User Q-Club

14

votes

2

answers

20k

views

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

sha-256 sha-3

Mar 30 '19 at 0:17 Community♦ 1

40

votes

11

answers

12k

views

Differences between industrial and military cryptography

encryption military-encryption

Oct 28 at 16:49 automatictester 383

74

votes

4

answers

11k

views

How come Public key cryptography wasn't discovered earlier?

encryption public-key history

May 27 '18 at 12:09 Community♦ 1

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

4

votes

2

answers

8k

views

What happens if a SHA-256 input is too long (longer than 512 bits)?

hash algorithm-design sha-256 merkle-damgaard

Jan 26 '18 at 15:58 e-sushi 16.9k

22

votes

5

answers

7k

views

Desirable S-box properties

s-boxes

Jan 11 '20 at 16:17 Community♦ 1

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

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♦ 108k

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

25

votes

4

answers

5k

views

What makes Quantum Cryptography secure?

key-exchange key-distribution quantum-key-distribution

Nov 15 at 6:08 fgrieu♦ 108k

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 10.8k

1

vote

1

answer

4k

views

I have a encryption png file [closed]

substitution-cipher

May 11 '17 at 22:10 Ilmari Karonen 41.6k

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

11

votes

3

answers

3k

views

How to evaluate chi squared result?

random-number-generator randomness

Mar 21 '19 at 17:06 Squeamish Ossifrage 42.4k

9

votes

2

answers

3k

views

Definitions of secrecy

perfect-secrecy forward-secrecy

Sep 14 '18 at 5:34 Shan Chen 2,505

2

votes

1

answer

3k

views

What is the difference between encrypting and signing in ECC asymmetric algorithm?

encryption public-key elliptic-curves dsa

Oct 5 '17 at 3:41 SAI Peregrinus 3,345

7

votes

1

answer

3k

views

Is the cipher “Kalyna” with a 512-bit key length more secure AES with a 256-bit key?

aes kalyna

Jun 11 '18 at 0:57 e-sushi 16.9k

4

votes

4

answers

2k

views

One-time-pad encryption

one-time-pad

Sep 2 '19 at 13:47 Patriot 1,978

8

votes

3

answers

2k

views

Lightweight cipher using only 8-bit operations

encryption performance lightweight embedded

May 20 '18 at 10:08 fgrieu♦ 108k

7

votes

1

answer

2k

views

How is OID 2a 86 48 86 f7 0d parsed as 1.2.840.113549?

openssl certificates asn.1

Jun 27 '17 at 5:17 fgrieu♦ 108k

1

vote

1

answer

2k

views

AES MixColumns Predefined Lookup 2D Tables and Rcon Predefined Lookup 2D Table

aes reference-request

Sep 26 '18 at 16:11 alyssaeliyah 115

8

votes

2

answers

2k

views

Should the identity of a sender be verified using additional means, or does a MAC suffice?

encryption cryptanalysis authentication mac integrity

Feb 28 '18 at 8:38 Yanira Rodriguez 1

8

votes

2

answers

2k

views

SHAKE-128/256 or SHA3-256/512

encryption sha-3

May 16 '19 at 4:10 Squeamish Ossifrage 42.4k

11

votes

3

answers

2k

views

How small is negligible?

security-definition negligible

Aug 26 '18 at 10:49 Paul Uszak 11.5k

4

votes

3

answers

2k

views

Reusing IV in AES for encrypting file

encryption keys initialization-vector file-encryption

Jun 1 '18 at 0:33 Take That 101 55

4

votes

1

answer

2k

views

Bleichenbacher's Attack on high public exponent RSA keys?

encryption rsa attack

Sep 18 '17 at 10:36 fgrieu♦ 108k

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

6

votes

1

answer

1k

views

RSA attack with continued fractions (Wieners attack)

rsa attack

Mar 9 '18 at 15:02 user94293 1,599

4

votes

1

answer

1k

views

What are the advantages of SM3 and SM4 compared to NIST-approved algorithms (SHA3 and AES)

hash block-cipher nist standards

May 15 '19 at 15:17 Squeamish Ossifrage 42.4k

0

votes

1

answer

1k

views

How to optimise Euclidean Algorithm for large numbers? -RSA

rsa algorithm-design

Jan 16 '18 at 10:19 fgrieu♦ 108k

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

Differences between industrial and military cryptography

How come Public key cryptography wasn't discovered earlier?

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

What happens if a SHA-256 input is too long (longer than 512 bits)?

Desirable S-box properties

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

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?

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

I have a encryption png file [closed]

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

How to evaluate chi squared result?

Definitions of secrecy

What is the difference between encrypting and signing in ECC asymmetric algorithm?

Is the cipher “Kalyna” with a 512-bit key length more secure AES with a 256-bit key?

One-time-pad encryption

Lightweight cipher using only 8-bit operations

How is OID 2a 86 48 86 f7 0d parsed as 1.2.840.113549?

AES MixColumns Predefined Lookup 2D Tables and Rcon Predefined Lookup 2D Table

Should the identity of a sender be verified using additional means, or does a MAC suffice?

SHAKE-128/256 or SHA3-256/512

How small is negligible?

Reusing IV in AES for encrypting file

Bleichenbacher's Attack on high public exponent RSA keys?

Choice of multiplication polynomial in Rijndael s-box affine mapping

RSA attack with continued fractions (Wieners attack)

What are the advantages of SM3 and SM4 compared to NIST-approved algorithms (SHA3 and AES)

How to optimise Euclidean Algorithm for large numbers? -RSA