first commit

util/crypto.go

@@ -0,0 +1,71 @@
+package util
+
+import (
+	"bytes"
+	"compress/gzip"
+	"crypto/md5"
+	"encoding/binary"
+	"encoding/hex"
+	"fmt"
+	"github.com/go-think/openssl"
+	"io"
+)
+
+func AesCBCEncrypt(src, key, iv []byte, padding string) ([]byte, error) {
+	data, err := openssl.AesCBCEncrypt(src, key, iv, padding)
+	if err != nil {
+		return nil, err
+	}
+	return []byte(hex.EncodeToString(data)), nil
+}
+
+func AesCBCDecrypt(src, key, iv []byte, padding string) ([]byte, error) {
+	data, err := hex.DecodeString(string(src))
+	if err != nil {
+		return nil, err
+	}
+	return openssl.AesCBCDecrypt(data, key, iv, padding)
+
+}
+func Md5(text string) string {
+	hashMd5 := md5.New()
+	io.WriteString(hashMd5, text)
+	return fmt.Sprintf("%x", hashMd5.Sum(nil))
+}
+
+func Zip(data []byte) ([]byte, error) {
+
+	var b bytes.Buffer
+	gz, _ := gzip.NewWriterLevel(&b, 9)
+	if _, err := gz.Write([]byte(data)); err != nil {
+		return nil, err
+	}
+	if err := gz.Flush(); err != nil {
+		return nil, err
+	}
+	if err := gz.Close(); err != nil {
+		return nil, err
+	}
+	return b.Bytes(), nil
+}
+
+func UnZip(data []byte) ([]byte, error) {
+	b := new(bytes.Buffer)
+	binary.Write(b, binary.LittleEndian, data)
+	r, err := gzip.NewReader(b)
+	if err != nil {
+		return nil, err
+	}
+	defer r.Close()
+
+	unzipData, err := io.ReadAll(r)
+	if err != nil {
+		return nil, err
+	}
+
+	return unzipData, nil
+}
+
+func Password(pwd string, pwdCode string) string {
+	return Md5(pwd + pwdCode)
+}