(PECL rnp >= 0.1.1)
rnp_ffi_set_pass_provider — Set password provider callback function
Sets password provider function. This function can ask for the password on a standard input (if PHP script is executed in a command line environment), display GUI dialog or provide password in any other possible ways. Requested passwords are used to encrypt or decrypt secret keys or perform symmetric encryption/decryption operations.
ffiThe FFI object returned by rnp_ffi_create.
password_callbackThe function that is to be called for every password request. It has the following signature:
$key_fp - The key fingerprint, if any. Can be empty.$pgp_context - String describing why the key is being requested.$password - Password string reference where provided password should be stored to.true if password was successfully set o false in caso di fallimento.
Example #1 simple callback function example
<?php
function password_callback(string $key_fp, string $pgp_context, string &$password)
{
$password = "password";
return true;
}
$ffi = rnp_ffi_create('GPG', 'GPG');
rnp_ffi_set_pass_provider($ffi, 'password_callback');