FAQ Database Discussion Community


How to compute a md5 hash in a pre-request script in PostMan?

hash,md5,postman
I have to set a parameter in my request that is a md5 hash of two other parameters. I think a pre-request script can do the job, but I do not know how to compute a md5 in this script. Any idea? Regards, Quentin...

Getting MD5 hash of the files is terribly slow

python,performance,python-2.7,md5,checksum
I'm using the following code to get a MD5 hash for several files with an approx. total size of 1GB: md5 = hashlib.md5() with open(filename,'rb') as f: for chunk in iter(lambda: f.read(128*md5.block_size), b''): md5.update(chunk) fileHash = md5.hexdigest() For me, it's getting it pretty fast as it takes about 3 seconds...

Hash function with ability to define its output generation length

matlab,hash,md5,hashcode,sha
I need to have a hash function in matlab which has capability to define its generated hashing length. For example, MD5 can generated hashing with length of 128 bits. However, I need to define various hashing function with designed lengths such as 10,16,20, ...

How to send an email to an MD5 address

php,md5
I have a database of users that includes an email address that has been encrypted using md5. I want to send an email to one of the users, and want to know if this is possible. In other words, can I send an email using an encrypted field?

Hash generator applet doesn't work fine

hash,md5,javacard
Below, you see an applet that generate hash value of input data based on MD5, RIPEMD160, SHA, SHA224, SHA256, SHA384 and SHA512 : package hashPack; import javacard.framework.*; import javacard.security.CryptoException; import javacard.security.MessageDigest; public class HashMachine extends Applet { //outputArray byte[] hashedValue = new byte[64]; //output Length short OLength = 0x0000; //Defining...

JavaScript File Hash Value Generate with Part of the file

javascript,php,hash,md5,cryptojs
I am working with JavaScript to generate File HASH VALUE for unique file values. Kindly check the below code for the Hash Generation Mechanism Which works good. <script type="text/javascript"> // Reference: https://code.google.com/p/crypto-js/#MD5 function handleFileSelect(evt) { var files = evt.target.files; // FileList object // Loop through the FileList and render image...

MD5 with salt in PHP and JavaScript

javascript,php,security,hash,md5
I need a common hashing method both in php and javascript, something like MD5 or if not MD5 then something to use salt, but to generate same result from php and javascript. What I wanted to do is, I have a series of questions that I will ask user and...

tar archive without metadata

linux,md5,tar,file-attributes
Simple example: tar cf <archive_name> <file_name> md5sum <archive_name> touch <file_name> tar cf <archive_name> <file_name> md5sum <archive_name> Results of md5sum are different. How to avoid this?...

Non Hex Based hash Code

hash,md5,sha1
to make long story short. I was given a Hash code generated from a file, but was not told what kind of function it was generated with. The Hash code was: "IRV4RRFX3Q62YIXLBJMEXANLDE3JPVFT" If i was right in could not be MD5 or sha1 because these are Hex based driven, so...

How do I use Md5 in Indy?

delphi,md5,indy
I need to calculate MD5. Everywhere I search they tell me to use Indy, so ok I have: hasher := TIdHashMessageDigest5.Create; Now I need to call a function numerous times updating the MD5 as I read the stream. How can I do this in Indy? I only see methods like...

Python tarfile and zipfile producing archives with different MD5 for 2 identical files

python,zip,md5,tar
I am trying to ensure that 2 archives with the same files inside produce the same MD5 checksum. For example, file1.txt and file2.txt have identical content, the only difference between them is creation time. However, they produce the same MD5: >>> import md5 >>> md5.md5(open("file1.zip","rb").read()).hexdigest() 'c99e47de6046f141693b9aecdbdd2dc2' >>> md5.md5(open("file2.zip","rb").read()).hexdigest() 'c99e47de6046f141693b9aecdbdd2dc2' However,...

Is it more safe to modify MD5 output?

hash,md5,password-encryption
As an ordinary method, I always used to save MD5 of passwords in database while there are many websites that decode the MD5 hashed data to its original data (using rainbow database). I wonder if it is more safe to modify the output of MD5 function (e.g. omitting the last...

Why TSQL convert a function's result in one way and a character string to other way?

sql,tsql,sql-server-2005,binary,md5
I try this command in SQL Server 2005 to obtain a MD5 from '123': select SUBSTRING(sys.fn_sqlvarbasetostr(HASHBYTES('MD5', '123' )), 3, 32) and I get this result: 202cb962ac59075b964b07152d234b70 I want to convert to binary format, select convert(varbinary(16), SUBSTRING(sys.fn_sqlvarbasetostr(HASHBYTES('MD5', '123')), 3, 32)) And I get this result: 0x32003000320063006200390036003200 Why does this code: select...

Powershell Unable to compare MD5 values from file with MD5 values generated

windows,powershell,compare,md5,cmdlets
I have generated the list of MD5 checksum values from a directory within my project using Powershell's Get-FileHash function and then I exported the values to a .csv file. $path = "C:\Users\Krishnaa\Documents\Visual Studio 2012\Projects\NamePrint\NamePrint\obj\Debug" $hash = Get-FileHash -Path $path\* -Algorithm MD5 $export = $hash | Export-csv $path\hashfile.csv This is how...

Best algorithm to hash a string

algorithm,md5,sha
I want to use algorithm to do hash to long string. I need that to be unique, since I log changes, and don't want to keep the whole string (that may vary from 300 bytes to 1000 bytes). I think of MD5 (maybe sha - I don't know), but does...

java MD5 encryption minus value in byte array

java,encryption,bytearray,md5,message-digest
Hello I am using below code to encrypt a string. I found MD5 make working in -127 - +128 values. I am getting value in minus for. public static void main(String[] args) throws Exception { String message = "smile"; encrypt("Jack the Bear"); } public static void encrypt(String password) throws Exception...

How to generate md5_hex() in php?

php,md5
I need to connect to an API. I Need to send parameters in encryption form of md5_hex(). it seems, its used in pearl. php couldn't recognize it. is there any way to convert md5 to md5_hex()? or generate md5_hex() in php? ADDITION : URL to hit https://fm.transfer-to.com/cgi-bin/shop/topup?login=login&key=1&md5=2f922ef79253f93d0fc05d0ac0b0d100&action=ping login = login...

Wordpress Password Encryption

wordpress,hash,admin,md5
I am not familiar with Wordpress so sorry if this is a stupid question. For some reason, when a user logs in to admin (or is registered), her/his password is sent to the database in plain text. I have read that one should not use MD5 with WP, but use...

How to include Content-MD5 header in FineUploader Azure request?

azure,md5,fine-uploader
I would like to use the Content-MD5 header to supply Azure with a client-side generated MD5 hash of the files being uploaded. How would I accomplish this task in FineUploader? Target audience: Firefox, Chrome, Safari, Opera and IE10+. Judging by this answer I gather that it should be possible but...

Formating issue with md5deep

batch-file,hash,md5
So I am making a program in batch and it requires a text file to be hashed then the hash has to be saved to a text file. I already have that part done but when it saves to the text file it saves like this f558e01b798b0390ab6206679a6926a7 C:\Users\computer\Desktop\tmpfile.txt So my...

How to create a Tamper Evident Seals or Signature for HTML a Document

html,encryption,hash,md5,hmac
I want to replace some PDF files with more accessible self contained HTML documents. Images can be encoded using Data URI http://en.wikipedia.org/wiki/Data_URI_scheme I need to ensure the documents have not been tempered with For legal reasons and if possible verify authenticity. These documents are "public" so they don't need to...

Expected performance of MD5 calculation in javascript?

javascript,md5,md5sum
I am trying out calculation of MD5 using javascript and looking at fastest MD5 Implementation in JavaScript post 'JKM' implementation is suppose to be one of the faster implementations. I am using SparkMD5 which is based of off JKM implementation. However the example provided https://github.com/satazor/SparkMD5/blob/master/test/readme_example.html takes about 10seconds for a...

rfc2104 MD5 issue

c#,hash,cryptography,md5
Can someone give me an example in c# how to HASH string with MD5, regarding this document : http://www.ietf.org/rfc/rfc2104.txt I was used MD5CryptoServiceProvider but without success. I`m trying to communicate with external software and we must have same HASH. Asked their developers and they told me that use this alogirtm...

Is there an alternative to MD5 hashing when the input is public?

hash,md5
I have a database of similar integers by the fact that they all share the same first 3 numbers: 7537463746 7536735325 7538236775 7538273826 ... Each one is associated to a user, and they are all almost exposed to the public, meaning they are sent as a sort of peer discovery,...

Authenticating with Last.fm in Jquery - Invalid method signature supplied

javascript,jquery,api,md5,last.fm
I'm trying to auth a Last.fm session and am struggling to sign a request for a session key correctly. I keep receiving Invalid method signature supplied However when I md5 hash what i believe the query should consist of outside of JS, I get the same signature. I must be...

NSData dataWithContentsOfFile returns different results on device

ios,iphone,hash,md5,nsdata
I'm using dataWithContentsOfFile on a PNG image and the iOS Simulator returns a value that differs from an iOS Device. My device is a 64-bit iPad Air (iOS 8.3) and my simulator is set to iPad Retina iOS 8.3. Here's the code that I'm using: NSString *sourcePath = [[NSBundle mainBundle]...

converting character or integer to md5 hash using python script

python,sql,md5
I used SQL to convert a social security number to MD5 hash. I am wondering if there is a module or function in python/pandas that can do the same thing. My sql script is: CREATE OR REPLACE FUNCTION MD5HASH(STR IN VARCHAR2) RETURN VARCHAR2 IS V_CHECKSUM VARCHAR2(32); BEGIN V_CHECKSUM := LOWER(RAWTOHEX(UTL_RAW.CAST_TO_RAW(SYS.DBMS_OBFUSCATION_TOOLKIT.MD5(INPUT_ST...

MD5 generate different result between C# and Java [closed]

java,c#,md5
I have a byte array, and I want to compute the MD5 hash in java and C# separately. However, their generate very different result. below is my C# code: byte[] input = { 90, 12, 200, 139, 85, 104, 9, 202, 0, 0, 0, 0, 28, 251, 54, 201, 233,...

Create a 5 chars unique identifier from a 40 characters string

c#,oauth-2.0,compression,md5
I have a list of 10 to max 300 string codes (40 word characters capitalized) that need to be stored inside an oauth2 Access Token (Claims based authorization); I have to keep the token small as much as I can (header size problem) so I'm searching a way to create...

compile md5 checksum in C but got compile error

c,struct,compiler-errors,md5
Tried to follow the example in SO example, but when compiling the following, got error: $ gcc te.c te.c: In function ‘main’: te.c:10:17: error: storage size of ‘context’ isn’t known Here is the code: #include <string.h> #include <stdio.h> #include <openssl/md5.h> //#include <md5.h> int main(int argc, char *argv[]) { unsigned char...

is it normal to have different md5 for apache maven

osx,apache,security,maven,md5
I am downloading apache marven form this official website https://maven.apache.org/download.cgi I downloaded apache-maven-3.3.3-bin.tar.gz and calculated the md5 and the result is 9f0fa573a526785b8e0adb0631687ad5 while the result on the official page is: 794b3b7961200c542a7292682d21ba36 ** is that normal? ** then i downloaded apache-maven-3.3.3-bin.zip and for some reason, my mac 10.10.1 gives me a...

C# & Lua MD5 Hashing

c#,asp.net-mvc,lua,md5
I am having some issues trying to match an MD5 encryption with salt from Lua to C#. Meaning, I have it hashing and salting the account password in Lua, but I need to match that exact same encryption in C# as I am developing a website in C# that needs...

Java MD5 encoder not match with C# MD5CryptoServiceProvider

java,c#,md5,encode
I am trying to generate C# MD5CryptoServiceProvider to encode string and Java MessageDigest.getInstance("MD5") to encode string, but both outputs are different. There are so many sample are already available on stackoverlflow but still stuck on some where. Following is my C# code: MD5CryptoServiceProvider md5Hasher = new MD5CryptoServiceProvider(); Byte[] hashedDataBytes =...

Is this a bad practice for storing passwords in PHP?

php,hash,passwords,md5,salt
I'm using the crypt function in PHP to hash passwords, along with salt obviously. But I'm generating my salt by calling the md5 function over the date function. And every time the user logs in the salt gets regenerated. Is any of this bad in any way? I am still...

MD5 returning different hash codes - Python

python,hash,md5
I'm trying to determine the data consistency of some files. However, the MD5 keeps coming differently. When I execute md5sum then the hashes are equal: import hashlib import os import sys def hash_file_content(path): try: if not os.path.exists(path): raise IOError, "File does not exist" encode = hashlib.md5(path).hexdigest() return encode except Exception,...

Using MD5 in F#

hash,f#,md5
I am currently trying to pick up F#. This is my first time using a .NET language, and consequently I am very unfamiliar with the available APIs. As a beginner's project, I would like to implement my own duplicate file finder. I have been advised to use checksums, since the...

C# bruteforce md5 hashed string

c#,loops,hash,cryptography,md5
I'm trying to create a C# application that recovers a MD5 hashed password by using bruteforce (just for testing, limited to lowercase a-z) I'm having trouble with the loops. It needs to add a new character after trying a-z and start a new loop that tries all the possible combinations....

md5 hash a large file incrementally?

javascript,hash,md5,cryptography
In the browser, I read in a file using the JS FileReader().readAsBinaryString(). Using the CryptoJS library I can MD5 hash the data. This works fine but I do not know how to handle large files. E.g. Just reading a 2GiB file crashes the browser window. I can slice blobs from...

Android MD5 checksum of sqlite Db changes after copying

android,sqlite,compare,md5,checksum
I am providing an SQLite Db packaged with the app which is copied to the /data/data/ folder on the first launch. The contents of this Db are meant for reading only and are never changed. If the Db is modified, it is supposed to be provided with the next App...

How to generate an md5 hash with a plaintext string and a known salt [duplicate]

c#,passwords,md5,salt
This question already has an answer here: MD5 hash with salt for keeping password in DB in C# 4 answers I have been going crazy trying to figure this out. Is there a simple way in C# to take a string like "password123" and a salt "vfs5%S]m(_*Y+Tk" and generate...

What stops someone from forging a password reset link?

php,security,passwords,md5
I'm creating a profile system for a website, and I'm at the point where I'm coding the password reset function in PHP. Basically, I'm asking the user for their email address, then setting a random md5 password and emailing this to them and it comes in a link formatted like...

How to find the path of the downloaded file from asp.net C# web application for checking the integrity of the downloaded file?

c#,asp.net,md5
I developing a web application using ASP.NET. The users can download an excel template from the site. Now, i want to check the integrity of the file to check whether the file is the same as that on server and it is not corrupted. I can get md5 hashcodes for...

Hexdigest in Python

python-2.7,md5
How the Hexdigest md5 values of two same CSV files are different when I check it. The difference between the two CSV files is that one is tab seperated and the other one is comma seperated, else the values are same. f1 = open(r'D:\Temporary\New File.csv',mode='r') f2 = open(r'D:\Temporary\Old File.csv',mode='r') print...

Password encryption in codeginiter function

php,codeigniter,encryption,login,md5
How can i encrypt my password on codeigniter. Here is my code $password = $this->security->xss_clean($this->input->post('password')); How to make it md5?...

Creating a hash MD5 of a XML File [closed]

c#,xml,validation,hash,md5
I am having troubles when trying to calculate the hash MSD5 of an XML file. I have a third party validator that calculates it correctly, i am trying to make my own validator in c# but it does not work, i keep getting an invalid hash MD5 with big xml...

Generating an MD5 Hash with a char[]

java,security,hash,md5,message-digest
How would one go about converting a char[] password obtained using this method: char[] password = passwordInputField.getPassword(); To an MD5 Hash? Normally I would use the method below, but getBytes is only compatible with Strings: MessageDigest md = MessageDigest.getInstance("MD5"); md.update(password.getBytes()); String hashedPass = new BigInteger(1, md.digest()).toString(16); ...

Grails: In migrating/updating databases, what is the MD5SUM for?

mysql,database,grails,md5
Probably a rookie question, so have patience. When I use grails dbm-update-sql I get a generated sql file to update the database to match my domain classes. In the generated SQL file There are INSERTS into the DATABASECHANGELOG. INSERT INTO `DATABASECHANGELOG` (`AUTHOR`, `COMMENTS`, `DATEEXECUTED`, `DESCRIPTION`, `EXECTYPE`, `FILENAME`, `ID`, `LIQUIBASE`, `MD5SUM`,...

Compute MD5 digest of file in Haskell

haskell,md5
Using Haskell, how can I compute the MD5 digest of a file without using external tools like md5sum? Note: This question intentionally shows no effort as I answered it right away....

Any difference in collision chance between md5(stringa + stringb …) and md5(stringa) + md5(stringb)?

hash,md5
I have a small data set with many fields, I want to checksum each row for quick comparison. There is no chance of malicious behaviour and it is not a big deal if there is a collision, but to reduce the probability I am wondering if I should md5 every...

Login and registration with php and md5

php,mysql,md5
I'm trying to hash the users password using md5 but I can't log in. It store the password hashed but when I do the login it doesn't work.Why? These are the functions (before I started using md5 it worked) function checkLogin($username, $password) { $password=md5($password); $checkLogin = "select * from users...

PHP Compare a crypted password from db with an inserted password from a form

php,hash,cryptography,passwords,md5
I've a db with crypted password. When a user logs in, i make this: $result = mysqli_fetch_assoc(mysqli_query($conn,$query)); $cryptedPass = $result['password']; $pass = $_POST['password']; if(strcmp($cryptedPass,md5($pass))==0) echo "yeah!"; It works, but I would like to know if this the right manner, or if there is something of safer!...

MD5 hash of a file using javascript

javascript,file-upload,md5
I have to upload a file from the front end and calculate the md5 hash of the file. I tried to use crypto.js to generate the md5 but for images it is giving me wrong md5. I saw a website called onlinemd5.com and it is exactly what I need. Can...

C#, Regex, string of a specific length and pattern [duplicate]

c#,regex,string,md5
This question already has an answer here: Is there a way to test if a string is an MD5 hash? 6 answers I've got a problem with checking whether the string is md5 or not. I know that it should contain "0123456789ABCDEF" and its length equals to 32. I...

Use template to construct md5 hash algorithm

python,algorithm,hash,md5
So this might be a weird one: hashlib.md5((hashlib.md5(salt).hexdigest())+(hashlib.md5(plaintext).hexdigest())).hexdigest() That's MyBB's hashing algorithm. In my python program, that's easy to implement. However, when the hashing algorithm isn't known, and the user is required to enter one, I have no idea how to implement that. So basically I want to hash something...

Hashing a time-string: Why not receive same results?

python,time,md5
Why does the following code not generate at least a few identical MD5 strings: import hashlib import time hasher = hashlib.md5() def calcHash(): localtime = time.localtime() timeString = time.strftime("%Y-%m-%d-%H-%M-%S", localtime) print(timeString) hasher.update(timeString.encode('utf-8')) print("Calculated: " + hasher.hexdigest()) for i in range(1,10): calcHash() I am feeding not the time stamp, but the...

Using of md5 function [duplicate]

php,hash,md5,password-hash
This question already has an answer here: Secure hash and salt for PHP passwords 13 answers On php. How we use md5 encryption method? Suppose a login form. When we want an encrypted text we use $encryptedtxt=md5('text'); Then we sent this $encryptedtxt to database. Now if we want this...

nodejs crypto module, does hash.update() store all input in memory

node.js,hash,stream,cryptography,md5
I have an API route that proxies a file upload from the browser/client to AWS S3. This API route attempts to stream the file as it is uploaded to avoid buffering the entire contents of the file in memory on the server. However, the route also attempts to calculate an...

Convert md5 in base64 in md5 of 32 characters with PHP

php,hash,md5
I have an example: Md5 base64: wPE2JkrsTJxF+KbSDApwYQ== Md5 using md5_file: c0f136264aec4c9c45f8a6d20c0a7061 how convert the firts md5 in the second md5?...