OPENSSL_ALGO_DSS1
(int) OPENSSL_ALGO_SHA1
(int) OPENSSL_ALGO_SHA224
(int) OPENSSL_ALGO_SHA256
(int) OPENSSL_ALGO_SHA384
(int) OPENSSL_ALGO_SHA512
(int) OPENSSL_ALGO_RMD160
(int) OPENSSL_ALGO_MD5
(int) OPENSSL_ALGO_MD4
(int) OPENSSL_ALGO_MD2
(int)