md5

My goal is to use the result of an MD5 result to index a hash table. I want to perform a Modulo operation on it to find the appropriate slot in the table. I have tried casting it as an unsigned long long type. When I printed the result, I got a different number every time for the same MD5 hash. The MD5 hash is initially an unsigned char *. Can someone tell me what I am doing wrong? Here is my function: int get_fp_slot(unsigned char * fingerprint, int size) { return (unsigned long long)fingerprint % size; } An MD5 hash is a 128 bit number. So for best performance you should probably keep all

According to Wikipedia, the md5 sum of an empty string is d41d8cd98f00b204e9800998ecf8427e I confirmed this with my md5 library However, when I run echo "" | md5sum in my linux shell, I get 68b329da9893e34099c7d8ad5cb9c940 - In fact, none of my hashes match the output of the md5sum command. Any thoughts on this discrepancy? With that command, you are calculating the md5sum of a single newline character. Try instead: echo -n "" | md5sum You must eliminate the new line that echo produces $ echo -n '' | md5 d41d8cd98f00b204e9800998ecf8427e Try: echo -n | md5sum Without the '-n', echo outputs a

I've been looking for a Classic ASP script that allows me to hash a string using the MD5 algorithm. I need to match this hashed string against the same string in an ASP.NET Page, hashed using .NET's MD5 hashing algorithms. Even though I have found several scripts for Classic ASP that generate the hash, I haven't found one that generates the correct hash using non-English characters (like ñ , for example). Do you know some Classic ASP script that works in this particular case? Note: I have tried these scripts: http://userpages.umbc.edu/~mabzug1/cs/md5/md5.asp http://forums.aspfree.com/code-bank

I am currently working on a Java project and I can't get the http digest authentication working. I tried using the Apache website, but it didn't help. I have a site that requires HTTP digest authentication. DefaultHttpClient httpclient = new DefaultHttpClient(); String hostUrl = "http://somewebsite.com"; String postUrl = "http://somewebsite.com/request"; HttpPost httpPost = new HttpPost(postUrl); String username = "hello"; String password = "world"; HttpHost targetHost = new HttpHost(hostUrl); httpclient.getCredentialsProvider().setCredentials( new AuthScope(hostUrl, AuthScope.ANY_PORT), new

I need a VBA routine to calculate the MD5 hash of a file's contents. I located some examples (e.g., here ) but I found that they crashed when the filename contained certain Unicode characters, so I am trying to tweak the code to avoid that. This code does not result in an error, but it also doesn't return the correct MD5 hash. What's wrong? Public Function FileToMD5Hex(sFileName As String) As String Dim enc Dim bytes Dim outstr As String Dim pos As Integer Set enc = CreateObject("System.Security.Cryptography.MD5CryptoServiceProvider") 'Convert the string to a byte array and hash it bytes =

Is there any way to write a Perl script to calculate the MD5sum of every file in a directory? If so, how could I do this? Well there are many ways to do this but it comes down to two operations you need to preform. You will first need to locate a list of the files you would like to run the check and then you will need to run the md5sum check on each of those files. There is a ton of ways to do this but the following should work for your needs. #!/usr/bin/perl use strict; use warnings; use Digest::MD5 qw(md5_hex); my $dirname = "/home/mgreen/testing/"; opendir( DIR, $dirname ); my @files = sort

I want to make it very clear and simple. What if I have 1gb ram and I'm trying to calculate md5 hash of 2gb file? Currently, I'm doing it this way: private static string Md5Hash(byte[] input) { byte[] hash = MD5.Create().ComputeHash(input); StringBuilder builder = new StringBuilder(32); foreach(byte b in hash) { builder.Append(b.ToString("X2")); } return builder.ToString(); } // I'm using it like: 'Md5.AsString(File.ReadAllBytes(filePath))' So what are your suggestions? Rather than computing the hash of the file after you've completely loaded it into memory, use the overload that takes a