Random Wits

Life is too short for a diary

$ random wits
├── tags

├── bookshelf

├── resources

├── quotes

├── habits

└── about




Posts Tagged “des”

Tue 21 Aug 2012

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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