pbkdf2

I am trying to use PKCS5_PBKDF2_HMAC_SHA1() and below is my sample program. I wanted to make sure if my result of PKCS5_PBKDF2_HMAC_SHA1() is correct so I verified the same with the website http://anandam.name/pbkdf2/ and I see a different result. Am I using the API correctly? I am having doubts if I am passing salt value correctly. I have pasted my result and website result after the program. Please help me understand this. #include <stdio.h> #include <types.h> #include <string.h> #include <stdio.h> #include <stdlib.h> #include <malloc.h> #include <openssl/hmac.h> #include <openssl/evp.h>

I want to generate a derived hash of a password using PBKDF2 with SHA256. with this SecretKeyFactory.getInstance("PBKDF2WithHmacSHA1") this work but it use SHA1. With SecretKeyFactory.getInstance("PBKDF2WithHmacSHA256") (or SecretKeyFactory.getInstance("PBKDF2WithHmacSHA256","SC") when with spongycastle) i have an error. How can i succeed to generate a hash using PBKDF2WithHmacSHA256? If you use version 1.47 or higher of SpongyCastle, you can invoke PBKDF2WithHmacSHA256 directly: PKCS5S2ParametersGenerator generator = new PKCS5S2ParametersGenerator(new SHA256Digest()); generator.init

I've being messing around the C# Bouncy Castle API to find how to do a PBKDF2 key derivation. I am really clueless right now. I tried reading through the Pkcs5S2ParametersGenerator.cs and PBKDF2Params.cs files but i really cant figure out how to do it. According to the research I have done so far, PBKDF2 requires a string (or char[]) which is the password, a salt and an iteration count. So far the most promising and most obvious i've come so far is the PBKDF2Params and Pkcs5S2ParametersGenerator. None of these seems to be accepting a string or a char[]. Has anyone done this in C# or have any

Is there any reliable implementation of PBKDF2-HMAC-SHA256 for JAVA? I used to encrypt using bouncycastle but it does not provide PBKDF2WithHmacSHA256'. I do not want to write crypto module by myself. Could you recommend any alternative library or algorithm (if i can stick with bouncycastle) (here are the algorithms that bouncycastle supports) http://www.bouncycastle.org/specifications.html Using BouncyCastle classes directly: PKCS5S2ParametersGenerator gen = new PKCS5S2ParametersGenerator(new SHA256Digest()); gen.init("password".getBytes("UTF-8"), "salt".getBytes(), 4096); byte[] dk = (

I'm trying to securely store a password in a database and for that I chose to store its hash generated using the PBKDF2 function. I want to do this using the bouncy castle library but I don't know why I cannot get it to work by using the JCE interface... The problem is that generating the hash in 3 different modes: 1. using the PBKDF2WithHmacSHA1 secret key factory provided by sun 2. using the bouncy castle api directly 3. using the bouncy castle through JCE results in 2 distinct values: one common to the first two and one for the third. Here is my code: //Mode 1 SecretKeyFactory factory =

I'm trying to setup AES encryption / decryption using the javascript library SlowAES and the RijndaelManaged class in .NET. I chose this method after reading this post , where Cheeso has managed to get these two encryption methods to play together "In my tests of the COM-wrapped-SlowAEs, I used CBC mode, and the encryption was completely compatible with the RijndaelManaged class in .NET" - Cheeso I've taken the javascript code from Cheeso's Windows Scripting Component, the latest slowaes libraries, and using the following javascript script to test: var key = "12345678901234567890123456789012";

I have following code in C# PasswordDeriveBytes DerivedPassword = new PasswordDeriveBytes(Password, SaltValueBytes, HashAlgorithm, PasswordIterations); byte[] KeyBytes = DerivedPassword.GetBytes(32); I am using "SHA1" hashing algorithm. According to SHA1 definition, its generate 160 bits (20 bytes) key. My question is how GetBytes method get 32 bytes from DerivedPassword, what algorithm used behind GetBytes method? poupou Microsoft's implementation of original PKCS#5 (aka PBKDF1) include insecure extensions to provide more bytes than the hash function can provide (see bug reports here and here

I'm trying to use CommonCrypto to generate keys using PBKDF2 but I can't seem to import CommonCrypto/CommonKeyDerivation.h , I just errors that it is not found. Any ideas? edit: I should probably mention I have already added the security framework and I can import all of the other CommonCrypto headers. Here's how i generate AES256 keys. The only interesting this is that i get CommonCrypto to estimate for me how many rounds to use. It seems pretty straightforwards. #import <CommonCrypto/CommonKeyDerivation.h> ... // Makes a random 256-bit salt - (NSData*)generateSalt256 { unsigned char salt[32]