////////////////////////////////////////////////////////////////////////////////
// Copyright 2016 Google LLC.
//
// This software is licensed under the terms defined in the Widevine Master
// License Agreement. For a copy of this agreement, please contact
// widevine-licensing@google.com.
////////////////////////////////////////////////////////////////////////////////

#ifndef COMMON_SHA_UTIL_H_
#define COMMON_SHA_UTIL_H_

#include <string>

#include <cstdint>

namespace widevine {

// Calculates SHA1 hash.
std::string Sha1_Hash(const std::string& message);

// Calculates SHA256 hash.
std::string Sha256_Hash(const std::string& message);

// Calculate SHA512 hash.
std::string Sha512_Hash(const std::string& message);

// Generates a UUID as specified in ITU-T X.667 ch. 14, SHA-1 name-based,
// 16-byte binary representation. Name_space is a GUID prefix; name is a unique
// name in the namespace.
std::string GenerateSha1Uuid(const std::string& name_space,
                             const std::string& name);

}  // namespace widevine

#endif  // COMMON_SHA_UTIL_H_