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  • Argon2
  • How to ???

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Argon2

PreviousHashNextPoly1305

Last updated 4 years ago

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PHC

In order to understand hex and type parameters read

Argon2

Description: Password hashing winner of PHC.

Outputs: Variable

Uses: Highest resistance against GPU cracking attacks, safest against side-channel attacks.

How to ???

import requests
import json
import os,binascii

def sending(message):
    url = 'http://127.0.0.1:6613/'
    response=requests.post(url, data=message)
    print response.content
        return response.content


def argon(data_js):
    req=json.loads(data_js)
    print "Hash passwd \n " + json.dumps(req) +"\n"
    data_js_n=sending(json.dumps(req))
    answ=json.loads(data_js_n)
    print "Recived Argon2 hash: \n" + (json.dumps(answ)) +"\n\n\n"
    verify= '{ "version": 1 , "algorithm":"ARGON2" ,"family":"argon2i","plaintext": "Hello world!","hex":0,"pwd":"", "operation":"verify"}';
    req=json.loads(verify)
    req["pwd"]=answ["hash"]
    print "Verify passwd \n " + json.dumps(req) +"\n"
    data_js_n=sending(json.dumps(req))
    answ_1=json.loads(data_js_n)
    print "Recived Argon verification: \n" + (json.dumps(answ_1)) +"\n\n\n"


argon2_js='{ "version": 1 , "algorithm":"ARGON2" ,"family":"argon2i","plaintext": "Hello world!","t_cost":10,"m_cost":16,"parallelism":4,\
"salt":"ABABABABABABABABABABABABABABABAB","hashlen":32, "hex":0, "operation":"hash"}'

argon(argon2_js)

In this example We generate hash and validate password with argon2i from string Hello world! with t_cost, m_cost, parallelism and salt parameters given.

  • On argon2_js["family"] can be one of {argon2i, argon2d, argon2id}

  • On argon2_js["operation"] can be {hash, verify}

  • ARGON2 only supports "type":"string"

Json to hash

{ "version": 1 , "algorithm":"ARGON2" ,"family":"argon2 flavor",
"plaintext": "your password","t_cost":INT,"m_cost":INT,"parallelism":INT,
"salt":"hex string","hashlen":INT, "hex": BOOL, "operation":"hash"}

Json to verify

{ "version": 1 , "algorithm":"ARGON2" ,"family":"argon2 flavor",
"plaintext": "your password","hex":BOOL,"pwd":"Hex (hash arong2 string) ", 
"operation":"verify"}

In order to understand t_cost, m_cost, parallelism and salt parameters, please read .

In this tutorial We are protecting user's credentials with TLS and Argon2. It means the information is protected in motion, at rest, in use.

spec
HASH
spec
spec
End to end user credentials protection