CTF crypto 2021-10-4 record
Basic knowledge
CBC flip attack
Introduction:
When one of our values C is obtained by the exclusive or of A and B C = A XOR B that A XOR B XOR C is obviously = 0 When we know B and C, it's easy to get the value of A A = B XOR C Therefore, A XOR B XOR C is equal to 0. With this formula, we can set our own value at the end of XOR operat ...
Posted on Mon, 04 Oct 2021 16:36:34 -0400 by gitosh
Punch in 21/9/3 [De1CTF2019]babyrsa
[De1CTF2019]babyrsa
The code given is divided into four parts:
1. Part I (p):
n = [2012961535249176549934011294318831718054876159786130084730582714151046561967053684463455824643923037165883692810306343287024570718035590719428486151090607126535240957944104810108499592396214852709737070545207057709878024628282006557371101566429199137208515701 ...
Posted on Fri, 03 Sep 2021 16:15:14 -0400 by nielsene
crypto experiment report
Cryptography experiment report
The author participated in an experimental report assignment of network attack and defense innovation practice course in freshman and primary school, which is a pure entry level
Experimental objectives
Part I
The following ciphertext is encrypted with classical password. Please identify and write the ...
Posted on Thu, 02 Sep 2021 17:25:55 -0400 by Shawazi