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ASC X9 ANSI X9.42-2003 (R2013)

Public Key Cryptography for the Financial Services Industry: Agreement of Symmetric Keys Using Discrete Logarithm Cryptography
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ASC X9 ANSI X9.42-2003 (R2013)

Public Key Cryptography for the Financial Services Industry: Agreement of Symmetric Keys Using Discrete Logarithm Cryptography

PUBLISH DATE 2003
ASC X9 ANSI X9.42-2003 (R2013)
This standard, partially adapted from ISO 11770-3 (see [13]), specifies schemes for the agreement of symmetric keys using Diffie-Hellman and MQV algorithms. It covers methods of domain parameter generation, domain parameter validation, key pair generation, public key validation, shared secret value calculation, key derivation, and test message authentication code computation for discrete logarithm problem based key agreement schemes. These methods may be used by different parties to establish a piece of common shared secret information such as cryptographic keys. The shared secret information may be used with symmetrically-keyed algorithms to provide confidentiality, authentication, and data integrity services for financial information, or used as a key-encrypting key with other ASC X9 key management protocols. The key agreement schemes given herein do not provide certain desired assurances of security, such as key confirmation and entity authentication. However, these schemes may be used in conjunction with key confirmation and entity authentication mechanisms in key establishment protocols that are specified in other ASC X9 standards. These key agreement schemes may be used as subroutines to build key establishment protocols (see [8]). The key establishment methods specified in ANS X9.63 provide examples of mechanisms for obtaining these additional security properties. Further references for key agreement can be found in [33].
SDO ASC X9: Accredited Standards Committee X9, Inc.
Document Number X9.42
Publication Date Jan. 1, 2003
Language en - English
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Publish Date Document Id Type View
Jan. 1, 2003 Revision