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Apr
14
reviewed Approve Software timing attack using Kocher method
Apr
14
revised Software timing attack using Kocher method
Tentatively reword the question
Apr
14
revised Software timing attack using Kocher method
Give title of the paper
Apr
14
revised Software timing attack using Kocher method
removed wrong reference
Apr
14
revised Software timing attack using Kocher method
added 9 characters in body
Apr
14
revised Software timing attack using Kocher method
Added reference
Apr
14
reviewed Approve Software timing attack using Kocher method
Apr
13
comment SHA-1: number of possible inputs, number of possible outputs, how many inputs have the same output,
suggestion: use of double dollar sign, added parenthesis, added spacing$$\sum_{l=0}^{2^{64}-1} 2^l\;=\;2^{(2^{64})} - 1$$
Apr
13
comment Is there an AES identity key?
I do not think that you can rigorously infer "a known property of AES is that modifying the plain text by one bit will affect the ciphertext by more than one bit". This is true for a single round, but I fail to see how that extends to many rounds. In fact, it seems unlikely that this property holds.
Apr
13
answered Are there any hash functions that use integers of arbitrary bit size (e.g., int63)?
Apr
13
comment Are there any hash functions that use integers of arbitrary bit size (e.g., int63)?
Is there really any platform out there with 63-bit integers, and no support for 64-bit unsigned integers (perhaps disguised as 63-bit signed integers) ?
Apr
13
comment Attacks of the MAC construction $\mathcal{H}(m||k)$ for common hashes $\mathcal{H}$?
I conclude there is no known attack better than this generic attack, and accept the answer.
Apr
13
accepted Attacks of the MAC construction $\mathcal{H}(m||k)$ for common hashes $\mathcal{H}$?
Apr
13
awarded  Popular Question
Apr
12
awarded  Necromancer
Apr
12
comment What may be causing conflicts in Whirlpool implementation versions?
Are you sure there is no gremlin (like a rogue terminating byte) in the input you feed to OpenSSL and rHash? At least, check if the file size is what it should be. You would not be the first one to be caught by that.
Apr
12
revised Will the contents of a password protected Zip 2.0 file be safe for a week
answer for 64-bit
Apr
12
revised ZIP 2.0 encryption bruteforce attack
fix link to the partial quotation, which became obsolete
Apr
12
answered Will the contents of a password protected Zip 2.0 file be safe for a week
Apr
12
revised ZIP 2.0 encryption bruteforce attack
remove earsay that I could not reproduce