README
1 This module implements a chaining block cipher using a one
2 way hash. This method of encryption is the same that is
3 used by radius (RFC2138) and is also described in Applied
4 Cryptography.
5
6 Two interfaces are provided in the module. The first is
7 straight block encryption/decryption the second does base64
8 mime encoding/decoding of the encrypted/decrypted blocks.
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10 The idea is the the two sides have a shared secret that
11 supplies one of the keys and a randomly generated block of
12 bytes provides the second key. The random key is passed in
13 cleartext between the two sides.
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15 An example client and server are packaged as modules with
16 this module. They are used in the tests.
17