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Cryptography

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Share a link to a post later visited by 25 unique IP addresses. This badge can be awarded multiple times.
Awarded 758 times.
Mathematical formula for switching the key for OTP?
Awarded Jul 12, 2016 at 21:47
How was the special DES key 0E329232EA6D0D73 found?
Awarded Jul 7, 2016 at 18:06
Finding sum of two encrypted numbers
Awarded Jul 1, 2016 at 18:07
How long does it take a quantum computer to brute force AES?
Awarded Jul 1, 2016 at 11:54
How does Microsoft's BitLocker Recovery Code work?
Awarded Jun 30, 2016 at 21:23
Which public key cryptosystems are not based on number theory?
Awarded Jun 28, 2016 at 17:17
Did NIST verify “post-quantum” claims in the SHA3 proposal papers?
Awarded Jun 17, 2016 at 20:19
Proof for the SHA3 claim that 256 bit security is "post-quantum sufficient"?
Awarded Jun 17, 2016 at 19:39
Cryptography behind the Turing Imitation Key (TIK)
Awarded Jun 10, 2016 at 16:25
How should I store passwords that need to be available in plain text?
Awarded Jun 9, 2016 at 19:54
Can double-encrypting be easier to break then either algorithm on its own?
Awarded Apr 11, 2016 at 23:35
AES key reuse and guessing the key
Awarded Mar 17, 2016 at 3:11
When NIST disallows the use of 1024-bit keys, what effect will that have on SHA-3 (with max. 512 bits)?
Awarded Dec 18, 2015 at 15:35
How does asymmetric encryption work?
Awarded Aug 9, 2015 at 3:01
Definition of textbook RSA
Awarded Jul 30, 2015 at 17:37
How much would it cost in U.S. dollars to brute-force a 256-bit key in a year?
Awarded Jul 23, 2015 at 22:43
How do we know a cryptographic primitive won't suddenly fail?
Awarded Jun 7, 2015 at 5:31
If you hashed a hash an infinite number of times would you end up with a unique hash?
Awarded Jun 1, 2015 at 17:13
Advantage of AES(Rijndael) over Twofish and Serpent
Awarded Feb 23, 2015 at 18:12
Rijndael vs. Serpent vs. Twofish: General comparison
Awarded Feb 19, 2015 at 6:48
Good enough deterministic PRNG based on hashes
Awarded Jan 22, 2015 at 2:05
Now that quantum computers have been out for a while, has RSA been cracked?
Awarded Sep 28, 2014 at 14:19
Finding hash almost-collisions
Awarded Aug 17, 2014 at 23:44
What is Attribute Based Encryption?
Awarded Aug 7, 2014 at 22:33
What are the differences between a digital signature, a MAC and a hash?
Awarded Jul 7, 2014 at 17:19
How exactly is "true randomness" defined in the realms of cryptography?
Awarded Jun 4, 2014 at 5:00
What stops the Multiply-With-Carry RNG from being a Cryptographically Secure PRNG?
Awarded May 31, 2014 at 7:17
Are picture files "random enough" to be usable as a one-time pad?
Awarded Mar 14, 2014 at 7:40
Can we ensure the security of a crypto-algorithm and -implementaton against acoustic cryptanalysis?
Awarded Feb 23, 2014 at 12:54
What to watch for with openssl generating weak keys? (low entropy)
Awarded Sep 23, 2013 at 21:55
Is SSH public key authentication weakened by 'none' cipher?
Awarded Sep 19, 2013 at 17:19
MIT says: mathematical theory behind encryption is wrong. What are the consequences?
Awarded Aug 18, 2013 at 20:38
Is it possible to distinguish a securely-encrypted ciphertext from random noise?
Awarded Jul 25, 2013 at 16:48
Prevent double-spending with decentralized digital currencies without all transactions being public?
Awarded Mar 14, 2013 at 14:05
How does the MOV attack work?
Awarded Jan 17, 2013 at 18:45
How many bits of hash are realistically needed for key verification?
Awarded Jan 3, 2013 at 10:32
Time Capsule cryptography?
Awarded May 11, 2012 at 14:22
Is modern encryption needlessly complicated?
Awarded May 10, 2012 at 16:11
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