On Tue, Dec 14, 2010 at 09:46:11PM -0800, Kannan J wrote:
> I'm copying and pasting the text from the smart card guide. It is too
big to attach.
Please use plain-text (non-HTML) email when sending mail to lists.
> The following convention applies for the P, Q, DP1, DQ1, and PQ parameters:
> P is the smallest RSA prime
> Q is the other RSA prime
> ...
> PQ = P-1 mod Q
Then "PQ" is not a product, rather the value "P-1" mod Q. So what's the
issue?
> NOTE: For the key being loaded, Size of (P) must be equal to Size of (Q) and
> this value must be half
> the size of modulus. For example: For RSA 2048-bit key, modulus size is 256,
> and size (P) , Size (Q) are half the modulus size, (I.e.) 128 bytes
Perhaps your primes are not exactly 128-bytes long? They may need to be
padded with leading zeros.
--
Viktor.
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