- interencdec (easy)
- Mod 26 (easy)
- The Numbers (easy)
- 13 (easy)
- rsa_oracle (medium)
- Custom encryption (medium)
- C3 (medium)
- rotation (medium)
- ReadMyCert (medium)
- HideToSee (medium)
- Vigenere (medium)
- transposition-trial (medium)
- substitution2 (medium)
- substitution1 (medium)
- substitution0 (medium)
- rail-fence (medium)
- morse-code (medium)
- credstuff (medium)
- basic-mod2 (medium)
- basic-mod1 (medium)
- spelling-quiz (medium)
- Mini RSA (medium)
- Mind your Ps and Qs (medium)
- Dachshund Attacks (medium)
- New Caesar (medium)
- No Padding, No Problem (medium)
- Easy Peasy (medium)
- Pixelated (medium)
- caesar (medium)
- Easy1 (medium)
- Mr-Worldwide (medium)
- waves over lambda (medium)
- Flags (medium)
- Tapping (medium)
- john_pollard (medium)
- la cifra de (medium)
- flag_printer (hard)
- SRA (hard)
- PowerAnalysis: Warmup (hard)
- PowerAnalysis: Part 2 (hard)
- PowerAnalysis: Part 1 (hard)
- Very Smooth (hard)
- Sum-O-Primes (hard)
- Sequences (hard)
- NSA Backdoor (hard)
- college-rowing-team (hard)
- corrupt-key-2 (hard)
- triple-secure (hard)
- XtraORdinary (hard)
- corrupt-key-1 (hard)
- New Vignere (hard)
- Double DES (hard)
- Clouds (hard)
- Compress and Attack (hard)
- It's Not My Fault 1 (hard)
- Scrambled: RSA (hard)
- b00tl3gRSA3 (hard)
- AES-ABC (hard)
- miniRSA (hard)
- rsa-pop-quiz (hard)
- b00tl3gRSA2 (hard)