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Crypt example python

This repository contains a script written in Python that describes the algorithm for the Metahash address generation using cryptography module, fetching balance and history for wallet, creating and sending transaction as well as getting information about performing transaction by hash. To find out more about all actions in the Metahash network please follow these links: Getting started with Metahash network, Creating transactions and Operations with MetaHash address.

Dependencies

  • Install Python 3.
  • Install pip (if it is not installed along with Python).
  • Install the following modules using pip:
pip install cryptography
pip install dnspython
pip install requests

Usage

usage: python crypt_example_bin.py [functions]

Crypt example python

optional arguments:
  -h, --help        show this help message and exit

List of functions:
  
    generate        generate MH address to mh_address.txt
    fetch-balance   get balance for MH address
    fetch-history   get history for MH address
    get-tx          get transaction information by hash
    create-tx       create transaction using input params
    send-tx         create and send transaction
usage: python crypt_example.py generate
usage: python crypt_example.py fetch-balance [args]

Get balance for MH address

arguments:
  --net NET          name of network (test, dev, main, etc.)
  --address ADDRESS  MH address
usage: python crypt_example.py fetch-history [args]

Get history for MH address

arguments:
  --net NET          name of network (test, dev, main, etc.)
  --address ADDRESS  MH address
usage: python crypt_example.py get-tx [args]

Get transaction information by hash

arguments:
  --net NET    name of network (test, dev, main, etc.)
  --hash HASH  transaction hash
usage: python crypt_example.py create-tx [args]

Create transaction from input params

arguments:
  --net NET          name of network (test, dev, main, etc.)
  --to TO            to MH wallet address
  --value VALUE      value to send
  --nonce NONCE      number of outgoing transactions + 1
  --pubkey PUBKEY    path to public key file
  --privkey PRIVKEY  path to private key file
  --data DATA        data to send (only test-net)
usage: python crypt_example.py send-tx [args]

Create transaction and sending

arguments:
  --net NET          name of network (test, dev, main, etc.)
  --to TO            to MH wallet address
  --value VALUE      value to send
  --pubkey PUBKEY    path to public key file
  --privkey PRIVKEY  path to private key file
  --data DATA        data to send (only test-net)

Outputs

mh_private.pem - private key file
mh_public.pub - public key file
mh_address.txt - metahash address file

Outputs examples

#python crypt_example_bin.py generate
Start generate MetaHash address...
Step 1. Generate private and public keys. Take part of the public key that equals to 65 bytes.
Step 2. Perform SHA-256 hash on the public key.
Done
Step 3. Perform RIPEMD-160 hash on the result of previous step.
Done
Step 4. SHA-256 hash is calculated on the result of previous step.
Done
Step 5. Another SHA-256 hash performed on value from Step 4.  Save first 4 bytes.
Done
Step 6. These 4 bytes from last step added to RIPEMD-160 hash with prefix 0x. 
Your Metahash address is 0x003d3b27f544d1dc03d6802e6379fdcfc25e0b73272b62496b

#python crypt_example_bin.py fetch-balance --net=dev --address=0x003d3b27f544d1dc03d6802e6379fdcfc25e0b73272b62496b
{
    "id": 1,
    "result": {
        "address": "0x003d3b27f544d1dc03d6802e6379fdcfc25e0b73272b62496b",
        "received": 10000,
        "spent": 2000,
        "count_received": 1,
        "count_spent": 2,
        "block_number": 1501,
        "currentBlock": 1512
    }
}

#python crypt_example_bin.py fetch-history --net=dev --address=0x003d3b27f544d1dc03d6802e6379fdcfc25e0b73272b62496b
{
    "id": 1,
    "result": [
        {
            "from": "0x00525d3f6326549b8974ef669f8fced6153109ba60d52d547d",
            "to": "0x003d3b27f544d1dc03d6802e6379fdcfc25e0b73272b62496b",
            "value": 10000,
            "transaction": "53a14ebb8bd111a80d013d015c14a856facff40a55852ad83e2934346df18d5d",
            "timestamp": 1529306546
        },
        {
            "from": "0x003d3b27f544d1dc03d6802e6379fdcfc25e0b73272b62496b",
            "to": "0x00525d3f6326549b8974ef669f8fced6153109ba60d52d547d",
            "value": 1000,
            "transaction": "babd020d4f33bbf208a62f39e32de3a37e4a81c1cd607cd4d4bcd4e7d4bcf701",
            "timestamp": 1529306666
        },
        {
            "from": "0x003d3b27f544d1dc03d6802e6379fdcfc25e0b73272b62496b",
            "to": "0x00525d3f6326549b8974ef669f8fced6153109ba60d52d547d",
            "value": 1000,
            "transaction": "ee0e11b793ff5a5b0d6954f0da4964ceb53f9887480e9a5e42608830ed401963",
            "timestamp": 1529308272
        }
    ]
}

#python crypt_example_bin.py get-tx --net=dev --hash=ee0e11b793ff5a5b0d6954f0da4964ceb53f9887480e9a5e42608830ed401963
{
    "id": 1,
    "result": {
        "transaction": {
            "from": "0x003d3b27f544d1dc03d6802e6379fdcfc25e0b73272b62496b",
            "to": "0x00525d3f6326549b8974ef669f8fced6153109ba60d52d547d",
            "value": 1000,
            "transaction": "ee0e11b793ff5a5b0d6954f0da4964ceb53f9887480e9a5e42608830ed401963",
            "timestamp": 1529308272
        }
    }
}

#python crypt_example_bin.py create-tx --to=0x00525d3f6326549b8974ef669f8fced6153109ba60d52d547d --value=1000 --nonce=3 --pubkey=mh_public.pub --privkey=mh_private.pem
{
    "jsonrpc": "2.0",
    "method": "mhc_send",
    "params": {
        "to": "0x00525d3f6326549b8974ef669f8fced6153109ba60d52d547d",
        "value": "1000",
        "fee": "",
        "nonce": "3",
        "data": "",
        "pubkey": "3056301006072a8648ce3d020106052b8104000a034200042fe59a96a81e55a592f5deedc331218f865a707e78254e2e5b476aa81e6dba17da86010a36a952c71d839dcdb9e20fbb5d29e7a739ee61444fe008d35c7557e8",
        "sign": "3046022100c3a396b901bc856063a86c031edbd12de4ac3d8a47d4f447417b787eb6935845022100f0d5def340f8265f390bd025afcc36bb50523a5ec2e75a77ca38dbeaf6735d34"
    }
}

#example for test-net
#python crypt_example_bin.py send-tx --net=test --to=0x00525d3f6326549b8974ef669f8fced6153109ba60d52d547d --value=1000 --pubkey=mh_public.pub --privkey=mh_private.pem --data="qwerty"
{
    "result": "ok",
    "params": "e5147c8c42c94344a067fe2ded493f15cc8e4299b3333f6651ecd3e6381bfefa"
}

#example for dev-net
#python crypt_example_bin.py send-tx --net=dev --to=0x00525d3f6326549b8974ef669f8fced6153109ba60d52d547d --value=1000 --pubkey=mh_public.pub --privkey=mh_private.pem
{
    "result": "ok",
    "params": "863b08cce1f6936645065cc0da050ed0028291af70516bccdb5eec6ad0cef0d5"
}

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