Hello,
> I have found the reason for the problem. Deep inside my program was a bug
> that switched modulus and exponent, so I set the wrong values to n and e.
My first suggestion :-)
> I've fixed the bug and also removed the leading 00 so that I get a good 128
> byte long modulus and a 4 byte lo
> Same mistake as before: 119 means RSA_R_WRONG_SIGNATURE_LENGTH
>
> Frank Wockenfuß
Perhaps you aren't using the same padding as the signature was made with?
Perhaps what you have isn't really a signature at all. It's hard to say.
DS
___
> I do
>
> ENGINE_load_builtin_engines();
>
> before calling the decrypt function. There is no other engine
> attached, I use the standard engines from OpenSSL 0.9.8e.
>
> Are there other way to verify the signature with only the public key?
RSA_verify.
DS
_
> This is the first call in the engine and the set of n and e
> doesn't raise any error (I've just tested it). The error occurs
> on RSA_public_decrypt.
>
> Frank Wockenfuß
I see no way RSA_public_decrypt can make ERR_GET_REASON return 101. If
you're 100% absolutely positively sure that's happeni
> > You're right, I get RSA_R_BAD_E_VALUE (101). Just took the wrong
> > define for the mail. ERR_GET_REASON returns 101.
> Only the RSA key generation function can produce this error.
> Perhaps you had it left over from a previous function you called?
> Perhaps your engine can generate this erro
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
> You're right, I get RSA_R_BAD_E_VALUE (101). Just took the wrong
> define for the mail. ERR_GET_REASON returns 101.
Only the RSA key generation function can produce this error. Perhaps you had
it left over from a previous function you called? Perhaps your engine can
generate this error in respo
> 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
