Mine Genesis block :)
This commit is contained in:
parent
1d78e572f2
commit
c255e9d5a3
6 changed files with 172 additions and 1 deletions
2
.gitignore
vendored
2
.gitignore
vendored
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@ -1,3 +1,5 @@
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/target
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**/*.rs.bk
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/src/main
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/.vscode
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119
Cargo.lock
generated
119
Cargo.lock
generated
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@ -1,3 +1,122 @@
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[[package]]
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name = "bitflags"
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version = "1.0.1"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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[[package]]
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name = "fuchsia-zircon"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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dependencies = [
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"bitflags 1.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
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"fuchsia-zircon-sys 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
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]
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[[package]]
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name = "fuchsia-zircon-sys"
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version = "0.3.3"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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[[package]]
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name = "gcc"
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version = "0.3.54"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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[[package]]
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name = "libc"
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version = "0.2.40"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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[[package]]
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name = "rand"
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version = "0.3.22"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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dependencies = [
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"fuchsia-zircon 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
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"libc 0.2.40 (registry+https://github.com/rust-lang/crates.io-index)",
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"rand 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
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]
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[[package]]
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name = "rand"
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version = "0.4.2"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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dependencies = [
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"fuchsia-zircon 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
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"libc 0.2.40 (registry+https://github.com/rust-lang/crates.io-index)",
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"winapi 0.3.4 (registry+https://github.com/rust-lang/crates.io-index)",
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]
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[[package]]
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name = "redox_syscall"
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version = "0.1.37"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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[[package]]
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name = "rust-crypto"
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version = "0.2.36"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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dependencies = [
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"gcc 0.3.54 (registry+https://github.com/rust-lang/crates.io-index)",
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"libc 0.2.40 (registry+https://github.com/rust-lang/crates.io-index)",
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"rand 0.3.22 (registry+https://github.com/rust-lang/crates.io-index)",
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"rustc-serialize 0.3.24 (registry+https://github.com/rust-lang/crates.io-index)",
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"time 0.1.39 (registry+https://github.com/rust-lang/crates.io-index)",
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]
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[[package]]
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name = "rustc-serialize"
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version = "0.3.24"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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[[package]]
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name = "rustchain"
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version = "0.1.0"
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dependencies = [
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"rust-crypto 0.2.36 (registry+https://github.com/rust-lang/crates.io-index)",
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]
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[[package]]
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name = "time"
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version = "0.1.39"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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dependencies = [
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"libc 0.2.40 (registry+https://github.com/rust-lang/crates.io-index)",
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"redox_syscall 0.1.37 (registry+https://github.com/rust-lang/crates.io-index)",
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"winapi 0.3.4 (registry+https://github.com/rust-lang/crates.io-index)",
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]
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[[package]]
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name = "winapi"
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version = "0.3.4"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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dependencies = [
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"winapi-i686-pc-windows-gnu 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
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"winapi-x86_64-pc-windows-gnu 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
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]
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[[package]]
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name = "winapi-i686-pc-windows-gnu"
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version = "0.4.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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[[package]]
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name = "winapi-x86_64-pc-windows-gnu"
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version = "0.4.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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[metadata]
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"checksum bitflags 1.0.1 (registry+https://github.com/rust-lang/crates.io-index)" = "b3c30d3802dfb7281680d6285f2ccdaa8c2d8fee41f93805dba5c4cf50dc23cf"
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"checksum fuchsia-zircon 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)" = "2e9763c69ebaae630ba35f74888db465e49e259ba1bc0eda7d06f4a067615d82"
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"checksum fuchsia-zircon-sys 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)" = "3dcaa9ae7725d12cdb85b3ad99a434db70b468c09ded17e012d86b5c1010f7a7"
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"checksum gcc 0.3.54 (registry+https://github.com/rust-lang/crates.io-index)" = "5e33ec290da0d127825013597dbdfc28bee4964690c7ce1166cbc2a7bd08b1bb"
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"checksum libc 0.2.40 (registry+https://github.com/rust-lang/crates.io-index)" = "6fd41f331ac7c5b8ac259b8bf82c75c0fb2e469bbf37d2becbba9a6a2221965b"
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"checksum rand 0.3.22 (registry+https://github.com/rust-lang/crates.io-index)" = "15a732abf9d20f0ad8eeb6f909bf6868722d9a06e1e50802b6a70351f40b4eb1"
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"checksum redox_syscall 0.1.37 (registry+https://github.com/rust-lang/crates.io-index)" = "0d92eecebad22b767915e4d529f89f28ee96dbbf5a4810d2b844373f136417fd"
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"checksum rust-crypto 0.2.36 (registry+https://github.com/rust-lang/crates.io-index)" = "f76d05d3993fd5f4af9434e8e436db163a12a9d40e1a58a726f27a01dfd12a2a"
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"checksum rustc-serialize 0.3.24 (registry+https://github.com/rust-lang/crates.io-index)" = "dcf128d1287d2ea9d80910b5f1120d0b8eede3fbf1abe91c40d39ea7d51e6fda"
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"checksum time 0.1.39 (registry+https://github.com/rust-lang/crates.io-index)" = "a15375f1df02096fb3317256ce2cee6a1f42fc84ea5ad5fc8c421cfe40c73098"
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"checksum winapi 0.3.4 (registry+https://github.com/rust-lang/crates.io-index)" = "04e3bd221fcbe8a271359c04f21a76db7d0c6028862d1bb5512d85e1e2eb5bb3"
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"checksum winapi-i686-pc-windows-gnu 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "ac3b87c63620426dd9b991e5ce0329eff545bccbbb34f3be09ff6fb6ab51b7b6"
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"checksum winapi-x86_64-pc-windows-gnu 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "712e227841d057c1ee1cd2fb22fa7e5a5461ae8e48fa2ca79ec42cfc1931183f"
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@ -4,3 +4,4 @@ version = "0.1.0"
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authors = ["nutomic"]
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[dependencies]
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rust-crypto = "^0.2"
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37
src/lib/block.rs
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37
src/lib/block.rs
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use std::collections::HashSet;
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use crypto::digest::Digest;
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use crypto::sha2::Sha256;
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#[derive(Debug)]
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pub struct Block {
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pub height: u32,
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pub hash: String,
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pub previous_block_hash: String,
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pub data: HashSet<u8>,
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pub nonce: u32
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}
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const DIFFICULTY: u32 = 3;
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impl Block {
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pub fn mine_block(&mut self) {
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loop {
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self.nonce += 1;
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let hash = self.calculate_block_hash();
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let prefix = "0".repeat(DIFFICULTY as usize);
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if hash.starts_with(prefix.as_str()) {
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self.hash = hash;
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break;
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}
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}
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}
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pub fn calculate_block_hash(&self) -> String {
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// TODO: use byte array instead of string for hashing
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let data = format!("{}, {}, {:?}, {}", self.height, self.previous_block_hash, self.data, self.nonce);
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let mut hasher = Sha256::new();
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hasher.input(data.as_bytes());
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hasher.result_str()
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}
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}
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3
src/lib/mod.rs
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3
src/lib/mod.rs
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//this part could go to a crate and be used by web
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pub mod block;
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11
src/main.rs
11
src/main.rs
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use std::collections::HashSet;
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extern crate crypto;
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mod lib;
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use lib::block::Block;
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fn main() {
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println!("hello world")
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let mut block = Block { height: 0, previous_block_hash: "".to_string(), hash: "".to_string(), data: HashSet::new(), nonce: 0};
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block.mine_block();
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println!("block is {:?}", block);
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}
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