Как создать хэш пароля для RabbitMQ Management HTTP API

для ленивых людей (таких как я;)) существует код для вычисления пароля RabbitMq с Sha512 для .NET Core.

public static class RabbitMqPasswordHelper
{
    public static string EncodePassword(string password)
    {
        using (RandomNumberGenerator rand = RandomNumberGenerator.Create())
        using (var sha512 = SHA512.Create())
        {
            byte[] salt = new byte[4];

            rand.GetBytes(salt);

            byte[] saltedPassword = MergeByteArray(salt, Encoding.UTF8.GetBytes(password));
            byte[] saltedPasswordHash = sha512.ComputeHash(saltedPassword);

            return Convert.ToBase64String(MergeByteArray(salt, saltedPasswordHash));
        }
    }

    private static byte[] MergeByteArray(byte[] array1, byte[] array2)
    {
        byte[] merge = new byte[array1.Length + array2.Length];
        array1.CopyTo(merge, 0);
        array2.CopyTo(merge, array1.Length);

        return merge;
    }
}

на всякий случай, полный код от Waldo должен быть следующим

//Rextester.Program.Main is the entry point for your code. Don't change it.
//Compiler version 4.0.30319.17929 for Microsoft (R) .NET Framework 4.5

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text.RegularExpressions;
using System.Security.Cryptography;
using System.Text;

namespace Rextester
{
    public static class RabbitMqPasswordHelper
{
    public static string EncodePassword(string password)
    {
        using (RandomNumberGenerator rand = RandomNumberGenerator.Create())
        using (var sha256 = SHA256.Create())
        {
            byte[] salt = new byte[4];

            rand.GetBytes(salt);

            byte[] saltedPassword = MergeByteArray(salt, Encoding.UTF8.GetBytes(password));
            byte[] saltedPasswordHash = sha256.ComputeHash(saltedPassword);

            return Convert.ToBase64String(MergeByteArray(salt, saltedPasswordHash));
        }
    }

    private static byte[] MergeByteArray(byte[] array1, byte[] array2)
    {
        byte[] merge = new byte[array1.Length + array2.Length];
        array1.CopyTo(merge, 0);
        array2.CopyTo(merge, array1.Length);

        return merge;
    }
}

    public class Program
    {
        public static void Main(string[] args)
        {
            //Your code goes here
            Console.WriteLine(Rextester.RabbitMqPasswordHelper.EncodePassword("MyPassword"));
        }
    }
}

вы можете запустить его в интернете наhttp://rextester.com/. Вывод программы будет содержать ваш хэш.

версия Python от christianclinton (https://gist.github.com/christianclinton/faa1aef119a0919aeb2e)

#!/bin/env/python
import hashlib
import binascii

# Utility methods for generating and comparing RabbitMQ user password hashes.
#
# Rabbit Password Hash Algorithm:
# 
# Generate a random 32 bit salt: 
# CA D5 08 9B 

# Concatenate that with the UTF-8 representation of the password (in this 
# case "simon"): 
# CA D5 08 9B 73 69 6D 6F 6E 

# Take the MD5 hash: 
# CB 37 02 72 AC 5D 08 E9 B6 99 4A 17 2B 5F 57 12 

# Concatenate the salt again: 
# CA D5 08 9B CB 37 02 72 AC 5D 08 E9 B6 99 4A 17 2B 5F 57 12 

# And convert to base64 encoding: 
# ytUIm8s3AnKsXQjptplKFytfVxI= 
# 
# Sources:
# http://rabbitmq.1065348.n5.nabble.com/Password-Hashing-td276.html
# http://hg.rabbitmq.com/rabbitmq-server/file/df7aa5d114ae/src/rabbit_auth_backend_internal.erl#l204 

# Test Case:
#   print encode_rabbit_password_hash('CAD5089B', "simon")
#   print decode_rabbit_password_hash('ytUIm8s3AnKsXQjptplKFytfVxI=')
#   print check_rabbit_password('simon','ytUIm8s3AnKsXQjptplKFytfVxI=')

def encode_rabbit_password_hash(salt, password):
    salt_and_password = salt + password.encode('utf-8').encode('hex')
    salt_and_password = bytearray.fromhex(salt_and_password)
    salted_md5 = hashlib.md5(salt_and_password).hexdigest()
    password_hash = bytearray.fromhex(salt + salted_md5)
    password_hash = binascii.b2a_base64(password_hash).strip()
    return password_hash

def decode_rabbit_password_hash(password_hash):
    password_hash = binascii.a2b_base64(password_hash)
    decoded_hash = password_hash.encode('hex')
    return (decoded_hash[0:8], decoded_hash[8:])

def check_rabbit_password(test_password, password_hash):
    salt, hash_md5sum = decode_rabbit_password_hash(password_hash)
    test_password_hash = encode_rabbit_password_hash(salt, test_password)
    return test_password_hash == password_hash

удачи!

для тех, кто ищет решение Go. Приведенный ниже код генерирует 32-байтовый случайный пароль или принимает флаг с заданным паролем и хэширует его, чтобы вы могли использовать его в поле "password_hash" файла определений в rabbit

package main

import (
    "crypto/rand"
    "crypto/sha256"
    "encoding/base64"
    "flag"
    "fmt"
    mRand "math/rand"
    "time"
)

var src = mRand.NewSource(time.Now().UnixNano())

func main() {

    input := flag.String("password", "", "The password to be encoded. One will be generated if not supplied")

    flag.Parse()

    salt := [4]byte{}
    _, err := rand.Read(salt[:])
    if err != nil {
        panic(err)
    }

    pass := *input

    if len(pass) == 0 {
        pass = randomString(32)
    }

    saltedP := append(salt[:], []byte(pass)...)

    hash := sha256.New()

    _, err = hash.Write(saltedP)

    if err != nil {
        panic(err)
    }

    hashPass := hash.Sum(nil)

    saltedP = append(salt[:], hashPass...)

    b64 := base64.StdEncoding.EncodeToString(saltedP)

    fmt.Printf("Password: %s\n", string(pass))
    fmt.Printf("Hash: %s\n", b64)
}

const (
    letterBytes   = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"
    letterIdxBits = 6                    // 6 bits to represent a letter index
    letterIdxMask = 1<<letterIdxBits - 1 // All 1-bits, as many as letterIdxBits
    letterIdxMax  = 63 / letterIdxBits   // # of letter indices fitting in 63 bits
)

func randomString(size int) string {
    b := make([]byte, size)
    // A src.Int63() generates 63 random bits, enough for letterIdxMax letters!
    for i, cache, remain := size-1, src.Int63(), letterIdxMax; i >= 0; {
        if remain == 0 {
            cache, remain = src.Int63(), letterIdxMax
        }
        if idx := int(cache & letterIdxMask); idx < len(letterBytes) {
            b[i] = letterBytes[idx]
            i--
        }
        cache >>= letterIdxBits
        remain--
    }

    return string(b)

}