All Questions
23 questions
1
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2
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393
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Hamming Distance and Avalanche effect in Cryptography?
I am new to Cryptography and I know there are better ways to test a cipher's effectiveness out there but in this case I am trying to test a cryptographic algorithm's(AES,xchacha20,twofish) hamming ...
- 43
3
votes
2
answers
794
views
Is it possible to identify a Serpent encryption key in memory?
It has been shown that AES keys that are in use can be identified in memory. This identification relies on discovering expected round keys in memory that are contained within the key schedule.
My ...
- 687
3
votes
2
answers
2k
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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 ...
- 37
0
votes
1
answer
202
views
Block Ciphers with encryption speed similar to AES
What all block ciphers can achieve encryption speed similar/near to AES on general purpose computers with AES-NI enabled and disabled.
Camellia seems to be near to AES, and Twofish seems to be much ...
- 2,502
1
vote
3
answers
749
views
CSPRNG made out of Block Cipher running in CTR Mode?
From Definition of CSPRNG, it has two characteristics
It satisfies the next-bit test.
It withstands 'state compromise extensions' - part of all of the state being compromised does not allow for ...
- 2,502
1
vote
1
answer
991
views
Key strenth in Cipher cascades (Veracrypt)
Disclaimer : basic crypto knowledge
So this is a question specificly about veracrypt , but theoreticly applies to any other encryption software which supports cipher cascades .
So if you use a ...
- 4,495
0
votes
1
answer
1k
views
Cryptographic algorithms compromised and alternatives?
After Edward Snowden's release of top secret information we have seen clues that the NIST certified crypto-algorithms like AES might be compromised.
Although not as fast as AES, we prefer Twofish ...
- 27
1
vote
1
answer
255
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How secure is AES in a critical situation?
So this one is a tinfoil-hat question.
It is 99 % theoretical.
So we assume that I am someone who stores highly confidential information. Maybe super secret stolen goverment stuff. And I get caught ...
- 4,495
3
votes
2
answers
532
views
can a weak cipher in a cascade weaken the result?
So i am a real beginner .
And I use AES(TWOFISH(Serpent))) for my veracrypt file .
So I asked myselfe a Question :
When a Cascade is made the Key is split in parts for each algorythm .
So if We ...
- 4,495
1
vote
2
answers
14k
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AES vs other types of encryption such as Twofish
I am kinda of confused about what are some major differences between AES, Twofish, and other types of common encryption algorithms.
3
votes
0
answers
199
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Implement Twofish cipher with 16-bit blocksize?
I've seen implementation of Rijndael cipher with 16-bit blocksize. And I have also tried to implement 16-bit Rijndael cipher by myself with only a little sneak peeking at the example of the ...
- 365
8
votes
3
answers
10k
views
Is it true that Serpent and twofish are much stronger than AES?
I heard that Serpent and Twofish are much stronger than AES, but it was chosen because it is faster. If that's true, please tell me why it is stronger.
Also: is it true that Twofish and serpent are ...
- 4,495
1
vote
0
answers
104
views
Why did Rijndael become AES; what is wrong with Twofish and Serpent? [duplicate]
Why did the Rijndael cipher become the Advanced Encryption Standard instead of Twofish and Serpent?
Do Serpent and Twofish have security issues or weak keys?
Or is it just slower?
I know that some ...
- 4,495
-1
votes
1
answer
711
views
Why did Rijndael become the AES Standard . What is wrong with Twofish and Serpent? [duplicate]
Why did Rijndael become the AES Standard? What is wrong with Twofish and Serpent? Is there a security vulnerability in Twofish/Serpent? How do they work? As far as I know, Twofish and Serpent are used ...
5
votes
1
answer
862
views
Order of multiple encryption algorithms
as you can see on image above, in VeraCrypt you can select either
Serpent -> Twofish -> AES
or
...
- 53
4
votes
1
answer
491
views
Twofish MDS and PHT
Twofish was an AES candidate and it uses $4 \times 4$ Matrix as MDS followed by a PHT.
The Branch Number of MDS and PHT is 5 and 2 Respectively.
from formula
$Branch~Number = Minimum~of~[...
- 2,502
1
vote
1
answer
3k
views
Symmetric cipher speed (AES vs Camellia vs Twofish)
If I have understood correctly, Twofish is more secure (harder to break) than AES and Camellia, but it's slower than both.
How can I measure the speed difference between AES vs Twofish and Camellia ...
- 365
5
votes
4
answers
915
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), ...
- 53
17
votes
2
answers
71k
views
Twofish vs. Serpent vs. AES (or a combo)
I've seen some posts and info online, but they are from 2009, 2010, 2011 or 2012, which is 3-6 years ago, which is a very long time. So I'm looking for an up-to-date answer about which of these is the ...
- 273
-6
votes
1
answer
1k
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Alternative encryption algorithm [closed]
I need a alternative encryption alcorithm to AES. It shouldn't be AES, Twofish or Serpent and it must be very strong. I dont care about the performance.
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7
votes
2
answers
4k
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Combining multiple symmetric encryption algorithms - implications?
I was just wondering if I add more security by combining two or more symmetric encryption algorithms on a plain text.
For example: ...
- 335
8
votes
1
answer
8k
views
Advantage of AES(Rijndael) over Twofish and Serpent
I'm trying to figure out a suitable encryption technique and after reading a bit, I figured the current AES 128-bit encryption is suitable for what I'm trying to do. However, this is more due to the ...
- 647
8
votes
2
answers
11k
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Rijndael vs. Serpent vs. Twofish: General comparison
Can anyone explain (or give a link to document about) why Rijndaal won the AES, especially comparing it to other finalists (Serpent and Twofish)? What criteria were used to make decision?
Or is there ...
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