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Questions tagged [threefish]

A family of tweakable symmetric block-cipher algorithms with 256, 512 and 1024 bit block and key sizes.

1
vote
2answers
223 views

Some simple questions about tweakable ciphers

I have read a few papers on tweakable ciphers (didn't understand them well, though) and looked at many of the questions and answers on this exchange: What is a tweakable block cipher, Tweakable Block ...
3
votes
1answer
560 views

Is there a real purpose to use Twofish, Serpent or Threefish instead of AES?

I am wondering if other ciphers like Serpent or Twofish or even Threefish have really an use in real life, because AES seems to be very efficient in most situations. But for example TrueCrypt or ...
0
votes
2answers
103 views

How to determine which tweak was used

Imagine the following situation: you have a tweakable block cipher you have a plain text block you have a cipher text block you have the key which was used to encrypt the plain text block I have ...
0
votes
1answer
370 views

How to encrypt data with the Threefish cipher

I want to know how the Threefish cipher can be used to encrypt and decrypt. I tried to find out by searching the Internet but can't find a concrete answer. The only answers are theoretical in nature ...
-1
votes
1answer
119 views

What is the difference between lightweight tweakable block cipher and tweakable block cipher?

What is the difference between lightweight tweakable block cipher and tweakable block cipher? For example, lightweight tweakable block cipher is SKINNY family, and tweakable block cipher is Threefish ...
3
votes
4answers
3k views

What is stronger Threefish 1024bit, SHACAL-2 512bit or AES 256?

I found some App in Google Store, and there were features only for PRO version: Threefish 1024bit, SHACAL-2 512bit. Meantime AES 256 was available in free version of app. So I concluded that ...
5
votes
4answers
13k views

What encryption should I use: Blowfish, Twofish, or Threefish?

The title of this thread pretty much sums up what I'm asking: what is the best encryption to use out of the three — Blowfish, Twofish, or Threefish?
2
votes
3answers
882 views

Is Threefish the only cipher with 1024 bits of security?

Threefish has up to a massive 1024 bits of security. Is it the only cipher with such overkill security?
5
votes
4answers
843 views

Which symmetric cipher is best for studying? [closed]

I would like to study a modern symmetric cipher (I have never studied a cipher before) and I was wondering which would be the best cipher for studying purposes of the following: AES (Rijndael), ...
28
votes
1answer
7k views

What is a tweakable block cipher?

Pretty simple question - but I can't seem to find much information about it. What exactly is a tweakable block cipher? How do they differ from traditional block ciphers? What is the 'tweak'? Is it ...