pbkdf2: add benchmarks
Add benchmarks for PBKDF2-HMAC-SHA1 and PBKDF2-HMAC-SHA256.
This is to help measure the crypto/hmac changes in CL 27458.
@@ -155,3 +155,22 @@ func TestWithHMACSHA1(t *testing.T) {
func TestWithHMACSHA256(t *testing.T) {
testHash(t, sha256.New, "SHA256", sha256TestVectors)
}
+
+var sink uint8
+
+func benchmark(b *testing.B, h func() hash.Hash) {
+ password := make([]byte, h().Size())
+ salt := make([]byte, 8)
+ for i := 0; i < b.N; i++ {
+ password = Key(password, salt, 4096, len(password), h)
+ }
+ sink += password[0]
+}
+
+func BenchmarkHMACSHA1(b *testing.B) {
+ benchmark(b, sha1.New)
+}
+
+func BenchmarkHMACSHA256(b *testing.B) {
+ benchmark(b, sha256.New)
+}
