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Maarten Bodewes♦

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Does the order of validations and MAC with clear text matter?

Awarded May 2 at 17:32

What is the recommended minimum key length for ECDSA signature

Awarded Apr 15 at 10:18

Why is Threefish not widely used?

Awarded Mar 16 at 17:42

CKM_RSA_PKCS vs CKM_RSA_X_509 mechanisms in PKCS#11

Awarded Feb 10 at 14:07

Anatomy of an RSA private key

Awarded Dec 26, 2022 at 1:20

AES256-CBC vs AES256-CTR in SSH

Awarded Dec 6, 2022 at 9:26

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

Awarded Jul 10, 2022 at 8:26

Is the Euler totient shared in the RSA algorithm?

Awarded Jul 10, 2022 at 0:42

Use Initialization Vector as Additional Authenticated Data

Awarded Mar 6, 2022 at 2:35

Comparing Files: Is it better to use multiple hash algorithms or just one?

Awarded Feb 1, 2022 at 16:02

What is wrong with XOR encryption with secure PRNG?

Awarded Jan 8, 2022 at 1:20

What are the differences between ephemeral-static ECDH and static-static ECDH?

Awarded Oct 29, 2021 at 12:06

What is the algorithm behind PasswordDeriveBytes?

Awarded Oct 27, 2021 at 6:27

Encryption of big files in Java with AES/GCM

Awarded Oct 3, 2021 at 21:57

Is HMAC needed for a SHA-3 based MAC?

Awarded Aug 2, 2021 at 18:47

Does perfect forward secrecy (using DH or ECDH) imply quantum resistance?

Awarded Jul 26, 2021 at 13:28

Benefits of functional programming languages

Awarded May 22, 2021 at 11:11

Is it possible that a SHA256 hash has the same hex character over and over again?

Awarded Apr 30, 2021 at 14:48

Is SHA-1 secure when used to implement a PRNG

Awarded Apr 12, 2021 at 3:28

What is different below two Ciphersuites?

Awarded Mar 18, 2021 at 15:00

Should I be using PKCS1 v1.5 or PSS for RSA signatures?

Awarded Mar 17, 2021 at 21:32

What is Deterministic Authenticated Encryption?

Awarded Jan 28, 2021 at 7:55

Why are RSA ciphertexts different for the same plaintext?

Awarded Jan 21, 2021 at 20:27

After 20 years of AES, what are the retrospective changes that should have been made?

Awarded Jan 18, 2021 at 23:40

What's the GCM-SHA 256 of a TLS protocol?

Awarded Jan 11, 2021 at 12:34

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

Awarded Dec 9, 2020 at 9:27

How much safer is RSA-OAEP compared to RSA with PKCS#1 v1.5 padding?

Awarded Nov 27, 2020 at 15:17

Converting normal alphabets to 64 bit plain text

Awarded Oct 24, 2020 at 20:07

How to measure Cycles per Byte of an Algorithm?

Awarded Oct 13, 2020 at 23:06

Smallest possible certificate for IoT device

Awarded Oct 3, 2020 at 9:25

HMAC-SHA256 vs HMAC-SHA512 for JWT API authentication

Awarded Sep 21, 2020 at 8:27

Key exchange using ECDH vs ECIES?

Awarded Aug 27, 2020 at 16:26

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

Awarded Jul 22, 2020 at 14:35

Is it easy to crack a hashed phone number?

Awarded Jul 1, 2020 at 12:05

Can elliptic curve cryptography encrypt with public key and decrypt with private key like RSA?

Awarded Jun 14, 2020 at 21:41

Benchmark differences between SHA-512 and bcrypt

Awarded Jun 4, 2020 at 14:32

Key derivation functions (KDF): What are they, what are their main purposes and how they can be used?

Awarded Apr 18, 2020 at 23:51

How is the key shared in symmetric key cryptography?

Awarded Mar 19, 2020 at 3:05

How many codes can I safely generate using the same HMAC key?

Awarded Mar 13, 2020 at 21:05

What's the difference between PBKDF and SHA and why use them together?

Awarded Mar 3, 2020 at 7:45

How hard is it to guess a 8 digit PIN?

Awarded Jan 16, 2020 at 16:30

Is openssl rand command cryptographically secure?

Awarded Jan 15, 2020 at 16:50

Who is responsible for ensuring the trustworthiness of certificate authorities?

Awarded Dec 11, 2019 at 14:55

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

Awarded Dec 6, 2019 at 12:30

Why does AES-GCM need a hash/MAC in TLS?

Awarded Nov 29, 2019 at 7:40

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

Awarded Oct 29, 2019 at 8:25

Post Quantum Symmetric Cryptography

Awarded Oct 22, 2019 at 11:05

Which of these 3 AES 128 symmetric encrypt/decrypt routines is most secure?

Awarded Oct 1, 2019 at 11:25

Is deriving the IV from the password secure?

Awarded Sep 2, 2019 at 16:40

Spoken encryption

Awarded Jul 26, 2019 at 1:20

What's the appeal of using ChaCha20 instead of AES?

Awarded Jul 18, 2019 at 7:45

How many bits in the resultant hash will change, if the x bits are changed in its the original input?

Awarded Jul 17, 2019 at 11:00

Definition of authenticity

Awarded Jul 10, 2019 at 9:15

Does the size of a ECDSA key determine the hash algorithm?

Awarded May 27, 2019 at 17:10

CBC-Mode Infinite Garble Extension

Awarded May 1, 2019 at 12:40

One Time Pads and "Bit Flip" Attacks

Awarded Feb 12, 2019 at 12:50

Is there a contingency plan in the event of a catastrophic attack on AES?

Awarded Jan 19, 2019 at 3:15

Using Tweets as a Random seed

Awarded Jan 5, 2019 at 22:55

RSA: Is it secure to use the private key to encrypt and the public key to decrypt?

Awarded Nov 27, 2018 at 12:55

Why did TLS 1.3 prohibit PGP authentication?

Awarded Nov 14, 2018 at 9:40

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