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David Cary's user avatar
David Cary's user avatar
David Cary's user avatar
David Cary
  • Member for 12 years, 10 months
  • Last seen more than a week ago
30 votes
Accepted

How does a rolling code work?

14 votes
Accepted

Types of Cryptography for a 4-8 bit microcontroller

12 votes

Do I have to recompute all hashes if I change the work factor in bcrypt?

12 votes
Accepted

Uncompress password protected WinRar file without password

11 votes

Analog encryption algorithms

10 votes
Accepted

Is there any research on the problem of making a number more memorable to humans?

9 votes
Accepted

Convert old and busted password encryption to something sensible

8 votes

The difference between being not strongly collision resistant, and not weakly collision resistant?

8 votes

Any efficient text-based steganographic schemes?

7 votes

Key management for military GPS receivers

6 votes

Are there cryptographic hash functions with homomorphic properties?

6 votes
Accepted

Is it possible to subtract/multiply numbers using homomorphic encryption?

6 votes

Is there a cryptographic algorithm which is immune to side channel attacks?

6 votes

Cryptographic GUID?

6 votes
Accepted

Is the following symmetric design secure?

6 votes

Alphabetic Substitution with Symbols

5 votes

Encryption vs. decryption of same plaintext

5 votes

What are some hashes that do not exhibit the avalanche effect?

5 votes

How secure is a pronounceable password in terms of entropy?

5 votes

ASCII to same-length ASCII encryption?

5 votes

How feasible is word-level frequency analysis over English (or any language)?

5 votes

Good challenges for a crypto competition for teenagers

4 votes

Repeatable crypto

4 votes
Accepted

Encrypting a short phrase into two keys. both with length of 32letters

4 votes

Is deniable error-correction possible?

4 votes
Accepted

Secure private key storage

4 votes
Accepted

Looking for cipher that uses one ciphertext

4 votes
Accepted

AES Algorithm processing time in Arduino vs Raspberry Pi

4 votes

Can we use LEGO bricks to construct a cipher algorithm?

3 votes

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