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(PHP 4 >= 4.0.6, PHP 5)

openssl_private_encrypt -- Encrypts data with private key

Description

bool openssl_private_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_private_encrypt() encrypts data with private key and stores the result into crypted . Encrypted data can be decrypted via openssl_public_decrypt() . padding defaults to OPENSSL_PKCS1_PADDING , but can also be OPENSSL_NO_PADDING .

Returns TRUE on success or FALSE on failure.

This function can be used e.g. to sign data (or its hash) to prove that it is not written by someone else.

Related Function(s)

openssl_public_decrypt()

openssl_public_encrypt()