I understood, that n should be the modulus and e the exponent. pRSA->n = BN_bin2bn( pPublicModulus, nPublicModulusLength, NULL ); pRSA->e = BN_bin2bn( pPublicExponent, nPublicExponentLength, NULL );
Frank Wockenfuß -----Ursprüngliche Nachricht----- Von: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Im Auftrag von Marek Marcola Gesendet: Mittwoch, 1. August 2007 11:02 An: openssl-users@openssl.org Betreff: Re: RSA_public_decrypt problem Hello, > I'm trying to use the RSA_public_decrypt function but I need to set up the > public key "manually". > I have the public exponent and modulus in the form of an array of > 'unsigned char' and have converted these to BIGNUM format using BN_bin2bn. I > assigned them to the RSA fields n and e. > The I call RSA_public_decrypt, but it is returning -1. Calling ERR_GET_REASON > returns 101 (RSA_F_RSA_EAY_PRIVATE_DECRYPT?)? > What does this mean and how do I need to change my program? > > I'm using OpenSSL 0.9.8e and WinXP/Visual Studio 2005. > The modulus and exponent values I set to the structure are read from a > smartcard. Looks like swapped n and e in RSA (if correctly read to BN). Best regards, -- Marek Marcola <[EMAIL PROTECTED]> ______________________________________________________________________ OpenSSL Project http://www.openssl.org User Support Mailing List openssl-users@openssl.org Automated List Manager [EMAIL PROTECTED] ______________________________________________________________________ OpenSSL Project http://www.openssl.org User Support Mailing List openssl-users@openssl.org Automated List Manager [EMAIL PROTECTED]
