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

    padding can be one of OPENSSL_PKCS1_PADDING, OPENSSL_NO_PADDING.

    Return Values

    Returns true on success or false on failure.

    Changelog

    VersionDescription
    8.0.0private_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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