DES algorithm advantages: The DES algorithm has extremely high security. So far, except for the poverty search method to attack the DES algorithm, no more effective way has been found. DES algorithm disadvantages: 1, the packet is relatively short. 2, the key is too short. 3, the password life cycle is short. 4, the operation speed is slow. aES algorithm advantages: 1, fast operation speed. 2. The demand for memory is very low, suitable for a limited environment. 3, grouping length and key length design. 4, AES standard supports variable group length. The packet length can be set to any multiple of 32 bits, the minimum value is 128 bits, and the maximum value is 256 bits. 5, AES's key length is larger than DES. It can also be set to any multiple of 32 bits, with a minimum value of 128 bits and a maximum value of 256 bits. 6, a good ability to resist differential password analysis and linear password analysis. aes algorithm disadvantages: There is no successful attack on the full version of AES algorithm, but it has proposed an attack on its simplification algorithm.
The expansion information: This of high -level encryption standards (English: Advanced Standard, abbreviation: AES), also known as Rijndael encryption method in cryptography, is a block encryption used by the US federal government standard. This standards are used to replace the original DES, which have been analyzed by multiple parties and widely used in the world. After five years of selection process, the advanced encryption standards were published in FIPS PUB 197 on November 26, 2001 by the National Standard and Technology Research Institute (NIST), and became effective standards on May 26, 2002. In 2006, advanced encryption standards have become one of the most popular algorithms in symmetrical key encryption. Reference materials Source: Baidu Encyclopedia-AES (Advanced Crypto Standard) Reference materials Source: Baidu Encyclopedia-Des algorithm n
Advantages: "DES": fast operation speed, less resource consumption; "AES": fast operation speed, high safety, less resource consumption r n "des": Data Algorithm (DEA) is a symmetrical encryption algorithm. It is likely to use the most widely used key system. Especially in the security of financial data, the initial Dea developed was embedded in hardware embedded in hardware. of. Usually, the Automated Teller Machine (ATM) uses DEA. It comes from IBM's research work, and IBM has also had several years of patent rights. However, after the expiration of 1983, it is in a public scope. It allows patent use fees to be used under specific conditions. It was officially adopted by the US government in 1977. "AES": Advance: Advanced Standard, abbreviation: AES). It is also called Rijndael encryption method in cryptography. It is a block encryption standard adopted by the US federal government. This standard is used to replace the original DES, which has been analyzed by multiple parties and is widely used in the world. After five years of selection process, the advanced encryption standards were published in FIPS PUB 197 on November 26, 2001 by the National Standard and Technology Research Institute (NIST), and became effective standards on May 26, 2002. In 2006, advanced encryption standards have become one of the most popular algorithms in symmetrical key encryption.
DES algorithm advantages: The DES algorithm has extremely high security. So far, except for the poverty search method to attack the DES algorithm, no more effective way has been found.
DES algorithm disadvantages:
1, the packet is relatively short.
2, the key is too short.
3, the password life cycle is short.
4, the operation speed is slow.
aES algorithm advantages:
1, fast operation speed.
2. The demand for memory is very low, suitable for a limited environment.
3, grouping length and key length design.
4, AES standard supports variable group length. The packet length can be set to any multiple of 32 bits, the minimum value is 128 bits, and the maximum value is 256 bits.
5, AES's key length is larger than DES. It can also be set to any multiple of 32 bits, with a minimum value of 128 bits and a maximum value of 256 bits.
6, a good ability to resist differential password analysis and linear password analysis.
aes algorithm disadvantages: There is no successful attack on the full version of AES algorithm, but it has proposed an attack on its simplification algorithm.
The expansion information:
This of high -level encryption standards (English: Advanced Standard, abbreviation: AES), also known as Rijndael encryption method in cryptography, is a block encryption used by the US federal government standard.
This standards are used to replace the original DES, which have been analyzed by multiple parties and widely used in the world. After five years of selection process, the advanced encryption standards were published in FIPS PUB 197 on November 26, 2001 by the National Standard and Technology Research Institute (NIST), and became effective standards on May 26, 2002. In 2006, advanced encryption standards have become one of the most popular algorithms in symmetrical key encryption.
Reference materials Source: Baidu Encyclopedia-AES (Advanced Crypto Standard)
Reference materials Source: Baidu Encyclopedia-Des algorithm
n
Advantages: "DES": fast operation speed, less resource consumption; "AES": fast operation speed, high safety, less resource consumption r
n "des": Data Algorithm (DEA) is a symmetrical encryption algorithm. It is likely to use the most widely used key system. Especially in the security of financial data, the initial Dea developed was embedded in hardware embedded in hardware. of. Usually, the Automated Teller Machine (ATM) uses DEA. It comes from IBM's research work, and IBM has also had several years of patent rights. However, after the expiration of 1983, it is in a public scope. It allows patent use fees to be used under specific conditions. It was officially adopted by the US government in 1977.
"AES": Advance: Advanced Standard, abbreviation: AES). It is also called Rijndael encryption method in cryptography. It is a block encryption standard adopted by the US federal government. This standard is used to replace the original DES, which has been analyzed by multiple parties and is widely used in the world. After five years of selection process, the advanced encryption standards were published in FIPS PUB 197 on November 26, 2001 by the National Standard and Technology Research Institute (NIST), and became effective standards on May 26, 2002. In 2006, advanced encryption standards have become one of the most popular algorithms in symmetrical key encryption.