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The License System Response
The license system first attempts to authenticate the message digest that the
application sends as the challenge by performing the following steps:
- Look up the secret stored within the license.
- Compute a message digest with the MD4 Message-Digest Algorithm supplied by RSA
Data Security, Inc.
- Compare this message digest to the one passed by the application initiating
the challenge.
- Compute another message digest and passes it in the LS_MSG_DIGEST structure as the challenge response back to the application. The result of
this encryption scheme is unique. For additional information about the format of
this message digest, see LS_CHALLDATA.
The server cannot respond correctly to the challenge if it does not have the
secrets associated with a particular license. The license system does not return
a challenge response if either a license request or an update is unsuccessful.
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