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// Copyright 2024 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef REMOTING_BASE_AUTHENTICATION_METHOD_H_
#define REMOTING_BASE_AUTHENTICATION_METHOD_H_
#include <string>
#include <string_view>
namespace remoting {
// Method represents an authentication algorithm.
enum class AuthenticationMethod {
INVALID,
// SPAKE2 PIN or access code hashed with host_id using HMAC-SHA256.
SHARED_SECRET_SPAKE2_CURVE25519,
// SPAKE2 using shared pairing secret.
PAIRED_SPAKE2_CURVE25519,
// Authentication using the SessionAuthz service, which generates the
// shared secret for SPAKE2 key exchange. This authz mode is used for Cloud
// machines and is incompatible with other forms of SessionAuthz.
CLOUD_SESSION_AUTHZ_SPAKE2_CURVE25519,
// Authentication using the SessionAuthz service, which generates the
// shared secret for SPAKE2 key exchange. This authz mode is used for Corp
// machines and is incompatible with other forms of SessionAuthz.
CORP_SESSION_AUTHZ_SPAKE2_CURVE25519,
};
// Parses a string that defines an authentication method. Returns
// Method::INVALID if the string is invalid.
extern AuthenticationMethod ParseAuthenticationMethodString(
std::string_view value);
// Returns string representation of |method|.
extern std::string AuthenticationMethodToString(AuthenticationMethod method);
} // namespace remoting
#endif // REMOTING_BASE_AUTHENTICATION_METHOD_H_
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