src/HmacSha1.php
public function buildSignature(Request $request, Consumer $consumer, Token $token = null)
    {
        $signatureBase = $request->getSignatureBaseString();

        $parts = [$consumer->secret, null !== $token ? $token->secret : ""];

        $parts = Util::urlencodeRfc3986($parts);
        $key = implode('&', $parts);

        return base64_encode(hash_hmac('sha1', $signatureBase, $key, true));
    }
public function buildSignature(Request $request, Consumer $consumer, Token $token = null)
    {
        $signatureBase = $request->getSignatureBaseString();

        $parts = [$consumer->secret, null !== $token ? $token->secret : ""];

        $parts = Util::urlencodeRfc3986($parts);
        $key = implode('&', $parts);

        return base64_encode(hash_hmac('sha1', $signatureBase, $key, true));
    }
{@inheritDoc}