diff --git a/README.md b/README.md
index bd96d9b..3e854bd 100644
--- a/README.md
+++ b/README.md
@@ -36,3 +36,19 @@ Published to 12D3KooWMJm**DUPA**tjcaHo8LARo5VHQ5uSxrt8Mdi5fytiRnnfD2f: {ipfs-pat
 In [examples](examples) you can find key pairs which contain word "funny"
 at the end of Peer ID. They are just for demonstration purposes.
 Please consider these private keys as already leaked.
+
+## Benchmarks
+
+This tool is using [Ed25519](https://godoc.org/golang.org/x/crypto/ed25519)
+algorithm because it is able to generate keys **2500 times faster**
+than [RSA](https://godoc.org/crypto/rsa) and both can work with IPFS.
+
+```
+goos: linux
+goarch: amd64
+pkg: github.com/meehow/peer-id-generator
+BenchmarkRSA-4       	      10	 162383811 ns/op
+BenchmarkEd25519-4   	   20000	     64165 ns/op
+PASS
+ok  	github.com/meehow/peer-id-generator	4.384s
+```
diff --git a/main_test.go b/main_test.go
new file mode 100644
index 0000000..acfb9f4
--- /dev/null
+++ b/main_test.go
@@ -0,0 +1,22 @@
+package main
+
+import (
+	"crypto/rand"
+	"testing"
+
+	crypto "github.com/libp2p/go-libp2p-crypto"
+)
+
+func BenchmarkRSA(b *testing.B) {
+	for i := 0; i < b.N; i++ {
+		crypto.GenerateRSAKeyPair(2048, rand.Reader)
+	}
+
+}
+
+func BenchmarkEd25519(b *testing.B) {
+	for i := 0; i < b.N; i++ {
+		crypto.GenerateEd25519Key(rand.Reader)
+	}
+
+}