Educational SPN mini cipher builder — experiment with S-box substitution, linear diffusion, and key mixing.
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Oct 6, 2025 - JavaScript
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modern-cryptography
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入力された文字列が MD5 / SHA-1 / SHA-256 などのどのハッシュ形式かを推測する。
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Jun 16, 2025 - JavaScript
Educational hash explorer with bit-level visualization, avalanche effect demo, and historical collision samples.
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Sep 4, 2025 - JavaScript
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