Learn visual cryptography (VSS/VSSS): split an image into two noise-like shares and visually decode.
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Updated
Sep 19, 2025 - HTML
Learn visual cryptography (VSS/VSSS): split an image into two noise-like shares and visually decode.
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。
In this course, learn the fundamentals of cryptography, including symmetric and asymmetric encryption, hashing, digital signatures, and key exchange protocols. Master essential cryptographic concepts and tools through hands-on practice.
Educational SPN mini cipher builder — experiment with S-box substitution, linear diffusion, and key mixing.
Educational hash explorer with bit-level visualization, avalanche effect demo, and historical collision samples.
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