chore: reorg

__crypto/ring/Cargo.lock

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__crypto/ring/Cargo.toml

@@ -0,0 +1,11 @@
+[package]
+name = "ring"
+version = "0.1.0"
+authors = ["Hatter Jiang <jht5945@gmail.com>"]
+edition = "2018"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+ring = "0.16.13"
+hex = "0.4.2"

__crypto/ring/src/main.rs

@@ -0,0 +1,42 @@
+use ring::{
+    signature::{ KeyPair, Ed25519KeyPair, UnparsedPublicKey, ED25519 },
+    hmac, rand, error::Unspecified,
+    digest,
+};
+
+const SEED_LEN: usize = 32;
+
+fn main() -> Result<(), Unspecified> {
+    {
+        println!("{} HHmac {}", "-".repeat(10), "-".repeat(10));
+        let rng = rand::SystemRandom::new();
+        let key = hmac::Key::generate(hmac::HMAC_SHA256, &rng)?;
+
+        let msg = "hello, world";
+        let tag = hmac::sign(&key, msg.as_bytes());
+
+        println!("{:?}", tag);
+        hmac::verify(&key, msg.as_bytes(), tag.as_ref())?;
+        println!("Verify success");
+    }
+    {
+        println!("{} SHA256 {}", "-".repeat(10), "-".repeat(10));
+        let sha256 = digest::digest(&digest::SHA256, b"hello, world");
+        println!("{:?}", sha256);
+    }
+    {
+        println!("{} EdDSA  {}", "-".repeat(10), "-".repeat(10));
+        let rng = rand::SystemRandom::new();
+        let seed: [u8; SEED_LEN] = rand::generate(&rng)?.expose();
+        println!("seed: {}", hex::encode(&seed));
+        let key_pair = Ed25519KeyPair::from_seed_unchecked(&seed)?;
+        println!("private: {:?}", key_pair);
+        let sig = key_pair.sign(&"hello world".as_bytes());
+        println!("signature: {}", hex::encode(sig.as_ref()));
+        let public_key = key_pair.public_key().as_ref();
+        let verify_result = UnparsedPublicKey::new(&ED25519, &public_key).verify(&"hello world".as_bytes(), sig.as_ref());
+        println!("verify: {}", verify_result.is_ok());
+    }
+
+    Ok(())
+}