Merge pull request #28 from ecies/cgo-support

Decrypt benchmark added and README updated

README.md

@@ -42,3 +42,24 @@ func main() {
 	log.Printf("ciphertext decrypted: %s\n", string(plaintext))
 }
 ```
+
+## Benchmarks
+With CGO:
+```
+goos: linux
+goarch: amd64
+pkg: github.com/ecies/go/v2
+cpu: AMD Ryzen 7 5700G with Radeon Graphics         
+BenchmarkEncrypt-16        12250             98122 ns/op            5185 B/op         61 allocs/op
+BenchmarkDecrypt-16        23934             50046 ns/op            4097 B/op         46 allocs/op
+```
+
+Without CGO:
+```
+goos: linux
+goarch: amd64
+pkg: github.com/ecies/go/v2
+cpu: AMD Ryzen 7 5700G with Radeon Graphics         
+BenchmarkEncrypt-16        10000            112632 ns/op            5655 B/op         68 allocs/op
+BenchmarkDecrypt-16        14038             85641 ns/op            4725 B/op         56 allocs/op
+```

ecies_test.go

@@ -15,6 +15,7 @@ import (
 )
 
 const testingMessage = "helloworld"
+const testingJsonMessage = `{"code":0,"msg":"ok","data":{"pageNumber":1,"pageSize":10,"total":0,"list":[],"realTotal":0}}{"code":0,"msg":"ok","data":{"pageNumber":1,"pageSize":10,"total":0,"list":[],"realTotal":0}}{"code":0,"msg":"ok","data":{"pageNumber":1,"pageSize":10,"total":0,"list":[],"realTotal":0}}`
 const testingReceiverPubkeyHex = "0498afe4f150642cd05cc9d2fa36458ce0a58567daeaf5fde7333ba9b403011140a4e28911fcf83ab1f457a30b4959efc4b9306f514a4c3711a16a80e3b47eb58b"
 const testingReceiverPrivkeyHex = "95d3c5e483e9b1d4f5fc8e79b2deaf51362980de62dbb082a9a4257eef653d7d"
 const pythonBackend = "https://eciespy.herokuapp.com/"
@@ -26,13 +27,10 @@ func TestGenerateKey(t *testing.T) {
 	assert.NoError(t, err)
 }
 
-// go test -benchmem -run=^$ -bench ^BenchmarkEncrypt$ github.com/ecies/go/v2
-// MacBook Pro (15-inch, 2017)
-// BenchmarkEncrypt-8           286           4316673 ns/op         1616494 B/op      18813 allocs/op
 func BenchmarkEncrypt(b *testing.B) {
 	privkey := NewPrivateKeyFromBytes(testingReceiverPrivkey)
 
-	msg := []byte(`{"code":0,"msg":"ok","data":{"pageNumber":1,"pageSize":10,"total":0,"list":[],"realTotal":0}}{"code":0,"msg":"ok","data":{"pageNumber":1,"pageSize":10,"total":0,"list":[],"realTotal":0}}{"code":0,"msg":"ok","data":{"pageNumber":1,"pageSize":10,"total":0,"list":[],"realTotal":0}}`)
+	msg := []byte(testingJsonMessage)
 	for i := 0; i < b.N; i++ {
 		_, err := Encrypt(privkey.PublicKey, msg)
 		if err != nil {
@@ -41,6 +39,23 @@ func BenchmarkEncrypt(b *testing.B) {
 	}
 }
 
+func BenchmarkDecrypt(b *testing.B) {
+	privkey := NewPrivateKeyFromBytes(testingReceiverPrivkey)
+	msg := []byte(testingJsonMessage)
+
+	ciphertext, err := Encrypt(privkey.PublicKey, msg)
+	if err != nil {
+		b.Fail()
+	}
+
+	for i := 0; i < b.N; i++ {
+		_, err := Decrypt(privkey, ciphertext)
+		if err != nil {
+			b.Fail()
+		}
+	}
+}
+
 func TestEncryptAndDecrypt(t *testing.T) {
 	privkey := NewPrivateKeyFromBytes(testingReceiverPrivkey)