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may 9 '12 at 12:05
Encryption with “constant” initialization vector considered harmful
— sergico
1312
may 4 '12 at 6:07
Creating an encryption key from several other keys and using hash functions
— Petey B
1193
may 2 '12 at 12:21
Practical necessity of semantic security under chosen plain text attack (CPA) in CBC mode
— Polynomial
479113
may 2 '12 at 1:25
Can I encrypt user input in a way I can't decrypt it for a certain period of time?
— mgorven
20613
may 2 '12 at 1:25
Can I encrypt user input in a way I can't decrypt it for a certain period of time?
— Lucas Kauffman
1316
apr 27 '12 at 18:33
In storing passwords in a database should I use a per-application salt in addition to a per-secret salt?
— orip
111
apr 19 '12 at 1:10
Would it be secure to use random numbers from random.org in a cryptographic solution?
— Paul Baclace
211
apr 11 '12 at 1:28
Does encrypting twice using the same block cipher produce a security weakness?
— Albert Veli
414
apr 2 '12 at 8:14
Does AES specify error messages when using the wrong password to decrypt?
— owlstead
64019
mar 20 '12 at 13:14
Is it generally possible to employ brute force methods when the encryption scheme is not known? Why or why not?
— Grant BlahaErath
1856
mar 18 '12 at 23:47
RSA encryption with private key and decryption with a public key
— SquareRootOfTwentyThree
51418
mar 15 '12 at 1:16
How can one share information using the 'host-proof' paradigm?
— Michael Klaus
414
mar 9 '12 at 7:11
Difference between “Signature Algorithm” and “Signature Hash Algorithm” in X.509
— mfrankli
1534
feb 20 '12 at 20:06
Can one group the SHA-256 outputs depending on partial inputs?
— Joachim Isaksson
1311
feb 18 '12 at 16:15
What is the 'Version Incompatibility" Problem in TLS 1.1/1.2 and 1.0?
— Nasko
1462
feb 10 '12 at 12:26
Why do we need asymmetric algorithms for key exchange?
— Henrick Hellström
2,6461412
feb 5 '12 at 1:01
What is the key strength reduction encrypting only 160 bits of data using RSA1024 for signatures
— GregS
1614
feb 1 '12 at 17:33
Why RSA encryption key is based on modulo(phi(n)) rather than modulo n
— Someone
513
jan 29 '12 at 13:54
What is the best way to send two floating point numbers to a server on the internet from a small device such as an arduino?
— B-Con
2,1741418
jan 28 '12 at 5:00
Can I construct a zero-knowledge proof that I solved a Project Euler problem?
— dr jimbob
26113
jan 27 '12 at 11:16
Can nesting different ciphers with different keys ever decrease security?
— Matt Green
863
jan 20 '12 at 12:58
A simple block cipher based on the SHA-256 hash function
— CodesInChaos
5,9641927
jan 11 '12 at 20:03
Is ISAAC considered secure as a cryptographic random number generator?
— Ben
31417
jan 10 '12 at 21:30
Would it be secure to use random numbers from random.org in a cryptographic solution?
— Conrado PLG
665110
jan 10 '12 at 13:04
two public keys with same passphrase insecure? | can two hashes be compared?
— Jim McKeeth
31317