Code a Week
Here’s Challenge #12 for November 8, 2017.
Today, I wanted to learn about homophonic substitution ciphers. These ciphers aim to thwart frequency analysis by assigning multiple ciphertext symbols to each plaintext symbol. 334 more words
1 month ago
Another day, another challenge.
Today’s blog post will explore solving the “Substitute” challenge inside of the PicoCTF.
Let’s get started.
Clicking on the challenge we see the following: 97 more words
5 months, 3 weeks ago
Cryptanalysis is the study of ciphers or ciphertexts to find weaknesses in them, which will let/permit the attacker to retrieve the plaintext from the ciphertext (without necessarily knowing the key). 445 more words
10 months ago