Init Project

internal/utils/crypto.go

@@ -0,0 +1,19 @@
+package utils
+
+import "crypto/aes"
+
+func PKCS7UnPadding(encrypt []byte) []byte {
+	length := len(encrypt)
+	unPadding := int(encrypt[length-1])
+	return encrypt[:(length - unPadding)]
+}
+
+func DecryptAes128Ecb(data, key []byte) []byte {
+	cipher, _ := aes.NewCipher(key)
+	decrypted := make([]byte, len(data))
+	size := 16
+	for bs, be := 0, size; bs < len(data); bs, be = bs+size, be+size {
+		cipher.Decrypt(decrypted[bs:be], data[bs:be])
+	}
+	return decrypted
+}