Re: RSA signature and padding
Hello Mounir: Agreed: your version appears cleaner and more to the point. The EVP_* interfaces are not so easy to understand, but maybe this is just me :-) Thanks again for helping -- Chev On Fri, Jan 9, 2009 at 3:03 AM, Mounir IDRASSI mounir.idra...@idrix.net wrote: As far as I know, it's only supported in the 0.9.9 development tree through the introduction of the new type EVP_PKEY_CTX and the new functions EVP_PKEY_sign_init and EVP_PKEY_sign. Personally, I find it simpler to implement this scheme using the low level primitives I showed you in my sample code. __ OpenSSL Project http://www.openssl.org User Support Mailing Listopenssl-users@openssl.org Automated List Manager majord...@openssl.org
Re: RSA signature and padding
Hi Mounir: Thanks a lot for the sample code, it answers all my questions! Do you know if PSS is going to be part of the next release for RSA signatures? Cheers -- Chev __ OpenSSL Project http://www.openssl.org User Support Mailing Listopenssl-users@openssl.org Automated List Manager majord...@openssl.org
RSA signature and padding
Dear all: I have just implemented an RSA signature using openssl. What I observe is that signing the same data (a SHA-256 hash) multiple times with the same RSA key always yields the same signature. I thought the data to be signed would be padded with random bits to avoid this. My search on the topic has hit a wall with PSS padding (implemented in rsa_pss.c but undocumented). Is there any way I can pad my own data before passing it to RSA_sign()? Thanks for helping -- Chev __ OpenSSL Project http://www.openssl.org User Support Mailing Listopenssl-users@openssl.org Automated List Manager majord...@openssl.org
