Cryptography

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earned this badge 18 times.
Trying to better understand the failure of the Index Calculus for ECDLP
Awarded Nov 15 '18 at 11:30
Distinguishing x25519 public keys from random?
Awarded Aug 27 '18 at 6:00
How is HMAC(message,key) more secure than Hash(key1+message+key2)
Awarded Jun 11 '18 at 20:29
Are safe primes $p=2^k \pm s$ with $s$ small less recommandable than others as a discrete log modulus?
Awarded Dec 24 '17 at 0:05
Edwards / Montgomery ECC with Weierstrass Implementation?
Awarded Nov 24 '16 at 1:20
Can ECDSA signatures be safely made “deterministic”?
Awarded Nov 21 '16 at 15:49
Known methods for constant time (table-free) AES implementation using 'standard' operations?
Awarded Oct 27 '16 at 15:53
Logjam on Elliptic Curves?
Awarded Apr 15 '16 at 11:26
Why does the crypto_box functionality in NaCl library exposes the nonce to the programmer
Awarded Dec 2 '15 at 10:17
Why are the lower 3 bits of curve25519/ed25519 secret keys cleared during creation?
Awarded Jul 17 '15 at 22:03
How robust is discrete logarithm in $GF(2^n)$?
Awarded Apr 20 '15 at 22:11
Why would anyone use an elliptic curve with a cofactor > 1?
Awarded Nov 9 '14 at 1:38
Do recent announcements about solving the DLP in $GF(2^{6120})$ apply to schemes proposed for cryptographic use?
Awarded Aug 23 '14 at 13:38
Why is public-key encryption so much less efficient than secret-key encryption?
Awarded May 7 '14 at 15:30
When using Curve25519, why does the private key always have a fixed bit at 2^254?
Awarded Dec 27 '13 at 21:28
Why doesn't CTR mode require blocking?
Awarded Dec 15 '13 at 14:05
What is so special about elliptic curves?
Awarded Nov 5 '13 at 20:10
How long does it take to crack DES and AES?
Awarded Apr 25 '12 at 16:07

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