diff --git a/example/main.go b/example/main.go
new file mode 100644
index 0000000..f9221c1
--- /dev/null
+++ b/example/main.go
@@ -0,0 +1,102 @@
+package main
+
+import (
+	"bytes"
+	"crypto/cipher"
+	"encoding/hex"
+	"hash"
+	"log"
+
+	"github.com/RyuaNerin/go-krypto/aria"
+	"github.com/RyuaNerin/go-krypto/has160"
+	"github.com/RyuaNerin/go-krypto/hight"
+	"github.com/RyuaNerin/go-krypto/lea"
+	"github.com/RyuaNerin/go-krypto/lsh256"
+	"github.com/RyuaNerin/go-krypto/lsh512"
+	"github.com/RyuaNerin/go-krypto/seed"
+)
+
+var (
+	blockKey = []byte("password")
+	input    = []byte("Hello, World!")
+)
+
+func main() {
+	printBlocks()
+	printHashs()
+}
+
+func printBlocks() {
+	blocks := []struct {
+		name    string
+		keyBits int
+		f       func(key []byte) (cipher.Block, error)
+	}{
+		{"ARIA-128", 128, aria.NewCipher},
+		{"ARIA-196", 196, aria.NewCipher},
+		{"ARIA-256", 256, aria.NewCipher},
+		{"HIGHT-128", 128, hight.NewCipher},
+		{"LEA-256", 128, lea.NewCipher},
+		{"LEA-256", 196, lea.NewCipher},
+		{"LEA-256", 256, lea.NewCipher},
+		{"SEED-128", 128, seed.NewCipher},
+		{"SEED-256", 256, seed.NewCipher},
+	}
+
+	dst := make([]byte, 100)
+	dst2 := make([]byte, 100)
+
+	for _, b := range blocks {
+		key := pkcs7pad(blockKey, b.keyBits/8)
+		c, err := b.f(key)
+		if err != nil {
+			log.Fatal(err)
+			return
+		}
+
+		blockSize := c.BlockSize()
+
+		input := pkcs7pad(input, blockSize)
+
+		for i := 0; i < len(input); i += blockSize {
+			c.Encrypt(dst[i:], input[i:])
+		}
+		for i := 0; i < len(input); i += blockSize {
+			c.Decrypt(dst2[i:], dst[i:])
+		}
+
+		log.Println(b.name, hex.EncodeToString(input), "->", hex.EncodeToString(dst[:len(input)]), "->", hex.EncodeToString(dst2[:len(input)]))
+	}
+}
+
+func printHashs() {
+	Hashes := []struct {
+		name string
+		h    hash.Hash
+	}{
+		{"HAS-165", has160.New()},
+		{"LSH-256-224", lsh256.New224()},
+		{"LSH-256", lsh256.New()},
+		{"LSH-512-224", lsh512.New224()},
+		{"LSH-512-256", lsh512.New256()},
+		{"LSH-512-384", lsh512.New384()},
+		{"LSH-512", lsh512.New()},
+	}
+
+	dst := make([]byte, 100)
+
+	for _, h := range Hashes {
+		h.h.Write(input)
+		dst = h.h.Sum(dst[:])
+
+		log.Println(h.name, hex.EncodeToString(input), "->", hex.EncodeToString(dst))
+	}
+}
+
+func pkcs7pad(data []byte, blockSize int) []byte {
+	padLen := blockSize - len(data)%blockSize
+	padding := bytes.Repeat([]byte{byte(padLen)}, padLen)
+
+	out := append(make([]byte, 0, blockSize), data...)
+	return append(out, padding...)
+}