openssl_private_encrypt
(PHP 4 >= 4.0.6, PHP 5, PHP 7, PHP 8)
openssl_private_encrypt — Encrypts data with private key
Description
openssl_private_encrypt( string $data, string &$encrypted_data, OpenSSLAsymmetricKey|OpenSSLCertificate|array|string $private_key, int $padding = OPENSSL_PKCS1_PADDING ): bool
openssl_private_encrypt() encrypts data with private private_key and stores the result into encrypted_data. 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.
Parameters
-
data -
encrypted_data -
private_key -
padding -
paddingcan be one ofOPENSSL_PKCS1_PADDING,OPENSSL_NO_PADDING.
Return Values
Returns true on success or false on failure.
Changelog
| Version | Description |
|---|---|
| 8.0.0 | private_key accepts an OpenSSLAsymmetricKey or OpenSSLCertificate instance now; previously, a resource of type OpenSSL key or OpenSSL X.509 was accepted. |
See Also
- openssl_public_encrypt() - Encrypts data with public key
- openssl_public_decrypt() - Decrypts data with public key
© 1997–2021 The PHP Documentation Group
Licensed under the Creative Commons Attribution License v3.0 or later.
https://www.php.net/manual/en/function.openssl-private-encrypt.php
