SMSG AUTH CHALLENGE
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SMSG_AUTH_CHALLENGE is a World Packet that initiates the connection between the client and the world server.
It is one of only two world packets with unencrypted headers, the other being CMSG_AUTH_SESSION.
| Offset | Size / Endianness | Type | Name | Description |
|---|---|---|---|---|
| 0x0 | 2 / Big | uint16 | size | Size of the packet including the opcode field. Always 6. |
| 0x2 | 2 / Little | uint16 | opcode | Opcode for the packet. Determines the structure of the body. Always 0x1EC. |
| Offset | Size / Endianness | Type | Name | Description |
|---|---|---|---|---|
| 0x0 | 4 / Little | uint32 | server_seed | Used for calculation proving that client knows session key. |