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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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