retostaehli / cryptopals

Cryptopals

Implementation of the solutions to the Cryptopals Crypto Challenges

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Set 1: Basics

1. Convert hex to base64
2. Fixed XOR
3. Single-byte XOR cipher
4. Detect single-character XOR
5. Implement repeating-key XOR
6. Break repeating-key XOR
7. AES in ECB mode
8. Detect AES in ECB mode

Set 2: Block crypto

9. Implement PKCS#7 padding
10. Implement CBC mode
11. An ECB/CBC detection oracle
12. Byte-at-a-time ECB decryption (Simple)
13. ECB cut-and-paste
14. Byte-at-a-time ECB decryption (Harder)
15. PKCS#7 padding validation
16. CBC bitflipping attacks