diff --git a/src/bin/duralumin-keygen.rs b/src/bin/duralumin-keygen.rs
index 96af9a0..cdfb86a 100644
--- a/src/bin/duralumin-keygen.rs
+++ b/src/bin/duralumin-keygen.rs
@@ -16,6 +16,21 @@ struct Opts {
     file: String,
 }
 
+fn fix_newline_ref(line: &mut String) {
+    if line.ends_with('\n') {
+        line.pop();
+
+        if line.ends_with('\r') {
+            line.pop();
+        }
+    }
+}
+fn fix_newline(mut line: String) -> String {
+    fix_newline_ref(&mut line);
+
+    line
+}
+
 fn main() -> OsshResult<()> {
     let opts = Opts::parse();
     println!("Generating ed25519 keypair:");
@@ -23,12 +38,24 @@ fn main() -> OsshResult<()> {
     print!("Enter a passphrase: ");
     std::io::stdout().flush()?;
     let passphrase = rpassword::read_password()?;
+    print!("Re-enter the same passphrase: ");
+    std::io::stdout().flush()?;
+    let passphrase2 = rpassword::read_password()?;
+
+    if passphrase != passphrase2 {
+        println!("passphrases do not match.");
+        Err(std::io::Error::new(
+            std::io::ErrorKind::InvalidInput,
+            "passphrase did not match.",
+        ))?;
+    }
 
     print!("Enter an optional ID []: ");
     std::io::stdout().flush()?;
     let id = {
         let mut id = String::new();
         std::io::stdin().read_line(&mut id)?;
+        fix_newline_ref(&mut id);
 
         if id.is_empty() {
             None
@@ -45,10 +72,15 @@ fn main() -> OsshResult<()> {
     let encrypt = {
         let mut line = String::new();
         std::io::stdin().read_line(&mut line)?;
+        fix_newline_ref(&mut line);
 
         line.to_lowercase() == "y"
     };
 
+    if encrypt {
+        println!("Using passphrase to encrypt key..");
+    }
+
     let fingerprint =
         keypair.fingerprint(osshkeys::keys::FingerprintHash::SHA256)?;
 
@@ -63,7 +95,7 @@ fn main() -> OsshResult<()> {
     println!("RandomArt:\n{}", randomart);
 
     let private_key = keypair.serialize_openssh(
-        Some(&passphrase),
+        encrypt.then(|| passphrase.as_str()),
         osshkeys::cipher::Cipher::Aes256_Ctr,
     )?;
     std::fs::write(&opts.file, private_key)?;
diff --git a/src/ed25519.rs b/src/ed25519.rs
index 0c17f3e..56a312f 100644
--- a/src/ed25519.rs
+++ b/src/ed25519.rs
@@ -1,113 +1,6 @@
 use osshkeys::{error::OsshResult, keys::ed25519::Ed25519KeyPair, KeyPair};
 use sha2::{Digest, Sha256};
 
-#[cfg(all(feature = "base64", feature = "bytes"))]
-mod asdf {
-    use std::io::{Cursor, Read};
-
-    use bytes::Buf;
-
-    pub struct Ed25519PrivateKey {}
-
-    const OPENSSH_BEGIN: &str = "-----BEGIN OPENSSH PRIVATE KEY-----";
-    const OPENSSH_END: &str = "-----END OPENSSH PRIVATE KEY-----";
-    const OPENSSH_MAGIC: &str = "openssh-key-v1\0";
-
-    impl Ed25519PrivateKey {
-        pub fn parse<S>(text: S) -> Option<()>
-        where
-            S: AsRef<str>,
-        {
-            let mut lines = text.as_ref().lines();
-
-            let data = (lines.next() == Some(OPENSSH_BEGIN))
-                .then(|| {
-                    let base64_content = lines
-                        .take_while(|&line| line != OPENSSH_END)
-                        .fold(String::new(), |mut acc, line| {
-                            acc.push_str(line);
-                            acc
-                        });
-
-                    base64::decode(&base64_content).ok()
-                })
-                .flatten()
-                .map(|data| Cursor::new(data))
-                .and_then(|mut data| {
-                    let mut magic = vec![0u8; OPENSSH_MAGIC.len()];
-                    data.read_exact(&mut magic).unwrap();
-
-                    // cypher name
-                    let cypher_len = data.get_u32();
-                    let mut cypher_name = vec![0u8; cypher_len as usize];
-                    data.read_exact(&mut cypher_name).unwrap();
-
-                    // kdf name
-                    let kdf_name_len = data.get_u32();
-                    let mut kdf_name = vec![0u8; kdf_name_len as usize];
-                    data.read_exact(&mut kdf_name).unwrap();
-
-                    // kdf
-                    let kdf_len = data.get_u32();
-                    let kdf = (kdf_len > 0).then(|| {
-                        let mut kdf = vec![0u8; kdf_len as usize];
-                        data.read_exact(&mut kdf).unwrap();
-                        kdf
-                    });
-
-                    // key_count should always be `1`
-                    let key_count = data.get_u32();
-                    assert_eq!(key_count, 1);
-
-                    // ssh public key
-
-                    let pubkey_len = data.get_u32() as usize;
-
-                    let keytype_len = data.get_u32() as usize;
-                    let mut keytype = vec![0u8; keytype_len];
-                    data.read_exact(&mut keytype).unwrap();
-
-                    let pub1_len = data.get_u32() as usize;
-                    let mut pub1 = vec![0u8; pub1_len];
-                    data.read_exact(&mut pub1).unwrap();
-
-                    let pub2_len = data.get_u32() as usize;
-                    let mut pub2 = vec![0u8; pub2_len];
-                    data.read_exact(&mut pub2).unwrap();
-
-                    println!("magic: {}", String::from_utf8_lossy(&magic));
-                    println!(
-                        "cypher: {}",
-                        String::from_utf8_lossy(&cypher_name)
-                    );
-                    println!("kdf: {}", String::from_utf8_lossy(&kdf_name));
-
-                    println!("keytype: {}", String::from_utf8_lossy(&keytype));
-                    println!("pub1[{}]: {:?}", pub1_len, &pub1);
-                    println!("pub2[{}]: {:?}", pub2_len, &pub2);
-
-                    Some(())
-                });
-
-            Some(())
-        }
-    }
-
-    mod tests {
-        use super::Ed25519PrivateKey;
-
-        #[test]
-        fn test_ed25519() {
-            Ed25519PrivateKey::parse(include_str!("../ed25519"));
-        }
-
-        #[test]
-        fn test_ed25519_passphrased() {
-            Ed25519PrivateKey::parse(include_str!("../ed25519-passphrased"));
-        }
-    }
-}
-
 pub fn generate_ed25519_keypair<S1, S2>(
     passphrase: S1,
     id: Option<S2>,
@@ -132,8 +25,6 @@ where
 pub mod randomart {
     use std::fmt::Write;
 
-    use osshkeys::error::OsshResult;
-
     const WIDTH: usize = 17;
     const HEIGHT: usize = 9;
     const TILES: &[char] = &[
@@ -229,6 +120,7 @@ pub mod randomart {
         }
     }
 
+    #[cfg(test)]
     mod tests {
         use super::*;