Technology

Difference between DES (Data Encryption Standard) and AES (Advanced Encryption Standard)

Main Difference

Data Encryption Standard becomes known as a common standard used for encryption of data around the world and forms a secret key cryptography that only has one key for the use of decryption. Advanced Encryption Standard becomes known as an exceptional standard employed around the world by the government of the United States to safeguard its secrets.

Comparison Chart

Basis of DistinctionData Encryption StandardAdvanced Encryption Standard
DefinitionA common standard used for encryption of data around the world and forms a secret key cryptography that only has one key for the use of decryption.An exceptional standard employed around the world by the government of the United States to safeguard its secrets.
NatureUsed by different companies and software to safeguard transmit of data.Used by the Government of the United States to safeguard its secrets.
LearningAnyone can learn and tutorials available.Few people able to get access and know the formulation.
Virtual SizeSize of 128 bits, and a key size of 128, 192, or 256 bits.Length of 56 bits since 8 of the 64 bits of the key

Data Encryption Standard

Data Encryption Standard becomes known as a common standard used for encryption of data around the world and forms a secret key cryptography that only has one key for the use of decryption. DES is a usage of a Feistel Cipher. It utilizes 16 round Feistel structure. The square size is 64-bit. However, key length is 64-bit, DES has a successful key length of 56 bits since 8 of the 64 bits of the key not utilized by the encryption calculation. The production of an NSA-endorsed encryption standard at the same time brought about its speedy universal selection and across the board scholastic investigation. Contentions emerged out of characterized plan components, a short key length of the symmetric-key piece figure outline, and the contribution of the NSA, supporting doubts about an indirect access. The critical scholarly investigation the calculation gotten after some time prompted the cutting edge comprehension of square figures and their cryptanalysis. DES works by utilizing a similar key to scramble and decode a message, so both the sender and the beneficiary must know and use a same private key. Once the go-to, symmetric-key calculation for the encryption of electronic information, DES has been superseded by the more secure Advanced Encryption Standard (AES) estimate. Amid the most recent couple of years, cryptanalysis had discovered a few shortcomings in DES when core chose are feeble keys. These keys might get kept away. DES has turned out to be an extremely outlined square figure. There have been no huge cryptanalytic assaults on DES other than through fundamental inquiry.

Advanced Encryption Standard

Advanced Encryption Standard becomes known as an exceptional standard employed around the world by the government of the United States to safeguard its secrets and protect classified information in any software and hardware device. The Advanced Encryption Standard, or AES, is a symmetric piece figure picked by the U.S. government to ensure grouped data and is actualized in programming and equipment all through the world to scramble touchy information. AES has been received by the U.S. government and presently utilized around the world. It supersedes the Data Encryption Standard (DES), which was distributed in 1977. The calculation portrayed by AES is a symmetric-key calculation, which means a similar key is utilized for both scrambling and unscrambling the information. This new propelled encryption calculation would be unclassified and must be “equipped for securing delicate government data well into the following century,” as indicated by the NIST declaration of the procedure for improvement of a propelled encryption standard calculation. It was planned to be anything but difficult to actualize in equipment and programming, and in limited situations (for instance, in a shrewd card) and offer excellent guards against different assault methods. AES depends on an outline standard known as a substitution-stage arrange, a blend of both substitution and change, and is quick in both programming and equipment. Not at all like its antecedent DES, AES does not utilize a Feistel arrange. AES is a variation of Rijndael which has a settled piece size of 128 bits, and a key size of 128, 192, or 256 bits.

Key Differences

  • Data Encryption Standard becomes known as a common standard used for encryption of data around the world and forms a secret key cryptography that only has one key for the use of decryption. On the other hand, Advanced Encryption Standard becomes known as an exceptional standard employed around the world by the government of the United States to safeguard its secrets.
  • The data encryption technique has existed for several years, and the person who makes the code has the key that unlocks the code and only given to others who require it. On the other hand, the advanced encryption technique exists for a few years, and no one has the coding technique and always stays with the government.
  • The data encryption method helps with the transfer of information between two more than two devices. On the other hand, advanced encryption method has the duty of safeguarding the information that already exists and away from public viewing.
  • AES is a variation of Rijndael which has a settled piece size of 128 bits, and a key size of 128, 192, or 256 bits. On the other hand, DES has a successful key length of 56 bits since 8 of the 64 bits of the key not utilized by the encryption calculation.

1 Comment

  • The data in the Virtual Size row has been switched between the two columns; AES uses 128/192/256 bit keys and a 128 bit code block.

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