OpenSSL and CryptoAPI

[Antonio Cesa da Silveira Jr.]

Hello people, i am newbie in OpenSSL and need som help.   I have signed data with CryptSignMessage function of M$ CryptoAPI for a time, but now I need verify that signatures in *unix* systems. I am trying to use openSSL, but without success.    Somebody already used openssl or other library to verify signatures created with cryptSignMessage ?  If yes, would can show me the way to do this .    Any kind of help, explanation are welcome.    Thanks .