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Maximum length in octets of messages that can be hashed

To: ietf-smime@xxxxxxx
Subject: Maximum length in octets of messages that can be hashed
From: "Maxim Masiutin" <max@xxxxxxxxxxx>
Date: Thu, 5 Mar 2009 15:14:02 +0200
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Reply-to: "Maxim Masiutin" <max@xxxxxxxxxxx>
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Hello Ietf-Smime,

  Secion 3.6.1 of "SEC 1: Elliptic Curve Cryptography" http://www.secg.org/download/aid-385/sec1_final.pdf defines

"hashmaxlen" as "the maximum length in octets of messages that can be hashed using Hash".

  Where can I find the maximum lenght of message for SHA-1, SHA-224(etc). I've searched through fip180-1 and didn't find any limitation. ANSI-X9.63 also imposes the limitation. Why then the authors ANSI-X9.63 did define the hashmaxlen limitation if there is no such limitation practically?

-- 
Best regards,
Maxim Masiutin                          mailto:max@xxxxxxxxxxx

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