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Dec
22
revised Find private exponent in RSA
formatting
Dec
21
revised How can a cryptosystem be unconditional secure?
make the image a link
Dec
20
comment Is it safe to AES-CBC and AES-CMAC both using the same key?
@binta I did think this too, but the effective IV here is not the predictable "last 16 bytes of previous ciphertext", but the AES-encryption of those, which should not be predictable by an attacker, assuming no time-rollback.
Nov
27
comment Diceware word list for six dice
@Ed: I'm not sure that there are that many "relative easy words" in any language.
Nov
18
comment Is it possible to determine a PGP public key from encrypted data?
@Ricky I have to concur to e-sushi's comment ... could you write at least some excerpt of that answer here, maybe with some emphasis on the crypto-related stuff?
Nov
17
awarded  Enlightened
Nov
17
awarded  Nice Answer
Nov
17
revised How does GPG verify succesful decryption?
fix typo
Nov
10
revised What does $\mathbb Z_p^*$ contain?
formatting, better tag
Nov
10
comment Opinion on my idea for storing credit cards securely
Welcome to Cryptography Stack Exchange. How would a user "provide his private key"? I guess usual users can memorize their credit card data easier than they can memorize a private key.
Nov
7
revised What is the value of Q such that Q|P-1 where P is a prime number?
edited tags
Nov
7
comment Crypto-Compression Algorithms?
@Habib: The size of the message space doesn't change by compression, assuming you are using lossless compression (i.e. compression which can be reverted). You just change the encoding of it to a form which is on average shorter.
Nov
4
revised Why to try get key out of white box crypto? How can one protect WBC itself?
formatting
Nov
2
comment How to figure out the size of the output of a cryptographic checksum function
Welcome to Cryptography Stack Exchange. It looks like your question is actually to be answered in exercise 20 – the text before it doesn't really explain it.
Nov
2
revised How to figure out the size of the output of a cryptographic checksum function
formatting
Nov
1
revised How can a good pseudo-random number generator be made?
typos, formatting
Oct
28
revised Is there any probabilistic version of RSA?
a bit more on key randomization
Oct
28
revised Is there any probabilistic version of RSA?
add a note on the key randomization
Oct
28
answered Is there any probabilistic version of RSA?
Oct
21
awarded  Enlightened