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1. kat (boneidol)'s status on Monday, 11-Nov-2013 14:50:19 EST kat

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   https://www.coursera.org/course/crypto course is starting again in January ... I crammed and passed it in 2 weeks. I quite enjoyed it, and got a good understanding of the !crypto primitives I use every day... Because I crammed it missed out some of the optional programming questions. So I may well do it again.
   • kat (boneidol)'s status on Monday, 11-Nov-2013 14:51:49 EST kat

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     Here's an example ...."An attacker intercepts the following ciphertext (hex encoded): 20814804c1767293b99f1d9cab3bc3e7 ac1e37bfb15599e5f40eef805488281d He knows that the plaintext is the ASCII encoding of the message "Pay Bob 100$" (excluding the quotes). He also knows that the cipher used is CBC encryption with a random IV using AES as the underlying block cipher. Show that th…
   • kat (boneidol)'s status on Monday, 11-Nov-2013 14:57:43 EST kat

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     This is the answer ... https://indy.im/file/boneidol-20131102T162730-nd6wqll.jpeg Though there is a stupid mistake earlier on the page