src/Signer/Ecdsa.php
final public function sign(string $payload, Key $key): string
    {
        return $this->converter->fromAsn1(
            $this->createSignature($key->getContent(), $key->getPassphrase(), $payload),
            $this->getKeyLength()
        );
    }
final public function sign(string $payload, Key $key): string
    {
        return $this->converter->fromAsn1(
            $this->createSignature($key->getContent(), $key->getPassphrase(), $payload),
            $this->getKeyLength()
        );
    }
{@inheritdoc}