////////////////////////////////////////////////////////////////////////////////
// Copyright 2018 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_SIGNATURE_UTIL_H_
#define COMMON_SIGNATURE_UTIL_H_

#include <string>

#include "common/hash_algorithm.h"
#include "common/status.h"

namespace widevine {
namespace signature_util {

// Generates an AES signature of |message| using |aes_key| and |aes_iv|.
// Signature is returned via |signature| if generation was successful.
// Returns a Status that carries the details of error if generation failed.
Status GenerateAesSignature(const std::string& message,
                            const std::string& aes_key,
                            const std::string& aes_iv, std::string* signature);

// Generates a RSA signature of |message| using |private_key| and
// |hash_algorithm|. Signature is returned via |sigature| if generation was
// successful. Returns a Status that carries the details of error if generation
// failed.
Status GenerateRsaSignature(const std::string& message,
                            const std::string& private_key,
                            HashAlgorithm hash_algorithm,
                            std::string* signature);

}  // namespace signature_util
}  // namespace widevine

#endif  // COMMON_SIGNATURE_UTIL_H_