Signer

SomehowDigital\ImgProxy\Signer

SignerInterface

interface SignerInterface
{
    public function sign(string $value): string;
}

Returns the signature for the path, which is passed with a leading /. An empty signature is replaced by the _ placeholder.

Signer

new Signer(string $key, string $salt)

Computes the HMAC-SHA256 of salt and path with the key, encoded as URL-safe Base64 without padding. $key and $salt are hexadecimal. Anything else throws an InvalidArgumentException.