move submodules in-tree

blog/helpers/fake-openssh-key/src/lib.rs

@@ -0,0 +1,51 @@
+use cluelessh_keys::{
+    private::{KeyEncryptionParams, PlaintextPrivateKey, PrivateKey},
+    public::{PublicKey, PublicKeyWithComment},
+};
+use wasm_bindgen::prelude::*;
+
+#[wasm_bindgen]
+pub fn generate_fake(public_key: &str) -> Result<String, String> {
+    let public_key = public_key
+        .parse::<PublicKeyWithComment>()
+        .map_err(|err| format!("invalid public key: {err}"))?;
+
+    let mut fake_private_key = PlaintextPrivateKey::generate(
+        "".into(),
+        cluelessh_keys::KeyGenerationParams {
+            key_type: match public_key.key {
+                PublicKey::Ed25519 { .. } => cluelessh_keys::KeyType::Ed25519,
+                PublicKey::EcdsaSha2NistP256 { .. } => cluelessh_keys::KeyType::Ecdsa,
+            },
+        },
+    );
+
+    match public_key.key {
+        PublicKey::Ed25519 { public_key } => {
+            let PrivateKey::Ed25519 {
+                public_key: fake_public_key,
+                ..
+            } = &mut fake_private_key.private_key
+            else {
+                panic!()
+            };
+            *fake_public_key = public_key;
+        }
+        PublicKey::EcdsaSha2NistP256 { public_key } => {
+            let PrivateKey::EcdsaSha2NistP256 {
+                public_key: fake_public_key,
+                ..
+            } = &mut fake_private_key.private_key
+            else {
+                panic!()
+            };
+            *fake_public_key = public_key;
+        }
+    }
+
+    let fake_private_key = fake_private_key
+        .encrypt(KeyEncryptionParams::plaintext())
+        .map_err(|err| format!("failed to encode key: {err}"))?;
+
+    Ok(fake_private_key.to_bytes_armored())
+}