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Tag: Known Plaintext Attack

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Known Plaintext Attack

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Updated Apr 24, 2026
Known Plaintext Attack Challenges
ChaChaCha
chocorusk

chocorusk

Crypto
164 solves
Reused-AES
ptr-yudai

ptr-yudai

Crypto
33 solves

ChaChaCha

Daily AlpacaHackTopic: Stream CipherReleased: Jan 19, 2026

164 solves
Crypto

by

chocorusk

chocorusk

Nostalgic was hard!? It's only ChaCha20!

chachacha.tar.gz
descriptionsolveswriteups