Cryptography
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3
If you wrote a reversible SHA-256 algorithm, how many “metadata” bits would be required for reversability?
Nov 27 '18 at 19:09
0
Size of A Hashed String Using SHA-512
Nov 12 '18 at 2:27
3
Decrypting SHA-512
Oct 4 '18 at 3:13
3
Is there a consensus on what text encoding to use when hashing a string?
Jul 21 '18 at 5:27
1
How can I create a stream cipher from a block cipher?
Jun 26 '18 at 3:45
4
Is it possible for a cryptographic algorithm to limit the number of times a package/ciphertext can be decrypted?
Jun 21 '18 at 2:17
4
How to interpret the article claiming NIST P-256 curve to be unsafe?
Jun 14 '18 at 3:40
2
Multiple Encryption - One-Time Pad
Jun 14 '18 at 2:37
4
Is it possible to crack a LFSR encrypted file without using bruteforce?
May 5 '18 at 12:52
3
Writing your own Encryption algorithm?
May 3 '18 at 3:54
3
FIPS 140-2, Level 1 validation vs. compilation
Apr 20 '18 at 12:29
4
How to attack RSA with 13 primes
Apr 17 '18 at 11:30
9
Why is SHA3 prefixed with SHA despite the fact that it is structurally different from SHA2 and SHA1?
Mar 14 '18 at 16:42
4
What is an example of asymmetric cryptography?
Mar 12 '18 at 11:34
20
Why is SHA-3 a Sponge function?
Mar 11 '18 at 14:29
1
Anti-spamming hash-based proof-of-work?
Mar 10 '18 at 0:01
0
secretKey ⊕ (secretKey ≪ 1), is randomness lost?
Mar 1 '18 at 18:46
4
Best way to encrypt lots of private keys with the same passphrase
Mar 1 '18 at 17:48
3
Is it generally considered acceptable for app owners to be able to retrieve private keys from users when their apps offer end-to-end encryption?
Feb 8 '18 at 21:31
1
How does Naver Line PC client obtain private key for end-to-end encryption (letter-sealing)?
Feb 8 '18 at 6:00
9
What happens if a SHA-256 input is too long (longer than 512 bits)?
Jan 26 '18 at 7:29
4
What is the difference between these two TLS suites?
Jan 23 '18 at 18:01
4
Has any crypto hash function been proven to be surjective?
Jan 12 '18 at 0:24
1
Someone discover two pair privkey for one address
Jan 6 '18 at 1:54
3
Why is does the protocol of Ding et al. produce biased bits and does it relate to passive security?
Dec 17 '17 at 16:36
1
Exact communication of the IPS compiler?
Dec 17 '17 at 16:24
2
Why is a nonce used to initialize Hash_DRBG, HMAC_DRBG, and CTR_DRBG?
Dec 17 '17 at 16:17
1
Who's talking to who encryption - does this concept work?
Dec 17 '17 at 13:19
2
RSA - What's to stop someone from using the same ciphertext to mimic private key holder?
Dec 16 '17 at 18:48
2
Proof that this is not a secure pseudorandom function?
Dec 15 '17 at 19:02
1
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