Cryptography

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 Popular Question
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Problem on Elliptic Curve Point Doubling
Awarded 32 mins ago
RSA factorization for special primes $p$ and $q$
Awarded 12 hours ago
Is it possible to derive an Ed25519-public-key from an Ed25519-signature?
Awarded 23 hours ago
What is a simple 8-bit cryptographic hash function that I can use in a quantum simulation of Grover's algorithm?
Awarded 2 days ago
XOR and cipher stream
Awarded Jul 4 at 20:25
What is a purpose of reducing lattice basis?
Awarded Jul 4 at 15:16
Why don't table lookups run in constant time?
Awarded Jul 4 at 9:41
How much entropy is generated by 'random' human keystrokes?
Awarded Jul 4 at 9:26
JWT Login Security
Awarded Jul 4 at 1:30
SSL implementation in windows? [closed]
Awarded Jul 3 at 15:55
GMAC vs HMAC in message forgery and bandwidth
Awarded Jul 1 at 19:33
What's the best block cipher mode of operation for RSA?
Awarded Jul 1 at 17:48
Is it easy to crack a hashed phone number?
Awarded Jul 1 at 12:31
One Time Password generation algorithm to ensure data/transaction integrity?
Awarded Jul 1 at 9:07
How is HMAC(message,key) more secure than Hash(key1+message+key2)
Awarded Jul 1 at 8:01
Man-in-the-middle attack on Diffie-Hellman with shared public keys?
Awarded Jun 30 at 18:57
Designing of Password Authenticated Key Exchange (PAKE) Schemes?
Awarded Jun 30 at 17:36
Implementations of Ntru TLS
Awarded Jun 30 at 11:25
RSA certificate needed in CVC format
Awarded Jun 30 at 7:43
How do SignRecover and VerifyRecover work?
Awarded Jun 30 at 7:18
Do parts of a hash carry the properties of the entire hash?
Awarded Jun 30 at 0:56
Required key size for an ideal cipher with a 32 bit block size
Awarded Jun 29 at 12:40
what problem happen if we always use IV Zero in CBC Mode? [duplicate]
Awarded Jun 29 at 10:28
What does encryption with RSA public key provide?
Awarded Jun 28 at 20:51
2048 bit hashing and 1024 bit symmetric encryption
Awarded Jun 26 at 21:04
Key transport vs key encapsulation?
Awarded Jun 26 at 16:20
How can you change this message which is in block cipher AES-256 in CBC?
Awarded Jun 25 at 15:03
Commutativity of keyed hashes
Awarded Jun 25 at 14:34
Why PS does differ between PKCS1 v1.5 padding for signature and for encryption?
Awarded Jun 25 at 9:05
Chopping off SHA-256 entropy?
Awarded Jun 24 at 20:56
number of blocks, and size of padding at 64bit
Awarded Jun 23 at 21:33
Is zero IV with AES-CBC safe if CPA is not possible and indistinguishability is not an issue?
Awarded Jun 23 at 15:25
How is a ciphertext encrypted using random numbers decrypted using a symmetric key algorithm
Awarded Jun 23 at 9:11
Security implications of the key padding in HMAC
Awarded Jun 22 at 14:26
Are these hash function compositions collision resistant?
Awarded Jun 22 at 13:40
What is the relation between computational security and provable security?
Awarded Jun 22 at 13:18
No of keys used in Triple DES Algorithm
Awarded Jun 21 at 15:10
Is it possible to decrypt a ciphertext with a different private key?
Awarded Jun 21 at 12:47
Cryptographic hasing functions init-update-final
Awarded Jun 21 at 11:33
19 out of 24 words of BIP39 passphrase (brute-force last 5?)
Awarded Jun 21 at 1:26
What is the new attack on OCB2 and how does it work?
Awarded Jun 20 at 22:40
Base Point on elliptic curve
Awarded Jun 19 at 18:56
Is lattice-based cryptography practical?
Awarded Jun 19 at 7:48
Can I still use insecure curves/ciphers for time relevant encryption?
Awarded Jun 18 at 22:42
Benchmark (hash rate) for SHA-3 (SHAKE128)
Awarded Jun 18 at 8:15
Proving correctness of pseudorandom generator construction given existing pseudorandom generator
Awarded Jun 18 at 1:34
Best modern cipher for morse code?
Awarded Jun 16 at 18:57
Is symmetric key encrypted with server's public key secure
Awarded Jun 15 at 21:09
What is the probability of any two users generating the same 128, 256, 2048 bit key?
Awarded Jun 15 at 17:32
How to validate a PBKDF2 password
Awarded Jun 15 at 16:45
Are My Answers to This Hash Question Correct?
Awarded Jun 15 at 15:50
Is this encryption scheme perfectly secure?
Awarded Jun 13 at 7:41
How can Bob validate Alice’s certificate?
Awarded Jun 12 at 20:21
Is the curve25519 algorithm a special(implementation) one of ECDH?
Awarded Jun 12 at 14:26
Conditional probability with Vigenere Cipher given specific plaintexts and key sizes
Awarded Jun 12 at 1:41
Why does DES use a block size of 64 bit?
Awarded Jun 11 at 22:35
Construct rainbow table to break DES for a fixed plaintext
Awarded Jun 11 at 13:48
Random Coin Flip
Awarded Jun 11 at 6:34
Useful additional data to employ in GCM
Awarded Jun 9 at 15:02
Why have hashes when you have MACs?
Awarded Jun 9 at 14:00
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