17 lines
742 B
Text
17 lines
742 B
Text
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This module implements a chaining block cipher using a one
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way hash. This method of encryption is the same that is
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used by radius (RFC2138) and is also described in Applied
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Cryptography.
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Two interfaces are provided in the module. The first is
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straight block encryption/decryption the second does base64
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mime encoding/decoding of the encrypted/decrypted blocks.
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The idea is the the two sides have a shared secret that
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supplies one of the keys and a randomly generated block of
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bytes provides the second key. The random key is passed in
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cleartext between the two sides.
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An example client and server are packaged as modules with
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this module. They are used in the tests.
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