common encrytion algorithms and methods: DES RSA Triple DES Diffie-Hellman key e

Question

common encrytion algorithms and methods:
DES
RSA
Triple DES
Diffie-Hellman key exchange
IDEA
EL Gamel encrytion algorithm
CAST
ECC
Blowfish
SSL
AES
Digital signature


Confidential services inc. is a milatary support branch consisiting of 14,000,000 computers with internet access and 250,000 servers. All employees must have security clearances. they communicate mainly through internally secured systems. confindential services inc. is concered that sensitive information may inadvertenly be exposed and wants to implement a symmetric file encryption algorithm that is strong but fast. Select an encryption solution that best meets the companies needs and justify the recommendation.

Explanation / Answer

Blowfish encryption algorithm can be used by the Confidential services inc. to meet its needs because it is a strong and fast symmetric encryption algorithm. Since the company requires a fast and strong algorithm, blowfish suits well. Blowfish is a symmetric block cipher that can be used for encryption. It uses a key of variable length 32 bits to 488 bits. Blowfish is strong and significantly faster than most other encryption algorithms.

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