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 sha3_256, you can change by adding "hash_sign" 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" }