Cryptography Stack Exchange

0

votes

0

answers

9

views

Build a PEM file by having ec public key coordinates

public-key elliptic-curves

modified 31 mins ago Vito Lipari 1

2

votes

1

answer

14

views

Static Diffie-Hellman in TLS

modified 36 mins ago Maarten Bodewes♦ 56.6k

2

votes

1

answer

41

views

MPC and Secret Sharing in not Fully-Connected Network

modified 36 mins ago Geoffroy Couteau 10.4k

0

votes

1

answer

15

views

curve25519 by openSSL

elliptic-curves openssl key-generation elliptic-curve-generation

answered 48 mins ago Frank Denis 1,263

0

votes

0

answers

6

views

how to compute Bit Independence criterion of SBOX?

encryption aes s-boxes

asked 55 mins ago Mehmet Özcan 1

1

vote

0

answers

8

views

NIZK proof for Order-preserving encryption

zero-knowledge-proofs order-preserving

asked 1 hour ago user70063 6

3

votes

1

answer

1k

views

In which public key encryption algorithms are the private and public key not reversible?

rsa public-key paillier

modified 1 hour ago Nobody 103

-2

votes

3

answers

714

views

Why the AES perform encryption in 10 rounds Instead of one?

aes xor

answered 2 hours ago IBRAHIM 1

0

votes

0

answers

18

views

Zero knowledge proof with sum

zero-knowledge-proofs

asked 3 hours ago mip 58

0

votes

2

answers

55

views

What is a cryptocoin made of?

implementation

modified 4 hours ago fgrieu 83.1k

0

votes

1

answer

246

views

Explain the fast Walsh–Hadamard transform in simple steps or pseudocode

s-boxes

modified 4 hours ago Community♦ 1

1

vote

1

answer

23

views

Explain mixing bijection with an example

aes bijection

modified 5 hours ago forest 6,156

2

votes

0

answers

140

views

+100

Can future Bitcoin hashes be considered a good source to generate random numbers?

randomness pseudo-random-generator

modified 5 hours ago Patriot 539

1

vote

0

answers

83

views

+50

Signal Protocol - One Time Pre Keys (OTPK)

ed25519 ephemeral signal-protocol

modified 5 hours ago OughtToPrevail 119

1

vote

1

answer

113

views

AES Diffusion at Block Level

aes block-cipher diffusion

modified 5 hours ago Community♦ 1

0

votes

1

answer

38

views

Explanation of trace function $\operatorname{Tr}_m(x) = x^{2^{m}} \oplus x$

finite-field

answered 7 hours ago Dilip Sarwate 2,244

-1

votes

0

answers

12

views

How is an Encrypted iTunes Backup's Manifest.db encrypted?

encryption file-encryption

asked 10 hours ago forgehe 1

0

votes

0

answers

12

views

Security of HOTP over an unencrypted channel for controling an actuator

transport-security hotp

asked 11 hours ago user3368561 268

1

vote

0

answers

16

views

Do AEAD algorithms and encrypt-then-MAC mitigate external decryption oracles?

mac authenticated-encryption padding-oracle decryption-oracle

asked 12 hours ago user70055 6

0

votes

1

answer

66

views

Can you defeat AES-CTR's birthday boundary with a 2nd AES?

aes pseudo-random-function ctr

modified 16 hours ago Future Security 2,117

2

votes

1

answer

77

views

Other than an exponent greater than 1, what are the considerations when creating a random 256-bit private key using Diffie Hellman?

diffie-hellman keys key-exchange

answered 16 hours ago poncho 96.2k

1

vote

2

answers

126

views

Fiat-Shamir paradigm and the forking lemma

signature provable-security random-oracle-model

answered 18 hours ago Mikhail Koipish 336

0

votes

0

answers

401

views

Rabin cryptosystem with 1 mod 4

encryption rabin-cryptosystem

modified 19 hours ago Shamim biswas 1

0

votes

0

answers

21

views

I'm studying about differential cryptanalysis in DES. I need to make the DDT through python [duplicate]

cryptanalysis des

asked 21 hours ago Big Baek 1

1

vote

0

answers

32

views

Estimating the Security of SIS-Based Signature, by verifiying a subset of coordinates?

hash collision-resistance lattice-crypto forgery sis

asked 23 hours ago abdul rahman taleb 99

-1

votes

0

answers

52

views

Will this software licensing scheme work?

license-key copy-protection

modified 23 hours ago Arne Sim 4

0

votes

1

answer

54

views

Understanding hybrid cryptography's concepts: signing and CA

authentication certificates transport-security

modified yesterday Maarten Bodewes♦ 56.6k

-2

votes

0

answers

30

views

How do I solve B in terms of J and other params? xor cipher

encryption xor

asked yesterday x0rz0r 1

1

vote

1

answer

65

views

What is the most efficient lattice problem solving algorithm?

lattice-crypto

modified yesterday forest 6,156

1

vote

1

answer

484

views

Difference between RC2, RC4, RC5 and RC6

encryption rc4

modified yesterday forest 6,156

1

vote

2

answers

104

views

ZKP: Asymmetric encryption with confidential message and known hash

encryption zero-knowledge-proofs

modified yesterday Mohamed 43

6

votes

3

answers

1k

views

How do I produce a stream of secure random numbers from AES-Counter mode?

aes random-number-generator pseudo-random-generator ctr

modified yesterday Zeeshan Abbas 20

1

vote

1

answer

32

views

Reversible Decryption in Symmetric Key Algorithms

algorithm-design symmetric

modified yesterday forest 6,156

0

votes

0

answers

25

views

How many possible keys are in a columnar transposition cipher?

encryption key-size transposition-cipher

modified yesterday blondiefunk69 1

1

vote

1

answer

32

views

Does any problem arise when the order of an elliptic curve is equal to its prime field modulus? [duplicate]

elliptic-curves algorithm-design finite-field elliptic-curve-generation

answered yesterday TLane 23

2

votes

0

answers

39

views

Group Rings on Cryptography

finite-field group-theory complexity

modified yesterday kub0x 444

-1

votes

1

answer

77

views

Retreive secret key and IV knowing the plaintext and ciphertext?

aes cbc

modified yesterday Patriot 539

1

vote

1

answer

108

views

What is “spinal-tap grade” security?

ed25519 ed448

modified yesterday rmalayter 1,672

0

votes

0

answers

11

views

Why in Efs file system (windows OS) is not possible to encrypt directly a compressed file? [migrated]

encryption

asked yesterday Cristian Lorenzetto 11

1

vote

1

answer

38

views

Why does ε-differential privacy protect the subset of 1/ε edges in terms of graphs?

data-privacy differential-privacy

modified yesterday Community♦ 1

3

votes

2

answers

314

views

What is the difference between a Vigenère cipher and a one time pad cipher?

one-time-pad vigenere

modified yesterday Steven Hatzakis 60

0

votes

2

answers

81

views

$\alpha^{2^{m} + 1}$ is a generator of $\operatorname{GF}(2^m)$?

s-boxes

modified yesterday Dilip Sarwate 2,244

18

votes

2

answers

5k

views

SHA-256: (Probabilistic?) partial preimage possible?

brute-force-attack sha-256 cryptocurrency preimage-resistance

answered yesterday JuMo 9

2

votes

1

answer

54

views

How can the Enigma's plugboard settings be found with partially known plaintext?

encryption cryptanalysis classical-cipher enigma

modified yesterday b3nj4m1n 37

0

votes

0

answers

42

views

Encryption/Decryption on multiple users using RSA?

rsa

modified yesterday just_learning 4

3

votes

2

answers

78

views

Is lattice-based cryptography relevant in symmetric cryptography?

symmetric lattice-crypto

modified 2 days ago forest 6,156

5

votes

2

answers

310

views

Performing simple arithmetic operations on compressed, and both compressed and encrypted data

encryption homomorphic-encryption compression

answered 2 days ago David Cary 3,816

Top Questions

Looking for more? Browse the complete list of questions, or popular tags. Help us answer unanswered questions.