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IAPM (mode) : ウィキペディア英語版
IAPM (mode)

Integrity Aware Parallelizable Mode (IAPM) is a mode of operation for cryptographic block ciphers. As its name implies, it allows for a parallel mode of operation for higher throughput.
==Encryption and authentication==

IAPM was the first cipher mode created to provide both authentication and privacy in a single pass. Previously, two passes would be required to achieve both benefits: for example the first pass using DES in CBC mode and the second pass authenticating with HMAC-MD5. IAPM allows for a single pass achieving both authentication and privacy.
OCB mode also provides authentication and privacy in a single pass, but both have been supplanted by Galois/Counter Mode.
IAPM mode was designed by Charanjit Jutla. The OCB inventor, Phillip Rogaway, gives credit to Jutla for inventing the single-pass technique.〔(Rogaway's OCB FAQ crediting Jutla )〕

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
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