/usr/man/cat.3/RSA_sign_ASN1_OCTET_STRING.3

RSA_sign_ASN1_OCTET_STRING(3)OpenSSLRSA_sign_ASN1_OCTET_STRING(3)

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

     RSA_sign_ASN1_OCTET_STRING() 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. sigret must point to
     RSA_size(rsa) bytes of memory.

     dummy is ignored.

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

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

RETURN VALUES

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

     The error codes can be obtained by ERR_get_error(3).

BUGS

     These functions serve no recognizable purpose.

SEE ALSO

     ERR_get_error(3), objects(3), rand(3), rsa(3), RSA_sign(3),
     RSA_verify(3)

HISTORY

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

1.0.2t               Last change: 2019-09-10                    1

See also RSA_verify_ASN1_OCTET_STRING(3)