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Data Encoding
CryptographyData EncodingQR Code
Anatomy of a QR Code: Reed-Solomon Error Correction and Matrix Encoding
A deep mathematical exploration of ISO/IEC 18004 QR codes, detailing Galois Field GF(2^8) arithmetic, generator polynomials, Reed-Solomon error correction, and in-browser matrix rendering.
PetexSpace
CryptographyData EncodingBase32
Base32 vs Base64: Structural Differences, Padding Rules, and Cryptographic Usage
A deep technical specification of RFC 4648 binary-to-text encodings, contrasting Base32 and Base64 bitwise packing mechanics, padding matrices, alphabet ergonomics, and in-browser execution.
PetexSpace