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83/80 answers
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 Taxonomist
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~500k people reached

Apr
10
comment Is it possible to tweak AES-GCM so that it is satisfactory for whole-disk encryption (like XTS mode)?
Question: where does ZFS get the GCM nonces from?
Apr
10
reviewed No Action Needed Randomness in generation of Virtual Machines from pre-built Image
Apr
10
reviewed No Action Needed DSA: Authentication and assurance of authorized parties
Apr
9
comment How multiplicative property of RSA can be exploited
Nit: an attack doesn't have to be a key-recovery attack to be considered a break. An attack that recovers the plaintext (for public key encryption), or generates a forgery (for signature) is a break, even if it gives us no clue what the private key is.
Apr
9
answered Algebraic cryptanalysis on public-key schemes
Apr
9
answered Why is this the inverse of a Enigma Machine rotor?
Apr
9
comment algebraic attacks for mixed operations (mod 2 and mod 256)
Both bitwise exclusive-or and addition can easily be expressed mathematically. What are you asking?
Apr
8
comment Creating a random password based off of a prime number
Is there a specific reason you are starting with a prime number? Is there a reason why a random number of the same size wouldn't work as well? Also, I second fgrieu's question about Random() -- should you trust it to generate cryptographical keys?
Apr
7
comment New to cryptology, studying Message Authentication Codes
@MaartenBodewes: MAC does have two meanings, however not in the way you're thinking of. It can mean a cryptographical algorithm that meets certain properties (e.g. hard for someone without the key to generate a new message/tag pair), independent of how the MAC functions internally. Alternatively, it is sometimes used to indicate the tag generated by a Message Authentication Code.
Apr
7
awarded  Taxonomist
Apr
7
comment New to cryptology, studying Message Authentication Codes
MIC has the exact same meaning as MAC; MIC is used when we're in an area (such as wireless) where the acronym MAC already has been given a message (Media Access Code)
Apr
5
comment Identification by RSA
@RobertNACIRI: you don't always need mutual authentication; for example, if Alice is amazon.com, and Bob is someone on a PC buying from amazon, Alice has no need to authenticate Bob
Apr
5
revised Identification by RSA
added 1 character in body
Apr
5
comment Identification by RSA
@RobertNACIRI: I believe that it is assumed that Bob knows Alice's public key; and it is sufficient for Alice to private that she knows the private key.
Apr
5
answered Identification by RSA
Apr
4
reviewed Approve Why is diffie-hellmangroup1-sha1 used instead of diffie-hellman?
Apr
4
reviewed Close Required key size for an ideal cipher with a 32 bit block size
Apr
4
reviewed Leave Open Paper about this secure P2P idea?
Apr
2
reviewed Looks OK Searching over encrypted data
Apr
2
reviewed No Action Needed Encrypted database: how to deal with general queries?