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Packet Information


Message ID:0x0C
  
Message Name:BNLS_CDKEY_EX
  
Direction:Client -> Server (Sent)
  
Used By:Starcraft Broodwar, Diablo II, Warcraft II, Warcraft III: The Frozen Throne, Starcraft, Starcraft Japanese, Diablo, Warcraft III
  
Format:(DWORD) Cookie
(BYTE) Number of CD-keys to encrypt
(DWORD) Flags
(DWORD) [] Server session key(s), depending on flags
(DWORD) [] Client session key(s), depending on flags
(STRING) [] CD-keys. No dashes or spaces
  
Remarks:The Cookie has no special meaning to the server and will simply be echoed to the client in the response. The client can use multiple types of CD-keys in the same packet. The number of CD Keys to encrypt should be between 1 and 32.

The flags may be zero, or any bitwise combination of the defined flags.
Currently, the following flags are defined:

0x01: CDKEY_SAME_SESSION_KEY
0x02: CDKEY_GIVEN_SESSION_KEY
0x04: CDKEY_MULTI_SERVER_SESSION_KEYS
0x08: CDKEY_OLD_STYLE_RESPONSES

View consts: [pas cpp vb]

CDKEY_SAME_SESSION_KEY (0x01):
This flag specifies that all the returned CD-keys will use the same client session key. When used in combination with CDKEY_GIVEN_SESSION_KEY (0x02), a single client session key is specified immediately after the server session key(s). When used without CDKEY_GIVEN_SESSION_KEY (0x02), a client session key is not sent in the request, and the server will create one.
When not used, each CD-key gets its own client session key. This flag has no effect if the amount of CD-keys to encrypt is 1.

CDKEY_GIVEN_SESSION_KEY (0x02):
This flag specifies that the client session keys to be used are specified in the request. When used in combination with CDKEY_SAME_SESSION_KEY (0x01), a single client session key is specified immediately after the server session key(s). When used without CDKEY_SAME_SESSION_KEY (0x01), an array of client session keys (as many as the amount of CD-keys) is specified. When not used, client session keys are not included in the request.

CDKEY_MULTI_SERVER_SESSION_KEYS (0x04):
This flag specifies that each CD-key has its own server session key. When specified, an array of server session keys (as many as the amount of CD-keys) is specified. When not specified, a single server session key is specified.
This flag has no effect if the amount of CD-keys to encrypt is 1.

CDKEY_OLD_STYLE_RESPONSES (0x08):
Specifies that the response to this packet is a number of BNLS_CDKEY (0x01) responses, instead of a BNLS_CDKEY_EX (0x0c) response. The responses are guaranteed to be in the order of the CD-keys' appearance in the request. Note that when this flag is specified, the Cookie cannot be echoed. (It must still be included in the request.)



Note: When using Lord of Destruction, two CD-keys are encrypted, and they must share the same client session key. There are several ways to do this. One way is to provide both CD-keys in this packet, using the flag CDKEY_SAME_SESSION_KEY (0x01). Another way is to use BNLS_CDKEY (0x01) to encrypt the first CD-key, then use this packet with the flag CDKEY_GIVEN_SESSION_KEY (0x02) to encrypt the second CD-key with the same client session key.
  
Related:[0x01] BNLS_CDKEY (C->S), [0x0C] BNLS_CDKEY_EX (S->C)

User Comments


For detailed questions and discussion, visit the Battle.net Research Forum

Jailout2000
Apr 04, 2010
07:56 AM

For the n00bs: The Client session key is the Client token, and the Server session key is the Server token. Use your brain now, c'mon.

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