feat: add crypto2-demo

__crypto/crypto2-demo/Cargo.lock

@@ -0,0 +1,31 @@
+# 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 = "crypto2"
+version = "0.2.0"
+source = "git+https://github.com/shadowsocks/crypto2#dbfd3bb4751abd9945370dee25350765039d050a"
+dependencies = [
+ "cfg-if",
+]
+
+[[package]]
+name = "crypto2-demo"
+version = "0.1.0"
+dependencies = [
+ "crypto2",
+ "hex",
+]
+
+[[package]]
+name = "hex"
+version = "0.4.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7f24254aa9a54b5c858eaee2f5bccdb46aaf0e486a595ed5fd8f86ba55232a70"