feat: add bc1-btc-address

__crypto/bc1-btc-address/src/main.rs

@@ -0,0 +1,29 @@
+use bitcoin::key::Secp256k1;
+use bitcoin::{Address, CompressedPublicKey, Network, PrivateKey};
+use rand::RngCore;
+
+// generate btc address:
+// https://coinb.in/#newSegWit
+fn main() {
+    let secp = Secp256k1::new();
+    let mut sk_bytes = [0u8; 32];
+    rand::rng().fill_bytes(&mut sk_bytes);
+    let secret_key = PrivateKey::from_slice(&sk_bytes, Network::Bitcoin).unwrap();
+
+    // let secret_key = PrivateKey::from_wif("L2HajtedHgDT16o3Er8L8tyRrPNbXkeBK69vhGi7K9eK4Yg3dJuj").unwrap();
+
+    let public_key = secret_key.public_key(&secp);
+    let compress_public_key = CompressedPublicKey::try_from(public_key).unwrap();
+
+    // 构造 P2WPKH 地址 (bc1 开头)
+    let address = Address::p2wpkh(&compress_public_key, Network::Bitcoin);
+    let address = address.to_string();
+
+    println!("Private Key (WIF): {}", secret_key.to_wif());
+    println!("Public Key: {}", public_key);
+    println!(
+        "Public Key: {}",
+        hex::encode(&public_key.inner.serialize_uncompressed())
+    );
+    println!("SegWit Address (bc1): {}", address);
+}