User Maarten Bodewes

14 votes

Accepted

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

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What is different below two Ciphersuites?

answered Oct 6, 2018 at 14:39

14 votes

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

answered Aug 26, 2018 at 0:28

14 votes

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Post Quantum Symmetric Cryptography

answered Jan 8, 2017 at 1:58

14 votes

Is there any benefit from using SHA-512 over SHA-256 when AES just truncates it anyway?

answered Nov 13, 2016 at 23:28

14 votes

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

answered Oct 21, 2016 at 8:28

14 votes

Is the Euler totient shared in the RSA algorithm?

answered Jul 8, 2022 at 20:37

14 votes

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Why MACs are so important despite digital signatures doing everything a MAC can do and more?

answered Jul 11, 2016 at 17:21

13 votes

Key exchange using ECDH vs ECIES?

answered Jun 5, 2015 at 15:10

13 votes

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

answered Jun 12, 2014 at 22:55

13 votes

Where can I find test vectors for ciphers?

answered Jul 30, 2014 at 8:26

13 votes

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Reusing keys with AES-CBC

answered Sep 22, 2013 at 14:43

13 votes

How big an RSA key is considered secure today?

answered Mar 31, 2012 at 14:14

13 votes

Is there a downside to encrypting too much data with the same key?

answered Mar 5, 2017 at 22:22

13 votes

One Time Pads and "Bit Flip" Attacks

answered Feb 11, 2019 at 18:15

13 votes

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Why is Threefish not widely used?

answered Mar 15 at 17:52

13 votes

Are there attacks on AES with 16-bit keys?

answered May 6, 2016 at 13:10

12 votes

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

answered Mar 26, 2017 at 21:01

12 votes

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Benchmark differences between SHA-512 and bcrypt

answered Apr 12, 2017 at 16:01

12 votes

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

answered Jun 21, 2015 at 10:09

12 votes

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

answered Oct 31, 2015 at 23:48

12 votes

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Combining several symmetric ciphers using XOR

answered Aug 20, 2015 at 10:05

12 votes

Does AES specify error messages when using the wrong password to decrypt?

answered Mar 31, 2012 at 14:07

12 votes

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PBKDF2 for key diversification

answered Feb 12, 2013 at 0:35

12 votes

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CKM_RSA_PKCS vs CKM_RSA_X_509 mechanisms in PKCS#11

answered Aug 31, 2013 at 11:56

12 votes

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

answered Oct 24, 2014 at 15:38

12 votes

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Encryption of big files in Java with AES/GCM

answered Nov 19, 2014 at 10:32

12 votes

Why is SSL on top of TCP?

answered Dec 8, 2017 at 10:31

12 votes

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How can I securely encrypt the same message multiple times?

answered Jul 31, 2018 at 3:28

Stack Exchange Network

1,949 Answers

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?

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

Post Quantum Symmetric Cryptography

Is there any benefit from using SHA-512 over SHA-256 when AES just truncates it anyway?

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

Is the Euler totient shared in the RSA algorithm?

Why MACs are so important despite digital signatures doing everything a MAC can do and more?

Key exchange using ECDH vs ECIES?

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

Where can I find test vectors for ciphers?

Reusing keys with AES-CBC

How big an RSA key is considered secure today?

Is there a downside to encrypting too much data with the same key?

One Time Pads and "Bit Flip" Attacks

Why is Threefish not widely used?

Are there attacks on AES with 16-bit keys?

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

Benchmark differences between SHA-512 and bcrypt

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

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

Combining several symmetric ciphers using XOR

Does AES specify error messages when using the wrong password to decrypt?

PBKDF2 for key diversification

CKM_RSA_PKCS vs CKM_RSA_X_509 mechanisms in PKCS#11

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

Encryption of big files in Java with AES/GCM

Why is SSL on top of TCP?

How can I securely encrypt the same message multiple times?