commit 9c108160bebd6bad3b4ca85fdb0bdae52f1e32fb
Author: 李光春 <gc@dtapp.net>
Date:   Tue May 24 22:37:55 2022 +0800

    - init

diff --git a/.drone.yml b/.drone.yml
new file mode 100644
index 0000000..41d1aeb
--- /dev/null
+++ b/.drone.yml
@@ -0,0 +1,11 @@
+kind: pipeline
+type: docker
+name: clone
+
+steps:
+  - name: Test
+    image: golang:1.18
+    commands:
+      - go env -w GO111MODULE=on
+      - go env -w GOPROXY=https://goproxy.cn,direct
+      - go test -v ./...
\ No newline at end of file
diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..442794a
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,8 @@
+.env
+.git
+.svn
+.idea
+.vscode
+*.log
+gomod.sh
+/vendor/
\ No newline at end of file
diff --git a/go.mod b/go.mod
new file mode 100644
index 0000000..b61ef4f
--- /dev/null
+++ b/go.mod
@@ -0,0 +1,3 @@
+module go.dtapp.net/goaes
+
+go 1.18
diff --git a/goaes.go b/goaes.go
new file mode 100644
index 0000000..3692ec2
--- /dev/null
+++ b/goaes.go
@@ -0,0 +1,57 @@
+package goaes
+
+import (
+	"bytes"
+	"crypto/aes"
+	"crypto/cipher"
+	"encoding/base64"
+)
+
+// Encrypt 加密 aes_128_cbc
+func Encrypt(encryptStr string, key []byte, iv string) (string, error) {
+	encryptBytes := []byte(encryptStr)
+	block, err := aes.NewCipher(key)
+	if err != nil {
+		return "", err
+	}
+
+	blockSize := block.BlockSize()
+	encryptBytes = pkcs5Padding(encryptBytes, blockSize)
+
+	blockMode := cipher.NewCBCEncrypter(block, []byte(iv))
+	encrypted := make([]byte, len(encryptBytes))
+	blockMode.CryptBlocks(encrypted, encryptBytes)
+	return base64.URLEncoding.EncodeToString(encrypted), nil
+}
+
+// Decrypt 解密
+func Decrypt(decryptStr string, key []byte, iv string) (string, error) {
+	decryptBytes, err := base64.URLEncoding.DecodeString(decryptStr)
+	if err != nil {
+		return "", err
+	}
+
+	block, err := aes.NewCipher(key)
+	if err != nil {
+		return "", err
+	}
+
+	blockMode := cipher.NewCBCDecrypter(block, []byte(iv))
+	decrypted := make([]byte, len(decryptBytes))
+
+	blockMode.CryptBlocks(decrypted, decryptBytes)
+	decrypted = pkcs5UnPadding(decrypted)
+	return string(decrypted), nil
+}
+
+func pkcs5Padding(cipherText []byte, blockSize int) []byte {
+	padding := blockSize - len(cipherText)%blockSize
+	padText := bytes.Repeat([]byte{byte(padding)}, padding)
+	return append(cipherText, padText...)
+}
+
+func pkcs5UnPadding(decrypted []byte) []byte {
+	length := len(decrypted)
+	unPadding := int(decrypted[length-1])
+	return decrypted[:(length - unPadding)]
+}
diff --git a/version.go b/version.go
new file mode 100644
index 0000000..4542fc0
--- /dev/null
+++ b/version.go
@@ -0,0 +1,3 @@
+package goaes
+
+const Version = "1.0.0"
diff --git a/version_test.go b/version_test.go
new file mode 100644
index 0000000..381893d
--- /dev/null
+++ b/version_test.go
@@ -0,0 +1,7 @@
+package goaes
+
+import "testing"
+
+func TestVersion(t *testing.T) {
+	t.Log(Version)
+}