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SM4

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SM4

Chinese national standard block cipher (GB/T 32907-2016, ISO/IEC 18033-3, RFC 8998). Mandatory in Chinese internet and financial infrastructure; now part of TLS 1.3 cipher suites. 128-bit block, 128-bit key, 32-round SPN with a single S-box and linear transform.

Securesymmetric

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Imported traces are validated and replayed locally. They never run a cipher operation automatically.

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XOR Cipher
Deprecated

A simple stream cipher performing byte-wise XOR operations between plaintext and key.

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One-Time Pad (OTP)
Secure

An unbreakable cipher when used with a truly random, single-use key of equal length to the plaintext.

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DES
Broken

Data Encryption Standard. A legacy 64-bit block cipher utilizing a 56-bit key size.

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