md5

Implementation of MD5 in C

由 两盒软妹~` 提交于 2019-12-11 16:06:27
问题 I want to implement an MD5 hashing function in a C project, and I want to make my own, because one thing I am afraid of is using someone else's code (mainly because I have trouble understanding such codes). So, I headed straight to the Wiki page for the pseudocode: http://en.wikipedia.org/wiki/MD5 I decided to leave the padding and breaking into 512 bit chunks stuff for later and just start with an MD5 hash of an empty string. Properly padded, it should (I think) look like this: unsigned int

Convert string with HASH MD5 to ToBase64String

由 可紊 提交于 2019-12-11 15:40:29
问题 this is my problem, i have this code that accepts clean text with passwords and returns Base64MD5 hashes private static string GetMd5Base64Pass(string userpwd) { MD5 md5 = new MD5CryptoServiceProvider(); return Convert.ToBase64String(md5.ComputeHash(Encoding.ASCII.GetBytes(userpwd))); } And i need to reuse it to accept MD5 string hashes and return in Base64MD5. i tried to do this: private static string GetMd5Base64PassMD5(string userpwd) { MD5 md5 = new MD5CryptoServiceProvider(); return

md5sum a file that contain the sum itself?

由 ε祈祈猫儿з 提交于 2019-12-11 14:48:46
问题 I have written a small app in C++ consisting of a single EXE file. I want to put in its "about" dialog the md5sum of the executable itself. It should be embedded statically into the executable (so that can be seen from hex editor), rather than computed on the fly. 回答1: As both @Shi & @matthewdaniel have already said, this can't be done directly. However a couple of workarounds are possible: Calculating MD5 of your application, and packaging your executable inside a container app that will

Which one is more secured md5 or whirlpool (hashes) and Why?

由 白昼怎懂夜的黑 提交于 2019-12-11 14:22:26
问题 I am very much new in this cryptography section. I want to raise a question here regarding md5 hashes and whirlpool hashes. So far I have found that md5 can be broken and hence it is not safe to use. I also learned a little bit about whirlpool hashes. Now, my question is "Which one is more secured?" except knowing that md5 can be broken. One more question, i need to know any applications that use both md5 and whirlpool hashes in their program. It would be really helpful for me if anyone can

Convert 'String' to Base64 encode of MD5 'String' in c# .net

由 不羁岁月 提交于 2019-12-11 12:23:20
问题 How can i Convert my password 'String' to Base64 encode of MD5 'String'. Like this string ' password ' to ' X03MO1qnZdYdgyfeuILPmQ== '. Please help me here OR just let me know the technique that how can i convert this ' password ' to ' X03MO1qnZdYdgyfeuILPmQ== '. i will code it myself 回答1: Ok, there is example (vb.net, I'll try to convert in c# using some online converter) : Dim pwd As String = "password" Dim hs As System.Security.Cryptography.MD5 = System.Security.Cryptography.MD5.Create Dim

Trying to convert Perl to PHP

由 本秂侑毒 提交于 2019-12-11 12:03:58
问题 I'm having trouble converting the following code from Perl to PHP. In particular, I'm having trouble with this section, as I have no clue what is happening here: sub md5sum($) { my @ib = unpack("C*", shift); my $encstr = join("", map {sprintf('\%3.3o', $_)} @ib); my ($out) = split(/ /, `printf '$encstr' | md5sum`); return $out; } The main point I'm looking for help on is what does the "C*", shift do in the unpack statement, what's going on in the join part, and what does the | md5sum do at

MD5 Inconsistent between C# and golang

由 五迷三道 提交于 2019-12-11 11:22:57
问题 I am attempting to port an algorithm from C# to go. One step I need is to take the md5 of an array of bytes. I cannot seem to get a consistent hash between C# and go implementations. In C# I can do: new MD5CryptoServiceProvider().ComputeHash(new byte[] { 5 })) and I get [139 182 193 120 56 100 63 150 145 204 106 77 230 197 23 9] In go: md5.New().Sum([]byte{5}) yields: [5 212 29 140 217 143 0 178 4 233 128 9 152 236 248 66 126] Am I doing something wrond, or are the implementations actually

How to Use MD5 Hash for securing Login passwords in JSP with Javascript?

由 拥有回忆 提交于 2019-12-11 09:07:21
问题 How can I use md5 hashing in the client side to secure the password transmission from the client side (JSP) to a Servlet in the server? The following post seems to answer the question but I can not understand it fully as the code blocks are incomplete. http://www.techlabs4u.com/2010/03/how-to-use-salted-md5-hash-for-securing.html 回答1: How can I use md5 hashing in the client side to secure the password transmission from the client side (JSP) to a Servlet in the server? You can't. Password

The mystery of '$.md5 is not a function'

由 丶灬走出姿态 提交于 2019-12-11 07:07:49
问题 I have a js code that uses jQuery.MD5 library. It works perfectly on my server: <head> <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script> <script src="https://example.com/static/js/jquery.md5.js"></script> </head> <body> <script> // my code goes here (declaring variables and functions) var code = $.md5('mystring'); // and a little more code </script> </body> But then I upload it to a web application (which I cannot control), that makes it look like this

unique hash of string

由 与世无争的帅哥 提交于 2019-12-11 06:14:29
问题 I want to create a unique hash (16 chars long) of an arbitrary length String. Is there a good library that implements MD5 or SHA-1 for C++ with which I can achieve this? (and possibly an example of how to use it) 回答1: The Pigeonhole Principle explains why what you ask is impossible regarding uniqueness. 回答2: You need the openssl library. It has implementations of the standard crypto hashes for this purpose. 回答3: nss provides a number of hash and cryptographic algorithms and has a more liberal
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