NCTUCS 2013-Fall Introduction to Cryptography ...

NCTUCS 2013-Fall Introduction to Cryptography by Professor Rong-Jaye Chen.

SHA 系列的比較表
SHA series

Hash 一定要夠快而且夠亂 才不容易被破解


General Structure of Secure Hash Code


compression function

一個 Block 1024 bits 加 SHA-512 出來的 512 bits,出來就會變成原本的三倍


Birthday attack 只要 2^32 就可以找到一個 collision


  • W0~W79 共 80 個 Rounds
  • 2012 年 SHA-3 問世

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