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https://github.com/mit-dci/cryptokernel
A SDK for implementing blockchain-based digital currencies
https://github.com/mit-dci/cryptokernel
blockchain cryptocurrency cryptography digital-currency lua peer-to-peer proof-of-stake proof-of-work schnorr-signatures smart-contracts
Last synced: 8 days ago
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A SDK for implementing blockchain-based digital currencies
- Host: GitHub
- URL: https://github.com/mit-dci/cryptokernel
- Owner: mit-dci
- License: gpl-3.0
- Created: 2016-06-14T19:35:11.000Z (over 8 years ago)
- Default Branch: master
- Last Pushed: 2020-10-30T23:29:30.000Z (about 4 years ago)
- Last Synced: 2023-11-07T15:35:08.137Z (about 1 year ago)
- Topics: blockchain, cryptocurrency, cryptography, digital-currency, lua, peer-to-peer, proof-of-stake, proof-of-work, schnorr-signatures, smart-contracts
- Language: C++
- Homepage: https://cryptokernel.org
- Size: 9.77 MB
- Stars: 171
- Watchers: 39
- Forks: 66
- Open Issues: 3
-
Metadata Files:
- Readme: README.md
- License: LICENSE
Awesome Lists containing this project
README
CryptoKernel
============
CryptoKernel is a C++ library intended to help create blockchain-based digital currencies. It contains modules for key-value storage with JSON, peer-to-peer networking, ECDSA & Schnorr key generation, signing and verifying, big number operations, logging and a blockchain class for handling a Bitcoin-style write-only log. Designed to be object-oriented and easy to use, it provides transaction scripting with Lua 5.3, custom consensus algorithms (e.g Proof of Work, Authorised Verifier Round-Robin) and custom transaction types.
K320
------------------------
We have used Cryptokernel to implement an experimental digital currency called K320. Its name derives from its monetary policy – Milton Friedman’s K% rule at a rate of 320 basis points or 3.2% growth per year (https://en.wikipedia.org/wiki/Friedman%27s_k-percent_rule). This known rate removes the need for trust in the decisions of a central authority, making monetary supply policy completely transparent. K320 is designed to build up the initial money supply relatively quickly then switch to the K% rule for monetary growth.
In K320, blocks are produced every 2.5 minutes. The block reward starts at 100 coins per block, diminishing for 8 years until the year 2025 at block 1,741,620 and a supply of 68,720,300 coins. At this point the block reward switches to a constant 3.2% per year. At 210,240 blocks per year, that is .0000152% of total supply per block as reward. For example, the first block reward after the switch to the constant reward rate will be ~10.45; (0.000000152*68,720,300). For a more detailed description of this see: https://github.com/mit-dci/CryptoKernel/blob/master/src/client/multicoin.cpp#L80
K320 is currently implemented by default when you run the CryptoKernel software.
Building on Ubuntu 16.04
------------------------
```
./installdeps.sh
premake5 gmake2
make
```
The resulting binary will be in the `bin/Static/Debug` directory.
It is also possible to compile with other options. See `make help` and `premake5 --help`
for a list.
Usage
-----
See the source files in src/client/ for example usage. CryptoKernel ships with a Proof of Work coin built-in called K320 that works out of the box. For more information about the API check the documentation.
To launch CryptoKernel as K320 with its default setup, simply write:
```
./ckd
```
To get a list of command line RPC commands use:
```
./ckd help
```
To make ckd run in daemon mode use:
```
./ckd -daemon
```
API Reference
-------------
Build the documentation with doxyblocks.
```
premake5 gmake2 --with-docs
make
```
Roadmap
===
(in no particular order)
- Load external contract code to avoid duplication
when propagating contracts
- Standardised address format (not just public keys)
- BFT consensus module
- Raft consensus module
- Proof of Stake consensus module
- HD key generation