Hi folks. I have this code :- using (System.Security.Cryptography.SHA256 sha2 = new System.Security.Cryptography.SHA256Managed()) { .. } Do I need to put this line of code, just BEFORE I leave that dispose scope .. or does the dispose 'call' that already. sha2.Clear(); ...
Hello guys, I need to store sensitive data (usernames and passwords) and wanted to do things the right way (storing SHA-256 hashes of (password).(large random number) instead of cleartext passwords. This needs to be done using MySQL and, as far as i know, only MySQL 6 plans to incorporate SHA-2, hence i assume some kind of external appl...
I read that SHA-1 is being retired from the FIPS 180-2 standard. Apparently there are weaknesses in SHA-1 that led to this decision. Can anyone elaborate on the basis for that decision? Are there implications for the use of SHA-1 in commercial applications? My real questions are: What is the state of SHA-2 support in various cl...
Hi all, Is it possible to create a certificate template that uses SHA-2 (sha256, sha224, sha384, sha512), from a Windows server 2003 CA? I know how to do it in Windows server 2008 based CA, with the new version (version 3) - it is possible to specify the hash algorithm (Under the "Cryptography" tab of the template properties). But is i...
Is calculating an MD5 hash less CPU intensive than SHA-1 or SHA-2 on "standard" laptop x86 hardware? I'm interested in general information, not specific to a certain chip. UPDATE: In my case, I'm interested in calculating the hash of a file. If file-size matters, let's assume its 300K. ...
Hello, I am trying to implement SHA2 encryption instead SHA1. For this, I know that bit number between these two hash algorithms are different and it confuses me. How can this be achieved and at what parts do I need to make required changes. I can use any open source library from Java, Python and any other major programming language....
Is there any way to use Open SSL without any SHA1 hash functions and using one of SHA2 functions instead of it? I think firstly, I should find all the functions that call SHA1 algorithm, and I should understand why SHA1 is still used. While changing the hash function, the bits are different in SHA1 and SHA2 so it may cause some problems....
If I use MD5, as an example, twice with some data, will it increase the probability of collision? And what about SHA? I am asking this because I thought of hashing a password in the client and then again in the server. ...
Hi, How can I sign digitally a string with SHA-2 by PowerShell script, not using OpenSSL? I know how to do it with OpenSSL, but I'm wondering if there is a way to do it with .Net classes. Thank you. ...
Hi, I am now creating a sha2 login form after researching and asking for help around online, I find the example code from this link below is quite useful and practical (I hope I am right!??), the only thing I don't understand is the way this programmer wrote the function and getting the salt value from the function. http://hungred.com/...