DATA ENCRYPTION STANDARD (DES)
The Data Encryption Standard (DES) is a symmetric-key block cipher published by the National Institute of Standards and Technology.
Today NIST has recommand the use of Triple DES as well as Advance Encryption Standard(AES) as DES which was published in January 1977 is no longer secure.
DES is a block cipher. It takes in 64-bit plaintext and creates a 64-bit ciphertext on the Encryption Side. It takes a 64-bit ciphertext and create a 64-bit plaintext on the decryption side.
The same key of a 56-bit cipher key is used for encryption and decryption.
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The short description is accurate and very useful. I wanted to learn all about this concept. I do have read somewhere that this technique is insecure as compared to advanced data encryption standard. What is the reason behind it.
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