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Scrambled: RSA
Published: April 2, 2026
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Useful tools for Cryptography
- ROT / Caesar CipherDecode Caesar-shifted and ROT-encoded text. Drag the shift slider or scan all 26 rotations at once.
- Base64 & Base32 DecoderDecode Base64 and Base32 strings with auto-detection. Multi-layer mode unwraps nested encodings automatically.
- XOR CipherXOR-decrypt hex or text ciphertext with a known key, or brute-force the single-byte key automatically.
- Vigenère CipherEncrypt or decrypt text with the Vigenère polyalphabetic substitution cipher using a keyword.
More Cryptography
- CryptographyEasy
Mod 26
Decode a ROT13-encoded string by shifting each letter 13 positions in the alphabet, demonstrating the symmetric nature of this cipher.
- CryptographyMedium
Dachshund Attacks
Wiener's attack on RSA with small d. Use the owiener Python library to recover d and decrypt.
- CryptographyMedium
Easy Peasy
OTP reuse attack: send 40000 known-plaintext bytes to wrap the key offset back to 0, then XOR to recover the flag.