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Archive for Security

Webcam Surveillance with motion detection algorithm

A homemade/DIY security system using a webcam, a low power server and a surveillance software.

Linear Pseudorandom number generator (PRNG)

Understand what a random number is , how important the chaos is, and how to understand a sequence of numbers that seems to have no meaning.

Write on the Android Read-only file system

Hot news: You can change the android partitions to Read-Write so you can upload new file versions (eg. permissions.xml) .

Bluetooth BlueJacking

A short article on BlueJacking, which is sending unsolicited messages remotely to Bluetooth enabled devices.

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