openssl_private_encrypt

(PHP 4 >= 4.0.6, PHP 5, PHP 7, PHP 8)

openssl_private_encryptEncrypts 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

padding can be one of OPENSSL_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

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