What's the advantage of using PBKDF2 vs SHA256 to generate an …
The difference is that: PBKDF2 by design is slow; SHA256 is a good hash function; it is not slow, by design; So if someone were to try a lot of different possible passphrases, say the whole …
About how fast can you brute force PBKDF2? - Stack Overflow
2013年4月29日 · As far as PBKDF2 iterations in specific, one popular GPU based cracking program can handle with a kitted out modern desktop + 8 GPU's at 1 million tries a second …
passwords - With PBKDF2, what is an optimal Hash size in bytes?
2013年1月13日 · PBKDF2 is a key derivation function: it produces an output of configurable size. For password hashing, you want the size to be large enough to deter generic preimage attacks …
.net - Hash Password in C#? Bcrypt/PBKDF2 - Stack Overflow
2004年4月14日 · PBKDF2. You were really close actually. The link you have given shows you how you can call the Rfc2898DeriveBytes function to get PBKDF2 hash results. However, you …
Recommended # of iterations when using PBKDF2-SHA256?
My planned PBKDF2 salt is: a per-user random salt (stored in the clear with each user record) XOR'ed with a global salt. The objective is to increase the cost of brute forcing passwords and …
c# - PBKDF2 using SHA 256 in .NET - Stack Overflow
2018年6月11日 · I need to update some code that is using the PBKDF2 implementation in .Net, Rfc2898DeriveBytes to hash user credentials. It is my understanding that this function uses …
Is there a SQL implementation of PBKDF2? - Stack Overflow
2014年2月25日 · Here's a dramatically faster PBKDF2/PKCS #5/RFC2898 implementation of PBKDF2(HMAC-SHA-512..., useful on SQL2012 and up, including StackOverflow and …
hash - What is the specific reason to prefer bcrypt or PBKDF2 over ...
2016年8月9日 · See this answer for some discussion of bcrypt vs PBKDF2. Though SHA-256-crypt is not PBKDF2, it is similar enough in its performance behaviour on GPU, so the same …
What default parameters uses OpenSSL -pbkdf2? - Stack Overflow
2019年11月12日 · Now I'm trying to do decrypt it in c and to take advantage of pbkdf2 I'm using the function: int PKCS5_PBKDF2_HMAC (const char * pass, int passlen, const unsigned char …
openssl create Pbkdf2 key derivation - Stack Overflow
2022年8月25日 · I want to derivate a hashed password using the Pbkdf2 algorithm. Input: Password, Salt, HashAlgorithm, IterationCount Output: Hash How to perform this with the …