![]() ![]() Hexadecimal, or base 16 numbers, are made up of four bits. ![]() The basis of DES is bits, that is, binary numbers - i.e., 0s and 1s. Developed in the 1970s, Lucifer was one of the earliest block ciphers.Īn basic look at how DES as a block cipher works by breaking your input down into 64-bit blocks and encrypting each block using a 56-bit key + 8 parity bits. DES is based on an earlier cipher by cryptographer Horst Feistel, called Lucifer. So, what is DES? The data encryption standard, or DES, is an encryption algorithm that converts plaintext into blocks then uses a key to convert it to ciphertext. What Is the DES Algorithm? A Definition of DES Encryption Nowadays, it has fallen out of use due to technological developments making it an increasingly insecure encryption method. In times past, the data encryption standard was used to encrypt online communication. Something very similar has happened in the cryptography space. One day, bam! The kid knows how to spell “C-H-O-C-O-L-A-T-E.” The secret code no longer serves its purpose. Unfortunately for parents, as their child becomes older, the code stops working. If we think about the most basic form of cipher, we might think of the “secret” conversation two parents have by spelling out words they don’t want their child to hear. What is DES encryption? In a nutshell, the data encryption standard a type of encryption cipher, meaning a way to disguise information from unauthorized parties. But what is DES encryption exactly, and what were the reasons behind its discontinuation? For around 30 years, the DES algorithm ruled the cryptography world as the go-to encryption algorithm. The data encryption standard (DES) was endorsed by the National Security Agency (NSA) from 1974 to 2002. ![]()
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