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# openssl_public_decrypt

(PHP 4 >= 4.0.6, PHP 5)

openssl_public_decrypt -- Decrypts data with public key

## Description

bool openssl_public_decrypt ( string data, string &decrypted, mixed key [, int padding])

切記!
這個函數是實驗性質的。這個函數的行為、名稱、和關於此函數的任何其他文件在未來PHP的發行中可能會在不通知的情況下改變。 使用此延伸需自行承擔風險。

openssl_public_decrypt() decrypts data that was previous encrypted via openssl_private_encrypt() and stores the result into decrypted. key must be the public key corresponding that was used to encrypt the data. padding defaults to `OPENSSL_PKCS1_PADDING`, but can also be `OPENSSL_NO_PADDING`.

成功回傳`TRUE`失敗回傳`FALSE`。

You can use this function e.g. to check if the message was written by the owner of the private key.

See also openssl_private_encrypt() and openssl_private_decrypt().

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