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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク VEST ： ウィキペディア英語版 VEST VEST (Very Efficient Substitution Transposition) ciphers are a set of families of general-purpose hardware-dedicated ciphers that support single pass authenticated encryption and can operate as collision-resistant hash functions designed by Sean O'Neil, Benjamin Gittins and Howard Landman. VEST cannot be implemented efficiently in software. VEST is based on a balanced T-function that can also be described as a bijective nonlinear feedback shift register with parallel feedback (NLPFSR) or as a substitution-permutation network, which is assisted by a non-linear RNS-based counter. The four VEST family trees described in the cipher specification are VEST-4, VEST-8, VEST-16, and VEST-32. VEST ciphers support keys and IVs of variable sizes and instant re-keying. All VEST ciphers release output on every clock cycle. All the VEST variants are covered by European Patent Number (EP 1820295(B1) ), owned by Synaptic Laboratories. VEST was a Phase 2 Candidate in the eSTREAM competition in the hardware portfolio, but was not a Phase 3 or Focus candidate and so is not part of the final portfolio. ==Overview== 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「VEST」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.