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| | [No title] (Site not responding. Last check: 2007-10-20) |
 | | Variable Keysize The CAST-128 encryption algorithm has been designed to allow a key size that can vary from 40 bits to 128 bits, in 8-bit increments (that is, the allowable key sizes are 40, 48, 56, 64,..., 112, 120, and 128 bits. |
 | | Therefore, it will likely be sufficient for most implementations to support some subset of only these four sizes. |
 | | This cipher appears to have cryptographic strength in accordance with its keysize (128 bits) and has very good encryption / decryption performance: 3.3 MBytes/sec on a 150 MHz Pentium processor. |
| www.ietf.org /rfc/rfc2144.txt (1323 words) |
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