Encryption Algorithms

Question 1

Data Encryption Standard (DES)

Answer 1

The Data Encryption Standard is a symmetric block cipher, meaning a cryptographic key and algorithm are applied to a block of data simultaneously rather than one bit at a time. To encrypt a plaintext message, DES groups it into 64-bit blocks. Too insecure for modern applications

Question 2

Triple DES

Answer 2

In cryptography, Triple DES, officially the Triple Data Encryption Algorithm, is a symmetric-key block cipher, which applies the DES cipher algorithm three times to each data block.

Question 3

Andvanced Encryption Standard (AES)

Answer 3

The Advanced Encryption Standard (AES) is a symmetric block cipher chosen by the U.S. government to protect classified information.

Question 4

Blowfish

Answer 4

Blowfish is a symmetric-key block cipher. Included in many cipher suites and encryption products. Blowfish provides a good encryption rate in software, and no effective cryptanalysis of it has been found to date.

Question 5

Twofish

Answer 5

Twofish is the successor to Blowfish, and, like its predecessor, uses symmetric encryption, so only one 256-bit key is necessary. This technique is one of the fastest encryption algorithms and is ideal for both hardware and software environments.

Question 5

Twofish

Answer 5

Twofish is the successor to Blowfish, and, like its predecessor, uses symmetric encryption, so only one 256-bit key is necessary. This technique is one of the fastest encryption algorithms and is ideal for both hardware and software environments.

Question 6

Hashing

Answer 6

Hashing is the process of transforming any given key or a string of characters into another value. This is usually represented by a shorter, fixed-length value or key that represents and makes it easier to find or employ the original string. The most popular use for hashing is the implementation of hash tables.