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Dmitry Khovratovich

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Top Questions
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Top Answers
44
Why should I use Authenticated Encryption instead of just encryption?
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41
AES-GCM Disadvantage
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20
SHA-256: (Probabilistic?) partial preimage possible?
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17
Are AES-256's related-key weaknesses exploitable if it is used to build a hash?
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14
Is TripleDES 168bit vulnerable to Differential Cryptanalysis?
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12
Why are the initial states of hashes functions (like SHA-1) often non-zero?
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12
Can I use HMAC-SHA1 in counter mode to make a stream cipher?
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11
AES-CTR mode and the Biclique Attack
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11
Has threefish successfully been attacked (practically or theoretically)?
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11
Does having a known plaintext prefix weaken AES256?
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9
Formal definition of "explicit" algorithm?
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9
DES — Can I recover the key when I have both ciphertext and the plaintext?
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9
Why has the sponge construction's generic collision finding attack a complexity of O(min(2^(-n/2) , 2^(-c/2)))?
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9
In what way is XXTEA really vulnerable?
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9
Problems with using AES Key as IV in CBC-Mode
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9
Math to replace s-boxes - Good or bad idea?
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9
How can a Vigenère cipher be broken if the message is short?
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8
Simple proof of work example?
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7
Why to try get key out of white box crypto? How can one protect WBC itself?
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7
Are there any practical examples of breaking a system using linear attacks?
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7
Applying differential cryptanalysis to ciphers with addition mod $2^{32}$
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7
a doubt in Rijndael's key expansion sizes
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7
Simple proof that shows AES is not a uniform permutation on any n-bit string?
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7
CBC-MAC based on PRF
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6
Can you explain what the AES paper means by "sharing active S-boxes"?
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6
Security proofs for CBC mode
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6
Are there any bijective one-way functions not based on number-theoretic hardness assumptions?
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6
Two-dimensional S-Box
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6
Are there valid attacks on full SHA-1?
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6
rotational cryptanalysis on modulo multiplication?
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