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61 lines
2.3 KiB
61 lines
2.3 KiB
4 years ago
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//====== Copyright Valve Corporation, All rights reserved. ====================
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//
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// Backend functions to generate authorization tickets for steam datagram
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//
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//=============================================================================
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#ifndef STEAMDATAGRAM_TICKETGEN_H
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#define STEAMDATAGRAM_TICKETGEN_H
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#ifdef _WIN32
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#pragma once
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#endif
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// Import some common stuff that is useful by both the client
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// and the backend ticket-generating authority.
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#include "steamdatagram_tickets.h"
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struct SteamDatagramSignedTicketBlob
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{
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int m_sz;
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uint8 m_blob[ k_cbSteamDatagramMaxSerializedTicket ];
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};
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/// Initialize ticket generation with an Ed25519 private key.
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/// See: https://ed25519.cr.yp.to/
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///
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/// Input buffer will be securely wiped.
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///
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/// You can generate an Ed25519 key using OpenSSH:
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///
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/// ssh-keygen -t ed25519
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///
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/// The private key should be a PEM-like block of text
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/// ("-----BEGIN OPENSSH PRIVATE KEY-----").
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/// Private keys encrypted with a password are not supported.
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///
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/// In order for signatures using this key to be accepted by the relay network,
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/// you need to send your public key to Valve. This key should be on a single line
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/// of text that begins with "ssh-ed25519". (The format used in the .ssh/authorized_keys
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/// file.)
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STEAMDATAGRAM_TICKET_INTERFACE bool SteamDatagram_InitTicketGenerator_Ed25519( void *pvPrivateKey, size_t cbPrivateKey );
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/// Serialize the specified auth ticket and attach a signature.
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/// Returns false if you did something stupid like forgot to load a key.
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/// Will also fail if your ticket is too big. (Probably because you
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/// added too many extra fields.)
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STEAMDATAGRAM_TICKET_INTERFACE bool SteamDatagram_SerializeAndSignTicket( const SteamDatagramRelayAuthTicket &ticket, SteamDatagramSignedTicketBlob &outBlob );
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//
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// Legacy / deprecated
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//
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/// Initialize ticket generation with an RSA private key. You can either
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/// pass a PEM block ("-----BEGIN PRIVATE KEY-----"), or binary PKCS#8 DER.
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/// Input buffer will be securely wiped.
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STEAMDATAGRAM_TICKET_INTERFACE bool SteamDatagram_InitTicketGenerator_RSA_deprecated( void *pvPrivateKey, size_t cbPrivateKey );
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/// Generate a signature for legacy support
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STEAMDATAGRAM_TICKET_INTERFACE bool SteamDatagram_SerializeAndSignTicket_deprecated( const SteamDatagramRelayAuthTicket &ticket, SteamDatagramSignedTicketBlob &outBlob );
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#endif // STEAMDATAGRAM_TICKETGEN_H
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