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The original DES algorithm, I believe, did only two things bit shifting and bit substituion. It di these operations repeadtley and on a very nonlinear fashion. I guess kinda like putting Scrabble letters in a bag and shaking them up. There are a couple variants I know of. Lucifer, which was developed by IBM in the 70s. And then there is Enigma.
What else can I help you with?
Is Dijkstra's algorithm a greedy algorithm?
Yes, Dijkstra's algorithm is a greedy algorithm because it makes decisions based on the current best option without considering future consequences.
What is the fastest algorithm for finding the shortest path in a graph?
The fastest algorithm for finding the shortest path in a graph is Dijkstra's algorithm.
What is the best search algorithm to use for a sorted array?
The best search algorithm to use for a sorted array is the binary search algorithm.
What does the word algorithm mean today?
An algorithm is the process by which you solve a problem
Is quicksort a stable sorting algorithm?
No, quicksort is not a stable sorting algorithm.
What authentication also uses the DES algorithm?
Message
What authentication also uses DES algorithm?
Message
What are the difference between DES and RSA algorithm?
DES is a symmetric cryptographic algorithm, while RSA is an asymmetric (or public key) cryptographic algorithm. Encryption and decryption is done with a single key in DES, while you use separate keys (public and private keys) in RSA. DES uses 56-bit keys for encryption while RSA uses 2600-bits of KEY
Which algorithm has the smallest key space?
DES Data Encryption Standard 56 bit
What is Difference between DES and RSA algorithm?
1. RSA comes under Asymmetric and DES comes under Symmetric 2. RSA is more secure than DES.
Different types Library of computer security related algorithm?
HMAC RSA SHA AES DES
What are the encryption algorithms used in ATM?
fot the past 25 years single des algorithm was used. But now triple des is used in atm cards for the encryption and decryption.
What is are the time complexity or space complexity of DES algorithm?
time complexity is 2^57..and space complexity is 2^(n+1).
Why the DES is slower in software?
I can only guess that you ask about the performance of the DES algorithm when implemented in software as opposed to hardware. Any algorithm that can be economically implemented in hardware will perform faster in hardware than software by orders of magnitude in the general case. Encryption algorithms such as DES are often based on a shift-combine-shift sequence, which is fairly easy to implement in hardware, but can take considerable processing time when implemented in software.
Why the DES is currently considered insecure?
DES is now considered to be insecure for many applications. This is chiefly due to the 56-bit key size being too small; in January, 1999, distributed.net and the Electronic Frontier Foundation collaborated to publicly break a DES key in 22 hours and 15 minutes (see chronology). There are also some analytical results which demonstrate theoretical weaknesses in the cipher, although they are infeasible to mount in practice. The algorithm is believed to be practically secure in the form of Triple DES, although there are theoretical attacks. In recent years, the cipher has been superseded by the Advanced Encryption Standard (AES). Furthermore, DES has been withdrawn as a standard by the National Institute of Standards and Technology (formerly the National Bureau of Standards).In some documentation, a distinction is made between DES as a standard and DES the algorithm which is referred to as the DEA (the Data Encryption Algorithm). When spoken, "DES" is either spelled out as an abbreviation (/ˌdiːˌiːˈɛs/), or pronounced as a one-syllable acronym (/ˈdɛz/).
What is advanced encryption standard?
AES is an encryption algorithm that is largely used in a lot of places where security is a must. The algorithm is based on Rijndael (named after the creators) which had the winning design when the US government sent out an invite for people to create secure algorithms that would replace DES.
What is advanced data encryption standard?
AES is an encryption algorithm that is largely used in a lot of places where security is a must. The algorithm is based on Rijndael (named after the creators) which had the winning design when the US government sent out an invite for people to create secure algorithms that would replace DES.
