openssl_private_decrypt
PHP function
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(PHP 4 >= 4.0.6, PHP 5, PHP 7, PHP 8)
Decrypts data with private key
Description
openssl_private_decrypt(string $data, string $decrypted_data, OpenSSLAsymmetricKey|OpenSSLCertificate|array|string $private_key, int $padding = OPENSSL_PKCS1_PADDING, string|null $digest_algo = null): bool
openssl_private_decrypt() decrypts data that was previously encrypted via openssl_public_encrypt() and stores the result into decrypted_data.
You can use this function e.g. to decrypt data which is supposed to only be available to you.
Parameters
datadecrypted_dataprivate_keyprivate_keymust be the private key that corresponds to the public key that was used to encrypt the data.paddingpaddingcan be one ofOPENSSL_PKCS1_PADDING,OPENSSL_SSLV23_PADDING,OPENSSL_PKCS1_OAEP_PADDING,OPENSSL_NO_PADDING.digest_algoThe digest algorithm for OAEP padding, or null to use the default algorithm.
Return Values
Success
Changelog
| Version | Description |
|---|---|
| 8.5.0 | The optional parameter digest_algo has been added. |
| 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. |