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  • Member for 9 years, 6 months
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5 votes
Accepted

Why are processes requiring (almost) as much work as brute force considered an "attack" on a hash function?

5 votes

CSIDH: Why do we need ideals in the form of $\langle \ell, \pi \pm 1 \rangle$ in order to apply Vélu's formulas when computing the action?

5 votes

Does exponentiation by squaring work on Montgomery curves?

5 votes
Accepted

Base point in Ed25519?

5 votes
Accepted

In $\mathbb Z/p\mathbb Z$, is $(a+b\cdot r)$ a random value for fixed $a,b$ and random $r$?

4 votes

Difference between Pseudorandom Function vs randomly chosen function

4 votes
Accepted

Analyzing security flaws of cipher

4 votes

Is it a variant of Strong RSA assumption?

4 votes
Accepted

Is xgcd faster than Fermat for calculating $d$ in RSA?

4 votes

can anyone give the java code to encrypt files using paillier

4 votes

Are HTML entities considered a form of cryptography?

4 votes
Accepted

How to compute a smooth-degree isogeny given a generator point of its kernel?

4 votes

One Time Pad - does it work for long plain texts?

4 votes

Can I apply "encrypt with public key and decrypt with private key concept" using ECC certificate?

4 votes

Encrypting a small value $m\in\{1,\dots,100\}$ using textbook RSA

4 votes

Deduce modulus N from public exponent and encrypted data

4 votes
Accepted

How does openssh actually choose the public exponent 'e' when generating a RSA key?

4 votes

Break RSA when modulus is of the form $N = pq$ with $|q^2 - p|$ small

4 votes

Mathematical structure for Sbox

4 votes

How much entropy is lost if 1 character is fixed in HMAC SHA-512?

3 votes
Accepted

Is it safe to encode an entropy this way?

3 votes

How to encrypt/decrypt foreign language

3 votes

What does "with all but negligible probability" mean?

3 votes
Accepted

Discrete logarithm algorithm for modulus power of 2

3 votes

Why are the factors p and q (for n) secret in Fiat-Shamir Authentication?

3 votes

server_host_key_algorithms in SSH

3 votes
Accepted

Cardinality of the group of units in a cyclotomic ring?

3 votes

Security implications of public nonce

3 votes

EdDSA Verification vs. Cofactorless Verification

3 votes
Accepted

CSIDH - The inverse problem