5. Explain the DES data encryption technique with plaintext of 64 bits and keys of 56 bits. Also, describe the decryption algorithm. 6. What are the shortcomings of DES that led to the invention of AES? Make your response really precise.

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Cryptography

Cryptography is a term used in computer science to describe secure information and communication techniques that transform messages in difficult-to-decipher ways using mathematical concepts and a set of rule-based calculations known as algorithms.