Aes (advance encryption standard)
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AES (Advanced Encryption Standard) is a symmetric block cipher algorithm that was adopted as a replacement for the DES (Data Encryption Standard) algorithm. AES is considered more secure than DES due to using a larger key size and being more computationally difficult to break. While AES is fast and reliable for encrypting files and documents, it is not suitable for encrypting communications due to the key exchange problem - for that, an asymmetric algorithm like RSA is typically used to securely exchange the AES key.
Aes (advance encryption standard)
- 1. Directed by: Sina Manavi
- 2. What is AES? AES features: AES vs. DES AES vs. RSA Summary Q&A
- 3. After Des Cracked, Triple-DES which was slow they announced in competition for calling algorithms and between 15 algorithms on October 2000 Rijndeal which was invented by two Belgians, Joan Daemen, Vincent Rijmen. On 2002 Rijndael became AES. Rijndael is free in commercial and non-commercial use
- 4. designed simple Low memory cost High speed algorithm The key used to decrypt and encrypt is same Cipher text and plain text are same size Fast both in Software and Hardware
- 6. AES is a Symmetric block cipher algorithm ,a supersedes of DES. This cipher is good for encoding and decoding files, documents, and etc. Reliability and high performance made it distinct between other methods. On the other hand if you wish to use AES in communication, because of the Key exchange problem this problem is solved by using a asymmetric algorithm such as RSA. Message is encoded by a private key and the receiver decode it with the public key. Although asymmetric algorithms are slow, we can use them for exchanging the key and encode the data with symmetric algorithm,
- 7. DES is really old while AES is relatively new DES is breakable while AES is still unbreakable DES uses a much smaller key size compared to AES DES uses a smaller block size compared to AES DES uses a balanced Feistel structure while AES uses substitution-permutation