From c8837b21f6ed166c513ec00543007bc8aaaa8d9a Mon Sep 17 00:00:00 2001
From: Hatter Jiang <jht5945@gmail.com>
Date: Sun, 1 Jan 2023 20:54:02 +0800
Subject: [PATCH] feat: add sharmir demo

---
 README.md                        |  3 +-
 __crypto/shamir-demo/Cargo.lock  | 95 ++++++++++++++++++++++++++++++++
 __crypto/shamir-demo/Cargo.toml  |  9 +++
 __crypto/shamir-demo/src/main.rs | 16 ++++++
 4 files changed, 122 insertions(+), 1 deletion(-)
 create mode 100644 __crypto/shamir-demo/Cargo.lock
 create mode 100644 __crypto/shamir-demo/Cargo.toml
 create mode 100644 __crypto/shamir-demo/src/main.rs

diff --git a/README.md b/README.md
index 9e56e3a..92f0464 100644
--- a/README.md
+++ b/README.md
@@ -33,6 +33,7 @@ Project or files:
 │   ├── ring
 │   ├── rsa
 │   ├── secp256k1
+│   ├── shamir-demo
 │   ├── simple_contract
 │   ├── ssh-keys
 │   └── totp
@@ -258,6 +259,6 @@ Project or files:
     ├── vec.rs
     └── while.rs
 
-227 directories, 38 files
+228 directories, 38 files
 ```
 
diff --git a/__crypto/shamir-demo/Cargo.lock b/__crypto/shamir-demo/Cargo.lock
new file mode 100644
index 0000000..8ab3952
--- /dev/null
+++ b/__crypto/shamir-demo/Cargo.lock
@@ -0,0 +1,95 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 3
+
+[[package]]
+name = "cfg-if"
+version = "1.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd"
+
+[[package]]
+name = "getrandom"
+version = "0.1.16"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8fc3cb4d91f53b50155bdcfd23f6a4c39ae1969c2ae85982b135750cccaf5fce"
+dependencies = [
+ "cfg-if",
+ "libc",
+ "wasi",
+]
+
+[[package]]
+name = "libc"
+version = "0.2.139"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "201de327520df007757c1f0adce6e827fe8562fbc28bfd9c15571c66ca1f5f79"
+
+[[package]]
+name = "ppv-lite86"
+version = "0.2.17"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5b40af805b3121feab8a3c29f04d8ad262fa8e0561883e7653e024ae4479e6de"
+
+[[package]]
+name = "rand"
+version = "0.7.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6a6b1679d49b24bbfe0c803429aa1874472f50d9b363131f0e89fc356b544d03"
+dependencies = [
+ "getrandom",
+ "libc",
+ "rand_chacha",
+ "rand_core",
+ "rand_hc",
+]
+
+[[package]]
+name = "rand_chacha"
+version = "0.2.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f4c8ed856279c9737206bf725bf36935d8666ead7aa69b52be55af369d193402"
+dependencies = [
+ "ppv-lite86",
+ "rand_core",
+]
+
+[[package]]
+name = "rand_core"
+version = "0.5.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "90bde5296fc891b0cef12a6d03ddccc162ce7b2aff54160af9338f8d40df6d19"
+dependencies = [
+ "getrandom",
+]
+
+[[package]]
+name = "rand_hc"
+version = "0.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ca3129af7b92a17112d59ad498c6f81eaf463253766b90396d39ea7a39d6613c"
+dependencies = [
+ "rand_core",
+]
+
+[[package]]
+name = "shamir"
+version = "2.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f3334e0accec0ef99f58b5d46fb41c32395f6531dde1e5f5c366e79e50dfe317"
+dependencies = [
+ "rand",
+]
+
+[[package]]
+name = "shamir-demo"
+version = "0.1.0"
+dependencies = [
+ "shamir",
+]
+
+[[package]]
+name = "wasi"
+version = "0.9.0+wasi-snapshot-preview1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "cccddf32554fecc6acb585f82a32a72e28b48f8c4c1883ddfeeeaa96f7d8e519"
diff --git a/__crypto/shamir-demo/Cargo.toml b/__crypto/shamir-demo/Cargo.toml
new file mode 100644
index 0000000..841dd6d
--- /dev/null
+++ b/__crypto/shamir-demo/Cargo.toml
@@ -0,0 +1,9 @@
+[package]
+name = "shamir-demo"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+shamir = "2.0.0"
diff --git a/__crypto/shamir-demo/src/main.rs b/__crypto/shamir-demo/src/main.rs
new file mode 100644
index 0000000..e8c1de8
--- /dev/null
+++ b/__crypto/shamir-demo/src/main.rs
@@ -0,0 +1,16 @@
+use shamir::SecretData;
+
+fn main() {
+    let secret_data = SecretData::with_secret("Hello World!", 3);
+
+    let share1 = secret_data.get_share(1).unwrap();
+    let share2 = secret_data.get_share(2).unwrap();
+    let share3 = secret_data.get_share(3).unwrap();
+    let share4 = secret_data.get_share(4).unwrap();
+
+    println!("{:?}\n{:?}\n{:?}\n{:?}", share1, share2, share3, share4);
+    let recovered = SecretData::recover_secret(3, vec![share1, share2, share3]).unwrap();
+
+    println!("Recovered: {}", recovered);
+}
+