md5

问题 I'm trying to implement an indirect download through PHP. On the client side I verify if the downloaded file is correct or not using md5. When I download the file directly (http://server/folder/file.apk) I get the same md5 checksum as on the file system, but when I download it via the PHP script (http://server/some_page.php) I get a totally different checksum. Why? Here's my PHP script: <?php $name_file="test2.apk"; $path="/home/user/public_html/apk/"; $dimension_file=(string)filesize($name

问题 I'm converting an existing php based website to a node.js app, and I need to reproduce this encryption method from php to js. private static $_passwordSalt = 'd2g6IOP(U(&§)%U§VUIPU(HN%V/§§URerjh0ürfqw4zoöqe54gß0äQ"LOU$3wer'; public static function getCryptedPassword($password = 'password') { return sha1(md5(self::$_passwordSalt.$password)); } So far I've tried this but it does not return the same results: UserSchema.methods.hashPassword = function(password) { var salt = 'd2g6IOP(U(&§

问题 In this link, it says that truncated MD5 is uniformly distributed. I wanted to check it using PySpark and I created 1,000,000 UUIDs in Python first as shown below. Then truncated the first three characters from MD5. But the plot I get is not similar to the cumulative distribution function of a uniform distribution. I tried with UUID1 and UUID4 and the results are similar. What is the right way of conforming the uniform distribution of truncated MD5? import uuid import numpy as np import

问题 I had a correctly working md5 program compiled on my mac but when I try to compile on my ubuntu distro it errors out saying: /tmp/ccKBJiV3.o: In function `str2md5': md5.c:(.text+0x33): undefined reference to `MD5_Init' md5.c:(.text+0x5b): undefined reference to `MD5_Update' md5.c:(.text+0x79): undefined reference to `MD5_Update' md5.c:(.text+0xa2): undefined reference to `MD5_Final' collect2: ld returned 1 exit status Below is my code for main: #include <stdio.h> #include <stdlib.h> #include

问题 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. 回答1: One option is to use the pureMD5 package, for example if you want to compute the hash of the file foo.txt : import qualified Data.ByteString.Lazy as LB import Data.Digest.Pure.MD5 main :: IO () main = do fileContent <- LB.readFile "foo.txt" let md5Digest = md5 fileContent print md5Digest This code prints the

问题 First, i should say that I am relatively new to programming so please be gentle with me if this is a naive or dumb question. Ok, so I am in the process of writing a small application, part of which will involve hashing user passwords. After researching the best way to do this, md5 appears as a suggestion, almost as many times as it appears in articles criticizing its use. The alternatives are the likes of SHA-1 etc which are stronger and less likely to be cracked. This makes perfect sense. To

问题 Is making system call to "md5sum file1" and "md5sum file2" and compare two return values enough in this case? 回答1: Well, that will tell you whether they're definitely different or probably the same. It's possible for two files to have the same hash but not actually have the same data... just very unlikely. In your situation, what is the impact if you get a false positive (i.e. if you think they're the same, but they're not)? MD5 is probably good enough not to worry about collisions if they

问题 Suppose you wanted to make a file hosting site for people to upload their files and send a link to their friends to retrieve it later and you want to insure files are duplicated where we store them, is PHP's sha1_file good enough for the task? Is there any reason to not use md5_file instead? For the frontend, it'll be obscured using the original file name store in a database but some additional concerns would be if this would reveal anything about the original poster. Does a file inherit any

问题 I need display in web page fingerprints of SSL Certificate. Is it possible in PHP? The function openssl_x509_parse doesn't return SHA1 and MD5 fingerprints. How resolve this problem? Thanks. 回答1: I'd guess the easiest way is going to be to call openssl through system $fingerprint = str_replace("SHA1 Fingerprint=", '', system('openssl x509 -noout -in /path/to/your/cert.pem -fingerprint')); And yes, I know, this is nothing like a clean way of doing this - however, it's the only one I can think

问题 I am working on an Android word game with a large dictionary - The words (over 700 000) are kept as separate lines in a text file (and then put in an SQLite database). To keep competitors from extracting my dictionary, I'd like to encode all words which are longer than 3 chars with md5. (I don't obfuscate short words and words with rare Russian letters ъ and э , because I'd like to list them in my app). So here is my script which I try to run with perl v5.18.2 on Mac Yosemite: #!/usr/bin/perl