Tag Archives: Digital Rights Management

A rudimentary OpenDRM

We all know that Open Source was to free ideas from incarceration, not deprive programmers of income. Here is a rudimentary “OpenDRM” scheme. Step 1 (Python script) Comments Updated Apr 22 Step 2 (Python script) – One possible “salt3” might … Continue reading

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Illustration of Watermarking (Lossy Vigenere)

Simon Singh demonstrated a lossless Vigenere in his book, “The Code Book.” I learned it differently in my youth, under the moniker “Rogue’s Gallery.” This (symmetric) Vigenere is “lossy,” and replaces lost information with the character “z.” The placement of … Continue reading

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