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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])

Warning
This function is EXPERIMENTAL. The behaviour of this function, the name of this function, and anything else documented about this function may change without notice in a future release of PHP. Use this function at your own risk.

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.

Returns `TRUE` on success or `FALSE` on failure.

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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