src/bin/cipherbench.rs: cipher speed test with large blocks

src/bin/cipherbench.rs

@@ -0,0 +1,70 @@
+use failure::*;
+
+//  chacha20-poly1305
+
+fn rate_test(name: &str, bench: & Fn() -> usize) {
+
+    let start = std::time::SystemTime::now();
+    let duration = std::time::Duration::new(1, 0);
+
+    let mut bytes = 0;
+
+    loop {
+        bytes += bench();
+        let elapsed = start.elapsed().unwrap();
+        if elapsed > duration { break; }
+    }
+
+    let elapsed = start.elapsed().unwrap();
+    let elapsed = (elapsed.as_secs() as f64) +
+        (elapsed.subsec_millis() as f64)/1000.0;
+
+    println!("{} {} MB/s", name, (bytes as f64)/(elapsed*1024.0*1024.0));
+}
+
+
+fn main() -> Result<(), Error> {
+
+    let input = proxmox::sys::linux::random_data(1024*1024)?;
+    let key = proxmox::sys::linux::random_data(32)?;
+
+    let iv = proxmox::sys::linux::random_data(16)?;
+
+    let start = std::time::SystemTime::now();
+    let duration = std::time::Duration::new(1, 0);
+
+    rate_test("sha256", &|| {
+        openssl::sha::sha256(&input);
+        input.len()
+    });
+
+    let cipher =  openssl::symm::Cipher::aes_256_gcm();
+
+    rate_test("aes-256-gcm", &|| {
+        let mut tag = [0u8;16];
+        openssl::symm::encrypt_aead(
+            cipher,
+            &key,
+            Some(&iv),
+            b"",
+            &input,
+            &mut tag).unwrap();
+        input.len()
+    });
+
+    let cipher =  openssl::symm::Cipher::chacha20_poly1305();
+
+    rate_test("chacha20-poly1305", &|| {
+        let mut tag = [0u8;16];
+        openssl::symm::encrypt_aead(
+            cipher,
+            &key,
+            Some(&iv),
+            b"",
+            &input,
+            &mut tag).unwrap();
+        input.len()
+    });
+
+    Ok(())
+}