*Correction - DES instead of DEC

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+5 votes

Feistal cipher is a symmetric cipher used in the construction of block cipher.

RSA is an asymmetric crypto mechanism.

DEC is symmetric and based on Feistal cipher

RC4 is a stream cipher which makes it symmetric, but is not based on Feistal structure.

0 votes

Feistel structure is symmetric key cryptography

DES and RC4 both are symmetric cryptography

So, Answer C) and D)

DES and RC4 both are symmetric cryptography

So, Answer C) and D)

0 votes

@srestha

Fiestal structure are block cipher . Not a symmetric Cyrptogaraphy

A symmetric is one which use same key for Encryption and Decryption

Infact it should be DES AES and tripple DES as block cipher ( or fiestal ) They amke use of P and S boxes .

Fiestal structure are block cipher . Not a symmetric Cyrptogaraphy

A symmetric is one which use same key for Encryption and Decryption

Infact it should be DES AES and tripple DES as block cipher ( or fiestal ) They amke use of P and S boxes .

0

See this link @Dexter

http://www.winlab.rutgers.edu/~trappe/Courses/AdvSec05/SymmetricCrypto.pdf

MMost symmetric block ciphers are based on a Feistel Cipher Structure

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