FPGA implementation(s) of a scalable encryption algorithm
IEEE Transactions on Very Large Scale Integration (VLSI) Systems
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This paper presents FPGA (Field Programmable Gate Array) implementations of ICEBERG, a block cipher designed for reconfigurable hardware implementations and presented at FSE 2004. All its components are involutional and allow very efficient combinations of encryption/decryption. The implementations proposed also allow changing the key and Encrypt/Decrypt (E/D) mode for every plaintext, without any performance loss. In comparison with other recent block ciphers, the implementation results of ICEBERG show a significant improvement of hardware efficiency. Moreover, the key and E/D agility allows considering new encryption modes to counteract certain side-channel attacks.