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My solutions to the Matasano Crypto Challenges in Java
This project forked from theapadayo/cryptopals
My solutions to the Matasano Crypto Challenges in Java
These are my solutions to the matasano crypto challenges (cryptopals.com). They are unlikely to be fully correct at first and in no way is it the best way to do these things. Don't cheat and just look at the answers. Try it first and use these for help when you get stuck on something. Progress Set1 - Complete (java com.cryptopals.sets.Set1) 1. Hex To Base64 - Complete 2. Fixed XOR - Complete 3. Single Byte XOR - Complete 4. Detect Single Byte XOR - Complete 5. Repeating Key XOR - Complete 6. Break Repeating Key XOR - Complete 7. AES in ECB Mode - Complete 8. Detect AES in ECB Mode - Complete Set2 - Complete 9. Implement PKCS#7 Padding - Complete 10. Implement CBC Mode - Complete 11. An ECB/CBC detection Oracle - Complete 12. Byte at a time ECB Decryption (simple) - Complete 13. ECB cut and paste - Complete 14. Byte at a time ECB decryption (harder) - Complete 15. PKCS#7 padding validation - Complete 16. CBC bitflipping attacks - Complete Set3 - Incomplete 17. The CBC padding Oracle - Complete 18. Implement CTR, the stream cipher mode - Complete 19. Break fixed-nonce CTR mode using substitions - Complete 20. Break fixed-nonce CTR statistically - Complete 21. Implement the MT19937 Mersenne Twister RNG - Complete 22. Crack an MT19937 seed - Complete 23. Clone an MT19937 RNG from its output - Complete 24. Create the MT19937 stream cipher and break it Set4 - Incomplete 25. Break "random access read/write" AES CTR - Complete 26. CTR bitflipping - Complete 27. Recover the key from CBC with IV=Key - Complete 28. Implement a SHA-1 keyed MAC - Complete 29. Break a SHA-1 keyed MAC using length extension 30. Break an MD4 keyed MAC using length extension 31. Implement and break HMAC-SHA1 with an artificial timing leak 32. Break HMAC-SHA1 with a slightly less artificial timing leak Set5 - Unattempted Set6 - Unattempted
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