User Maarten Bodewes

21 votes

Accepted

Is there any area where AES-CBC cannot be used ? If so, why?

answered Sep 23, 2014 at 21:19

21 votes

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Where is the authentication tag stored in file encrypted using AES-GCM?

answered Apr 26, 2015 at 11:20

21 votes

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

answered Apr 29, 2021 at 13:32

20 votes

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Is openssl rand command cryptographically secure?

answered Apr 20, 2019 at 16:18

20 votes

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Encryption algorithm used in WPA/WPA2

answered Sep 5, 2015 at 19:22

20 votes

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Purpose of DES parity bits

answered Apr 3, 2016 at 1:44

20 votes

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Do key collisions for symmetric ciphers exist?

answered Jun 6, 2016 at 11:59

19 votes

How do RSA and ECDSA differ in signing performance?

answered May 6, 2014 at 0:21

19 votes

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Is a password cyphered by itself as secure as hash?

answered May 28, 2017 at 10:06

19 votes

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Why do key fobs/garage doors openers use rolling codes instead of PGP or SSL encryption?

answered Jan 3, 2017 at 13:35

19 votes

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

answered Apr 12, 2016 at 7:36

18 votes

Accepted

Benefits of functional programming languages

answered May 21, 2021 at 10:16

17 votes

Why was AES CBC removed in TLS 1.3?

answered Oct 26, 2017 at 23:53

17 votes

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

answered Oct 17, 2016 at 19:24

17 votes

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

answered May 1 at 17:30

16 votes

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

answered Jan 17, 2019 at 14:03

16 votes

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HMAC-SHA256 vs HMAC-SHA512 for JWT API authentication

answered Dec 10, 2017 at 0:00

16 votes

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Hash to prime numbers?

answered Oct 10, 2018 at 15:06

16 votes

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AES - What is the advantage of a 256-bit key with a 128-bit block cipher?

answered Dec 22, 2015 at 20:34

16 votes

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On AES, is a true random string enough for a key?

answered Dec 13, 2015 at 17:17

15 votes

Using Tweets as a Random seed

answered Jan 5, 2019 at 12:05

15 votes

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Practical brute-force attack on 128 bit encryption

answered Mar 27, 2015 at 12:22

15 votes

How do hashes really ensure uniqueness?

answered Oct 22, 2018 at 12:14

15 votes

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Is deriving the IV from the password secure?

answered Nov 12, 2016 at 11:06

15 votes

Asymmetry between public key and private key: digital signatures use the private key for “encryption”?

answered Feb 15, 2017 at 10:27

15 votes

If I can crack the AES, how do I crack the wifi

answered Jun 7, 2016 at 19:31

14 votes

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Is it safe to use PBEWithMD5AndDES?

answered Mar 23, 2015 at 11:52

14 votes

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Is python a secure programming language for cryptography?

answered Nov 2, 2014 at 16:13

14 votes

Is there a situation where RSA cannot be replaced with ECC + symmetric algorithms? If no, why do we still use it?

answered May 29, 2018 at 13:26

14 votes

Accepted

What is different below two Ciphersuites?

answered Oct 6, 2018 at 14:39

Stack Exchange Network

1,952 Answers

Is there any area where AES-CBC cannot be used ? If so, why?

Where is the authentication tag stored in file encrypted using AES-GCM?

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

Is openssl rand command cryptographically secure?

Encryption algorithm used in WPA/WPA2

Purpose of DES parity bits

Do key collisions for symmetric ciphers exist?

How do RSA and ECDSA differ in signing performance?

Is a password cyphered by itself as secure as hash?

Why do key fobs/garage doors openers use rolling codes instead of PGP or SSL encryption?

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

Benefits of functional programming languages

Why was AES CBC removed in TLS 1.3?

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

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

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

HMAC-SHA256 vs HMAC-SHA512 for JWT API authentication

Hash to prime numbers?

AES - What is the advantage of a 256-bit key with a 128-bit block cipher?

On AES, is a true random string enough for a key?

Using Tweets as a Random seed

Practical brute-force attack on 128 bit encryption

How do hashes really ensure uniqueness?

Is deriving the IV from the password secure?

Asymmetry between public key and private key: digital signatures use the private key for “encryption”?

If I can crack the AES, how do I crack the wifi

Is it safe to use PBEWithMD5AndDES?

Is python a secure programming language for cryptography?

Is there a situation where RSA cannot be replaced with ECC + symmetric algorithms? If no, why do we still use it?

What is different below two Ciphersuites?