NAME

RSA_sign_ASN1_OCTET_STRING, RSA_verify_ASN1_OCTET_STRING − RSA signatures

SYNOPSIS

#include <openssl/rsa.h>
int RSA_sign_ASN1_OCTET_STRING(
        int dummy, unsigned char ∗m, unsigned int m_len, unsigned char ∗sigret, unsigned int ∗siglen, RSA ∗rsa ); int RSA_verify_ASN1_OCTET_STRING(
        int dummy, unsigned char ∗m, unsigned int m_len, unsigned char ∗sigbuf, unsigned int siglen, RSA ∗rsa );

DESCRIPTION

The RSA_sign_ASN1_OCTET_STRING() function signs the octet string m of size m_len using the private key rsa represented in DER using PKCS #1 padding.  It stores the signature in sigret and the signature size in siglen. The sigret must point to RSA_size(rsa) bytes of memory. 

The dummy is ignored. 

The random number generator must be seeded prior to calling the RSA_sign_ASN1_OCTET_STRING() function. 

The RSA_verify_ASN1_OCTET_STRING() function verifies that the signature sigbuf of size siglen is the DER representation of a given octet string m of size m_len. The dummy is ignored. The rsa is the signer’s public key. 

RESTRICTIONS

These functions serve no recognizable purpose. 

RETURN VALUES

The RSA_sign_ASN1_OCTET_STRING() function returns 1 on success, 0 otherwise. The RSA_verify_ASN1_OCTET_STRING() function returns 1 on successful verification, 0 otherwise. 

The error codes can be obtained by using the ERR_get_error() function. 

HISTORY

The RSA_sign_ASN1_OCTET_STRING() and RSA_verify_ASN1_OCTET_STRING() functions were added in SSLeay 0.8. 

SEE ALSO

Functions: err(3), objects(3), rand(3), rsa(3), RSA_sign(3), RSA_verify(3)