md5 | 易学教程

What is FreeBSD MD5 and why does it produce hashes in non-hexadecimal notation?

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问题 I am doing a hacking challenge from Hack This Site in which I found a password hash and then cracked it by brute forcing possibilities. The format that my hash cracker (John the Ripper) used was something called "FreeBSD MD5". The password and hash are the following: PW: shadow HASH: $1$AAODv...$gXPqGkIO3Cu6dnclE/sok1 My question is, doesn't MD5 normally only have the charset 0123456789abcdef (hexadecimal)? Why is this hash suddenly including a bunch of other characters? Screenshot: 回答1: This

ord, md5 shows different behaviour on @

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问题 I used ord to check @ and @‪ are same char. But ord output the same value while md5 does not. php -a Interactive shell php > echo ord('@'); 64 php > echo ord('@‪'); 64 php > echo md5('@'); 518ed29525738cebdac49c49e60ea9d3 php > echo md5('@‪'); e6124653b6620abe51d7c401a7644674 php > Here is the screenshot, 回答1: Your second one is @ followed by U+202A - LEFT-TO-RIGHT EMBEDDING . As they are different strings, naturally they have different MD5 encodings. php > echo md5("@\u{202a}");

Getting md5sum of a file through Crypto.js

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问题 I am trying to get the md5sum of a tar file to produce the same value when using the md5sum linux command and CryptoJS's MD5 method. In JavaScript I do (after a file has been put in an HTML form): var reader = new FileReader(); reader.onloadend = function () { text = (reader.result); } reader.readAsBinaryString(document.getElementById("firmware_firmware").files[0]); var hash = CryptoJS.MD5(text); hash.toString(); In Linux I do: md5sum name_of_file.tar Currently these two produce different

Getting md5sum of a file through Crypto.js

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Getting md5sum of a file through Crypto.js

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java md5 32位加密方法

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import java.security.MessageDigest; public class MD52 { public static void main(String[] args) { String a = MD5_32BIT.md5("123456"); System.out.println(a); } public final static String md5(String plainText) { String md5Str = null; try { StringBuffer buf = new StringBuffer(); MessageDigest md = MessageDigest.getInstance("MD5"); md.update(plainText.getBytes()); byte b[] = md.digest(); int i; for (int offset = 0; offset < b.length; offset++) { i = b[offset]; if (i < 0) { i += 256; } if (i < 16) { buf.append("0"); } buf.append(Integer.toHexString(i)); } md5Str = buf.toString(); } catch (Exception

Decrypting MD5 hashed text when salt is known

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问题 Let's say I have the following MD5 hashed password: bec0932119f0b0dd192c3bb5e5984eec If I know that the original password was salted and hashed and know that instead of typical salt it was just wrapped in 'flag{}' before MD5 summing it. How may I decrypt MD5 in this case? 回答1: The other answer is not correct in the definition of what you are trying. Let's begin with the formal definitions of Cryptographical hash functions' required resistances. The below from Cryptographic Hash-Function

Haskell: Install pureMD5 package

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问题 I am trying to tell whether two files are likely the same, and found I could make a MD5 hash in Haskell from this StackOverflow thread: Compute MD5 digest of file in Haskell When I try to install pureMD5, I get an error: $ cabal install --lib pureMD5 Resolving dependencies... cabal: Could not resolve dependencies: [__0] trying: base-4.12.0.0/installed-4.1... (user goal) [__1] trying: ghc-8.6.5/installed-8.6... (user goal) [__2] next goal: process (user goal) [__2] rejecting: process-1.6.6.0

awk and md5: replace a column

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问题 Starting from Awk replace a column with its hash value, I tried to hash(md5) a list of numbers: $ cat -n file 1 40755462755 2 40751685373 3 40730094339 4 40722740446 5 40722740446 6 40743802204 7 40730094339 8 40745188886 9 40740593352 10 40745561530 If I run: cat file | awk '{cmd="echo -n " $1 " | md5sum|cut -d\" \" -f1"; cmd|getline md5; $1=md5;print;}' | cat -n 1 29ece26ce4633b6e9480255db194cc40 2 120148eca0891d0fc645413d0f26b66b 3 cafc48d392a004f75b669f9d1d7bf894 4

Powershell Speed: How to speed up ForEach-Object MD5/hash check

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问题 I'm running the following MD5 check on 500 million files to check for duplicates. The scripts taking forever to run and I was wondering how to speed it up. How could I speed it up? Could I use a try catch loop instead of contains to throw an error when the hash already exists instead? What would you all recommend? $folder = Read-Host -Prompt 'Enter a folder path' $hash = @{} $lineCheck = 0 Get-ChildItem $folder -Recurse | where {! $_.PSIsContainer} | ForEach-Object { $lineCheck++ Write-Host