Re: rc2 export limits..

[Kent Briggs <72124.3234@compuserve.com>]

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stewarts@ix.netcom.com wrote:

> However, the usual guidelines for systems like RC2 and RC4 is
> 40-bit keys, and RSA keys up to 512 bits for encrypting
> session keys and 1024 bits for signatures

Can you list a source for the 1024-bit signature restriction?  I know
about the 40-bit RC2/RC4 and 512-bit public encryption keys because they
are specifically addressed in the State Dept's "Procedure for Submitting
a Commodity Jurisdiction Request for a Mass Market Software Product that
Contains Encryption".  However, digital signatures are not mentioned in
this procedure.  I can't image what justificication could be used to
restrict the strength of digital signatures.

Kent

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