User Q-Club

74

votes

4

answers

11k

views

How come Public key cryptography wasn't discovered earlier?

May 27 '18 at 12:09 Community♦ 1

40

votes

11

answers

12k

views

Differences between industrial and military cryptography

encryption military-encryption

Oct 28 at 16:49 automatictester 387

31

votes

2

answers

4k

views

What are recommended, general strategies to start block-cipher design and/or analysis?

cryptanalysis block-cipher algorithm-design

May 1 '19 at 8:02 forest 11.5k

31

votes

3

answers

7k

views

How practical are side-channel attacks and how much of a concern are they?

cryptanalysis side-channel-attack

Sep 5 at 20:39 fgrieu♦ 110k

29

votes

2

answers

7k

views

Fixed point of the SHA-256 compression function

collision-resistance sha-256

Jun 28 '17 at 17:33 Community♦ 1

26

votes

4

answers

5k

views

What makes Quantum Cryptography secure?

key-exchange key-distribution quantum-key-distribution

Feb 16 at 7:09 Patriot 2,321

25

votes

5

answers

7k

views

Can a hard drive store clear text data that is physically impossible to retrieve?

keys cryptographic-hardware

Feb 9 '18 at 10:32 Baptiste Candellier 101

22

votes

5

answers

4k

views

How useful is NIST's Randomness Beacon for cryptographic use?

randomness standards nist timestamping

Oct 11 '19 at 4:40 Community♦ 1

22

votes

5

answers

8k

views

Desirable S-box properties

s-boxes

Jan 11 '20 at 16:17 Community♦ 1

21

votes

2

answers

2k

views

Choice of multiplication polynomial in Rijndael s-box affine mapping

aes finite-field s-boxes rijndael

Mar 15 '18 at 0:23 Community♦ 1

19

votes

2

answers

1k

views

How were one-time pads and keys historically generated?

one-time-pad classical-cipher history

Jan 31 at 9:37 Patriot 2,321

19

votes

1

answer

707

views

Quantum complexity of LWE

post-quantum-cryptography factoring complexity lattice-crypto

Jun 8 '18 at 14:28 floor cat 204

18

votes

1

answer

772

views

Message-Recovery variant of Ed25519 signature?

ed25519 message-recovery

Apr 17 at 12:07 Tobu 103

16

votes

0

answers

312

views

Adding bit constants to the key schedule to reduce rounds?

reference-request lfsr feistel-network differential-analysis

Jan 29 '20 at 15:52 b degnan 4,482

16

votes

2

answers

22k

views

What is the difference between SHA-3 and SHA-256?

sha-256 sha-3

Mar 30 '19 at 0:17 Community♦ 1

14

votes

1

answer

1k

views

Doubt about published test vectors for gimli hash

hash test-vectors gimli

Aug 21 '17 at 22:26 Biv 9,561

14

votes

3

answers

1k

views

Can we ensure the security of a crypto-algorithm and -implementaton against acoustic cryptanalysis?

rsa cryptanalysis keys key-recovery acoustic-cryptanalysis

Aug 7 '14 at 14:09 Community♦ 1

13

votes

0

answers

179

views

Space complexity of quantum collision search?

cryptanalysis collision-resistance reference-request quantum-cryptanalysis

Sep 8 '19 at 0:44 forest 11.5k

12

votes

3

answers

10k

views

What is the difference between SHA-3(Keccak) and previous generation SHA algorithms?

hash algorithm-design sha-1 sha-2 sha-3

Apr 27 '16 at 17:35 e-sushi 16.9k

11

votes

3

answers

3k

views

How to evaluate chi squared result?

random-number-generator randomness

Mar 21 '19 at 17:06 Squeamish Ossifrage 42.9k

11

votes

3

answers

2k

views

How small is negligible?

security-definition negligible

Aug 26 '18 at 10:49 Paul Uszak 12k

10

votes

2

answers

1k

views

Why is pqRSA in the NIST PQC submissions?

rsa post-quantum-cryptography nist multi-prime-rsa

May 28 '18 at 14:10 Mike Ounsworth 3,128

10

votes

1

answer

880

views

Collision resistance of hash function built on modular exponentiation

hash rsa collision-resistance

Jan 3 at 1:47 forest 11.5k

10

votes

2

answers

243

views

Historic Authentication Schemes Before Computers

authentication classical-cipher history

Feb 2 '18 at 20:01 Ella Rose 18.8k

10

votes

1

answer

323

views

AES cache-timing attacks and nonce-based operation modes

aes gcm timing-attack ccm

Aug 28 '18 at 20:01 Community♦ 1

10

votes

2

answers

315

views

Which symmetric encryption systems, pseudorandom number generators, and hash functions are best suited for reversible computers?

encryption hash pseudo-random-generator

Mar 3 '18 at 20:54 Joseph Van Name 1

9

votes

1

answer

495

views

Are there any security issues when replacing the SHA-256 initialisation values?

cryptanalysis algorithm-design reference-request implementation sha-256

Mar 12 '17 at 12:27 Community♦ 1

9

votes

2

answers

4k

views

Definitions of secrecy

perfect-secrecy forward-secrecy

Sep 14 '18 at 5:34 Shan Chen 2,515

8

votes

1

answer

202

views

Can the lengths of HTTPS requests be used to deduce which public pages on a site are visited?

tls side-channel-attack

May 8 '19 at 5:20 Community♦ 1

8

votes

2

answers

982

views

What criteria make the theta step of Keccak's round function reversible?

sha-3 keccak function-evaluation

Jun 6 '17 at 6:20 Q-Club 1

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How come Public key cryptography wasn't discovered earlier?

Differences between industrial and military cryptography

What are recommended, general strategies to start block-cipher design and/or analysis?

How practical are side-channel attacks and how much of a concern are they?

Fixed point of the SHA-256 compression function

What makes Quantum Cryptography secure?

Can a hard drive store clear text data that is physically impossible to retrieve?

How useful is NIST's Randomness Beacon for cryptographic use?

Desirable S-box properties

Choice of multiplication polynomial in Rijndael s-box affine mapping

How were one-time pads and keys historically generated?

Quantum complexity of LWE

Message-Recovery variant of Ed25519 signature?

Adding bit constants to the key schedule to reduce rounds?

What is the difference between SHA-3 and SHA-256?

Doubt about published test vectors for gimli hash

Can we ensure the security of a crypto-algorithm and -implementaton against acoustic cryptanalysis?

Space complexity of quantum collision search?

What is the difference between SHA-3(Keccak) and previous generation SHA algorithms?

How to evaluate chi squared result?

How small is negligible?

Why is pqRSA in the NIST PQC submissions?

Collision resistance of hash function built on modular exponentiation

Historic Authentication Schemes Before Computers

AES cache-timing attacks and nonce-based operation modes

Which symmetric encryption systems, pseudorandom number generators, and hash functions are best suited for reversible computers?

Are there any security issues when replacing the SHA-256 initialisation values?

Definitions of secrecy

Can the lengths of HTTPS requests be used to deduce which public pages on a site are visited?

What criteria make the theta step of Keccak's round function reversible?