Cryptopals: Set 1 – challenge 8
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The final Cryptopals challenge in set 1 involves detecting AES when used in ECB mode. It will become a handy utility later on …
cryptopals
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Cryptopals: Set 1 – challenge 7
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Next up with Cryptopals is a challenge to decrypt AES in ECB mode. This is relatively easy in PHP!
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Cryptopals: Set 1 – challenge 6
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A return to Cryptopals means we get to break the repeating-key cipher we were working with before. Breaking crypto is fun!
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Cryptopals: Set 1 – challenge 5
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Breaking encryption is fun. Building an encryption cipher is even more so! Let’s continue our Cryptopals journey with XOR.
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Cryptopals: Set 1 – challenge 4
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Now that we know how to crack a single-byte XOR cipher, let’s expand and crack even more through Cryptopals’ next challenge.
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Cryptopals: Set 1 – challenge 3
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Next up in our Cryptopals walkthrough is some frequency analysis against simple cryptographic keys. Let’s have some fun!
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Cryptopals: Set 1 – challenge 2
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Building on our cryptopals encoding work last time, let’s introduce byte-based XOR operations.
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Cryptopals: Set 1 – challenge 1
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Challenge 1 in the cryptopals suite is to juggle between Base64 and Hex encoding of byte strings. Let’s do just that, with value objects!
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The Cryptopals challenges
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Starting today I kick off a series on the cryptopals crypto challenges, with my implementations in PHP. Feel free to join in the fun!