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Diffstat (limited to 'internal/speed')
-rw-r--r--internal/speed/speed.go16
-rw-r--r--internal/speed/speed_test.go8
2 files changed, 20 insertions, 4 deletions
diff --git a/internal/speed/speed.go b/internal/speed/speed.go
index 950bbda..47fe8c9 100644
--- a/internal/speed/speed.go
+++ b/internal/speed/speed.go
@@ -23,7 +23,7 @@ import (
const adLen = 24
// gocryptfs uses fixed-size 4 kiB blocks
-const blockSize = 4096
+const gocryptfsBlockSize = 4096
// Run - run the speed the test and print the results.
func Run() {
@@ -83,6 +83,11 @@ func randBytes(n int) []byte {
// bEncrypt benchmarks the encryption speed of cipher "c"
func bEncrypt(b *testing.B, c cipher.AEAD) {
+ bEncryptBlockSize(b, c, gocryptfsBlockSize)
+}
+
+// bEncryptBlockSize benchmarks the encryption speed of cipher "c" at block size "blockSize"
+func bEncryptBlockSize(b *testing.B, c cipher.AEAD, blockSize int) {
authData := randBytes(adLen)
iv := randBytes(c.NonceSize())
in := make([]byte, blockSize)
@@ -97,13 +102,12 @@ func bEncrypt(b *testing.B, c cipher.AEAD) {
// Encrypt and append to nonce
c.Seal(dst, iv, in, authData)
}
-
}
func bDecrypt(b *testing.B, c cipher.AEAD) {
authData := randBytes(adLen)
iv := randBytes(c.NonceSize())
- plain := randBytes(blockSize)
+ plain := randBytes(gocryptfsBlockSize)
ciphertext := c.Seal(iv, iv, plain, authData)
b.SetBytes(int64(len(plain)))
@@ -129,6 +133,10 @@ func bStupidGCM(b *testing.B) {
// bGoGCM benchmarks Go stdlib GCM
func bGoGCM(b *testing.B) {
+ bGoGCMBlockSize(b, gocryptfsBlockSize)
+}
+
+func bGoGCMBlockSize(b *testing.B, blockSize int) {
gAES, err := aes.NewCipher(randBytes(32))
if err != nil {
b.Fatal(err)
@@ -137,7 +145,7 @@ func bGoGCM(b *testing.B) {
if err != nil {
b.Fatal(err)
}
- bEncrypt(b, gGCM)
+ bEncryptBlockSize(b, gGCM, blockSize)
}
// bAESSIV benchmarks AES-SIV from github.com/aperturerobotics/jacobsa-crypto/siv
diff --git a/internal/speed/speed_test.go b/internal/speed/speed_test.go
index 5f3001b..39ef918 100644
--- a/internal/speed/speed_test.go
+++ b/internal/speed/speed_test.go
@@ -3,6 +3,7 @@ package speed
import (
"crypto/aes"
"crypto/cipher"
+ "fmt"
"testing"
"golang.org/x/crypto/chacha20poly1305"
@@ -38,6 +39,13 @@ func BenchmarkGoGCM(b *testing.B) {
bGoGCM(b)
}
+func BenchmarkGoGCMBlockSize(b *testing.B) {
+ for blockSize := 1024; blockSize <= 1024*1024; blockSize *= 2 {
+ name := fmt.Sprintf("%d", blockSize)
+ b.Run(name, func(b *testing.B) { bGoGCMBlockSize(b, blockSize) })
+ }
+}
+
func BenchmarkGoGCMDecrypt(b *testing.B) {
gAES, err := aes.NewCipher(randBytes(32))
if err != nil {