Hi I have found the answer. The data was revered between the 2 platforms. By reversing the string I am able to get RSA_verify to work.
Hylton -----Original Message----- From: Hylton Tregenza Sent: 04 January 2002 11:11 To: [EMAIL PROTECTED] Subject: RSA_verify question Hi I am using RSA_verify to verify that the signiture that I am getting with a message is correct The process that I am using is as follows. Get the user public key from file and put it in a RSA structure ERR_print_errors returns no error Get Server private key from file and put in another RSA structure (I know it is not used verify but I want to sign late too) ERR_print_errors returns no error Read the signed message digest from disk and decode (pASN1-> ... used later) ERR_print_errors returns no error Create a digest of the data using (digest used EVP_sha1()) - (hard coded string for testing) EVP_DigestInit EVP_DigestUpdate EVP_DigestFinal ERR_print_errors returns no error RSA_verify(NID_sha1, (unsigned char *) &md, len_md, pASN1->data, pASN1->length, PubRsaKey); - failed : returns 0 ERR_print_errors returns 6114:error:0407006A:rsa routines:RSA_padding_check_PKCS1_type_1:block type is not 01:rsa_pk1.c:100: 6114:error:04067072:rsa routines:RSA_EAY_PUBLIC_DECRYPT:padding check failed:rsa_eay.c:396: All data read from disk is from a MS client encoded using CryptEncodeObject. All data is read and decoded (d2i finctions) without reported error Please advise on what action I need to take to resolve this or what the problem(s) could be. My app is not too large and is attached for additional info. Hylton Tregenza ______________________________________________________________________ OpenSSL Project http://www.openssl.org User Support Mailing List [EMAIL PROTECTED] Automated List Manager [EMAIL PROTECTED]