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cryptanalysis

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8 posts edited

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289 votes cast

151 Bookmarks

Votes Activity Newest Views Added

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Kalyna AddRoundKey

kalyna

Mar 25 '19 at 7:06 forest 10.8k

votes

answers

624

views

LED (AES like) algorithm Decryption-Mixcolumn

Jul 23 '18 at 20:45 Ruben De Smet 1,826

votes

answers

179

views

aside from DES has the NSA ever strengthened algorithms?

des history nsa

Jul 17 '18 at 2:45 neubert 2,539

votes

answer

467

views

Security Implications of Fixed & Opposite Fixed Points of Sbox

s-boxes

Sep 13 '18 at 15:30 hardyrama 1,890

votes

answer

870

views

Is there are a metric based on collisions to compare bad hash functions?

collision-resistance statistical-test

Feb 28 '19 at 16:05 Squeamish Ossifrage 42.4k

votes

answer

216

views

What is the collision resistance of a 2048-bit hash based on SHA-3?

hash algorithm-design collision-resistance

May 28 '18 at 4:56 forest 10.8k

votes

answers

344

views

What is the relationship between entropy conditioning and final output bias in a TRNG?

random-number-generator entropy security-definition

Aug 25 '18 at 0:59 Paul Uszak 11.5k

votes

answer

475

views

How was this Mersenne Twister seed for a 20-character string known a priori found?

pseudo-random-generator brute-force-attack complexity

Apr 15 '18 at 3:07 poncho 115k

votes

answers

views

Rolling your own crypto

encryption hash cryptanalysis algorithm-design collision-resistance

May 2 '18 at 21:02 Ella Rose 18.7k

votes

answers

views

Reusing IV in AES for encrypting file

encryption keys initialization-vector file-encryption

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

votes

answer

194

views

What are the implications of quantum collision search algorithms like Ambainis for collision-resistant hash functions?

hash collision-resistance post-quantum-cryptography quantum-cryptanalysis

Mar 9 '19 at 16:58 Squeamish Ossifrage 42.4k

votes

answers

791

views

Is there any concrete reason to call BLAKE more secure than BLAKE2? [duplicate]

hash blake2

May 29 '18 at 18:58 Squeamish Ossifrage 42.4k

votes

answers

887

views

What telltale signs would indicate that quantum computers are about to become dangerous to classical cryptography?

post-quantum-cryptography quantum-cryptanalysis

Sep 19 '19 at 15:01 Squeamish Ossifrage 42.4k

votes

answer

118

views

For a random permutation $P$, what's the probability of the following event?

collision-resistance provable-security

May 8 '18 at 4:12 bird 41

votes

answers

views

Benchmark (hash rate) for SHA-3 (SHAKE128)

hash brute-force-attack sha-3

May 9 '18 at 13:39 fgrieu♦ 108k

votes

answer

447

views

Is the practice of “security through obscurity” violating Kerckhoffs's second principle?

security-definition

Oct 17 '18 at 11:26 Paul Uszak 11.5k

votes

answers

309

views

Could a 6502 CPU safely compute a SHA-1 hash in a reasonable length of time?

hmac two-factor-authentication

Aug 15 '18 at 19:56 Community♦ 1

votes

answers

931

views

What is the reason of using Pedersen Commitment scheme over HMAC?

hmac commitments

Sep 9 '19 at 18:32 Farid Hajji 66

votes

answer

views

Bleichenbacher's Attack on high public exponent RSA keys?

encryption rsa attack

Sep 18 '17 at 10:36 fgrieu♦ 108k

votes

answer

118

views

What is the expected number of different sequences of bits in the collection that contains $2^{800}$ elements?

hash sha-3 pseudo-random-permutation keccak

Mar 10 '19 at 20:55 Squeamish Ossifrage 42.4k

votes

answers

views

Project Euler Problem 182 Clarification

encryption rsa

Sep 20 '17 at 3:14 Paul Bunn 11

votes

answers

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

votes

answers

views

One-time-pad encryption

one-time-pad

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

votes

answer

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

votes

answer

158

views

Is it reasonable to assume that $\text{Keccak-}f[25n]$ block permutation is defined for any value of $n$?

keccak

Dec 18 '18 at 21:45 Aleph 1,636

votes

answers

347

views

Apply visual cryptography to a video stream?

encryption symmetric visual-cryptography

Feb 14 '18 at 14:44 fgrieu♦ 108k

votes

answers

204

views

Are there any misuse-resistant asymmetric encryption schemes?

encryption rsa siv

Jan 28 '18 at 6:43 Yehuda Lindell 23.7k

votes

answer

261

views

Strength of Hash obtained by XOR of parts of SHA3

hash collision-resistance sha-3 keccak

Mar 11 '18 at 5:53 cypherfox 1,367

votes

answers

215

views

What is an extremely basic asymmetric cipher that I can present at the pub?

signature

Jan 6 '18 at 3:13 Mike Ounsworth 3,035

votes

answers

296

views

Usage and limitations of sponge functions for PRNG

random-number-generator pseudo-random-generator entropy sponge trng

Jul 16 '18 at 23:39 Paul Uszak 11.5k

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Kalyna AddRoundKey

LED (AES like) algorithm Decryption-Mixcolumn

aside from DES has the NSA ever strengthened algorithms?

Security Implications of Fixed & Opposite Fixed Points of Sbox

Is there are a metric based on collisions to compare bad hash functions?

What is the collision resistance of a 2048-bit hash based on SHA-3?

What is the relationship between entropy conditioning and final output bias in a TRNG?

How was this Mersenne Twister seed for a 20-character string known a priori found?

Rolling your own crypto

Reusing IV in AES for encrypting file

What are the implications of quantum collision search algorithms like Ambainis for collision-resistant hash functions?

Is there any concrete reason to call BLAKE more secure than BLAKE2? [duplicate]

What telltale signs would indicate that quantum computers are about to become dangerous to classical cryptography?

For a random permutation $P$, what's the probability of the following event?

Benchmark (hash rate) for SHA-3 (SHAKE128)

Is the practice of “security through obscurity” violating Kerckhoffs's second principle?

Could a 6502 CPU safely compute a SHA-1 hash in a reasonable length of time?

What is the reason of using Pedersen Commitment scheme over HMAC?

Bleichenbacher's Attack on high public exponent RSA keys?

What is the expected number of different sequences of bits in the collection that contains $2^{800}$ elements?

Project Euler Problem 182 Clarification

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

One-time-pad encryption

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

Is it reasonable to assume that $\text{Keccak-}f[25n]$ block permutation is defined for any value of $n$?

Apply visual cryptography to a video stream?

Are there any misuse-resistant asymmetric encryption schemes?

Strength of Hash obtained by XOR of parts of SHA3

What is an extremely basic asymmetric cipher that I can present at the pub?

Usage and limitations of sponge functions for PRNG