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Answer a question more than 60 days later with score of 5 or more. This badge can be awarded multiple times.

e-sushi

17.4k12 gold badges78 silver badges217 bronze badges

earned this badge 18 times.

Is it possible to make time-locked encrytion algorithm?

Awarded Jul 8 at 20:36

What current authenticated key exchange standards exist?

Awarded Sep 10, 2021 at 13:50

What is the chance of a collision when using SHA-3?

Awarded Dec 26, 2019 at 22:45

How to prove the security of the PRNG?

Awarded May 21, 2019 at 15:40

Are there two known strings which have the same MD5 hash value?

Awarded Apr 20, 2018 at 9:49

Rule 30 Cellular Automaton for Cryptography

Awarded Mar 7, 2018 at 5:44

Is HIMMO For Real?

Awarded May 17, 2017 at 11:36

Desirable S-box properties

Awarded Mar 13, 2017 at 11:54

The exact difference between a permutation and a substitution

Awarded Jan 5, 2017 at 22:29

How does one verify a GPG/PGP key revocation?

Awarded Dec 28, 2016 at 19:55

Would it be secure to use random numbers from random.org in a cryptographic solution?

Awarded Oct 3, 2016 at 3:02

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

Awarded Oct 17, 2014 at 10:25

Do any non-US ciphers exist?

Awarded Aug 31, 2014 at 12:37

Is Chaocipher a secure cipher under ciphertext-only attack?

Awarded Aug 20, 2014 at 0:47

Webcam random number generator

Awarded May 15, 2014 at 20:29

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

Awarded Apr 29, 2014 at 18:05

What's the state of the attack to get the first pre-image on MD4?

Awarded Feb 23, 2014 at 12:44

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

Awarded Feb 23, 2014 at 12:44

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