PKCS7 Flags/Constants
Ciphers
Constantes predefinidas
PHP Manual

## Signature Algorithms

`OPENSSL_ALGO_DSS1` (integer)
`OPENSSL_ALGO_SHA1` (integer)
  Used as default algorithm by openssl_sign() and openssl_verify().
`OPENSSL_ALGO_MD5` (integer)
`OPENSSL_ALGO_MD4` (integer)
`OPENSSL_ALGO_MD2` (integer)

> Note: These constants were added in 5.0.0.

PKCS7 Flags/Constants
Ciphers
Constantes predefinidas
PHP Manual