  The Twofish Encryption Algorithm (Paperback) ISBN-13: 9780387987132 ISBN-10: 0387987134 Genres: Computers & Technology, Reference, Science & Math ?  The Twofish Encryption Algorithm a 128bit Block Cipher (Hardcover) ISBN-13: 9780471353812 ISBN-10: 0471353817 Genres: Computers & Technology, Substores ? |
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