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Image of Advanced Programming in the UNIX Environment, Second Edition (Addison-Wesley Professional Computing Series)
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OpenSSL DES APIs

This post examines what support is provided by OpenSSL v1.0 for the Data Encryption Standard (DES) and provides simple examples of how to used the provided application programming interfaces. A brief overview of DES and the algorithmic implementation of DES known as Data Encryption Algorithm (DEA) is also provided.

HTML5 Canvas To PPM Serializer

This post demonstrates how to save the contents of a HTML5 canvas object to a Portable Pixel Map (PPM) encoded image file. It also discusses various gamma transfer functions including sRGB, radiance and luminance.