ऑनलाइन MD5 हैश जेनरेटर

I was implementing an HTTPS client/server example just for learning purpose using the book "Implementing SSL / TLS Using Cryptography and PKI" by Joshua Davies. It contains an example implementation with C source code. I just tried to build a HTTPS client using that source code. But, in tls.c file it uses two macros MD5_BYTE_SIZE and SHA1_BYTE_SIZE and I can't see any values defined for these macros in that book. I tried with permutations of 16,24,32 for both macros but failed in SSL handshaking, and greater values causes segmentation fault. I hope if anybody familiar with this book can help me

Xamarin, Portable multiplatform solution, portable project section

For MD5 hashing I create class md5. add to project referece PCLCrypto.dll.

using System;using System.Collections.Generic;using System.Linq;using System.Text;using PCLCrypto;using static PCLCrypto.WinRTCrypto;namespace WCHSBMobile{    public static class md5    {        public static string GetMD5hash(string data)        {            //string result = data;            IHashAlgorithmProvider algoProv = PCLCrypto.WinRTCrypto.HashAlgorithmProvider.OpenAlgorithm(HashAlgorithm.Md5);            byte[] dataB = Encoding.UTF8.GetBytes(data);            byte[] dataHash = algoProv.HashData(dataB);            var hex = new StringBuilder(dataHash.Length * 2);            foreach (byte b in dataHash)            {                hex.AppendFormat("{0:x2}", b);            }            return hex.ToString();            //return result;        }    }}

When testing on android on this line I get Runtime error IHashAlgorithmProvider algoProv = PCLCrypto.WinRTCrypto.HashAlgorithmProvider.OpenAlgorithm(HashAlgorithm.Md5); I get the errorPCLCrypto.NotImplementedByReferenceAssemblyException: This is a reference assembly and does not contain implementation. Be sure to install the PCLCrypto package into your application so the platform implementation assembly will be used at runtime.What should I do? Can you advice me any solution?Thank you

I am creating a simple DB access application using C++, and I have added Users Table containing: ID, USER, PASSWORD and SALT, and I am using Crypto++ as crypto backend. So I created this function:

#include "crypto.h"#define CRYPTOPP_ENABLE_NAMESPACE_WEAK 1#include <md5.h>#include <hex.h>#include <osrng.h>using namespace std;using namespace CryptoPP;string MyCrypto::MD5(const string strMessage){    byte arrbyDigest[Weak::MD5::DIGESTSIZE];    Weak::MD5 hash;    hash.CalculateDigest(arrbyDigest, /*(const byte*)*/strMessage.c_str(), strMessage.length());    HexEncoder encoder;    string strOutput;    encoder.Attach(new StringSink(strOutput));    encoder.Put(arrbyDigest, sizeof(arrbyDigest));    encoder.MessageEnd();    return strOutput;}string MyCrypto::GenerateSalt(const size_t length /*= 16*/){    SecByteBlock arrbySalt(length);    AutoSeededRandomPool asrp;    asrp.GenerateBlock(arrbySalt, length);    string strSalt(arrbySalt);    strSalt.ToAscii();    return strSalt;}

So good so far, all is working fine until I realized that the generated salt string can contain non-printable characters even null termination character

So my questions are:

Am I doing it the right way ?

Is the length of the salt 16 as I did the practical way ?

Should I encrypt the salt string in Base 64, HEX or leave it as plain text when concatenating it with the plain password string before the MD5 hash ?

Should I encrypt the salt string in Base 64, HEX or leave it as plain text when saving it to the database ?

What are your suggestions ?

I have been given a file with user and passwords in the format: $id$salt$hashed.

Where ID stands for the type of encryption and id=1 stands for FreeBSD-style MD5.

There is an example in which I know the password= "alice"

jsmith: $1$kDHTx$WKRXXT1P7UtjvU7CQ9eWs/:10063:0:99999:7:::

So I have done this in Python to check

import hashlibpassw='alice'salt='kDHTx'hashed= hashlib.md5(salt+passw).hexdigest()print('What i get is: '+hashed)print('What i should: '+'WKRXXT1P7UtjvU7CQ9eWs')

But I dont even get the format correctly:

What i get is: ba359e6dd36371c4dc5c187aac11e0d8What i should: WKRXXT1P7UtjvU7CQ9eWs

What am I doing wrong? Or even understanding wrong from the begining?

When I run the following on my Macbook, I get the error:

>>> import hashlib>>> hashlib.md5(usedforsecurity=False)Traceback (most recent call last):  File "<stdin>", line 1, in <module>TypeError: openssl_md5() takes no keyword arguments

But when I run it on my Linux box, it works!

>>> import hashlib>>> hashlib.md5(usedforsecurity=False)<md5 HASH object @ 0x7f763c1375d0>

My problem is, I need to run some safe, non-security related code on my FIPS enabled system (such as managing a cache of user requests which hashes the user query as an MD5 string). Using the usedforsecurity flag prevents a FIPs exception.

This works fine, except when I want to test my code on my Macbook. My Macbook's "libcrypto" library apparently doesn't support this usedforsecurity flag. Is there a good way to detect if the underlying C bindings behind hashlib.md5 support this flag or not?