What are SecretKeys

I'm learning new things everyday about Habbo.SWF files and I found these

I got the SecretKeys for the RELEASE63-201312201124-496245659

Code:

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Where do I put them in my server

SecretKey: 45591383971111946439431988025685017900773062738651343793489780142723382208598
SecretKeyComposer: b38f54271b83206af214416f5548f043601c37ae4ba6ca455d99918be40d9567fac35d7fa52e9626432093d526c3dbd616d584c27bee7619557434bc3682da70356ced5cb8e698c9cfa0d39251a5cab7af80f6364a3ed96e9ae4e5c6b2193df6d298787308616bac6d9244b76328e0cca2a740121cd8bc8db016e84ee1b0fb83

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and some of the packetID

Code:

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CheckRelease: 4000
InitCrypto: 246
Variables: 1987
ClientAuthOk:  1984
HabboClub: 493
ID: 62
SSOTICKET: 3214
SecretInitCrypto: 1e21455806fab874ca9f33c246dbb931
SecretKeyComposer: 2240

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What is the SecretInitCrypto because it's not a packetID