RSA_SIGN_ASN1_OCTET_STRING(3ssl) OpenSSL RSA_SIGN_ASN1_OCTET_STRING(3ssl) RSA_sign_ASN1_OCTET_STRING, RSA_verify_ASN1_OCTET_STRING - RSA #include OpenSSL 3.0 OPENSSL_API_COMPAT openssl_user_macros(7): 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); . EVP PKEY . RSA_sign_ASN1_OCTET_STRING() m m_len rsa DER PKCS #1. sigret siglen. sigret RSA_size(rsa) . dummy . RSA_sign_ASN1_OCTET_STRING(). CSPRNG OpenSSL ( RAND(7)) . RSA_verify_ASN1_OCTET_STRING() sigbuf siglen DER m m_len. dummy . rsa . RSA_sign_ASN1_OCTET_STRING() 1 0 . RSA_verify_ASN1_OCTET_STRING() 1 0 . ERR_get_error(3). . ERR_get_error(3), RAND_bytes(3), RSA_sign(3), RSA_verify(3), RAND(7) OpenSSL 3.0. 2000-2020 OpenSSL. . Apache 2.0 ( ""). . LICENSE . 3 . . : . 3.6.2 7 2026 RSA_SIGN_ASN1_OCTET_STRING(3ssl)