Signature Algorithms

OPENSSL_ALGO_DSS1 ( integer )

OPENSSL_ALGO_SHA1 ( integer )

Used as default algorithm by openssl_sign() and openssl_verify() .

OPENSSL_ALGO_SHA224 ( integer )

OPENSSL_ALGO_SHA256 ( integer )

OPENSSL_ALGO_SHA384 ( integer )

OPENSSL_ALGO_SHA512 ( integer )

OPENSSL_ALGO_RMD160 ( integer )

OPENSSL_ALGO_MD5 ( integer )

OPENSSL_ALGO_MD4 ( integer )

OPENSSL_ALGO_MD2 ( integer )

As of PHP 5.2.13 and PHP 5.3.2, this constant is only available if PHP is compiled with MD2 support. This requires passing in the -DHAVE_OPENSSL_MD2_H CFLAG when compiling PHP, and enable-md2 when compiling OpenSSL 1.0.0+.

Note:

These constants were added in 5.0.0.

OPENSSL_ALGO_MD2 , OPENSSL_ALGO_MD4 , OPENSSL_ALGO_MD5 , OPENSSL_ALGO_SHA1 , OPENSSL_ALGO_DSS1

Note:

These constants were added in 5.4.8.

OPENSSL_ALGO_RMD160 , OPENSSL_ALGO_SHA224 , OPENSSL_ALGO_SHA256 , OPENSSL_ALGO_SHA384 , OPENSSL_ALGO_SHA512