RSA

​RSA intro video​
​RSA video​
​RSA sign​
In order to understand hex and type parameters read Hash​
RSA
​spec​
Description: Public-key cryptosystem
Problem: Integer Factoriation
Uses: Encrypt, digital signatures
It only supports "type":"string"
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 rsa(data_js, bits):
    req=json.loads(data_js)
    req["length"]=bits
    print "Send gen parameters : \n " + json.dumps(req) +"\n"
    data_js_n=sending(json.dumps(req))
    answ=json.loads(data_js_n)
    print "Recived  rsa gen: \n"+(json.dumps(answ)) +"\n\n\n"
    json_s=json_v='{ "version": 1 , "algorithm":"RSA", "type":"string","plaintext": "Hello world!", "hex":0,"privkey": "" ,"operation":"sign"}'
    req=json.loads(json_s)
    req["privkey"]=answ["privkey"]
    print "Send sign : \n " + json.dumps(req) +"\n"
    data_js_n=sending(json.dumps(req))
    answ_1=json.loads(data_js_n)
    print "Recived  sign done: \n"+(json.dumps(answ_1)) +"\n\n\n"
    json_v='{ "version": 1 , "algorithm":"RSA", "type":"string","plaintext": "Hello world!", "hex":0,"pubkey": "" ,"sign":"","operation":"verify"}'
    req=json.loads(json_v)
    req["pubkey"]=answ["pubkey"]
    req["sign"]=answ_1["sign"]
    print "Send verify : \n " + json.dumps(req) +"\n"
    data_js_n=sending(json.dumps(req))
    answ_2=json.loads(data_js_n)
    print "Recived  verify done: \n"+(json.dumps(answ_2)) +"\n\n\n"
    json_enc='{ "version": 1 , "algorithm":"RSA", "type":"string","pubkey": "" ,"operation":"enc", "plaintext":"Hello world!","hex":0 }'
    req=json.loads(json_enc)
    req["pubkey"]=answ["pubkey"]
    print "Send enc : \n " + json.dumps(req) +"\n"
    data_js_n=sending(json.dumps(req))
    answ_3=json.loads(data_js_n)
    print "Recived  enc done: \n"+(json.dumps(answ_3)) +"\n\n\n"
    json_dec='{ "version": 1 , "algorithm":"RSA", "type":"string","privkey": "" ,"operation":"dec", "plaintext":"" }'
    req=json.loads(json_dec)
    req["privkey"]=answ["privkey"]
    req["plaintext"]=answ_3["result"]
    print "Send dec : \n " + json.dumps(req) +"\n"
    data_js_n=sending(json.dumps(req))
    answ_3=json.loads(data_js_n)
    print "Recived  dec done: \n"+(json.dumps(answ_3)) +"\n\n\n"
​
​
​
rsa_gen='{ "version": 1 , "algorithm":"RSA", "operation":"gen" , "length": 0 }'
rsa(rsa_gen,1024)
In this example we generate a RSA key (1024 bits), sign and validate "Hello world!" string, we enc and dec "Hello world!" string.
The default hash function to sign is sha3256, you can change by adding "hashsign" and can be one of {"sha3_512","sha3_384","sha3_256","sha3_224","sha_512","sha_384","sha_256","sha_224","sha_1","whirlpool"}
Json to gen
{ "version": 1 , "algorithm":"RSA", "operation":"gen" , "length": INT }
Json to sign
{ "version": 1 , "algorithm":"RSA", "type":"string","plaintext": "your string", "hex":BOOL,"privkey": "your hex privkey" ,"operation":"sign"}
Json to verify
{ "version": 1 , "algorithm":"RSA", "type":"string","plaintext": "your string", "hex":BOOL,"pubkey": "your hex pubkey" ,"sign":"your hex signature","operation":"verify"}
Json to enc
{ "version": 1 , "algorithm":"RSA", "type":"string","pubkey": "your hex pubkey" ,"operation":"enc", "plaintext":"your string","hex":BOOL }
Json to dec
{ "version": 1 , "algorithm":"RSA", "type":"string","privkey": "your hex privkey" ,"operation":"dec", "plaintext":"your enc hex string" }
DSA
Last modified 2yr ago