1,846 reputation
515
bio website
location
age
visits member for 3 years
seen 4 hours ago

Apr
21
awarded  Civic Duty
Mar
22
comment Do any one-key-of-many cryptographic schemes exist?
+1. Perhaps you might also mention: This standard construction is standardized in more detail in "RFC 4880: OpenPGP Message Format".
Mar
15
comment Analogue encryption algorithms
I agree that most of these systems are mostly just obfuscation. Most people define things like the Playfair cipher as "encryption", although it is relatively easily distinguished from white noise. Even using your unnecessarily strict definition of "encryption", I suspect that it may be possible to build an analog system that would be practically indistinguishable from white noise; with a vocoder + frequency hopping using a "good" pseudo-random number generator + random chaff.
Mar
15
comment Analogue encryption algorithms
I dunno; I suspect that with a bit of tweaking the vocoder + frequency hopping using a "good" pseudo-random number generator + random chaff would be pretty close to indistinguishable from white noise.
Mar
15
answered Analogue encryption algorithms
Mar
6
awarded  Revival
Feb
28
answered Can a zero knowledge proof (or MAC) be generated from human-typable input?
Feb
22
answered Can the passphrase of a PGP key be deduced from an old backup?
Jan
24
answered ASCII to same-length ASCII encryption?
Jan
24
comment Is there a standard for OpenSSL-interoperable AES encryption?
related: "Wheres the salt on the openssl aes encryption?"
Jan
24
accepted Is there a standard for OpenSSL-interoperable AES encryption?
Jan
24
comment Impact of distinguishing between random text and cipher text?
Wikipedia: Feistel cipher currently claims that '4 rounds are sufficient to make it a "strong" pseudorandom permutation'. Is Wikipedia wrong, or am I misunderstanding Patarin or Wikipedia or both?
Jan
21
answered Asymmetric algorithm to generate compact unique messages that can be validated
Jan
21
answered Messages exchanged between Bob Alice are encrypted safe?
Jan
18
awarded  Informed
Jan
13
answered AES Algorithm processing time in Arduino vs Raspberry Pi
Jan
13
comment Convert old and busted password encryption to something sensible
related: Increase the security of an already stored password hash
Jan
12
comment Is there a simple hash function that one can compute without a computer?
related: crypto.stackexchange.com/questions/11691/…
Jan
7
awarded  Nice Answer
Jan
2
comment How does the secret key in an HMAC prevent modification of the HMAC?
@StephenTouset, by "appending data to the end", I think George is referring to a length extension attack, which is not trivial.