RSA_sign_ASN1_OCTET_STRING(3)RSA_sign_ASN1_OCTET_STRING(3)NAME
RSA_sign_ASN1_OCTET_STRING, RSA_verify_ASN1_OCTET_STRING - RSA signa‐
tures
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_ver‐
ify_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 oth‐
erwise. The RSA_verify_ASN1_OCTET_STRING() function returns 1 on suc‐
cessful 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_ver‐
ify(3)RSA_sign_ASN1_OCTET_STRING(3)