Network Working Group P.V. Smirnov, Ed. Internet-Draft M.V. Paramonova Intended status: Informational M.V. Khomenko Expires: 6 November 2022 A.O. Makarov CryptoPro 5 May 2022 Using GOST Algorithms for XML Digital Signatures draft-smirnov-xmldsig-05 Abstract This document defines new algorithm identifiers for GOST cryptographic algorithms and methods of including GOST-based digital signature and hash-based message authentication code (HMAC) within the XML document. All statements in this document are techically equivalent to [R1323565.1.033-2020]. Status of This Memo This Internet-Draft is submitted in full conformance with the provisions of BCP 78 and BCP 79. Internet-Drafts are working documents of the Internet Engineering Task Force (IETF). Note that other groups may also distribute working documents as Internet-Drafts. The list of current Internet- Drafts is at https://datatracker.ietf.org/drafts/current/. Internet-Drafts are draft documents valid for a maximum of six months and may be updated, replaced, or obsoleted by other documents at any time. It is inappropriate to use Internet-Drafts as reference material or to cite them other than as "work in progress." This Internet-Draft will expire on 6 November 2022. Copyright Notice Copyright (c) 2022 IETF Trust and the persons identified as the document authors. All rights reserved. Smirnov, et al. Expires 6 November 2022 [Page 1] Internet-Draft Using GOST Algorithms for XML Digital Si May 2022 This document is subject to BCP 78 and the IETF Trust's Legal Provisions Relating to IETF Documents (https://trustee.ietf.org/ license-info) in effect on the date of publication of this document. Please review these documents carefully, as they describe your rights and restrictions with respect to this document. Code Components extracted from this document must include Revised BSD License text as described in Section 4.e of the Trust Legal Provisions and are provided without warranty as described in the Revised BSD License. Table of Contents 1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 3 1.1. Requirements language . . . . . . . . . . . . . . . . . . 4 2. XML Namespaces and Prefixes . . . . . . . . . . . . . . . . . 4 3. Using GOST Algorithms to Construct an XML Digital Signature Elements . . . . . . . . . . . . . . . . . . . . . . . . 5 3.1. Hash Algorithm in DigestMethod Element . . . . . . . . . 5 3.1.1. GOST R 34.11-2012 Algorithm with 256-bit Hash Code in DigestMethod Element . . . . . . . . . . . . . . . . 5 3.1.2. GOST R 34.11-2012 Algorithm with 512-bit Hash Code in DigestMethod Element . . . . . . . . . . . . . . . . 6 3.1.3. GOST R 34.11-94 Algorithm in DigestMethod Element . . 6 3.2. Signature Algorithm in SignatureMethod Element . . . . . 7 3.2.1. GOST R 34.10-2012 Algorithm with 256-bit Key in SignatureMethod Element . . . . . . . . . . . . . . . 7 3.2.2. GOST R 34.10-2012 Algorithm with 512-bit Key in SignatureMethod Element . . . . . . . . . . . . . . . 8 3.2.3. GOST R 34.10-2001 Algorithm in SignatureMethod Element . . . . . . . . . . . . . . . . . . . . . . . 8 3.3. HMAC Algorithm in SignatureMethod Element . . . . . . . . 9 3.3.1. GOST R 34.11-2012 algorithm with 256-bit key in SignatureMethod Element . . . . . . . . . . . . . . . 9 3.3.2. GOST R 34.11-2012 algorithm with 512-bit key in SignatureMethod Element . . . . . . . . . . . . . . . 9 4. Including GOST-based Key Material in XML Digital Signature . 10 4.1. Public Key in DEREncodedKeyValue Element . . . . . . . . 10 4.2. Public Key in KeyValue Element . . . . . . . . . . . . . 10 4.2.1. GOST R 34.10-2012 256-bit Public Key in GOSTR34102012-256-KeyValue Element . . . . . . . . . 12 4.2.2. GOST R 34.10-2012 512-bit Public Key in GOSTR34102012-512-KeyValue Element . . . . . . . . . 13 4.2.3. GOST R 34.10-2001 Public Key in GOSTR34102001KeyValue Element . . . . . . . . . . . . . . . . . . . . . . . 14 4.3. Public Key Reference in RetrievalMethod Element . . . . . 14 5. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 15 5.1. XML Sub-namespace Registration for urn:ietf:params:xml:ns:cpxmlsec . . . . . . . . . . . . 15 Smirnov, et al. Expires 6 November 2022 [Page 2] Internet-Draft Using GOST Algorithms for XML Digital Si May 2022 5.2. XML Sub-Namespace Registration for urn:ietf:params:xml:ns:cpxmlsec:algorithms:gostr34112012-256 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 5.3. XML Sub-Namespace Registration for urn:ietf:params:xml:ns:cpxmlsec:algorithms:gostr34112012-512 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 5.4. XML Sub-Namespace Registration for urn:ietf:params:xml:ns:cpxmlsec:algorithms:gostr3411 . . 17 5.5. XML Sub-Namespace Registration for urn:ietf:params:xml:ns:c pxmlsec:algorithms:gostr34102012-gostr34112012-256 . . . 18 5.6. XML Sub-Namespace Registration for urn:ietf:params:xml:ns:c pxmlsec:algorithms:gostr34102012-gostr34112012-512 . . . 19 5.7. XML Sub-Namespace Registration for urn:ietf:params:xml:ns:c pxmlsec:algorithms:gostr34102001-gostr3411 . . . . . . . 20 5.8. XML Sub-Namespace Registration for urn:ietf:params:xml:ns:c pxmlsec:algorithms:hmac-gostr34112012-256 . . . . . . . 21 5.9. XML Sub-Namespace Registration for urn:ietf:params:xml:ns:c pxmlsec:algorithms:hmac-gostr34112012-512 . . . . . . . 22 5.10. XML Sub-Namespace Registration for urn:ietf:params:xml:ns:c pxmlsec:types:gostr34102012-256-keyvalue . . . . . . . . 23 5.11. XML Sub-Namespace Registration for urn:ietf:params:xml:ns:c pxmlsec:types:gostr34102012-512-keyvalue . . . . . . . . 24 5.12. XML Sub-Namespace Registration for urn:ietf:params:xml:ns:cpxmlsec:types:gostr34102001-keyvalue . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 5.13. XML Schema Registration . . . . . . . . . . . . . . . . . 26 6. References . . . . . . . . . . . . . . . . . . . . . . . . . 26 6.1. Normative References . . . . . . . . . . . . . . . . . . 26 6.2. Informative References . . . . . . . . . . . . . . . . . 28 Appendix A. CPXMLSEC XML Schema . . . . . . . . . . . . . . . . 29 Appendix B. Test Examples . . . . . . . . . . . . . . . . . . . 31 B.1. Signed XML document with GOST R 34.10-2012 algorithm and 256-bit hash code in DigestMethod element . . . . . . . . 31 B.2. Signed XML document with GOST R 34.10-2012 algorithm and 512-bit hash code in DigestMethod element . . . . . . . . 33 B.3. Signed XML document with GOST R 34.10-2001 algorithm in SignatureMethod element . . . . . . . . . . . . . . . . . 36 B.4. Signed XML document with X.509 certificate in KeyInfo element . . . . . . . . . . . . . . . . . . . . . . . . . 38 B.5. Signed XML document with GOST R 34.10-2012 algorithm and 256-bit public key in DEREncodedKeyValue . . . . . . . . 41 Appendix C. Acknowledgments . . . . . . . . . . . . . . . . . . 44 Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . 44 1. Introduction This document specifies identifiers (see Section 3) for the following Russian digital signature and hash algorithms (GOST algorithms): Smirnov, et al. Expires 6 November 2022 [Page 3] Internet-Draft Using GOST Algorithms for XML Digital Si May 2022 * GOST 34.11-2012 [GOST3411-2012] hash algorithm (the English version can be found in [RFC6986]), * GOST 34.10-2012 [GOST3410-2012] digital signature algorithm (the English version can be found in [RFC7091]). This document specifies identifiers (see Section 3.3) for GOST-based HMAC transformations defined in the R 50.1.113-2016 [R501113-2016] (the English version can be found in [RFC7836]). These identifiers are meant to use in XML Digital Signature Syntax (see [XMLDSIG]). In addition, new methods of carrying GOST-based key material within XML documents are defined (see Section 4). Also included are namespace identifiers, prefixes and XML schema definition required to make specification complete (see Section 2). 1.1. Requirements language 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. XML Namespaces and Prefixes This document uses XML elements from four different XML schemas (see Table 1). Every XML schema is assigned to one XML namespace. The following XML namespace identifier MUST be used as targetNamespace in the XML schema preamble: urn:ietf:params:xml:ns:cpxmlsec The other XML namespaces are external. Their identifiers are specified in XML schema preamble in corresponding attributes. Table 1 lists full set of XML namespaces used in this document, identifiers and assigned prefixes. Table 1 also defines abbreviations for corresponding XML schemas. Smirnov, et al. Expires 6 November 2022 [Page 4] Internet-Draft Using GOST Algorithms for XML Digital Si May 2022 +-----------------+------------------------------------+----------+---------------+ | XML schema name | XML namespace identifier | Prefix | Reference | +-----------------+------------------------------------+----------+---------------+ | DS schema | http://www.w3.org/2000/09/xmldsig# | ds | [XMLDSIG] | +-----------------+------------------------------------+----------+---------------+ | DSIG11 schema | http://www.w3.org/2009/xmldsig11# | dsig11 | [XMLDSIG] | +-----------------+------------------------------------+----------+---------------+ | XS schema | http://www.w3.org/2001/XMLSchema | xs | [XMLSCHEMA-1]| | | | | [XMLSCHEMA-2]| +-----------------+------------------------------------+----------+---------------+ | CPXMLSEC schema | urn:ietf:params:xml:ns:cpxmlsec | cpxmlsec | This document | +-----------------+------------------------------------+----------+---------------+ Table 1 Any element or attribute whose name starts with the prefix from the Table 1 is considered to belong to the corresponding XML schema. This document uses prefixes to prevent possible collisions with elements of same names from different namespaces. Chosen prefixes have no special meaning and MAY be replaced by others. The CPXMLSEC schema extends DS schema to support GOST algorithms. The CPXMLSEC schema uses XS schema elements (see [XMLSCHEMA-1] and [XMLSCHEMA-2]). The DS schema and DSIG11 schema definitions are described in accordance with [XMLDSIG]. The subsequent CPXMLSEC schema preamble is to be used with XML Schema definitions given in the remaining sections of this document. 3. Using GOST Algorithms to Construct an XML Digital Signature Elements 3.1. Hash Algorithm in DigestMethod Element 3.1.1. GOST R 34.11-2012 Algorithm with 256-bit Hash Code in DigestMethod Element For GOST R 34.11-2012 algorithm with 256-bit hash code the following identifier MUST be used: Smirnov, et al. Expires 6 November 2022 [Page 5] Internet-Draft Using GOST Algorithms for XML Digital Si May 2022 urn:ietf:params:xml:ns:cpxmlsec:algorithms:gostr34112012-256 The following sample includes GOST R 34.11-2012 algorithm with 256-bit hash code in ds:DigestMethod element: The hash code MUST be represented in little-endian and base64-encoded [RFC4648], then it is included in the ds:DigestValue element (see Section 4.4.3.6 of [XMLDSIG]). 3.1.2. GOST R 34.11-2012 Algorithm with 512-bit Hash Code in DigestMethod Element For GOST R 34.11-2012 algorithm with 512-bit hash code the following identifier MUST be used: urn:ietf:params:xml:ns:cpxmlsec:algorithms:gostr34112012-512 The following sample includes GOST R 34.11-2012 algorithm with 512-bit hash code in the ds:DigestMethod element: The hash code MUST be represented in little-endian and base64-encoded [RFC4648], then it is included in the ds:DigestValue element (see Section 4.4.3.6 of [XMLDSIG]). 3.1.3. GOST R 34.11-94 Algorithm in DigestMethod Element The following identifier MUST be used for GOST R 34.11-94 algorithm to provide backward compatibility: urn:ietf:params:xml:ns:cpxmlsec:algorithms:gostr3411 The ds:DigestMethod element MAY include a descendant element named cpxmlsec:NamedParameters to specify hash algorithm parameters. Smirnov, et al. Expires 6 November 2022 [Page 6] Internet-Draft Using GOST Algorithms for XML Digital Si May 2022 If present, hash algorithm parameters MUST be included in the "URI" attribute of the cpxmlsec:NamedParameters element. Parameters are indicated by OIDs and MUST be formatted in accordance with [RFC3061]. OIDs defined in section 8.2 of [RFC4357] MAY be used. If the cpxmlsec:NamedParameters element is not included, id- GostR3411-94-CryptoProParamSet (see [RFC4357]) MUST be presumed. The cpxmlsec:NamedParameters element is described by the following XML schema definition: The following sample includes GOST R 34.11-94 algorithm in the ds:DigestMethod element: The hash code MUST be represented in little-endian and base64-encoded [RFC4648], then it is included in the ds:DigestValue element (see Section 4.4.3.6 of [XMLDSIG]). 3.2. Signature Algorithm in SignatureMethod Element 3.2.1. GOST R 34.10-2012 Algorithm with 256-bit Key in SignatureMethod Element For GOST R 34.10-2012 algorithm with 256-bit private key the following identifier MUST be used (without line break in the identifier): urn:ietf:params:xml:ns:cpxmlsec:algorithms:gostr34102012-gostr34112012- 256 The following sample includes GOST R 34.10-2012 algorithm with 256-bit private key in the ds:SignatureMethod element (without line break in the attribute value): Smirnov, et al. Expires 6 November 2022 [Page 7] Internet-Draft Using GOST Algorithms for XML Digital Si May 2022 Digital signature value MUST be represented in accordance with [R1323565.1.023-2018] and base64-encoded [RFC4648], then it is included in the ds:SignatureValue element (see Section 4.3 of [XMLDSIG]). 3.2.2. GOST R 34.10-2012 Algorithm with 512-bit Key in SignatureMethod Element For GOST R 34.10-2012 algorithm with 512-bit private key the following identifier MUST be used (without line break in the identifier): urn:ietf:params:xml:ns:cpxmlsec:algorithms:gostr34102012-gostr34112012- 512 The following sample includes GOST R 34.10-2012 algorithm with 512-bit private key in the ds:SignatureMethod element (without line break in the attribute value): Digital signature value MUST be represented in accordance with [R1323565.1.023-2018] and base64-encoded [RFC4648], then it is included in ds:SignatureValue element (see Section 4.3 of [XMLDSIG]). 3.2.3. GOST R 34.10-2001 Algorithm in SignatureMethod Element The following identifier MUST be used for GOST R 34.10-2001 algorithm to provide backward compatibility: urn:ietf:params:xml:ns:cpxmlsec:algorithms:gostr34102001-gostr3411 The following sample includes GOST R 34.10-2001 algorithm in the ds:SignatureMethod element: Smirnov, et al. Expires 6 November 2022 [Page 8] Internet-Draft Using GOST Algorithms for XML Digital Si May 2022 Digital signature value MUST be represented in accordance with [R1323565.1.023-2018] and base64-encoded [RFC4648], then it is included in the ds:SignatureValue element (see Section 4.3 of [XMLDSIG]). 3.3. HMAC Algorithm in SignatureMethod Element GOST R 34.11-2012 algorithm MAY be used in HMAC mechanism in accordance with section 6.3.1 [XMLDSIG] and section 4.1.1 [R501113-2016]. 3.3.1. GOST R 34.11-2012 algorithm with 256-bit key in SignatureMethod Element For GOST R 34.11-2012 algorithm with 256-bit hash code the following identifier MUST be used: urn:ietf:params:xml:ns:cpxmlsec:algorithms:hmac-gostr34112012-256 The following sample includes GOST R 34.11-2012 algorithm with 256-bit hash code in the ds:SignatureMethod element: The HMAC_GOSTR3411_2012_256 algorithm result (section 4.1.1 [R501113-2016]) MUST be represented in little-endian and base64-encoded [RFC4648], then it is included in the ds:SignatureValue element (see Section 4.3 of [XMLDSIG]). 3.3.2. GOST R 34.11-2012 algorithm with 512-bit key in SignatureMethod Element For GOST R 34.11-2012 algorithm with 512-bit hash code the following identifier MUST be used: Smirnov, et al. Expires 6 November 2022 [Page 9] Internet-Draft Using GOST Algorithms for XML Digital Si May 2022 urn:ietf:params:xml:ns:cpxmlsec:algorithms:hmac-gostr34112012-512 The following sample includes GOST R 34.11-2012 algorithm with 512-bit hash code in the ds:SignatureMethod element: The HMAC_GOSTR3411_2012_512 algorithm result (section 4.1.2 [R501113-2016]) MUST be represented in little-endian and base64-encoded [RFC4648], then it is included in the ds:SignatureValue element (see Section 4.3 of [XMLDSIG]). 4. Including GOST-based Key Material in XML Digital Signature The information about GOST-based key material or HMAC symmetric key MAY be included in XML digital signature in any way in accordance with [XMLDSIG]. In addition, this document defines new ways to enclose public keys of GOST algorithms: in descendants of the dsig11:DEREncodedKeyValue element (see Section 4.5.9 of [XMLDSIG]), in the ds:KeyValue element (see Section 4.2) and using the "Type" atrribute of the ds:RetrievalMethod element (see Section 4.3). 4.1. Public Key in DEREncodedKeyValue Element The dsig11:DEREncodedKeyValue element is a descendant of the ds:KeyInfo (see Section 4.5 of [XMLDSIG]) element. To include the public key and its parameters into the dsig11:DEREncodedKeyValue element, the SubjectPublicKeyInfo structure MUST be used. This structure MUST be encoded in accordance with [R1323565.1.023-2018]. Then this key material MUST be represented in accordance with Section 4.5.9 of [XMLDSIG]. 4.2. Public Key in KeyValue Element The ds:KeyValue element is a descendant of the ds:KeyInfo (see Section 4.5 of [XMLDSIG]) element. This element contains the public key and its parameters. For GOST algorithms one of the following extra descendants MUST be included in the ds:KeyValue element: * cpxmlsec:GOSTR34102012-256-KeyValue element; Smirnov, et al. Expires 6 November 2022 [Page 10] Internet-Draft Using GOST Algorithms for XML Digital Si May 2022 * cpxmlsec:GOSTR34102012-512-KeyValue element; * cpxmlsec:GOSTR34102001KeyValue element. The extended ds:KeyValue element is described by the following XML schema definition: Each of cpxmlsec:GOSTR34102012-256-KeyValue, cpxmlsec:GOSTR34102012-512-KeyValue and cpxmlsec:GOSTR34102001KeyValue elements have cpxmlsec:GOSTKeyValueType type (see schema definition below) and MUST contain the following descendants: * cpxmlsec:NamedCurve element - contains an elliptic curve identifier; * cpxmlsec:PublicKey element - contains a public key. Each of cpxmlsec:NamedCurve and cpxmlsec:PublicKey elements belong to cpxmlsec namespace. The cpxmlsec:NamedCurve element has dsig11:NamedCurveType type. The cpxmlsec:PublicKey element has dsig11:ECPointType type. Both types belong to DSIG11 schema [XMLDSIG]. Each of cpxmlsec:GOSTR34102012-256-KeyValue, cpxmlsec:GOSTR34102012-512-KeyValue and cpxmlsec:GOSTR34102001KeyValue elements are described by the following XML schema definition: Smirnov, et al. Expires 6 November 2022 [Page 11] Internet-Draft Using GOST Algorithms for XML Digital Si May 2022 Each of cpxmlsec:GOSTR34102012-256-KeyValue, cpxmlsec:GOSTR34102012-512-KeyValue and cpxmlsec:GOSTR34102001KeyValue elements MUST be represented in accordance with Section 4.2.1-Section 4.2.3. 4.2.1. GOST R 34.10-2012 256-bit Public Key in GOSTR34102012-256-KeyValue Element The elliptic curve identifier (public key parameters) MUST be included in the "URI" attribute of the cpxmlsec:NamedCurve element (see Section 4.2). In case of public key parameters described by OIDs they SHOULD be represented in accordance with [RFC3061]. OID identifiers for GOST algorithms are defined in [R1323565.1.023-2018]. The public key MUST be included in the cpxmlsec:GOSTR34102012-256-KeyValue element. It MUST be represented in the same way as subjectPublicKey field of SubjectPublicKeyInfo structure [R1323565.1.023-2018] without enclosing in OCTET STRING and DER encoding. This string MUST be base64-encoded [RFC4648] and included in the cpxmlsec:GOSTR34102012-256-KeyValue element similar to the ds:RSAKeyValue (see [XMLDSIG]). The XML schema of cpxmlsec:GOSTR34102012-256-KeyValue and cpxmlsec:PublicKey elements is defined in Section 4.2. The following sample includes key material in the cpxmlsec:GOSTR34102012-256-KeyValue element: Smirnov, et al. Expires 6 November 2022 [Page 12] Internet-Draft Using GOST Algorithms for XML Digital Si May 2022 4.2.2. GOST R 34.10-2012 512-bit Public Key in GOSTR34102012-512-KeyValue Element The elliptic curve identifier (public key parameters) MUST be included in the "URI" attribute of the cpxmlsec:NamedCurve element (see Section 4.2). In case of public key parameters described by OIDs they SHOULD be represented in accordance with [RFC3061]. OID identifiers for GOST algorithms are defined in [R1323565.1.023-2018]. The public key MUST be included in cpxmlsec:GOSTR34102012-512-KeyValue element. It MUST be represented in the same way as subjectPublicKey field of SubjectPublicKeyInfo structure [R1323565.1.023-2018] without enclosing in OCTET STRING and DER encoding. This string MUST be base64-encoded [RFC4648] and included in the cpxmlsec:GOSTR34102012-512-KeyValue element similar to the ds:RSAKeyValue (see [XMLDSIG]). The XML schema of cpxmlsec:GOSTR34102012-512-KeyValue and cpxmlsec:PublicKey elements is defined in Section 4.2. The following sample includes key material in the cpxmlsec:GOSTR34102012-512-KeyValue element: Smirnov, et al. Expires 6 November 2022 [Page 13] Internet-Draft Using GOST Algorithms for XML Digital Si May 2022 4.2.3. GOST R 34.10-2001 Public Key in GOSTR34102001KeyValue Element The elliptic curve identifier (public key parameters) MUST be included in the "URI" attribute of the cpxmlsec:NamedCurve element (see Section 4.2). In case of public key parameters described by OIDs they SHOULD be represented in accordance with [RFC3061]. OID identifiers for GOST algorithms are defined in section 8.4 of [RFC4357]. The public key MUST be included in cpxmlsec:GOSTR34102001KeyValue element. It MUST be represented in the same way as subjectPublicKey field of SubjectPublicKeyInfo structure [R1323565.1.023-2018] without enclosing in OCTET STRING and DER encoding. This string MUST be base64-encoded [RFC4648] and included in the cpxmlsec:GOSTR34102001KeyValue similar to the ds:RSAKeyValue (see [XMLDSIG]). The XML schema of cpxmlsec:GOSTR34102001KeyValue and cpxmlsec:PublicKey elements is defined in Section 4.2. The following sample includes key material in the cpxmlsec:GOSTR34102001KeyValue element: 4.3. Public Key Reference in RetrievalMethod Element The GOST public key MAY be referenced in the ds:RetrievalMethod element. In this case the public key reference MUST be included in the "URI" attribute. If the "Type" attribute is present one of the following identifiers MUST be used. For GOST R 34.10-2012 algorithm with 256-bit private key: urn:ietf:params:xml:ns:cpxmlsec:types:gostr34102012-256-keyvalue For GOST R 34.10-2012 algorithm with 512-bit private key: Smirnov, et al. Expires 6 November 2022 [Page 14] Internet-Draft Using GOST Algorithms for XML Digital Si May 2022 urn:ietf:params:xml:ns:cpxmlsec:types:gostr34102012-512-keyvalue For GOST R 34.10-2001 algorithm: urn:ietf:params:xml:ns:cpxmlsec:types:gostr34102001-keyvalue 5. IANA Considerations 5.1. XML Sub-namespace Registration for urn:ietf:params:xml:ns:cpxmlsec This section registers a new XML sub-namespace, "urn:ietf:params:xml:ns:cpxmlsec" (see Section 2) per the guidelines in [RFC3688]: URI: urn:ietf:params:xml:ns:cpxmlsec Registrant Contact: Pavel Smirnov (spv@cryptopro.ru), Maria Paramonova (mparamonova@cryptopro.ru). XML: None. Namespace URIs do not represent an XML specification. 5.2. XML Sub-Namespace Registration for urn:ietf:params:xml:ns:cpxmlsec:algorithms:gostr34112012-256 This section registers a new XML sub-namespace identifier, "urn:ietf:params:xml:ns:cpxmlsec:algorithms:gostr34112012-256" (see Section 3.1.1) per the guidelines in [RFC3688]: URI: urn:ietf:params:xml:ns:cpxmlsec:algorithms:gostr34112012-256 Registrant Contact: Pavel Smirnov (spv@cryptopro.ru), Maria Paramonova (mparamonova@cryptopro.ru). XML: Smirnov, et al. Expires 6 November 2022 [Page 15] Internet-Draft Using GOST Algorithms for XML Digital Si May 2022 GOST R 34.11-2012 algorithm with 256-bit hash code in DigestMethod element

Namespace identifier for GOST R 34.11-2012 algorithm with 256-bit hash code in DigestMethod element

urn:ietf:params:xml:ns:cpxmlsec:algorithms:gostr34112012-256

See Section 4.1.1 in draft-smirnov-xmldsig-05.

5.3. XML Sub-Namespace Registration for urn:ietf:params:xml:ns:cpxmlsec:algorithms:gostr34112012-512 This section registers a new XML sub-namespace identifier, "urn:ietf:params:xml:ns:cpxmlsec:algorithms:gostr34112012-512" (see Section 3.1.2) per the guidelines in [RFC3688]: URI: urn:ietf:params:xml:ns:cpxmlsec:algorithms:gostr34112012-512 Registrant Contact: Pavel Smirnov (spv@cryptopro.ru), Maria Paramonova (mparamonova@cryptopro.ru). XML: Smirnov, et al. Expires 6 November 2022 [Page 16] Internet-Draft Using GOST Algorithms for XML Digital Si May 2022 GOST R 34.11-2012 algorithm with 512-bit hash code in DigestMethod element

Namespace identifier for GOST R 34.11-2012 algorithm with 512-bit hash code in DigestMethod element

urn:ietf:params:xml:ns:cpxmlsec:algorithms:gostr34112012-512

See Section 4.1.2 in draft-smirnov-xmldsig-05.

5.4. XML Sub-Namespace Registration for urn:ietf:params:xml:ns:cpxmlsec:algorithms:gostr3411 This section registers a new XML sub-namespace identifier, "urn:ietf:params:xml:ns:cpxmlsec:algorithms:gostr3411" (see Section 3.1.3) per the guidelines in [RFC3688]: URI: urn:ietf:params:xml:ns:cpxmlsec:algorithms:gostr3411 Registrant Contact: Pavel Smirnov (spv@cryptopro.ru), Maria Paramonova (mparamonova@cryptopro.ru). XML: Smirnov, et al. Expires 6 November 2022 [Page 17] Internet-Draft Using GOST Algorithms for XML Digital Si May 2022 GOST R 34.11-94 algorithm in DigestMethod element

Namespace identifier for GOST R 34.11-94 algorithm in DigestMethod element

urn:ietf:params:xml:ns:cpxmlsec:algorithms:gostr3411

See Section 4.1.3 in draft-smirnov-xmldsig-05.

5.5. XML Sub-Namespace Registration for urn:ietf:params:xml:ns:cpxmlsec :algorithms:gostr34102012-gostr34112012-256 This section registers a new XML sub-namespace identifier, "urn:ietf: params:xml:ns:cpxmlsec:algorithms:gostr34102012-gostr34112012-256" (see Section 3.2.1) per the guidelines in [RFC3688]: URI: urn:ietf:params:xml:ns:cpxmlsec:algorithms:gostr34102012-gostr34 112012-256 Registrant Contact: Pavel Smirnov (spv@cryptopro.ru), Maria Paramonova (mparamonova@cryptopro.ru). XML: Smirnov, et al. Expires 6 November 2022 [Page 18] Internet-Draft Using GOST Algorithms for XML Digital Si May 2022 GOST R 34.10-2012 algorithm with 256-bit key in SignatureMethod element

Namespace identifier for GOST R 34.10-2012 algorithm with 256-bit key in SignatureMethod element

urn:ietf:params:xml:ns:cpxmlsec:algorithms:gostr34102012-gostr34112012-256

See Section 4.2.1 in draft-smirnov-xmldsig-05.

5.6. XML Sub-Namespace Registration for urn:ietf:params:xml:ns:cpxmlsec :algorithms:gostr34102012-gostr34112012-512 This section registers a new XML sub-namespace identifier, "urn:ietf: params:xml:ns:cpxmlsec:algorithms:gostr34102012-gostr34112012-512" (see Section 3.2.2) per the guidelines in [RFC3688]: URI: urn:ietf:params:xml:ns:cpxmlsec:algorithms:gostr34102012-gostr34 112012-512 Registrant Contact: Pavel Smirnov (spv@cryptopro.ru), Maria Paramonova (mparamonova@cryptopro.ru). XML: Smirnov, et al. Expires 6 November 2022 [Page 19] Internet-Draft Using GOST Algorithms for XML Digital Si May 2022 GOST R 34.10-2012 algorithm with 512-bit key in SignatureMethod element

Namespace identifier for GOST R 34.10-2012 algorithm with 512-bit key in SignatureMethod element

urn:ietf:params:xml:ns:cpxmlsec:algorithms:gostr34102012-gostr34112012-512

See Section 4.2.2 in draft-smirnov-xmldsig-05.

5.7. XML Sub-Namespace Registration for urn:ietf:params:xml:ns:cpxmlsec:algorithms:gostr34102001-gostr3411 This section registers a new XML sub-namespace identifier, "urn:ietf:params:xml:ns:cpxmlsec:algorithms:gostr34102001-gostr3411" (see Section 3.2.3) per the guidelines in [RFC3688]: URI: urn:ietf:params:xml:ns:cpxmlsec:algorithms:gostr34102001-gostr3411 Registrant Contact: Pavel Smirnov (spv@cryptopro.ru), Maria Paramonova (mparamonova@cryptopro.ru). XML: Smirnov, et al. Expires 6 November 2022 [Page 20] Internet-Draft Using GOST Algorithms for XML Digital Si May 2022 GOST R 34.10-2001 algorithm in SignatureMethod element

Namespace identifier for GOST R 34.10-2001 algorithm in SignatureMethod element

urn:ietf:params:xml:ns:cpxmlsec:algorithms:gostr34102001-gostr3411

See Section 4.2.3 in draft-smirnov-xmldsig-05.

5.8. XML Sub-Namespace Registration for urn:ietf:params:xml:ns:cpxmlsec:algorithms:hmac-gostr34112012-256 This section registers a new XML sub-namespace identifier, "urn:ietf:params:xml:ns:cpxmlsec:algorithms:hmac-gostr34112012-256" (see Section 3.3.1) per the guidelines in [RFC3688]: URI: urn:ietf:params:xml:ns:cpxmlsec:algorithms:hmac- gostr34112012-256 Registrant Contact: Pavel Smirnov (spv@cryptopro.ru), Maria Paramonova (mparamonova@cryptopro.ru). XML: Smirnov, et al. Expires 6 November 2022 [Page 21] Internet-Draft Using GOST Algorithms for XML Digital Si May 2022 GOST R 34.11-2012 algorithm with 256-bit key in SignatureMethod element

Namespace identifier for GOST R 34.11-2012 algorithm with 256-bit key in SignatureMethod element

urn:ietf:params:xml:ns:cpxmlsec:algorithms:hmac-gostr34112012-256

See Section 4.3.1 in draft-smirnov-xmldsig-05.

5.9. XML Sub-Namespace Registration for urn:ietf:params:xml:ns:cpxmlsec:algorithms:hmac-gostr34112012-512 This section registers a new XML sub-namespace identifier, "urn:ietf:params:xml:ns:cpxmlsec:algorithms:hmac-gostr34112012-512" (see Section 3.3.2) per the guidelines in [RFC3688]: URI: urn:ietf:params:xml:ns:cpxmlsec:algorithms:hmac- gostr34112012-512 Registrant Contact: Pavel Smirnov (spv@cryptopro.ru), Maria Paramonova (mparamonova@cryptopro.ru). XML: Smirnov, et al. Expires 6 November 2022 [Page 22] Internet-Draft Using GOST Algorithms for XML Digital Si May 2022 GOST R 34.11-2012 algorithm with 512-bit key in SignatureMethod element

Namespace identifier for GOST R 34.11-2012 algorithm with 512-bit key in SignatureMethod element

urn:ietf:params:xml:ns:cpxmlsec:algorithms:hmac-gostr34112012-512

See Section 4.3.2 in draft-smirnov-xmldsig-05.

5.10. XML Sub-Namespace Registration for urn:ietf:params:xml:ns:cpxmlsec:types:gostr34102012-256-keyvalue This section registers a new XML sub-namespace identifier, "urn:ietf:params:xml:ns:cpxmlsec:types:gostr34102012-256-keyvalue" (see Section 4.3) per the guidelines in [RFC3688]: URI: urn:ietf:params:xml:ns:cpxmlsec:types:gostr34102012-256-keyvalue Registrant Contact: Pavel Smirnov (spv@cryptopro.ru), Maria Paramonova (mparamonova@cryptopro.ru). XML: Smirnov, et al. Expires 6 November 2022 [Page 23] Internet-Draft Using GOST Algorithms for XML Digital Si May 2022 GOST R 34.10-2012 256-bit public key at external location

Namespace identifier for GOST R 34.10-2012 256-bit public key at external location

urn:ietf:params:xml:ns:cpxmlsec:types:gostr34102012-256-keyvalue

See Section 5.3 in draft-smirnov-xmldsig-05.

5.11. XML Sub-Namespace Registration for urn:ietf:params:xml:ns:cpxmlsec:types:gostr34102012-512-keyvalue This section registers a new XML sub-namespace identifier, "urn:ietf:params:xml:ns:cpxmlsec:types:gostr34102012-512-keyvalue" (see Section 4.3) per the guidelines in [RFC3688]: URI: urn:ietf:params:xml:ns:cpxmlsec:types:gostr34102012-512-keyvalue Registrant Contact: Pavel Smirnov (spv@cryptopro.ru), Maria Paramonova (mparamonova@cryptopro.ru). XML: Smirnov, et al. Expires 6 November 2022 [Page 24] Internet-Draft Using GOST Algorithms for XML Digital Si May 2022 GOST R 34.10-2012 512-bit public key at external location

Namespace identifier for GOST R 34.10-2012 512-bit public key at external location

urn:ietf:params:xml:ns:cpxmlsec:types:gostr34102012-512-keyvalue

See Section 5.3 in draft-smirnov-xmldsig-05.

5.12. XML Sub-Namespace Registration for urn:ietf:params:xml:ns:cpxmlsec:types:gostr34102001-keyvalue This section registers a new XML sub-namespace identifier, "urn:ietf:params:xml:ns:cpxmlsec:types:gostr34102001-keyvalue" (see Section 4.3) per the guidelines in [RFC3688]: URI: urn:ietf:params:xml:ns:cpxmlsec:types:gostr34102001-keyvalue Registrant Contact: Pavel Smirnov (spv@cryptopro.ru), Maria Paramonova (mparamonova@cryptopro.ru). XML: Smirnov, et al. Expires 6 November 2022 [Page 25] Internet-Draft Using GOST Algorithms for XML Digital Si May 2022 GOST R 34.10-2001 public key at external location

Namespace identifier for GOST R 34.10-2001 public key at external location

urn:ietf:params:xml:ns:cpxmlsec:types:gostr34102001-keyvalue

See Section 5.3 in draft-smirnov-xmldsig-05.

5.13. XML Schema Registration This section registers an XML schema per the guidelines in [RFC3688]: URI: urn:ietf:params:xml:schema:cpxmlsec Registrant Contact: Pavel Smirnov (spv@cryptopro.ru), Maria Paramonova (mparamonova@cryptopro.ru). XML: The XML schema can be found in Appendix A. 6. References 6.1. Normative References [RFC2104] Krawczyk, H., Bellare, M., and R. Canetti, "HMAC: Keyed- Hashing for Message Authentication", RFC 2104, DOI 10.17487/RFC2104, February 1997, . Smirnov, et al. Expires 6 November 2022 [Page 26] Internet-Draft Using GOST Algorithms for XML Digital Si May 2022 [RFC2119] Bradner, S., "Key words for use in RFCs to Indicate Requirement Levels", BCP 14, RFC 2119, DOI 10.17487/RFC2119, March 1997, . [RFC3061] Mealling, M., "A URN Namespace of Object Identifiers", RFC 3061, DOI 10.17487/RFC3061, February 2001, . [RFC3688] Mealling, M., "The IETF XML Registry", BCP 81, RFC 3688, DOI 10.17487/RFC3688, January 2004, . [RFC4357] 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, DOI 10.17487/RFC4357, January 2006, . [RFC4491] Leontiev, S., Ed. and D. Shefanovski, 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, DOI 10.17487/RFC4491, May 2006, . [RFC4648] Josefsson, S., "The Base16, Base32, and Base64 Data Encodings", RFC 4648, DOI 10.17487/RFC4648, October 2006, . [RFC5280] Cooper, D., Santesson, S., Farrell, S., Boeyen, S., Housley, R., and W. Polk, "Internet X.509 Public Key Infrastructure Certificate and Certificate Revocation List (CRL) Profile", RFC 5280, DOI 10.17487/RFC5280, May 2008, . [RFC6986] Dolmatov, V., Ed. and A. Degtyarev, "GOST R 34.11-2012: Hash Function", RFC 6986, DOI 10.17487/RFC6986, August 2013, . [RFC7091] Dolmatov, V., Ed. and A. Degtyarev, "GOST R 34.10-2012: Digital Signature Algorithm", RFC 7091, DOI 10.17487/RFC7091, December 2013, . [RFC7836] Smyshlyaev, S., Ed., Alekseev, E., Oshkin, I., Popov, V., Leontiev, S., Podobaev, V., and D. Belyavsky, "Guidelines on the Cryptographic Algorithms to Accompany the Usage of Smirnov, et al. Expires 6 November 2022 [Page 27] Internet-Draft Using GOST Algorithms for XML Digital Si May 2022 Standards GOST R 34.10-2012 and GOST R 34.11-2012", RFC 7836, DOI 10.17487/RFC7836, March 2016, . 6.2. Informative References [GOST3410-2012] Federal Agency on Technical Regulating and Metrology, "Information technology. Cryptographic data security. Signature and verification processes of [electronic] digital signature", GOST R Version 1.1, 2012. [GOST3411-2012] Federal Agency on Technical Regulating and Metrology, "Information technology. Cryptographic Data Security. Hashing function", GOST R 34.11-2012, 2012. [R1323565.1.023-2018] Federal Agency on Technical Regulating and Metrology, "Information technology. Cryptographic information security. Usage of GOST R 34.10-2012 and GOST R 34.11-2012 algorithms in certificate, CRL and PKCS#10 certificate request in X.509 public key infrastructure", R 1323565.1.023-2018, 2019. [R1323565.1.033-2020] Technical Committee 26 "Cryptography and Security Mechanisms", "Using Russian algorithms of digital signature with XML-based protocols and messages", TC 26 Recommendation , 2020, . [R501113-2016] Federal Agency on Technical Regulating and Metrology, "Information technology. Cryptographic Data Security. Guidelines on the Cryptographic Algorithms, Accompanying the Usage of Standards GOST R 34.10-2012 and GOST R 34.11-2012", R 50.1.113-2016, 2016. [XMLDSIG] The World Wide Web Consortium (W3C), "XML Signature Syntax and Processing", W3C Recommendation Version 1.1, 2013, . Smirnov, et al. Expires 6 November 2022 [Page 28] Internet-Draft Using GOST Algorithms for XML Digital Si May 2022 [XMLSCHEMA-1] The World Wide Web Consortium (W3C), "XML Schema Part 1: Structures Second Edition", W3C Recommendation , 2004, . [XMLSCHEMA-2] The World Wide Web Consortium (W3C), "XML Schema Part 2: Datatypes Second Edition", W3C Recommendation , 2004, . Appendix A. CPXMLSEC XML Schema Smirnov, et al. Expires 6 November 2022 [Page 29] Internet-Draft Using GOST Algorithms for XML Digital Si May 2022 ]> Smirnov, et al. Expires 6 November 2022 [Page 30] Internet-Draft Using GOST Algorithms for XML Digital Si May 2022 Appendix B. Test Examples Note: Line breaks in the coordinates, identifiers, XML elements or in the attribute values MUST be ignored. B.1. Signed XML document with GOST R 34.10-2012 algorithm and 256-bit hash code in DigestMethod element The following sample was constructed using the X.509 certificate from Appendix A of [R1323565.1.023-2018]. X-coordinate of public key: 0x971566CEDA436EE7678F7E07E84EBB7217406C0B4747AA8FD2AB1453C3D0DFBA Y-coordinate of public key: 0xAD58736965949F8E59830F8DE20FC6C0D177F6AB599874F1E2E24FF71F9CE643 Corresponding private key (d): 0xBFCF1D623E5CDD3032A7C6EABB4A923C46E43D640FFEAAF2C3ED39A8FA399924 K value: 0x5782C53F110C596F9155D35EBD25A06A89C50391850A8FEFE33B0E270318857C H-bar value: 0x054D1DABB161D63424F8DABB2800708B00F78DA7582699E8F2F0A521C7CE8144 Signed XML document: Smirnov, et al. Expires 6 November 2022 [Page 31] Internet-Draft Using GOST Algorithms for XML Digital Si May 2022 Data 9QLsxPPo7LlX6IXqwzjcNDmbFuCCGivQ1s61hcPuITM= jcQJhWtWbTCV7bjFky5vGXXUFigc74FXRi79lZnFHK7pMjpeiN2H+3xyQ4O//n zs1Ln/oqwzvu9zpaH3Q0BPaw== ut/Qw1MUq9KPqkdHC2xAF3K7TugHfo9n525D2s5mFZdD5pwf90/i4v F0mFmr9nfRwMYP4o0Pg1mOn5RlaXNYrQ== Smirnov, et al. Expires 6 November 2022 [Page 32] Internet-Draft Using GOST Algorithms for XML Digital Si May 2022 Base64-encoded signed XML document: 77u/ PD94bWwgdmVyc2lvbj0iMS4wIiBlbmNvZGluZz0idXRmLTgiPz48cm9vdD4NCiAgIDxE YXRhVG9TaWduIElkPSJUb1NpZ24iPkRhdGE8L0RhdGFUb1NpZ24+DQogICA8U2lnbmF0d XJl IHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwLzA5L3htbGRzaWcjIj4NCiAgI CAgIDxT aWduZWRJbmZvPg0KICAgICAgICAgPENhbm9uaWNhbGl6YXRpb25NZXRob2QgQ Wxnb3JpdGht PSJodHRwOi8vd3d3LnczLm9yZy9UUi8yMDAxL1JFQy14bWwtYzE0bi0yM DAxMDMxNSIgLz4N CiAgICAgICAgIDxTaWduYXR1cmVNZXRob2QgQWxnb3JpdGhtPSJ1c m46aWV0ZjpwYXJhbXM6 eG1sOm5zOmNweG1sc2VjOmFsZ29yaXRobXM6Z29zdHIzNDEwM jAxMi1nb3N0cjM0MTEyMDEy LTI1NiIgLz4NCiAgICAgICAgIDxSZWZlcmVuY2UgVVJJP SIjVG9TaWduIj4NCiAgICAgICAg ICAgIDxUcmFuc2Zvcm1zPg0KICAgICAgICAgICAgI CAgPFRyYW5zZm9ybSBBbGdvcml0aG09 Imh0dHA6Ly93d3cudzMub3JnL1RSLzIwMDEvU kVDLXhtbC1jMTRuLTIwMDEwMzE1IiAvPg0K ICAgICAgICAgICAgPC9UcmFuc2Zvcm1zP g0KICAgICAgICAgICAgPERpZ2VzdE1ldGhvZCBB bGdvcml0aG09InVybjppZXRmOnBhc mFtczp4bWw6bnM6Y3B4bWxzZWM6YWxnb3JpdGhtczpn b3N0cjM0MTEyMDEyLTI1NiIgL z4NCiAgICAgICAgICAgIDxEaWdlc3RWYWx1ZT45UUxzeFBQ bzdMbFg2SVhxd3pqY05Eb WJGdUNDR2l2UTFzNjFoY1B1SVRNPTwvRGlnZXN0VmFsdWU+DQog ICAgICAgICA8L1JlZ mVyZW5jZT4NCiAgICAgIDwvU2lnbmVkSW5mbz4NCiAgICAgIDxTaWdu YXR1cmVWYWx1Z T5qY1FKaFd0V2JUQ1Y3YmpGa3k1dkdYWFVGaWdjNzRGWFJpNzlsWm5GSEs3 cE1qcGVpT jJIKzN4eVE0Ty8vbnpzMUxuL29xd3p2dTl6cGFIM1EwQlBhdz09PC9TaWduYXR1 cmVWY Wx1ZT4NCiAgICAgIDxLZXlJbmZvPg0KICAgICAgICAgPEtleVZhbHVlPg0KICAgICAg I CAgICAgPEdPU1RSMzQxMDIwMTItMjU2LUtleVZhbHVlIHhtbG5zPSJ1cm46aWV0ZjpwYX Jh bXM6eG1sOm5zOmNweG1sc2VjIj4NCiAgICAgICAgICAgICAgIDxOYW1lZEN1cnZlIF VSST0i dXJuOm9pZDoxLjIuNjQzLjIuMi4zNi4wIiAvPg0KICAgICAgICAgICAgICAgPF B1YmxpY0tl eT51dC9RdzFNVXE5S1Bxa2RIQzJ4QUYzSzdUdWdIZm85bjUyNUQyczVtRl pkRDVwd2Y5MC9p NHZGMG1GbXI5bmZSd01ZUDRvMFBnMW1PbjVSbGFYTllyUT09PC9QdW JsaWNLZXk+DQogICAg ICAgICAgICA8L0dPU1RSMzQxMDIwMTItMjU2LUtleVZhbHVlPg 0KICAgICAgICAgPC9LZXlW YWx1ZT4NCiAgICAgIDwvS2V5SW5mbz4NCiAgIDwvU2lnbmF0dXJlPg0KPC9yb290Pg== B.2. Signed XML document with GOST R 34.10-2012 algorithm and 512-bit hash code in DigestMethod element The following sample was constructed using the X.509 certificate from Appendix A of [R1323565.1.023-2018]. X-coordinate of public key: 0x07134627CE7FC6770953ABA4714B38AF8DE764B8870A502C2F4CC2D05541459A18DA3B 9D4EBC09BC06CB2EA1856A03747561CF04C34382111539230A550F1913 Y-coordinate of public key: Smirnov, et al. Expires 6 November 2022 [Page 33] Internet-Draft Using GOST Algorithms for XML Digital Si May 2022 0x7E08A434CB2FA300F8974E3FF69A4BCDF36B6308E1D7A56144693A35E11CBD14D50291 6E680E35FE1E6ABBA85BD4DAE7065308B16B1CCABFE3D91CE0655B0FFD Corresponding private key (d): 0x3FC01CDCD4EC5F972EB482774C41E66DB7F380528DFE9E67992BA05AEE462435757530 E641077CE587B976C8EEB48C48FD33FD175F0C7DE6A44E014E6BCB074B K value: 0x72ABB44536656BF1618CE10BF7EADD40582304A51EE4E2A25A0A32CB0E773ABB23B7D8 FDD8FA5EEE91B4AE452F2272C86E1E2221215D405F51B5D5015616E1F6 H-bar value: 0x33DEF8422879AA68482339BC65E5DCA9A5D77E80C5C0371DB13D3B88F4CCA8A89ED3CE 85849231DD61B35E4B47A3722317663859A2BE088C1BB6EEC87410DAF2 Signed XML document: Data wiOFD9D7zKHNlo58t/9tUtCJA5ZO9vmDhMlt3HIkyXZvQxIp5PE+txwsI AVfUIOULvGTFxAZlwuHTB+qD5s54g== dn+oWg6n3wJ20kBmO1GvURc4SuZ3h3nKXYWy4uHdmeS2nlTlNWFKca4fTBlc+fp nCS8IEVNFX25Ndh4UXJLLNl2/L0wtancFiA+xRYzFgzUGW+pWIfyfvBdsSspbwe ZyJUWajqN3lDRZDchycEApNlqDpTtes8BpNrXSh+Cpg+c= ExkPVQojORURgkPDBM9hdXQDaoWhLssGvAm8Tp072hiaRUFV0MJMLy xQCoe4ZOeNrzhLcaSrUwl3xn/OJ0YTB/0PW2XgHNnjv8oca7EIUwbn 2tRbqLtqHv41DmhukQLVFL0c4TU6aURhpdfhCGNr881LmvY/Tpf4AK MvyzSkCH4= Base64-encoded signed XML document: 77u/ PD94bWwgdmVyc2lvbj0iMS4wIiBlbmNvZGluZz0idXRmLTgiPz48cm9vdD4NCiAgIDxE YXRhVG9TaWduIElkPSJUb1NpZ24iPkRhdGE8L0RhdGFUb1NpZ24+DQogICA8U2lnbmF0d XJl IHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwLzA5L3htbGRzaWcjIj4NCiAgI CAgIDxT aWduZWRJbmZvPg0KICAgICAgICAgPENhbm9uaWNhbGl6YXRpb25NZXRob2QgQ Wxnb3JpdGht PSJodHRwOi8vd3d3LnczLm9yZy9UUi8yMDAxL1JFQy14bWwtYzE0bi0yM DAxMDMxNSIgLz4N CiAgICAgICAgIDxTaWduYXR1cmVNZXRob2QgQWxnb3JpdGhtPSJ1c m46aWV0ZjpwYXJhbXM6 eG1sOm5zOmNweG1sc2VjOmFsZ29yaXRobXM6Z29zdHIzNDEwM jAxMi1nb3N0cjM0MTEyMDEy LTUxMiIgLz4NCiAgICAgICAgIDxSZWZlcmVuY2UgVVJJP SIjVG9TaWduIj4NCiAgICAgICAg ICAgIDxUcmFuc2Zvcm1zPg0KICAgICAgICAgICAgI CAgPFRyYW5zZm9ybSBBbGdvcml0aG09 Imh0dHA6Ly93d3cudzMub3JnL1RSLzIwMDEvU kVDLXhtbC1jMTRuLTIwMDEwMzE1IiAvPg0K ICAgICAgICAgICAgPC9UcmFuc2Zvcm1zP g0KICAgICAgICAgICAgPERpZ2VzdE1ldGhvZCBB bGdvcml0aG09InVybjppZXRmOnBhc mFtczp4bWw6bnM6Y3B4bWxzZWM6YWxnb3JpdGhtczpn b3N0cjM0MTEyMDEyLTUxMiIgL Smirnov, et al. Expires 6 November 2022 [Page 35] Internet-Draft Using GOST Algorithms for XML Digital Si May 2022 z4NCiAgICAgICAgICAgIDxEaWdlc3RWYWx1ZT53aU9GRDlE N3pLSE5sbzU4dC85dFV0Q 0pBNVpPOXZtRGhNbHQzSElreVhadlF4SXA1UEUrdHh3c0lBVmZV SU9VTHZHVEZ4QVpsd 3VIVEIrcUQ1czU0Zz09PC9EaWdlc3RWYWx1ZT4NCiAgICAgICAgIDwv UmVmZXJlbmNlP g0KICAgICAgPC9TaWduZWRJbmZvPg0KICAgICAgPFNpZ25hdHVyZVZhbHVl PmRuK29XZ zZuM3dKMjBrQm1PMUd2VVJjNFN1WjNoM25LWFlXeTR1SGRtZVMybmxUbE5XRktj YTRmV EJsYytmcG5DUzhJRVZORlgyNU5kaDRVWEpMTE5sMi9MMHd0YW5jRmlBK3hSWXpGZ3pV R 1crcFdJZnlmdkJkc1NzcGJ3ZVp5SlVXYWpxTjNsRFJaRGNoeWNFQXBObHFEcFR0ZXM4Qn BO clhTaCtDcGcrYz08L1NpZ25hdHVyZVZhbHVlPg0KICAgICAgPEtleUluZm8+DQogIC AgICAg ICA8S2V5VmFsdWU+DQogICAgICAgICAgICA8R09TVFIzNDEwMjAxMi01MTItS2 V5VmFsdWUg eG1sbnM9InVybjppZXRmOnBhcmFtczp4bWw6bnM6Y3B4bWxzZWMiPg0KIC AgICAgICAgICAg ICAgPE5hbWVkQ3VydmUgVVJJPSJ1cm46b2lkOjEuMi42NDMuNy4xLj IuMS4yLjIiIC8+DQog ICAgICAgICAgICAgICA8UHVibGljS2V5PkV4a1BWUW9qT1JVUm drUERCTTloZFhRRGFvV2hM c3NHdkFtOFRwMDcyaGlhUlVGVjBNSk1MeXhRQ29lNFpPZU 5yemhMY2FTclV3bDN4bi9PSjBZ VEIvMFBXMlhnSE5uanY4b2NhN0VJVXdibjJ0UmJxTH RxSHY0MURtaHVrUUxWRkwwYzRUVTZh VVJocGRmaENHTnI4ODFMbXZZL1RwZjRBS012eX pTa0NIND08L1B1YmxpY0tleT4NCiAgICAg ICAgICAgIDwvR09TVFIzNDEwMjAxMi01MT ItS2V5VmFsdWU+DQogICAgICAgICA8L0tleVZh bHVlPg0KICAgICAgPC9LZXlJbmZvPg0KICAgPC9TaWduYXR1cmU+DQo8L3Jvb3Q+ B.3. Signed XML document with GOST R 34.10-2001 algorithm in SignatureMethod element The following sample was constructed using the X.509 certificate from section 4.2 of [RFC4491]. X-coordinate of public key: 0x577E324FE70F2B6DF45C437A0305E5FD2C89318C13CD0875401A026075689584 Y-coordinate of public key: 0x601AEACABC660FDFB0CBC7567EBBA6EA8DE40FAE857C9AD0038895B916CCEB8F Corresponding private key (d): 0x0B293BE050D0082BDAE785631A6BAB68F35B42786D6DDA56AFAF169891040F77 K value: 0x5782C53F110C596F9155D35EBD25A06A89C50391850A8FEFE33B0E270318857C Smirnov, et al. Expires 6 November 2022 [Page 36] Internet-Draft Using GOST Algorithms for XML Digital Si May 2022 H-bar value: 0xEF3E03620C2B0E87E43F503A839AB7868071EA28CA38AABD915D56A5F74400F4 Signed XML document: Data FVQbzF2djfNNJO3JG0OLfSODlZkibTcUmF2DS4nnuPY= n2UHtdu25fPzJNYyojbNTq52V1D3UBVQqI5xNhdYopDpMjpeiN2H+3xyQ4O//nz s1Ln/oqwzvu9zpaH3Q0BPaw== hJVodWACGkB1CM0TjDGJLP3lBQN6Q1z0bSsP508yfleP68wWuZWIA9 Smirnov, et al. Expires 6 November 2022 [Page 37] Internet-Draft Using GOST Algorithms for XML Digital Si May 2022 CafIWuD+SN6qa7flbHy7DfD2a8yuoaYA== Base64-encoded signed XML document: 77u/ PD94bWwgdmVyc2lvbj0iMS4wIiBlbmNvZGluZz0idXRmLTgiPz48cm9vdD4NCiAgIDxE YXRhVG9TaWduIElkPSJUb1NpZ24iPkRhdGE8L0RhdGFUb1NpZ24+DQogICA8U2lnbmF0d XJl IHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwLzA5L3htbGRzaWcjIj4NCiAgI CAgIDxT aWduZWRJbmZvPg0KICAgICAgICAgPENhbm9uaWNhbGl6YXRpb25NZXRob2QgQ Wxnb3JpdGht PSJodHRwOi8vd3d3LnczLm9yZy9UUi8yMDAxL1JFQy14bWwtYzE0bi0yM DAxMDMxNSIgLz4N CiAgICAgICAgIDxTaWduYXR1cmVNZXRob2QgQWxnb3JpdGhtPSJ1c m46aWV0ZjpwYXJhbXM6 eG1sOm5zOmNweG1sc2VjOmFsZ29yaXRobXM6Z29zdHIzNDEwM jAwMS1nb3N0cjM0MTEiIC8+ DQogICAgICAgICA8UmVmZXJlbmNlIFVSST0iI1RvU2lnb iI+DQogICAgICAgICAgICA8VHJh bnNmb3Jtcz4NCiAgICAgICAgICAgICAgIDxUcmFuc 2Zvcm0gQWxnb3JpdGhtPSJodHRwOi8v d3d3LnczLm9yZy9UUi8yMDAxL1JFQy14bWwtY zE0bi0yMDAxMDMxNSIgLz4NCiAgICAgICAg ICAgIDwvVHJhbnNmb3Jtcz4NCiAgICAgI CAgICAgIDxEaWdlc3RNZXRob2QgQWxnb3JpdGht PSJ1cm46aWV0ZjpwYXJhbXM6eG1sO m5zOmNweG1sc2VjOmFsZ29yaXRobXM6Z29zdHIzNDEx IiAvPg0KICAgICAgICAgICAgP ERpZ2VzdFZhbHVlPkZWUWJ6RjJkamZOTkpPM0pHME9MZlNP RGxaa2liVGNVbUYyRFM0b m51UFk9PC9EaWdlc3RWYWx1ZT4NCiAgICAgICAgIDwvUmVmZXJl bmNlPg0KICAgICAgP C9TaWduZWRJbmZvPg0KICAgICAgPFNpZ25hdHVyZVZhbHVlPm4yVUh0 ZHUyNWZQekpOW XlvamJOVHE1MlYxRDNVQlZRcUk1eE5oZFlvcERwTWpwZWlOMkgrM3h5UTRP Ly9uenMxT G4vb3F3enZ1OXpwYUgzUTBCUGF3PT08L1NpZ25hdHVyZVZhbHVlPg0KICAgICAg PEtle UluZm8+DQogICAgICAgICA8S2V5VmFsdWU+DQogICAgICAgICAgICA8R09TVFIzNDEw M jAwMUtleVZhbHVlIHhtbG5zPSJ1cm46aWV0ZjpwYXJhbXM6eG1sOm5zOmNweG1sc2VjIj 4N CiAgICAgICAgICAgICAgIDxOYW1lZEN1cnZlIFVSST0idXJuOm9pZDoxLjIuNjQzLj IuMi4z Ni4wIiAvPg0KICAgICAgICAgICAgICAgPFB1YmxpY0tleT5oSlZvZFdBQ0drQj FDTTBUakRH SkxQM2xCUU42UTF6MGJTc1A1MDh5ZmxlUDY4d1d1WldJQTlDYWZJV3VEK1 NONnFhN2ZsYkh5 N0RmRDJhOHl1b2FZQT09PC9QdWJsaWNLZXk+DQogICAgICAgICAgIC A8L0dPU1RSMzQxMDIw MDFLZXlWYWx1ZT4NCiAgICAgICAgIDwvS2V5VmFsdWU+DQogIC AgICA8L0tleUluZm8+DQog ICA8L1NpZ25hdHVyZT4NCjwvcm9vdD4= B.4. Signed XML document with X.509 certificate in KeyInfo element The following sample was constructed using the X.509 certificate from Appendix A of [R1323565.1.023-2018]. X-coordinate of public key: Smirnov, et al. Expires 6 November 2022 [Page 38] Internet-Draft Using GOST Algorithms for XML Digital Si May 2022 0x971566CEDA436EE7678F7E07E84EBB7217406C0B4747AA8FD2AB1453C3D0DFBA Y-coordinate of public key: 0xAD58736965949F8E59830F8DE20FC6C0D177F6AB599874F1E2E24FF71F9CE643 Corresponding private key (d): 0xBFCF1D623E5CDD3032A7C6EABB4A923C46E43D640FFEAAF2C3ED39A8FA399924 K value: 0x5782C53F110C596F9155D35EBD25A06A89C50391850A8FEFE33B0E270318857C H-bar value: 0x054D1DABB161D63424F8DABB2800708B00F78DA7582699E8F2F0A521C7CE8144 Signed XML document: Data Smirnov, et al. Expires 6 November 2022 [Page 39] Internet-Draft Using GOST Algorithms for XML Digital Si May 2022 9QLsxPPo7LlX6IXqwzjcNDmbFuCCGivQ1s61hcPuITM= jcQJhWtWbTCV7bjFky5vGXXUFigc74FXRi79lZnFHK7pMjpeiN2H+3xyQ4O//nz s1Ln/oqwzvu9zpaH3Q0BPaw== MIICYjCCAg+gAwIBAgIBATAKBggqhQMHAQEDAjBWMSkwJwYJKoZIhvcNA QkBFhpHb3N0UjM0MTAtMjAxMkBleGFtcGxlLmNvbTEpMCcGA1UEAxMgR2 9zdFIzNDEwLTIwMTIgKDI1NiBiaXQpIGV4YW1wbGUwHhcNMTMxMTA1MTQ wMjM3WhcNMzAxMTAxMTQwMjM3WjBWMSkwJwYJKoZIhvcNAQkBFhpHb3N0 UjM0MTAtMjAxMkBleGFtcGxlLmNvbTEpMCcGA1UEAxMgR29zdFIzNDEwL TIwMTIgKDI1NiBiaXQpIGV4YW1wbGUwZjAfBggqhQMHAQEBATATBgcqhQ MCAiQABggqhQMHAQECAgNDAARAut/Qw1MUq9KPqkdHC2xAF3K7TugHfo9 n525D2s5mFZdD5pwf90/i4vF0mFmr9nfRwMYP4o0Pg1mOn5RlaXNYraOB wDCBvTAdBgNVHQ4EFgQU1fIeN1HaPbw+XWUzbkJ+kHJUT0AwCwYDVR0PB AQDAgHGMA8GA1UdEwQIMAYBAf8CAQEwfgYDVR0BBHcwdYAU1fIeN1HaPb w+XWUzbkJ+kHJUT0ChWqRYMFYxKTAnBgkqhkiG9w0BCQEWGkdvc3RSMzQ xMC0yMDEyQGV4YW1wbGUuY29tMSkwJwYDVQQDEyBHb3N0UjM0MTAtMjAx MiAoMjU2IGJpdCkgZXhhbXBsZYIBATAKBggqhQMHAQEDAgNBAF5bm4BbA RR6hJLEoWJkOsYV3Hd7kXQQjz3CdqQfmHrz6TI6Xojdh/t8ckODv/587N S5/6KsM77vc6Wh90NAT2s= Base64-encoded signed XML document: 77u/ PD94bWwgdmVyc2lvbj0iMS4wIiBlbmNvZGluZz0idXRmLTgiPz48cm9vdD4NCiAgIDxE YXRhVG9TaWduIElkPSJUb1NpZ24iPkRhdGE8L0RhdGFUb1NpZ24+DQogICA8U2lnbmF0d XJl IHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwLzA5L3htbGRzaWcjIj4NCiAgI CAgIDxT aWduZWRJbmZvPg0KICAgICAgICAgPENhbm9uaWNhbGl6YXRpb25NZXRob2QgQ Wxnb3JpdGht PSJodHRwOi8vd3d3LnczLm9yZy9UUi8yMDAxL1JFQy14bWwtYzE0bi0yM DAxMDMxNSIgLz4N CiAgICAgICAgIDxTaWduYXR1cmVNZXRob2QgQWxnb3JpdGhtPSJ1c Smirnov, et al. Expires 6 November 2022 [Page 40] Internet-Draft Using GOST Algorithms for XML Digital Si May 2022 m46aWV0ZjpwYXJhbXM6 eG1sOm5zOmNweG1sc2VjOmFsZ29yaXRobXM6Z29zdHIzNDEwM jAxMi1nb3N0cjM0MTEyMDEy LTI1NiIgLz4NCiAgICAgICAgIDxSZWZlcmVuY2UgVVJJP SIjVG9TaWduIj4NCiAgICAgICAg ICAgIDxUcmFuc2Zvcm1zPg0KICAgICAgICAgICAgI CAgPFRyYW5zZm9ybSBBbGdvcml0aG09 Imh0dHA6Ly93d3cudzMub3JnL1RSLzIwMDEvU kVDLXhtbC1jMTRuLTIwMDEwMzE1IiAvPg0K ICAgICAgICAgICAgPC9UcmFuc2Zvcm1zP g0KICAgICAgICAgICAgPERpZ2VzdE1ldGhvZCBB bGdvcml0aG09InVybjppZXRmOnBhc mFtczp4bWw6bnM6Y3B4bWxzZWM6YWxnb3JpdGhtczpn b3N0cjM0MTEyMDEyLTI1NiIgL z4NCiAgICAgICAgICAgIDxEaWdlc3RWYWx1ZT45UUxzeFBQ bzdMbFg2SVhxd3pqY05Eb WJGdUNDR2l2UTFzNjFoY1B1SVRNPTwvRGlnZXN0VmFsdWU+DQog ICAgICAgICA8L1JlZ mVyZW5jZT4NCiAgICAgIDwvU2lnbmVkSW5mbz4NCiAgICAgIDxTaWdu YXR1cmVWYWx1Z T5qY1FKaFd0V2JUQ1Y3YmpGa3k1dkdYWFVGaWdjNzRGWFJpNzlsWm5GSEs3 cE1qcGVpT jJIKzN4eVE0Ty8vbnpzMUxuL29xd3p2dTl6cGFIM1EwQlBhdz09PC9TaWduYXR1 cmVWY Wx1ZT4NCiAgICAgIDxLZXlJbmZvPg0KICAgICAgICAgPFg1MDlEYXRhPg0KICAgICAg I CAgICAgPFg1MDlDZXJ0aWZpY2F0ZT5NSUlDWWpDQ0FnK2dBd0lCQWdJQkFUQUtCZ2dxaF FN SEFRRURBakJXTVNrd0p3WUpLb1pJaHZjTkFRa0JGaHBIYjNOMFVqTTBNVEF0TWpBeE 1rQmxl R0Z0Y0d4bExtTnZiVEVwTUNjR0ExVUVBeE1nUjI5emRGSXpOREV3TFRJd01USW dLREkxTmlC aWFYUXBJR1Y0WVcxd2JHVXdIaGNOTVRNeE1UQTFNVFF3TWpNM1doY05Nek F4TVRBeE1UUXdN ak0zV2pCV01Ta3dKd1lKS29aSWh2Y05BUWtCRmhwSGIzTjBVak0wTV RBdE1qQXhNa0JsZUdG dGNHeGxMbU52YlRFcE1DY0dBMVVFQXhNZ1IyOXpkRkl6TkRFd0 xUSXdNVElnS0RJMU5pQmlh WFFwSUdWNFlXMXdiR1V3WmpBZkJnZ3FoUU1IQVFFQkFUQV RCZ2NxaFFNQ0FpUUFCZ2dxaFFN SEFRRUNBZ05EQUFSQXV0L1F3MU1VcTlLUHFrZEhDMn hBRjNLN1R1Z0hmbzluNTI1RDJzNW1G WmRENXB3ZjkwL2k0dkYwbUZtcjluZlJ3TVlQNG 8wUGcxbU9uNVJsYVhOWXJhT0J3RENCdlRB ZEJnTlZIUTRFRmdRVTFmSWVOMUhhUGJ3K1 hXVXpia0ora0hKVVQwQXdDd1lEVlIwUEJBUURB Z0hHTUE4R0ExVWRFd1FJTUFZQkFmOE NBUUV3ZmdZRFZSMEJCSGN3ZFlBVTFmSWVOMUhhUGJ3 K1hXVXpia0ora0hKVVQwQ2hXcV JZTUZZeEtUQW5CZ2txaGtpRzl3MEJDUUVXR2tkdmMzUlNN elF4TUMweU1ERXlRR1Y0WV cxd2JHVXVZMjl0TVNrd0p3WURWUVFERXlCSGIzTjBVak0wTVRB dE1qQXhNaUFvTWpVMk lHSnBkQ2tnWlhoaGJYQnNaWUlCQVRBS0JnZ3FoUU1IQVFFREFnTkJB RjVibTRCYkFSUj ZoSkxFb1dKa09zWVYzSGQ3a1hRUWp6M0NkcVFmbUhyejZUSTZYb2pkaC90 OGNrT0R2Lz U4N05TNS82S3NNNzd2YzZXaDkwTkFUMnM9PC9YNTA5Q2VydGlmaWNhdGU+DQog ICAgIC AgICA8L1g1MDlEYXRhPg0KICAgICAgPC9LZXlJbmZvPg0KICAgPC9TaWduYXR1cmU+ DQo8L3Jvb3Q+ B.5. Signed XML document with GOST R 34.10-2012 algorithm and 256-bit public key in DEREncodedKeyValue The following sample was constructed using the X.509 certificate from Appendix A of [R1323565.1.023-2018]. X-coordinate of public key: 0x971566CEDA436EE7678F7E07E84EBB7217406C0B4747AA8FD2AB1453C3D0DFBA Y-coordinate of public key: Smirnov, et al. Expires 6 November 2022 [Page 41] Internet-Draft Using GOST Algorithms for XML Digital Si May 2022 0xAD58736965949F8E59830F8DE20FC6C0D177F6AB599874F1E2E24FF71F9CE643 Corresponding private key: 0xBFCF1D623E5CDD3032A7C6EABB4A923C46E43D640FFEAAF2C3ED39A8FA399924 K value: 0x5782C53F110C596F9155D35EBD25A06A89C50391850A8FEFE33B0E270318857C H-bar value: 0x054D1DABB161D63424F8DABB2800708B00F78DA7582699E8F2F0A521C7CE8144 Signed XML document: Smirnov, et al. Expires 6 November 2022 [Page 42] Internet-Draft Using GOST Algorithms for XML Digital Si May 2022 Data 9QLsxPPo7LlX6IXqwzjcNDmbFuCCGivQ1s61hcPuITM= jcQJhWtWbTCV7bjFky5vGXXUFigc74FXRi79lZnFHK7pMjpeiN2H+3xyQ4O//nz s1Ln/oqwzvu9zpaH3Q0BPaw== MGYwHwYIKoUDBwEBAQEwEwYHKoUDAgIkAAYIKoUDBwEBAgIDQwAEQLrf0MNT FKvSj6pHRwtsQBdyu07oB36PZ+duQ9rOZhWXQ+acH/dP4uLxdJhZq/Z30cDG D+KND4NZjp+UZWlzWK0= Base64-encoded signed XML document: Smirnov, et al. Expires 6 November 2022 [Page 43] Internet-Draft Using GOST Algorithms for XML Digital Si May 2022 77u/ PD94bWwgdmVyc2lvbj0iMS4wIiBlbmNvZGluZz0idXRmLTgiPz48cm9vdD4NCiAgIDxE YXRhVG9TaWduIElkPSJUb1NpZ24iPkRhdGE8L0RhdGFUb1NpZ24+DQogICA8U2lnbmF0d XJl IHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwLzA5L3htbGRzaWcjIj4NCiAgI CAgIDxT aWduZWRJbmZvPg0KICAgICAgICAgPENhbm9uaWNhbGl6YXRpb25NZXRob2QgQ Wxnb3JpdGht PSJodHRwOi8vd3d3LnczLm9yZy9UUi8yMDAxL1JFQy14bWwtYzE0bi0yM DAxMDMxNSIgLz4N CiAgICAgICAgIDxTaWduYXR1cmVNZXRob2QgQWxnb3JpdGhtPSJ1c m46aWV0ZjpwYXJhbXM6 eG1sOm5zOmNweG1sc2VjOmFsZ29yaXRobXM6Z29zdHIzNDEwM jAxMi1nb3N0cjM0MTEyMDEy LTI1NiIgLz4NCiAgICAgICAgIDxSZWZlcmVuY2UgVVJJP SIjVG9TaWduIj4NCiAgICAgICAg ICAgIDxUcmFuc2Zvcm1zPg0KICAgICAgICAgICAgI CAgPFRyYW5zZm9ybSBBbGdvcml0aG09 Imh0dHA6Ly93d3cudzMub3JnL1RSLzIwMDEvU kVDLXhtbC1jMTRuLTIwMDEwMzE1IiAvPg0K ICAgICAgICAgICAgPC9UcmFuc2Zvcm1zP g0KICAgICAgICAgICAgPERpZ2VzdE1ldGhvZCBB bGdvcml0aG09InVybjppZXRmOnBhc mFtczp4bWw6bnM6Y3B4bWxzZWM6YWxnb3JpdGhtczpn b3N0cjM0MTEyMDEyLTI1NiIgL z4NCiAgICAgICAgICAgIDxEaWdlc3RWYWx1ZT45UUxzeFBQ bzdMbFg2SVhxd3pqY05Eb WJGdUNDR2l2UTFzNjFoY1B1SVRNPTwvRGlnZXN0VmFsdWU+DQog ICAgICAgICA8L1JlZ mVyZW5jZT4NCiAgICAgIDwvU2lnbmVkSW5mbz4NCiAgICAgIDxTaWdu YXR1cmVWYWx1Z T5qY1FKaFd0V2JUQ1Y3YmpGa3k1dkdYWFVGaWdjNzRGWFJpNzlsWm5GSEs3 cE1qcGVpT jJIKzN4eVE0Ty8vbnpzMUxuL29xd3p2dTl6cGFIM1EwQlBhdz09PC9TaWduYXR1 cmVWY Wx1ZT4NCiAgICAgIDxLZXlJbmZvPg0KICAgICAgICAgPERFUkVuY29kZWRLZXlWYWx1 Z SB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwOS94bWxkc2lnMTEjIj5NR1l3SHdZSU tv VURCd0VCQVFFd0V3WUhLb1VEQWdJa0FBWUlLb1VEQndFQkFnSURRd0FFUUxyZjBNTl RGS3ZT ajZwSFJ3dHNRQmR5dTA3b0IzNlBaK2R1UTlyT1poV1hRK2FjSC9kUDR1THhkSm hacS9aMzBj REdEK0tORDROWmpwK1VaV2x6V0swPTwvREVSRW5jb2RlZEtleVZhbHVlPg 0KICAgICAgPC9L ZXlJbmZvPg0KICAgPC9TaWduYXR1cmU+DQo8L3Jvb3Q+ Appendix C. Acknowledgments We thank Ekaterina Griboedova and Evgeny Alekseev for their useful comments. Authors' Addresses Pavel Smirnov (editor) CryptoPro 18, Suschevsky val Moscow 127018 Russian Federation Phone: +7 (495) 995-48-20 Email: spv@cryptopro.ru Smirnov, et al. Expires 6 November 2022 [Page 44] Internet-Draft Using GOST Algorithms for XML Digital Si May 2022 Maria Paramonova CryptoPro 18, Suschevsky val Moscow 127018 Russian Federation Phone: +7 (495) 995-48-20 Email: mparamonova@cryptopro.ru Mikhail Khomenko CryptoPro 18, Suschevsky val Moscow 127018 Russian Federation Phone: +7 (495) 995-48-20 Email: xmv@cryptopro.ru Artyom Makarov CryptoPro 18, Suschevsky val Moscow 127018 Russian Federation Phone: +7 (495) 995-48-20 Email: makarov@cryptopro.ru Smirnov, et al. Expires 6 November 2022 [Page 45]