Dutch PHP Conference 2021 - Call for Papers

Signature Algorithms

OPENSSL_ALGO_DSS1 (int)
OPENSSL_ALGO_SHA1 (int)
Used as default algorithm by openssl_sign() and openssl_verify().
OPENSSL_ALGO_SHA224 (int)
Added in PHP 5.4.8.
OPENSSL_ALGO_SHA256 (int)
Added in PHP 5.4.8.
OPENSSL_ALGO_SHA384 (int)
Added in PHP 5.4.8.
OPENSSL_ALGO_SHA512 (int)
Added in PHP 5.4.8.
OPENSSL_ALGO_RMD160 (int)
Added in PHP 5.4.8.
OPENSSL_ALGO_MD5 (int)
OPENSSL_ALGO_MD4 (int)
OPENSSL_ALGO_MD2 (int)
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+.
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