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 | | Abstract There is a need in the Internet community for an unencumbered encryption algorithm with a range of key sizes that can provide security for a variety of cryptographic applications and protocols. |
 | | It thus appears to be a good Adams Informational [Page 1] RFC 2144 CAST-128 Encryption Algorithms May 1997 candidate for general-purpose use throughout the Internet community wherever a cryptographically-strong, freely-available encryption algorithm is required. |
 | | 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. |
| www.rfc-editor.org /rfc/rfc2144.txt (1323 words) |
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