Re: why does PSS signature scheme put a "0" before the input to the

From: DJohn37050 (djohn37050_at_aol.com)
Date: 10/16/03 

Date: 16 Oct 2003 14:09:33 GMT

when doing things by bitwise concatenation of fields, prepending a zero makes
sure the payload to be encrypted is less than the modulus. It is just a way of
describing the way to make sure this is true. if you think of it as a number,
then the number is still the same value, but think of it as a bitstring.
Don Johnson

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