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  • 35 votes cast
Mar
3
comment Security of Pohlig-Hellman exponentation cipher?
Actually, here is the question about the same thing - crypto.stackexchange.com/a/1366/843 .
Mar
3
accepted Security of Pohlig-Hellman exponentation cipher?
Mar
3
comment Security of Pohlig-Hellman exponentation cipher?
I need a commutative cipher for an application where two or more peers need to encrypt and decrypt data out of order. I can only find information on two algorithms, with this being the better one apparently. I guess I should ask about commutative ciphers in a separate question...
Mar
2
asked Security of Pohlig-Hellman exponentation cipher?
Jan
26
comment Hashing passwords with a salt - why use different salt for everyone?
@starblue Yes, but a single salt plus unique username would prevent the attacker from amortising their effort as they would not be able to look for more than one user's password at a time.
Jan
26
comment Hashing passwords with a salt - why use different salt for everyone?
@StephenTouset I am not implementing such a system myself, I'm just curious about the problem. This question is just to satisfy that curiosity.
Jan
26
accepted Hashing passwords with a salt - why use different salt for everyone?
Jan
25
asked Hashing passwords with a salt - why use different salt for everyone?
Jan
24
asked Secure communication between multiple peers on a public channel
Dec
18
accepted How to generate a public key from a private ECDSA key?
Dec
18
asked How to generate a public key from a private ECDSA key?
Sep
25
awarded  Yearling
May
31
asked How to properly add ECDSA private keys?
May
27
accepted Is there some way to generate a non-predictable random number in a decentralised network?
May
27
accepted How strong is the ECDSA algorithm?
Apr
28
asked How strong is the ECDSA algorithm?
Apr
28
accepted What is the largest performed/possible bruteforce attack to date?
Apr
10
comment What is the largest performed/possible bruteforce attack to date?
@RickyDemer Some paper would be ideal, but probably the website will do.
Apr
9
asked What is the largest performed/possible bruteforce attack to date?
Feb
19
accepted How can I calculate the SHA-256 “midstate”?