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Maarten Bodewes's user avatar
Maarten Bodewes's user avatar
Maarten Bodewes's user avatar
Maarten Bodewes
Moderator
  • Member for 12 years, 7 months
  • Last seen this week
  • Doggerland II
12 votes
Accepted

Encryption of big files in Java with AES/GCM

12 votes
Accepted

Why can't we use the first block of AES-CBC as MAC

12 votes

Is it possible to reduce the size of an RSA key?

12 votes
Accepted

Combining several symmetric ciphers using XOR

12 votes

Smallest possible certificate for IoT device

11 votes
Accepted

Definition of authenticity

11 votes

Time taken for a brute force attack on a key size of 64-bits

11 votes

Is there something wrong with my decryption using key=9, mod 26?

11 votes
Accepted

What is Deterministic Authenticated Encryption?

11 votes
Accepted

Do all ciphers have equivalent decryption keys?

11 votes

Is HMAC needed for a SHA-3 based MAC?

11 votes
Accepted

Why are RSA ciphertexts different for the same plaintext?

11 votes
Accepted

The difference between MAC algorithms and what to use

11 votes
Accepted

Building a combined encryption scheme from two encryption schemes that's secure if at least on of them is secure

11 votes

How is the key shared in symmetric key cryptography?

11 votes
Accepted

AES256-CBC vs AES256-CTR in SSH

11 votes

Are there any benefits to using ECB over CBC?

11 votes
Accepted

Can I use MAC as CTR mode nonce, if my messages are non-repeating?

11 votes
Accepted

Use Initialization Vector as Additional Authenticated Data

11 votes
Accepted

What is the recommended minimum key length for ECDSA signature

11 votes

Who is responsible for ensuring the trustworthiness of certificate authorities?

11 votes
Accepted

TLS 1.2 is still secure or should we move to TLS 1.3?

11 votes

Converting normal alphabets to 64 bit plain text

11 votes

Can I base a public-key cryptosystem only on a hash algorithm?

10 votes
Accepted

Is using RSA with SHA-1 considered as secure as HMAC-SHA-1?

10 votes

How to measure Cycles per Byte of an Algorithm?

10 votes

Why use an RSA public key exponent of form $2^n+1$ instead of $2^n-1$?

10 votes

What encryption should I use: Blowfish, Twofish, or Threefish?

10 votes
Accepted

Anatomy of an RSA private key

10 votes

How long to wait to feed hashing using SHA 256?

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