COMPUTER ETHICS AND SECURITY
CRYPTOGRAPHY AND ENCRYPTION
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
Drop Encryption Server
|
|
|
Data Encryption Standard
|
|
|
Digital Encrypt Server
|
|
|
None of the above
|
Detailed explanation-1: -Data Encryption Standard (DES) is an outdated symmetric key method of data encryption. It was adopted in 1977 for government agencies to protect sensitive data and was officially retired in 2005. IBM researchers originally designed the standard in the early 1970s.
Detailed explanation-2: -Explanation: DES is a symmetric key block cipher in which the block size is 64 bits and the key size is 64 bits. It is vulnerable to some attacks and is hence not that popularly used.
Detailed explanation-3: -The term AES is an acronym for Advanced Encryption Standard. The term DES is an acronym for Data Encryption Standard. Length of Keys. The key length of AES can generally vary from 128, 192, and 256 bits. The key length of DES is about 56 bits.