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e-sushi
  • Member for 9 years, 1 month
  • Last seen more than a month ago
61 votes
Accepted

Kerckhoffs’ principles – Why should I make my cipher public?

39 votes

Why can't we reverse hashes?

37 votes
Accepted

How cryptographically secure was the original WW2 Enigma machine, from a modern viewpoint?

29 votes

Zero knowledge proof protocol example?

29 votes
Accepted

Is it possible to actually verify a “sponge function” security claim?

29 votes

Are there any known collisions for the SHA (1 & 2) family of hash functions?

20 votes
Accepted

Cryptography vs Security

20 votes

Why is SHA-3 a Sponge function?

17 votes

What tests can I do to ensure my random number generator is working correctly?

16 votes

Do any non-US ciphers exist?

16 votes
Accepted

Is base64 the best two-way hash function to encrypt and transmit a set of integer numbers via the internet?

16 votes
Accepted

Why is Curve25519 in the GPG “expert” options?

15 votes

Did non-military cryptography appear in the 50's and 60's only due to NSA leaks?

14 votes
Accepted

Why are cryptography algorithms not exported to certain countries?

14 votes
Accepted

If PGP and GPG both follow the OpenPGP standard, are they 100% compatible in all use cases?

13 votes
Accepted

Fastest random number generator

11 votes

The exact difference between a permutation and a substitution

11 votes
Accepted

How exactly does key whitening manage to increase security?

11 votes

Desirable S-box properties

11 votes
Accepted

Why was the Navajo code not broken by the Japanese in WWII?

11 votes

Cryptographic Challenge: How to Say Something Confidentially to Snowden?

11 votes
Accepted

What changed in PKCS#1 v2.2, and why?

10 votes
Accepted

How does Microsoft's BitLocker Recovery Code work?

10 votes
Accepted

To what extent is WhatsApp's statement on secure messaging realistic?

10 votes

What makes Quantum Cryptography secure?

9 votes
Accepted

What exactly is a “security parameter”?

9 votes

Why is SHA3 prefixed with SHA despite the fact that it is structurally different from SHA2 and SHA1?

9 votes

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

9 votes
Accepted

Do I need to use a CSPRNG when creating salts for user accounts?

9 votes
Accepted

Is the first version of the Message-Digest algorithm by Ronald Rivest publically available?

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