Cryptography Stack Exchange
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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.

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

The Threefish block-cipher was designed as part of the hash function, which was a finalist in the NIST .

See the wikipedia page for more information.

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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 just a sequence of bytes? Does it have any special…
hunter
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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?
Fumerian Gaming
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Which is stronger: Threefish 1024-bit, SHACAL-2 512-bit, or AES-256?

I found some App in the Google Store, and there were features only for the PRO version: Threefish 1024-bit and SHACAL-2 512-bit. Meantime, AES-256 was available in the free version of app. So I concluded that the Threefish 1024-bit and SHACAL-2…
Chosenman
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Which symmetric cipher is best for studying?

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), Blowfish, Twofish, Threefish or Serpent. Basically I am…
Superpelican
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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 VeraCrypt offer Serpent and Twofish to be the…
daralim
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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?
Demi
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OpenSSL supports AES, Camellia, ChaCha. How about Twofish, Threefish, Serpent?

If I understood correctly, some symmetric ciphers such as AES, Camellia, ChaCha are implemented in OpenSSL (along with several older ones) but some other commonly used and proven ciphers such as Serpent, Twofish and Threefish are not. Any way or…
RocketNuts
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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 ciphers, Tweaking Even-Mansour Ciphers [video].…
Red Book 1
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Faster cipher than AES256-CBC to use for DRM purpose

I have to develop a program using a "secret" locally stored encoded program for a school project. For this I have to decipher the code on the fly to use it. The project recommend the use of AES 256 in CBC mode, but for better performance any…
Job Valère
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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 these questions to it: Is there a way to determine…
Aemyl
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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 which is not usable to me.
MUHAMMAD SHOAIB
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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 cipher.
Petr
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