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Binary Sempahore
Implemented binary semaphore in Minix 3. Minix 3 is a micro-kernel operating system.
Most of the process pass information among themselves using application IPC. This often result in race condition. To prevent it and provide synchronization, semaphores, first proposed by Dikstras, is used...
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Advanced Encryption Standard (AES)
Advanced Encryption Standard, a symmetric key algorithm, implemented in C++. All the parties use the same key for encryption and decryption. It has superseded DES, another symmetric key algorithms...
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Data Encryption Standard (DES)
Data Encryption Standard, a symmetric key algorithm, implemented in C++. All the parties use the same key for encryption and decryption. Look at the diagram below.
Here, m is message which is passed through an encrypted function E along with key K. The resultant is a unintelligent gibberish cipher. The cipher is decoded again using the same key to produce plain message...
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