chore: checkpoint before Python removal

vendor/hkdf/benches/mod.rs

@@ -0,0 +1,27 @@
+#![feature(test)]
+extern crate test;
+
+use test::Bencher;
+
+type HkdfSha256 = hkdf::Hkdf<sha2::Sha256>;
+
+#[bench]
+fn hkdf_sha256_10(b: &mut Bencher) {
+    let mut okm = vec![0u8; 10];
+    b.iter(|| HkdfSha256::new(Some(&[]), &[]).expand(&[], &mut okm));
+    b.bytes = okm.len() as u64;
+}
+
+#[bench]
+fn hkdf_sha256_1024(b: &mut Bencher) {
+    let mut okm = vec![0u8; 1024];
+    b.iter(|| HkdfSha256::new(Some(&[]), &[]).expand(&[], &mut okm));
+    b.bytes = okm.len() as u64;
+}
+
+#[bench]
+fn hkdf_sha256_8000(b: &mut Bencher) {
+    let mut okm = vec![0u8; 8000];
+    b.iter(|| HkdfSha256::new(Some(&[]), &[]).expand(&[], &mut okm));
+    b.bytes = okm.len() as u64;
+}