Cryptography

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First edit.
Awarded 6554 times.
Using a nonce as a salt for key derivation
Awarded 17 hours ago
Is it necessary to prove EUF-CMA security of blind signature based on one-more type assumption？
Awarded yesterday
Text cipher option that can decrypt the same ciphertext to two DIFFERENT and DESIRED outputs given DIFFERENT keys (and/or alphabet)
Awarded 2 days ago
(post deleted or otherwise unavailable)
Awarded 2 days ago
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Awarded Oct 17 at 20:06
what is a rigorous definition of “proof-of-possession”?
Awarded Oct 16 at 19:19
What do people use non-extractable WebCrypto keys for?
Awarded Oct 15 at 15:43
Side channel attack - execution time depends on the size of the key
Awarded Oct 15 at 11:10
Will a list of all prime numbers upto certain number of bits compromise crytopgraphic algorithms based on prime factorization? [duplicate]
Awarded Oct 14 at 16:56
Need help finding keysize for Vigenere cipher
Awarded Oct 14 at 16:05
Elliptic curve digital signature formats
Awarded Oct 14 at 15:51
Noisy secret sharing
Awarded Oct 13 at 16:42
Is TEA suitable for encrypting/authenticating many short messages?
Awarded Oct 13 at 12:57
What should the nonce value be for client-side encryption?
Awarded Oct 13 at 12:42
Is ChangeCipherSpec a part of handshake message in tls 1.2?
Awarded Oct 13 at 12:04
zeroing out slots in SEAL ciphertext
Awarded Oct 13 at 9:07
(post deleted or otherwise unavailable)
Awarded Oct 13 at 1:07
Fast cryptographic hash function for short inputs
Awarded Oct 12 at 19:20
What is the best way to encrypt whole partitions with Ed448-Goldilocks?
Awarded Oct 11 at 17:12
Encryption and decryption of Request and response for REST API
Awarded Oct 11 at 13:06
(post deleted or otherwise unavailable)
Awarded Oct 10 at 22:42
Is it dangerous to encrypt lots of small files with the same key?
Awarded Oct 8 at 20:11
Is any encryption system that changes keys for each session “forward secure”? [duplicate]
Awarded Oct 7 at 20:04
Generating traceable passwords
Awarded Oct 7 at 14:40
Lattice reduction question regarding the capability of LLL and BKZ
Awarded Oct 5 at 12:11
Can I encrypt a message by swapping bits in the text?
Awarded Oct 5 at 6:06
Can AES GCM mode detect an incorrect key and refuse to decrypt?
Awarded Oct 4 at 21:07
Disrupting MITM attack against 3DES by intermingling plaintext and inter-mediate ciphertext between rounds
Awarded Oct 4 at 13:04
Reusing encrypted message on MITM attack?
Awarded Oct 4 at 12:10
Secret Sharing Domain Questions
Awarded Oct 4 at 10:27
Decomposition of Sbox in three shares x1,x2,x3?
Awarded Oct 3 at 9:40
Threat / Adversary / Trust / Security model, what is the difference? [migrated]
Awarded Oct 2 at 12:58
Can I use different IVs when encrypting identical plaintexts with identical keys with AES-CTR?
Awarded Oct 2 at 11:02
Constructing division gate in R1CS
Awarded Oct 2 at 10:55
Chaining signatures of different parties
Awarded Oct 2 at 6:34
Could a fixed RSA encryption be used instead of a salt to prevent rainbow table attacks?
Awarded Sep 30 at 15:57
What is the size of a 1024-bit RSA cipher compared to its plaintext?
Awarded Sep 30 at 14:33
How to perform encryption/decryption in a RESTful system? [migrated]
Awarded Sep 30 at 12:17
DES : Is Double Encryption using same key twice equivalent to single DES using different key but of same size
Awarded Sep 29 at 17:17
Constructing division gate in R1CS
Awarded Sep 29 at 13:50
Twofish vs. Serpent vs. AES (or a combo)
Awarded Sep 28 at 15:41
What's the difference between digest algorithm and signing algorithm?
Awarded Sep 27 at 20:55
Decrypting an AES string
Awarded Sep 27 at 20:36
(post deleted or otherwise unavailable)
Awarded Sep 27 at 15:15
A known plaintext attack on Elgamal Cryptosystem where the random is fixed
Awarded Sep 27 at 12:33
regarding usage of hashing
Awarded Sep 26 at 15:16
Which is the simplest cryptographic algorithm which is close to commercial-level security?
Awarded Sep 25 at 14:11
Security of a custom AES-based attack model
Awarded Sep 24 at 16:25
Hash function construction
Awarded Sep 24 at 11:55
trust-less blind execution environment (thought experiment)
Awarded Sep 23 at 17:51
Proving security of $\Pi' = E_k(E_k(m))$ knowing $\Pi = E_k(m)$ is secure
Awarded Sep 23 at 16:42
Is it possible to safely implement the Signal Protocol (X3DH) without using XEdDSA
Awarded Sep 23 at 10:21
Possibility of computing a and b values from the ciphertext?
Awarded Sep 22 at 22:18
Attacking a variation of the Vigenere with very long key length
Awarded Sep 22 at 22:11
How to calculate the odds of finding “20” at least three times in a sha256 string?
Awarded Sep 22 at 21:21
OpenSSL cipher suite support / key requirement for ecdhe_ecdsa_with_aes128_cbc_sha256
Awarded Sep 22 at 8:27
1 out of n oblivious transfer
Awarded Sep 21 at 8:06
Is the MD5 algorithm only useful for bytes, rather than bits?
Awarded Sep 20 at 17:16
Can you have perfect secrecy with countable message/key spaces by dropping countable additivity?
Awarded Sep 19 at 20:27
Does the following protocol of secure a matrix satisfy one-time-pad?
Awarded Sep 19 at 12:03
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