89-ParamSet,
ephemeralPublicKey [0]
IMPLICIT SubjectPublicKeyInfo OPTIONAL,
ukm OCTET STRING ( SIZE(8) )
}
END -- GostR3410-EncryptionSyntax

10.2. GostR3410-94-SignatureSyntax

GostR3410-94-SignatureSyntax
{ iso(1) member-body(2) ru(643) rans(2) cryptopro(2)
other(1) modules(1) gostR3410-94-SignatureSyntax(3) 1 }
DEFINITIONS ::=
BEGIN
-- EXPORTS All --
-- The types and values defined in this module are exported for
-- use in the other ASN.1 modules contained within the Russian
-- Cryptography "GOST" & "GOST R" Specifications, and for the use
-- of other applications which will use them to access Russian
-- Cryptography services. Other applications may use them for
-- their own purposes, but this will not constrain extensions and
-- modifications needed to maintain or improve the Russian
-- Cryptography service.
IMPORTS
gostR3410-94-PKISyntax, ALGORITHM-IDENTIFIER,
cryptographic-Gost-Useful-Definitions
FROM Cryptographic-Gost-Useful-Definitions -- in [CPALGS]
{ iso(1) member-body(2) ru(643) rans(2)
cryptopro(2) other(1) modules(1)
cryptographic-Gost-Useful-Definitions(0) 1 }
id-GostR3410-94,



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GostR3410-94-PublicKeyParameters
FROM GostR3410-94-PKISyntax -- in [CPALGS]
gostR3410-94-PKISyntax
;
-- GOST R 34.10-94 signature data type
GostR3410-94-Signature ::=
OCTET STRING (SIZE (64))
-- GOST R 34.10-94 signature algorithm & parameters
GostR3410-94-CMSSignatureAlgorithms ALGORITHM-IDENTIFIER ::= {
{ GostR3410-94-PublicKeyParameters IDENTIFIED BY
id-GostR3410-94 }
}

END -- GostR3410-94-SignatureSyntax

10.3. GostR3410-2001-SignatureSyntax

GostR3410-2001-SignatureSyntax
{ iso(1) member-body(2) ru(643) rans(2) cryptopro(2)
other(1) modules(1) gostR3410-2001-SignatureSyntax(10) 1 }
DEFINITIONS ::=
BEGIN
-- EXPORTS All --
-- The types and values defined in this module are exported for
-- use in the other ASN.1 modules contained within the Russian
-- Cryptography "GOST" & "GOST R" Specifications, and for the use
-- of other applications which will use them to access Russian
-- Cryptography services. Other applications may use them for
-- their own purposes, but this will not constrain extensions and
-- modifications needed to maintain or improve the Russian
-- Cryptography service.
IMPORTS
gostR3410-2001-PKISyntax, ALGORITHM-IDENTIFIER,
cryptographic-Gost-Useful-Definitions
FROM Cryptographic-Gost-Useful-Definitions -- in [CPALGS]
{ iso(1) member-body(2) ru(643) rans(2)
cryptopro(2) other(1) modules(1)
cryptographic-Gost-Useful-Definitions(0) 1 }
id-GostR3410-2001,
GostR3410-2001-PublicKeyParameters -- in [CPALGS]
FROM GostR3410-2001-PKISyntax
gostR3410-2001-PKISyntax
;
-- GOST R 34.10-2001 signature data type
GostR3410-2001-Signature ::=
OCTET STRING (SIZE (64))
-- GOST R 34.10-2001 signature algorithms and parameters
GostR3410-2001-CMSSignatureAlgorithms



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ALGORITHM-IDENTIFIER ::= {
{ GostR3410-2001-PublicKeyParameters IDENTIFIED BY
id-GostR3410-2001 }
}
END -- GostR3410-2001-SignatureSyntax

11. 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 aim of this agreement is to achieve mutual
compatibility of the products and solutions.

The authors wish to thank:

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.

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.

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.




















Leontiev & Chudov Standards Track [Page 23]

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12. References

12.1. Normative References

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

[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.

[CPPK] Leontiev, S., Ed. and D. Shefanovskij, Ed., "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", RFC 4491,
May 2006.

[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)







Leontiev & Chudov Standards Track [Page 24]

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[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)

[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.

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

[RFC3851] Ramsdell, B., "Secure/Multipurpose Internet Mail
Extensions (S/MIME) Version 3.1 Message Specification",
RFC 3851, July 2004.

[X.208-88] CCITT. Recommendation X.208: Specification of Abstract
Syntax Notation One (ASN.1). 1988.

[X.209-88] CCITT. Recommendation X.209: Specification of Basic
Encoding Rules for Abstract Syntax Notation One
(ASN.1). 1988.

12.2. Informative References

[CRYPTOLIC] "Russian Federal Government Regulation on Licensing of
Selected Activity Categories in Cryptography Area", 23
Sep 2002 N 691.

[RFC4134] Hoffman, P., "Examples of S/MIME Messages", RFC 4134,
July 2005.

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



Leontiev & Chudov Standards Track [Page 25]

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[RFLLIC] "Russian Federal Law on Licensing of Selected Activity
Categories", 08 Aug 2001 N 128-FZ.

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














































Leontiev & Chudov Standards Track [Page 26]

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Authors' Addresses

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

EMail: lse@cryptopro.ru


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

EMail: chudov@cryptopro.ru


Vladimir Popov
CRYPTO-PRO
38, Obraztsova,
Moscow, 127018, Russian Federation

EMail: vpopov@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



Leontiev & Chudov Standards Track [Page 27]

RFC 4490 Using GOST with CMS May 2006


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













Leontiev & Chudov Standards Track [Page 28]

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Full Copyright Statement

Copyright (C) The Internet Society (2006).

This document is subject to the rights, licenses and restrictions
contained in BCP 78, and except as set forth therein, the authors
retain all their rights.

This document and the information contained herein are provided on an
"AS IS" basis and THE CONTRIBUTOR, THE ORGANIZATION HE/SHE REPRESENTS
OR IS SPONSORED BY (IF ANY), THE INTERNET SOCIETY AND THE INTERNET
ENGINEERING TASK FORCE DISCLAIM ALL WARRANTIES, EXPRESS OR IMPLIED,
INCLUDING BUT NOT LIMITED TO ANY WARRANTY THAT THE USE OF THE
INFORMATION HEREIN WILL NOT INFRINGE ANY RIGHTS OR ANY IMPLIED
WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.

Intellectual Property

The IETF takes no position regarding the validity or scope of any
Intellectual Property Rights or other rights that might be claimed to
pertain to the implementation or use of the technology described in
this document or the extent to which any license under such rights
might or might not be available; nor does it represent that it has
made any independent effort to identify any such rights. Information
on the procedures with respect to rights in RFC documents can be
found in BCP 78 and BCP 79.

Copies of IPR disclosures made to the IETF Secretariat and any
assurances of licenses to be made available, or the result of an
attempt made to obtain a general license or permission for the use of
such proprietary rights by implementers or users of this
specification can be obtained from the IETF on-line IPR repository at
http://www.ietf.org/ipr.

The IETF invites any interested party to bring to its attention any
copyrights, patents or patent applications, or other proprietary
rights that may cover technology that may be required to implement
this standard. Please address the information to the IETF at
ietf-ipr@ietf.org.

Acknowledgement

Funding for the RFC Editor function is provided by the IETF
Administrative Support Activity (IASA).







Leontiev & Chudov Standards Track [Page 29]