(PHP 4 >= 4.0.6, PHP 5, PHP 7)
openssl_private_encrypt — Encrypts data with private key
$data
, string &$crypted
, mixed $key
[, int $padding = OPENSSL_PKCS1_PADDING
] )
openssl_private_encrypt() encrypts data
with private key and stores the result into
crypted. Encrypted data can be decrypted via
openssl_public_decrypt().
This function can be used e.g. to sign data (or its hash) to prove that it is not written by someone else.
data
crypted
key
padding
padding can be one of
OPENSSL_PKCS1_PADDING,
OPENSSL_NO_PADDING.
成功时返回 TRUE， 或者在失败时返回 FALSE。