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Jul
15
awarded  Enlightened
Jun
29
comment Establishing encryption key using shared secret
You might not actually need a hash for authentication either, if you e.g. replace HMAC with CMAC. If you're using public key signatures, though, those probably do require a hash (among other machinery).
Jun
28
comment Establishing encryption key using shared secret
The main advantage of using AES for key derivation is that you're using it for encryption anyway, so it doesn't cost you any extra code to include it. Of course, if you need a hash for something else too, then it indeed becomes just a matter of speed and convenience. That said, AES is likely to win the speed contest too.
Jun
25
answered Establishing encryption key using shared secret
Jun
25
reviewed Leave Open Why develop Edward curve formulas that deviate from unification?
Jun
25
reviewed Leave Open Why is the public/private key length used in libsodium so much shorter than needed for RSA
Jun
25
awarded  Nice Answer
Jun
24
reviewed Approve ECDSA vs ECIES vs ECDH
Jun
24
answered Why does an algorithm need a keyspace?
Jun
24
comment Why does an algorithm need a keyspace?
@user1688175: $\in$
Jun
24
reviewed Reviewed Discrete Logarithm (512 bits numbers) - Find exponent parameter
Jun
24
reviewed Edit Discrete Logarithm (512 bits numbers) - Find exponent parameter
Jun
24
revised Discrete Logarithm (512 bits numbers) - Find exponent parameter
Corrected the use of some mathematical expressions.
Jun
23
comment what are the most common stream ciphers algorithms?
If it's not a block cipher in CTR or OFB mode, it's most likely RC4. There are a lot of other interesting stream cipher designs out there, but most of them are rarely seen outside specific niche applications (e.g. tiny embedded ASICs). RC4 is what you'll find in most crypto libraries.
Jun
23
reviewed Close what are the most common stream ciphers algorithms?
Jun
23
reviewed Reviewed On Proving That a Primitive Does Not Exist
Jun
23
answered Generating PGP key *without* random generator? (using fixed input only)
Jun
23
answered Does the One Time Pad rely on confusion or diffusion?
Jun
22
awarded  Constituent
Jun
22
comment Frequency tables for HTML page source
HTML has lots of repetitive strings (e.g. tag names), so you may want to try looking at $n$-gram frequencies for $n\ge2$, or just crib dragging.