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Top Questions
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Top Answers
30
ElGamal with elliptic curves
crypto.stackexchange.com
19
How long would it take to brute force an AES-128 key?
crypto.stackexchange.com
16
If we can find prime numbers larger than 17 milion digits, why can't we find all 1024bit primes?
crypto.stackexchange.com
14
RSA least significant bit oracle attack
crypto.stackexchange.com
11
Why don’t all AES encryption tools produce the same key from the same password?
crypto.stackexchange.com
9
Value of new symmetric key algorithm
crypto.stackexchange.com
9
How secure is XOR-CBC?
crypto.stackexchange.com
9
Why are asymmetric cryptography keys more vulnerable to brute force attack than symmetric ones?
crypto.stackexchange.com
9
Pros and Cons of Block Cipher's Mode of Operations?
crypto.stackexchange.com
9
What is “witness encryption”?
crypto.stackexchange.com
9
Why is the discrete logarithm problem assumed to be hard?
crypto.stackexchange.com
9
What is a Non-Interactive Zero Knowledge Proof?
crypto.stackexchange.com
8
Paillier encryption: Many private keys for a public key
crypto.stackexchange.com
8
What is matrix branching program?
crypto.stackexchange.com
8
Is there a format preserving cryptographically secure hash?
crypto.stackexchange.com
8
Why does SHA-1 have 80 rounds?
crypto.stackexchange.com
8
How to encrypt plain message with RSA
crypto.stackexchange.com
8
Is 128-bit security still considered strong in 2020, within the context of both ECC Asym & Sym ciphers
crypto.stackexchange.com
7
Is the 1st Encrypted Block Less Secure Than Subsequent Ones?
crypto.stackexchange.com
7
What are some disadvantages of homomorphic encryption schemes?
crypto.stackexchange.com
7
Using a SHA512 hash to encrypt data
crypto.stackexchange.com
7
What's a cryptographic primitive, really?
crypto.stackexchange.com
7
How is it decided if $G_1$ and $G_2$ are two “additive” or “multiplicative” cyclic groups?
crypto.stackexchange.com
7
Asymmetry between public key and private key: digital signatures use the private key for “encryption”?
crypto.stackexchange.com
7
Improving Caesar Cipher security
crypto.stackexchange.com
6
Does information theoretical security definition imply DDH, RSA, QR does not hold?
crypto.stackexchange.com
6
Can multiple hashing weaken the password?
crypto.stackexchange.com
6
What if the p and q used in keys generation of Pailler cryptosystem are composite?
crypto.stackexchange.com
6
Security of Deterministic Encryption Scheme
crypto.stackexchange.com
6
Can e = 2 be used in unpadded RSA?
crypto.stackexchange.com
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