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fgrieu
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3 votes

multiplicative inverse computations on binary galois fields yield partial result when sampled

3 votes
Accepted

Symmetrical encryption with hashing algorithm

4 votes
Accepted

I'm RSA-encrypting a randomly-created AES key. Do I need padding for the RSA?

36 votes
Accepted

Why is HMAC-SHA1 still considered secure?

1 vote

RSA: exploiting consecutive primes

2 votes

How to prove that two hashes correspond to the same original message, without using the message to verify?

0 votes

Is the sum of hashes a suitable hash for sets?

1 vote

Can I use a cryptographic hash function such as sha256 for Randomness Extraction

0 votes
Accepted

Mod operation while verifying an ECDSA signature with SECT233R1

2 votes

Chosen Plain text attack

1 vote
Accepted

Proof that checking if $g^k\bmod p\ne1$ finds a generator of a cyclic group

1 vote

How to achieve encryption at single source and decryption at multiple locations using asymmetric scheme?

4 votes

Create a new signature from existing DSA signatures

5 votes

Does file size significantly affect brute-force time?

2 votes

What is a website's private signing key used to sign?

3 votes
Accepted

How do Pre-image, Second pre-image and collision resistance actually work? How does this affect data integrity?

44 votes
Accepted

Largest integer factored by Shor's algorithm?

0 votes

constructing a straight line from two points not working in integer modulo group

0 votes

Can I get individual data by paillier decryption if we send aggregated encrypted data?

3 votes

Why private key is not used in Camenisch-Lysyanskaya Signature generation?

2 votes
Accepted

How to know if a public key has been created based on the ECDSA algorithm?

11 votes

In which situations is a length-extension attack a problem?

2 votes

(How) can Argon2 be used to create both a hash for authentication and a secret key?

0 votes

Does ECDSA leak information about the message hash?

1 vote
Accepted

Getting bit length of exponentiation result before computation

7 votes
Accepted

Do RSA signatures really need padding?

4 votes
Accepted

Why ISO/IEC 9796 (signature with message recovery) instead of just encrypt the short message with private key?

3 votes

How long does it take to decrypt AES encrypted message with salt(for pbkdf2 key) and iv known

4 votes
Accepted

Is it safe to initialize a random number generator with MD5?

1 vote

Does code signing Certificates need a key Pair? or a single Certificate

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