// Calculate signature.
	newSignature := getSignature(signingKey, stringToSign)

	return newSignature
}

// getTrailerChunkSignature - get trailer chunk signature.
func (cr *s3ChunkedReader) getTrailerChunkSignature() string {
	hashedChunk := hex.EncodeToString(cr.chunkSHA256Writer.Sum(nil))

	// Calculate string to sign.
	alg := signV4ChunkedAlgorithmTrailer + "\n"