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Cryptography

Self-Learner

 Self-Learner
Answer your own question with score of 3 or more.
Awarded 163 times.
Confused about converting Ed25519 public key to X25519 public key
Awarded yesterday
When is this lattice skewed after LLL reduction
Awarded Mar 11 at 23:17
Historical - KOH FDE
Awarded Jan 15 at 7:20
How does SMB authentication work?
Awarded Jan 13 at 12:58
Why does Argon2 truncate BLAKE2b outputs?
Awarded Nov 26, 2024 at 1:35
Test of linear constraints in RS codes - has the Ligero approach a typo in both papers?
Awarded Oct 20, 2024 at 16:39
Is it viable to find an MD5 collision for Haskell's sparse unicode string encoding?
Awarded Oct 12, 2024 at 22:36
ECIES need for KDF
Awarded Oct 6, 2024 at 12:36
Trying to understand the constant factors (19 and 38) in Ed25519 ref10 function 'fe_mul'
Awarded Aug 4, 2024 at 15:07
"pc" variant of McEliece—what is it?
Awarded Feb 17, 2024 at 9:49
Is F(k,k) $\oplus$ F(k,x) a pseudorandom permutation?
Awarded Dec 28, 2023 at 22:36
RSA perfect square phi
Awarded Dec 7, 2023 at 12:05
Explain Fischlin's Fiat-Shamir like transformation
Awarded Sep 22, 2023 at 8:31
State of the art for Graph Isomorphism
Awarded Sep 12, 2023 at 19:10
Given two unrelated generators $G_1$ and $G_2$, and a third with $H = G_1 + G_2$. Is it hard to compute $xG_1$ from $xH$?
Awarded May 4, 2023 at 6:47
Maximum entropy of a hash function?
Awarded Apr 25, 2023 at 3:09
Quickest way to find MD5 collision
Awarded Mar 16, 2023 at 3:07
Why did Yubico changed U2F Key Derivation method on YubiKey?
Awarded Mar 8, 2023 at 12:43
Why cryptsetup default KDF is PBKDF2 and not Argon2(id)?
Awarded Mar 6, 2023 at 18:06
Is the signature in PGP compressed as well, or just the contents of the message?
Awarded Feb 24, 2023 at 12:31
Will increasing timecost , memorycost , parallelism in argon2ID increase security in general?
Awarded Feb 11, 2023 at 10:36
Why does the challenge need to be prime in Wesolowski's succinct argument of $y=x^{e}$?
Awarded Jan 18, 2023 at 13:35
File integrity checking: why use a hash tree instead of a hash list?
Awarded Jan 15, 2023 at 7:01
Signal's Key Wrap: is it safe and is it custom?
Awarded Jan 14, 2023 at 22:55
Gap in Shamir's Secret Sharing Scheme security proof
Awarded Oct 28, 2022 at 23:52
How to encrypt files using AES256-GCM cipher under Linux?
Awarded Oct 12, 2022 at 15:16
Does Signal Application use Elliptic Curve cryptography for encryption as well?
Awarded Oct 12, 2022 at 5:40
Is the inverse of a point on an elliptic curve over $\mathbb{Z}_p$ always in the group?
Awarded Aug 27, 2022 at 15:12
The Goldreich-Goldwasser-Micali Construction with bad PRGS
Awarded Jul 27, 2022 at 5:51
New paper claims quantum polylog time attack on AES
Awarded Jul 25, 2022 at 7:17
Short padding + known prefix RSA attack
Awarded Jul 7, 2022 at 9:49
When using Ristretto or Decaf with Ed25519 and Ed448, do scalars still need pruning/trimming/clamping?
Awarded May 26, 2022 at 7:16
Example of bad basis for lattices (worst-case for LLL)
Awarded May 13, 2022 at 6:36
Zero knowledge-proof for discrete log that is not honest-verifier
Awarded Mar 10, 2022 at 20:25
RSADP/RSAEP with zero base/message value
Awarded Feb 7, 2022 at 9:47
RSA key generation: why use lcm(p-1, q-1) instead of the totient ϕ(n)?
Awarded Oct 13, 2021 at 11:08
Is the following proof scheme zero-knowledge?
Awarded Aug 14, 2021 at 6:57
Ring signatures in ECC
Awarded Jul 8, 2021 at 23:25
How are new coins minted in Proof of Stake systems
Awarded May 30, 2021 at 5:42
Order of target group in bilinear pairing
Awarded Apr 14, 2021 at 18:56
Why OpenSSH prefers ECDSA nistp256 keys over -384 and -521, and those over Ed25519, for host key verification?
Awarded Apr 9, 2021 at 14:56
AES-GCM conformance test
Awarded Apr 9, 2021 at 10:42
Why ssh-gen makes difference between PEM and PKCS8?
Awarded Jan 26, 2021 at 19:52
IND-CCA secure symmetric encryption
Awarded Nov 29, 2020 at 18:20
Non-outsourceable digest-free signature scheme
Awarded Oct 10, 2020 at 16:36
Curve25519 choice of the prime
Awarded Sep 27, 2020 at 13:42
Quantum-secure obfuscation
Awarded Aug 27, 2020 at 16:11
Why is Approximate GCD a hard problem?
Awarded Aug 20, 2020 at 7:00
Is AES-GCM length extension attack possible using authenticated decryption?
Awarded Jun 26, 2020 at 11:33
Why does the Bombe not consider the Ringstellung when determining stecker pairs?
Awarded Jun 13, 2020 at 14:25
How hard is the following q-Strong Diffie-Hellman problem?
Awarded Jun 13, 2020 at 4:40
Discrete Logarithm problem with inverse
Awarded May 18, 2020 at 20:41
What prevents ProtonMail from sending me the wrong public keys?
Awarded Apr 28, 2020 at 15:02
Is this a prg: G'(x) = G(x) ⊕ (x || 0^(l(|x|)-|x|))
Awarded Feb 17, 2020 at 8:45
NTRU and one failed example
Awarded Nov 9, 2019 at 8:30
How does BB84 fare against an attacker who can entangle qubits?
Awarded Sep 30, 2019 at 14:50
libsodium vs gnupg curve25519 compatibility
Awarded Sep 27, 2019 at 16:00
Breaking a XOR cipher of known key length?
Awarded Aug 30, 2019 at 12:10
How does generating random numbers "remove entropy from your system"?
Awarded Aug 26, 2019 at 6:00
Playfair cipher or ADFGX?
Awarded Jul 19, 2019 at 17:20
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