openssl_private_encrypt
PHP function
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(PHP 4 >= 4.0.6, PHP 5, PHP 7, PHP 8)
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
dataencrypted_dataprivate_keyprivate_keymust be the private key that corresponds to the public key that will be used to decrypt the data.paddingpaddingcan be one ofOPENSSL_PKCS1_PADDING,OPENSSL_NO_PADDING.
Return Values
Success
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. |