Hi,
Thank you very much for the reply.
I understood the schemes in PKCS#1v2.1.
But some protocols wants the signature scheme as that defined in PKCS#1v2.0 as
it has only one encoding method defined EMSA_PKCS1v1.5.
How can I do this using Openssl 0.9.7c?
Regards
Suram
At 09:35 PM 5/30/2005, Dr. Stephen Henson wrote:
On Mon, May 30, 2005, Suram Chandra Sekhar wrote:
> Hi all,
> I want to know the sequence for signing and verifying a piece of data as
> per PKCS1 v2.0 specification using signature algorithm identifier as SHA1
> using openssl v 0.9.7c.
> My understanding is that RSA_sign uses the PKCS1v2.1 specification.
>
> Awaiting your valuable response..
>
There are two signature schemes in PKCS#1 v2.1.
RSASSA-PKCS1-V1_5 is supported by RSA_sign() with details in the relevant
manual pages.
RSASSA-PSS is *not* supported by RSA_sign(). A prototype version of PSS
padding
code has appeared in the last 0.9.7-stable snapshots but these are not
integrated into RSA_sign() and probably never will be in the 0.9.7 tree
because various changes to the underlying structures would be needed.
Steve.
--
Dr Stephen N. Henson. Email, S/MIME and PGP keys: see homepage
OpenSSL project core developer and freelance consultant.
Funding needed! Details on homepage.
Homepage: http://www.drh-consultancy.demon.co.uk
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