This sample aims to follow the Programming Blockchain guide and apply it to Xamarin.Forms.
The repo will be updated in segments as we follow along with the NBitcoin guide, providing the community with a sample of how you can apply this in our own projects
There are two Bitcoin networks:
- TestNet is a Bitcoin network for development purposes. Bitcoins on this network worth nothing.
- MainNet is the Bitcoin network everybody uses.
Your Bitcoin Address is what your share to the world to get paid. And your wallet uses a private key to spend the money you receive on this address.
Generate a private key
Key privateKey = new Key(); // Get random private key
PubKey publicKey = privateKey.PubKey;
Console.WriteLine(publicKey); // 0251036303164f6c458e9f7abecb4e55e5ce9ec2b2f1d06d633c9653a07976560c
// 1PUYsjwfNmX64wS368ZR5FMouTtUmvtmTY
var addr = publicKey.GetAddress(Network.Main);
Console.WriteLine(addr);
// n3zWAo2eBnxLr3ueohXnuAa8mTVBhxmPhq
var testAddr = publicKey.GetAddress(Network.TestNet);
Console.WriteLine(testAddr);
var publicKeyHash = publicKey.Hash;
Console.WriteLine(publicKeyHash); // f6889b21b5540353a29ed18c45ea0031280c42cf
var mainNetAddress = publicKeyHash.GetAddress(Network.Main);
var testNetAddress = publicKeyHash.GetAddress(Network.TestNet);Fact: A public key hash is generated by using a SHA256 hash on the public key, then a RIPEMD160 hash on the result, using Big Endian notation. The function could look like this: RIPEMD160(SHA256(pubkey))
The Base58Check encoding has checksums to prevent typos, and lack ambiguous characters like 0 and O.
Console.WriteLine(mainNetAddress); // 1PUYsjwfNmX64wS368ZR5FMouTtUmvtmTY
Console.WriteLine(testNetAddress); // n3zWAo2eBnxLr3ueohXnuAa8mTVBhxmPhqComing Soon!