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What are ANSI X9.30 and ANSI X9.31?

April 26, 2017ANSI

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What are ANSI X9.30 and ANSI X9.31?

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ANSI X9.30 is the United States financial industry standard for digital signatures based on the federal Digital Signature Algorithm (DSA), and ANSI X9.31 [ANS93b] is the counterpart standard for digital signatures based on the RSA algorithm. ANSI X9.30 requires the SHA1 hash algorithm (see Question 100); ANSI X9.31 requires the MDC-2 hash algorithm [ISO92c]. A related document, X9.57 [ANS95], covers certificate management (see Question 123).