From 39f3a24484ffc343d2d5225d5c419082aabb9baa Mon Sep 17 00:00:00 2001
From: Jakob Unterwurzacher
Date: Wed, 4 May 2016 19:09:14 +0200
Subject: stupidgcm: completely replace spacemonkeygo/openssl

---
 openssl_benchmark/openssl_test.go | 163 --------------------------------------
 1 file changed, 163 deletions(-)
 delete mode 100644 openssl_benchmark/openssl_test.go

(limited to 'openssl_benchmark/openssl_test.go')

diff --git a/openssl_benchmark/openssl_test.go b/openssl_benchmark/openssl_test.go
deleted file mode 100644
index 1530f9b..0000000
--- a/openssl_benchmark/openssl_test.go
+++ /dev/null
@@ -1,163 +0,0 @@
-package benchmark
-
-// Benchmark go built-int GCM against spacemonkey openssl bindings
-//
-// Note: This is deprecated in favor of the benchmarks integrated in cryptfs.
-//
-// Run benchmark:
-// go test -bench=.
-
-import (
-	"bytes"
-	"crypto/aes"
-	"crypto/cipher"
-	"fmt"
-	"os"
-	"testing"
-
-	"github.com/spacemonkeygo/openssl"
-
-	"github.com/rfjakob/gocryptfs/internal/cryptocore"
-)
-
-func TestMain(m *testing.M) {
-
-	fmt.Printf("Benchmarking AES-GCM-%d with 4kB block size\n", cryptocore.KeyLen*8)
-
-	r := m.Run()
-	os.Exit(r)
-}
-
-func BenchmarkGoEnc4K(b *testing.B) {
-	buf := make([]byte, 1024*4)
-	b.SetBytes(int64(len(buf)))
-
-	var key [cryptocore.KeyLen]byte
-	var nonce [12]byte
-	aes, _ := aes.NewCipher(key[:])
-	aesgcm, _ := cipher.NewGCM(aes)
-	var out []byte
-	// This would be fileID + blockNo
-	aData := make([]byte, 24)
-	b.ResetTimer()
-	for i := 0; i < b.N; i++ {
-		out = aesgcm.Seal(out[:0], nonce[:], buf, aData)
-	}
-}
-
-func BenchmarkGoDec4K(b *testing.B) {
-	buf := make([]byte, 1024*4)
-	b.SetBytes(int64(len(buf)))
-
-	var key [cryptocore.KeyLen]byte
-	var nonce [12]byte
-	aes, _ := aes.NewCipher(key[:])
-	aesgcm, _ := cipher.NewGCM(aes)
-	var out []byte
-	out = aesgcm.Seal(out[:0], nonce[:], buf, nil)
-
-	b.ResetTimer()
-	for i := 0; i < b.N; i++ {
-		_, err := aesgcm.Open(buf[:0], nonce[:], out, nil)
-		if err != nil {
-			b.Errorf("Open: %v", err)
-		}
-	}
-}
-
-func BenchmarkOpensslEnc4K(b *testing.B) {
-	buf := make([]byte, 1024*4)
-	b.SetBytes(int64(len(buf)))
-
-	var key [cryptocore.KeyLen]byte
-	var nonce [12]byte
-
-	// This would be fileID + blockNo
-	aData := make([]byte, 24)
-
-	var ciphertext bytes.Buffer
-	var part []byte
-
-	b.ResetTimer()
-	for i := 0; i < b.N; i++ {
-		ciphertext.Reset()
-		ectx, err := openssl.NewGCMEncryptionCipherCtx(cryptocore.KeyLen*8, nil, key[:], nonce[:])
-		if err != nil {
-			b.FailNow()
-		}
-		err = ectx.ExtraData(aData)
-		if err != nil {
-			b.FailNow()
-		}
-		part, err = ectx.EncryptUpdate(buf)
-		if err != nil {
-			b.FailNow()
-		}
-		ciphertext.Write(part)
-		part, err = ectx.EncryptFinal()
-		if err != nil {
-			b.FailNow()
-		}
-		ciphertext.Write(part)
-		part, err = ectx.GetTag()
-		if err != nil {
-			b.FailNow()
-		}
-		ciphertext.Write(part)
-	}
-}
-
-func BenchmarkOpensslDec4K(b *testing.B) {
-	buf := makeOpensslCiphertext()
-	b.SetBytes(int64(1024 * 4))
-
-	tag := buf[4096:]
-	buf = buf[0:4096]
-
-	var key [cryptocore.KeyLen]byte
-	var nonce [12]byte
-
-	var plaintext bytes.Buffer
-	var part []byte
-
-	b.ResetTimer()
-	for i := 0; i < b.N; i++ {
-		plaintext.Reset()
-		dctx, err := openssl.NewGCMDecryptionCipherCtx(cryptocore.KeyLen*8, nil, key[:], nonce[:])
-		if err != nil {
-			b.FailNow()
-		}
-		part, err = dctx.DecryptUpdate(buf)
-		if err != nil {
-			b.FailNow()
-		}
-		plaintext.Write(part)
-		err = dctx.SetTag(tag)
-		if err != nil {
-			b.FailNow()
-		}
-		part, err = dctx.DecryptFinal()
-		if err != nil {
-			b.FailNow()
-		}
-		plaintext.Write(part)
-	}
-}
-
-func makeOpensslCiphertext() []byte {
-	buf := make([]byte, 1024*4)
-	var key [cryptocore.KeyLen]byte
-	var nonce [12]byte
-	var ciphertext bytes.Buffer
-	var part []byte
-
-	ectx, _ := openssl.NewGCMEncryptionCipherCtx(cryptocore.KeyLen*8, nil, key[:], nonce[:])
-	part, _ = ectx.EncryptUpdate(buf)
-	ciphertext.Write(part)
-	part, _ = ectx.EncryptFinal()
-	ciphertext.Write(part)
-	part, _ = ectx.GetTag()
-	ciphertext.Write(part)
-
-	return ciphertext.Bytes()
-}
-- 
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