User Paul Uszak

60 votes

Accepted

How can hashes be unique if they are limited in number?

answered Apr 8, 2018 at 23:11

37 votes

Why doesn't steganography increase the size of an uncompressed image?

answered Oct 25, 2018 at 15:03

33 votes

Accepted

Differences between industrial and military cryptography

answered Sep 20, 2018 at 12:54

21 votes

Using Tweets as a Random seed

answered Jan 5, 2019 at 14:37

14 votes

Radioactive Decay, Gaussian or Uniform?

answered Jan 5, 2021 at 22:48

14 votes

Why do some people believe that humans are "bad at" generating random numbers/characters like this?

answered Feb 4, 2021 at 4:20

13 votes

Can I say "I have encrypted something" if I hash something?

answered Sep 9, 2019 at 13:15

12 votes

S-box basic question

answered Jul 3, 2017 at 23:27

12 votes

Examples of frauds discovered because someone tried to mimic a random sequence

answered Dec 10, 2022 at 16:19

10 votes

Can you use memory errors as a source of randomness for cryptography?

answered Nov 7, 2017 at 22:54

10 votes

Is there a standard, or widely accepted convention, for magic constants in crypto software?

answered Apr 19, 2017 at 21:52

10 votes

Is a PRG more costly than AES or any other encryption standard?

answered Oct 16, 2018 at 16:57

9 votes

Accepted

Steganography - How many bytes of information can you hide in a $1024 \times 768$ photo?

answered Jun 4, 2017 at 3:01

9 votes

Timing-Safety in JVM-Languages

answered Jul 5, 2017 at 14:59

9 votes

Does Terra Quantum AG break AES and Hash Algorithms?

answered Feb 8, 2021 at 14:25

8 votes

If cryptographic hashes are completely unique, could they theoretically be used to transfer data?

answered Aug 25, 2017 at 3:13

8 votes

Rubik's Cube as Encryption

answered Aug 28, 2017 at 13:29

8 votes

Cryptography's random number problem?

answered Dec 12, 2018 at 23:57

7 votes

Accepted

What's the reason for Monte Carlo tests for block ciphers?

answered Apr 10, 2019 at 21:02

7 votes

Is RC4 secure with a single-use 32-byte random key prefix and 3072 prefix bytes discarded?

answered May 24, 2018 at 15:14

7 votes

How were one-time pads and keys historically generated?

answered Feb 3, 2018 at 2:24

7 votes

Which test suit is better to say if PRNG is CSPRNG:TestU01 or NIST?

answered Apr 30, 2021 at 12:07

7 votes

Accepted

Are the null bytes produced by a True Random Number Generator a security issue when using it as a source of entropy for keys in One-time pad?

answered Jul 25, 2023 at 23:47

6 votes

Key generation from partially random data

answered May 15 at 15:43

6 votes

Would sending audio fragments over a phone call be considered a form of cryptology?

answered May 31, 2023 at 12:29

6 votes

Random number generator issue

answered Mar 27, 2018 at 1:24

6 votes

Time Based encryption

answered May 22, 2018 at 21:52

6 votes

How many bits in the resultant hash will change, if the x bits are changed in its the original input?

answered Jul 16, 2019 at 20:41

6 votes

Why can't we give block ciphers larger keys?

answered Jul 31, 2017 at 1:13

6 votes

Accepted

How likely is a AES KDF bypass?

answered Aug 3, 2017 at 0:37

Stack Exchange Network

488 Answers

How can hashes be unique if they are limited in number?

Why doesn't steganography increase the size of an uncompressed image?

Differences between industrial and military cryptography

Using Tweets as a Random seed

Radioactive Decay, Gaussian or Uniform?

Why do some people believe that humans are "bad at" generating random numbers/characters like this?

Can I say "I have encrypted something" if I hash something?

S-box basic question

Examples of frauds discovered because someone tried to mimic a random sequence

Can you use memory errors as a source of randomness for cryptography?

Is there a standard, or widely accepted convention, for magic constants in crypto software?

Is a PRG more costly than AES or any other encryption standard?

Steganography - How many bytes of information can you hide in a $1024 \times 768$ photo?

Timing-Safety in JVM-Languages

Does Terra Quantum AG break AES and Hash Algorithms?

If cryptographic hashes are completely unique, could they theoretically be used to transfer data?

Rubik's Cube as Encryption

Cryptography's random number problem?

What's the reason for Monte Carlo tests for block ciphers?

Is RC4 secure with a single-use 32-byte random key prefix and 3072 prefix bytes discarded?

How were one-time pads and keys historically generated?

Which test suit is better to say if PRNG is CSPRNG:TestU01 or NIST?

Are the null bytes produced by a True Random Number Generator a security issue when using it as a source of entropy for keys in One-time pad?

Key generation from partially random data

Would sending audio fragments over a phone call be considered a form of cryptology?

Random number generator issue

Time Based encryption

How many bits in the resultant hash will change, if the x bits are changed in its the original input?

Why can't we give block ciphers larger keys?

How likely is a AES KDF bypass?