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Exam 312-50v11 topic 1 question 181 discussion

Actual exam question from ECCouncil's 312-50v11

Question #: 181
Topic #: 1

This form of encryption algorithm is a symmetric key block cipher that is characterized by a 128-bit block size, and its key size can be up to 256 bits. Which among the following is this encryption algorithm?

A. HMAC encryption algorithm
B. Twofish encryption algorithm
C. IDEA
D. Blowfish encryption algorithm

Show Suggested Answer

Suggested Answer: B 🗳️

by americaman80 at April 15, 2021, 5:19 p.m.

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tille

Highly Voted 2 years, 7 months ago

Twofish seems to be correct as americanman80 says. Blowfish has bigger size then 256bit, idea has just 64bit. HMAC is for hashing not encytpting.

upvoted 12 times

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AjaxFar

Highly Voted 2 years ago

256 synonymous to two fish, na my own way be that, blowfish is from 32 to 248 bit, it really blow

upvoted 7 times

ethicalkt

9 months, 3 weeks ago

I liked your trick to remember blowfish, just one small correction that blowfish is from 32 to 448 bit

upvoted 2 times

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Daniel8660

Most Recent 1 year, 2 months ago

Selected Answer: B

Ciphers Twofish uses a block size of 128 bits and key sizes up to 256 bits. It is a Feistel cipher.encryption speed. (P.3032/3016)

upvoted 3 times

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BlackThunder

1 year, 2 months ago

are these questions frequently asked in exam? I am not able to answers these questions.

upvoted 4 times

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AjaxFar

2 years ago

256 synonymous to two fish, na my own way be that, blowfish is from 32 to 248 bit, it really blow

upvoted 2 times

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ANDRESCB1988

2 years, 5 months ago

correct

upvoted 2 times

marcoatv

1 year, 6 months ago

This guy gives the best explanations

upvoted 2 times

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americaman80

2 years, 8 months ago

Correct. Check Wikipedia.

upvoted 6 times

Scryptic

2 years, 4 months ago

Verified: https://en.wikipedia.org/wiki/Twofish

upvoted 5 times

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