streamingContentEncoding      = "aws-chunked"
	awsTrailerHeader              = "X-Amz-Trailer"
	trailerKVSeparator            = ":"
)

// getChunkSignature - get chunk signature.
// Does not update anything in cr.
func (cr *s3ChunkedReader) getChunkSignature() string {
	hashedChunk := hex.EncodeToString(cr.chunkSHA256Writer.Sum(nil))

	// Calculate string to sign.
	alg := signV4ChunkedAlgorithm + "\n"