openssl_private_encrypt

Encrypts data with private key (PHP 4 >= 4.0.6, PHP 5)
bool openssl_private_encrypt ( string data, string &crypted, mixed key [, int padding] )

openssl_private_encrypt() encrypts data with private key and stores the result into crypted. Encrypted data can be decrypted via openssl_public_decrypt().

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

data
crypted
key
padding: padding defaults to OPENSSL_PKCS1_PADDING, but can also be OPENSSL_NO_PADDING.

Returns TRUE on success or FALSE on failure.

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