Hawkynt

Cartman-2X (DarkCrypt)

Block cipher from the DarkCrypt Total Commander plugin. 1024-bit key, 128-bit block. The key seeds 64 key-dependent derangement S-boxes (generated by running the cipher in OFB mode over a fixed bootstrap S-box) plus small index/rotation tables driving an 8x8-iteration substitution/ARX round function.

Properties

Property Value
Category Block Ciphers
Sub-category Block Cipher
Security status 🎓 Educational Only
Complexity Advanced
Inventor Alexander Myasnikov (DarkCrypt / Zarya project)
Year 2013
Origin 🇷🇺 Russia
Source algorithms/block/darkcrypt-cartman2x.js

Parameters

Parameter Supported values
Key sizes 128 bytes (1024 bits)
Block sizes 16 bytes (128 bits)

Security

Status: 🎓 Educational Only

Known vulnerabilities

Issue Description Mitigation
Non-standard / unanalyzed Proprietary construction with key-dependent S-boxes; never subjected to public cryptanalysis. Not recommended for real use. Use AES or another vetted cipher.

Documentation

Test vectors

3 vectors ship with this algorithm and run in the test suite. Byte values are hexadecimal.

Vector 1 — DarkCrypt Cartman2x - zero key/plaintext

Field Value
key 00000000000000000000000000000000 00000000000000000000000000000000 00000000000000000000000000000000 00000000000000000000000000000000 00000000000000000000000000000000 00000000000000000000000000000000 00000000000000000000000000000000 00000000000000000000000000000000
input 00000000000000000000000000000000
expected 43cf861e141491ee0baf5f0a7f9838e1

Vector 2 — DarkCrypt Cartman2x - incrementing key/plaintext

Field Value
key 000102030405060708090a0b0c0d0e0f 101112131415161718191a1b1c1d1e1f 202122232425262728292a2b2c2d2e2f 303132333435363738393a3b3c3d3e3f 404142434445464748494a4b4c4d4e4f 505152535455565758595a5b5c5d5e5f 606162636465666768696a6b6c6d6e6f 707172737475767778797a7b7c7d7e7f
input 000102030405060708090a0b0c0d0e0f
expected 95924004119c03a401ccf3bc3fb66a6a

Vector 3 — DarkCrypt Cartman2x - shifted incrementing key/plaintext

Field Value
key 0102030405060708090a0b0c0d0e0f10 1112131415161718191a1b1c1d1e1f20 2122232425262728292a2b2c2d2e2f30 3132333435363738393a3b3c3d3e3f40 4142434445464748494a4b4c4d4e4f50 5152535455565758595a5b5c5d5e5f60 6162636465666768696a6b6c6d6e6f70 7172737475767778797a7b7c7d7e7f80
input 101112131415161718191a1b1c1d1e1f
expected 07d2ff9135ad9a8520b4a6ba580a90ae

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