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mat
  • Member for 7 years, 9 months
  • Last seen more than a month ago
  • Vienna, Austria
21 votes

What is the key size currently used by RSA and Diffie-Hellman for secure communication over Internet?

14 votes

How to encrypt the number one using RSA?

9 votes

What is the difference between a Stream cipher and a Symmetric Encryption algorithm?

6 votes

2way cryptography

6 votes

How I can attach a signed hash to a file?

6 votes
Accepted

X3DH protocol - What are One-time prekeys for?

5 votes

AES-GCM: What can be done if 'H' is known by an attacker

5 votes
Accepted

What are the advantages of AES-128 cascade vs AES-256?

4 votes

openssl sha1 message digest not matching with NIST vector input?

4 votes

What are the implications of an encrypted private key being released?

4 votes
Accepted

What's the maximum length for AAD in GCM?

4 votes

GCM as a general purpose cryptographic hash?

4 votes

Key generation for AES-GCM-256 file encryption

4 votes

Why does openssl derive IVs from a password?

3 votes
Accepted

Security concern with TOTP

3 votes
Accepted

Diffie-Hellman protocol: Clarifications

3 votes
Accepted

Recommended way to Implement One Time Password?

3 votes

(Re) How to validate AES decryption was successful?

3 votes
Accepted

Are there any online, single pass, AE with associated data auth?

3 votes
Accepted

What is the best way to derive a encryption key from the serial number?

3 votes

Where can I find test vectors for ciphers?

2 votes

Digital Certificates genereted from Hardware Security Module

2 votes

Is it possible to have a PAdES signature with only a timestamp?

2 votes

Derive a secret from an RSA private key

2 votes

Why do new versions of TLS use an explicit IV for CBC suites?

2 votes

Remotely Verify File Timestamp

2 votes
Accepted

Nomenclature of Certificate Authorities and Certificates in PKI

2 votes

Determining key size in bits by knowing plaintext and ciphertext

2 votes
Accepted

Is it safe to include the public certificate in xml digital signatures?

2 votes
Accepted

Deterministic Encryption with AES GCM - how to choose the IV (nonce)