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Cryptography

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Do KEMs protect against malicious public (encapsulating) keys?
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Awarded yesterday
Understanding CPA security game
Awarded Feb 16 at 8:38
What equation qualifies as a hidden number problem for lattice attack?
Awarded Feb 16 at 3:01
Is the standart GPV-IBE non-isometric?
Awarded Feb 14 at 0:05
19 out of 24 words of BIP39 passphrase (brute-force last 5?)
Awarded Feb 12 at 4:23
What practical power does an attacker gain if a hash function is not strong but weak collision-resistant?
Awarded Feb 4 at 14:31
In RSA, m is greater than n
Awarded Feb 3 at 18:08
Beaver Multiplication Triples in Dynamic Indexing
Awarded Feb 3 at 10:23
Error Correcting Codes: Codeword indistinguishability from random
Awarded Jan 31 at 22:34
Why does semantic security imply EAV security (defined in KL Def 3.8)?
Awarded Jan 24 at 7:08
Is this a possible framework to hide the website that is being accessed from the ISP (without a VPN)?
Awarded Jan 23 at 18:42
Is it safe to repurpose some part or all of the IV for a tweak in a Davies–Meyer compression function hash?
Awarded Jan 23 at 8:41
Mutual authentication vs. parallel unilateral entity authentication
Awarded Jan 21 at 22:11
Should we sign-then-encrypt, or encrypt-then-sign?
Awarded Jan 20 at 8:42
Can multiple hash functions be combined to give rise to a more secure hash function?
Awarded Jan 19 at 22:12
Session IDs in (simple) universal composability
Awarded Jan 18 at 0:47
Do I have the right understanding of Universal Hash, crypto hash, and Random Oracle?
Awarded Jan 15 at 16:10
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Awarded Jan 12 at 10:05
AES-CBC with Fixed IV and known first plaintext block: Modifying a parameter spanning across block boundaries
Awarded Jan 7 at 23:21
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Awarded Jan 4 at 16:49
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Awarded Dec 30, 2025 at 15:00
Does the PRG definition hold for multiple evaluations
Awarded Dec 29, 2025 at 10:26
How cryptographically secure was the original WW2 Enigma machine, from a modern viewpoint?
Awarded Dec 27, 2025 at 6:25
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Awarded Dec 25, 2025 at 8:50
Algebraic Preimage Recovery of the SHA-256 Message Schedule: Case Study of the Bitcoin Genesis Block
Awarded Dec 24, 2025 at 23:46
Is Correlated OT from KOS15/SoftSpokenOT maliciously secure?
Awarded Dec 22, 2025 at 10:23
What are good sources for properly learning cryptography for a mathematician?
Awarded Dec 21, 2025 at 2:11
What is the difference between 'completeness' and 'soundness' in ZKP?
Awarded Dec 18, 2025 at 14:32
Is my recreation of the RSA-129 challenge (n, e=9007, numeric encoding) faithful to the original?
Awarded Dec 17, 2025 at 15:36
What is controversial about adding standalone (non-hybrid) ML-KEM to TLS 1.3?
Awarded Dec 12, 2025 at 21:34
Validity in Byzantine Agreement protocol by Micali-Vaikuntanathan
Awarded Dec 12, 2025 at 16:46
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Awarded Dec 10, 2025 at 14:20
Is this PRF + nullifier + signature construction secure for one-time tokens in a non-currency setting?
Awarded Dec 6, 2025 at 10:40
Can MFA codes be predicted if you know what their values were at a previous time?
Awarded Dec 3, 2025 at 2:54
Carmichael number factoring
Awarded Dec 3, 2025 at 2:54
Does this key-derivation construction achieve context-isolated leakage resilience, and is passphrase rotation secure?
Awarded Nov 26, 2025 at 22:12
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Awarded Nov 20, 2025 at 16:48
Why does the zero-knowledge property only require distribution of transcripts to be indistinguishable rather than requiring the order of messages?
Awarded Nov 19, 2025 at 3:02
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Awarded Nov 16, 2025 at 19:41
Distribution of uniform matrix and discrete Gaussian matrix
Awarded Nov 13, 2025 at 20:34
Keccak SHAKE subsequent fetch can be considered as valid PRNG?
Awarded Nov 12, 2025 at 23:03
Secure backup GPG private key using Secret Sharing?
Awarded Nov 10, 2025 at 19:09
Formal Verification for Multiparty Computation and Homomorphic Encryption?
Awarded Nov 6, 2025 at 20:28
Complexity of calculating Second Least Significant Bit in Discrete Log Problem?
Awarded Nov 5, 2025 at 18:34
Unpredictability of X.509 serial numbers
Awarded Nov 2, 2025 at 7:01
Hash-based public-key encryption
Awarded Oct 24, 2025 at 23:24
What is the security model of a public random permutation?
Awarded Oct 24, 2025 at 20:31
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Awarded Oct 24, 2025 at 12:23
How many plaintext/ciphertext pairs are needed for key recovery attack on 3DES?
Awarded Oct 19, 2025 at 5:57
Code implementing efficient knapsack attacks (Howgrave-Graham and Joux / Becker Coron Joux)?
Awarded Oct 11, 2025 at 19:16
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Awarded Oct 11, 2025 at 14:40
Chacha20 random nonce + counter
Awarded Oct 10, 2025 at 20:31
Vigenere understanding and clarification between modulo, key length, plaintext length, plaintext alphabet length?
Awarded Oct 10, 2025 at 19:54
Proving coefficients of vector of polynomials are binary (LaBRADOR)
Awarded Oct 10, 2025 at 7:50
Is it insecure to use a hash with secret salt instead of a signature?
Awarded Oct 9, 2025 at 19:04
Factor multi-prime RSA
Awarded Oct 6, 2025 at 11:46
Using size of encrypted content to guess corresponding plaintext
Awarded Oct 4, 2025 at 21:50
Application of True Randomness generators in Cryptography
Awarded Oct 2, 2025 at 22:02
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