Hasty Pudding cipher
The Hasty Pudding cipher (HPC) is a variable-block-size block cipher designed by Richard Schroeppel, which was an unsuccessful candidate in the competition for selecting the U.S. Advanced Encryption Standard (AES). It has a number of unusual properties for a block cipher: its input block size and key length are variable, and it includes an additional input parameter called the "spice" for use as a secondary, non-secret key. The Hasty Pudding cipher was the only AES candidate designed exclusively by U.S. cryptographers.
| General | |
|---|---|
| Designers | Richard Schroeppel |
| First published | June 1998 |
| Cipher detail | |
| Key sizes | Variable |
| Block sizes | Variable |
The Hasty Pudding cipher is in the public domain.
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