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# openssl_public_encrypt

(PHP 4 >= 4.0.6, PHP 5)

openssl_public_encrypt -- Encrypts data with public key

## Description

bool openssl_public_encrypt ( string data, string &crypted, 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_encrypt() encrypts `data` with public `key` and stores the result into `crypted`. Encrypted data can be decrypted via `openssl_private_decrypt`. `padding` defaults to OPENSSL_PKCS1_PADDING, but can also be one of OPENSSL_SSLV23_PADDING, OPENSSL_PKCS1_OAEP_PADDING, OPENSSL_NO_PADDING.

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

This function can be used e.g. to encrypt message which can be then read only by owner of the private key. It can be also used to store secure data in database.

See also openssl_private_decrypt() and openssl_private_encrypt().

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