feat: add rpgp-demo

__crypto/rpgp-demo/src/main.rs

@@ -0,0 +1,34 @@
+// use pgp::composed::{key::SecretKeyParamsBuilder, KeyDetails, KeyType, SecretKey, SecretSubkey};
+// use pgp::packet::{KeyFlags, UserAttribute, UserId};
+// use pgp::types::{CompressionAlgorithm, PublicKeyTrait, SecretKeyTrait};
+use pgp::composed::{key::SecretKeyParamsBuilder, KeyType};
+use pgp::crypto::{hash::HashAlgorithm, sym::SymmetricKeyAlgorithm};
+use pgp::types::{CompressionAlgorithm, SecretKeyTrait};
+use smallvec::*;
+
+fn main() {
+    let mut key_params = SecretKeyParamsBuilder::default();
+    key_params
+        .key_type(KeyType::Rsa(2048))
+        .can_create_certificates(false)
+        .can_sign(true)
+        .primary_user_id("Me <me@example.com>".into())
+        .preferred_symmetric_algorithms(smallvec![
+        SymmetricKeyAlgorithm::AES256,
+    ])
+        .preferred_hash_algorithms(smallvec![
+        HashAlgorithm::SHA2_256,
+    ])
+        .preferred_compression_algorithms(smallvec![
+        CompressionAlgorithm::ZLIB,
+    ]);
+    let secret_key_params = key_params.build().expect("Must be able to create secret key params");
+    let secret_key = secret_key_params.generate().expect("Failed to generate a plain key.");
+    let passwd_fn = || String::new();
+    let signed_secret_key = secret_key.sign(passwd_fn).expect("Must be able to sign its own metadata");
+    let public_key = signed_secret_key.public_key();
+
+    // println!("{:?}", secret_key);
+    println!("{:?}", signed_secret_key);
+    println!("{:?}", public_key);
+}