From 191bfcc1111c0250d819eda1e90c2d514e8afc4a Mon Sep 17 00:00:00 2001
From: Johan de Klerk <johan@shiplogic.com>
Date: Mon, 17 Apr 2023 09:26:37 +0200
Subject: [PATCH] Generate hash from object function
---
encryption/encryption.go | 19 +++++++++++++++++++
1 file changed, 19 insertions(+)
diff --git a/encryption/encryption.go b/encryption/encryption.go
index cda03b4..2a0dfc0 100644
--- a/encryption/encryption.go
+++ b/encryption/encryption.go
@@ -1,6 +1,7 @@
package encryption
import (
+ "bytes"
"crypto/aes"
"crypto/cipher"
"crypto/hmac"
@@ -21,6 +22,24 @@ func Hash(input string, key string) string {
return base64.StdEncoding.EncodeToString(h.Sum(nil))
}
+// GenerateHashFromObject using HMAC with SHA-256
+func GenerateHashFromObject(obejct any, secret string) (string, error) {
+ // Base64 Encode body
+ var buf bytes.Buffer
+ encoder := base64.NewEncoder(base64.StdEncoding, &buf)
+ defer encoder.Close()
+
+ err := json.NewEncoder(encoder).Encode(obejct)
+ if err != nil {
+ return "", err
+ }
+ encodedBody := buf.String()
+
+ // Sign encoded body with secret
+ hashedObject := Hash(encodedBody, secret)
+ return hashedObject, nil
+}
+
func Md5HashString(bytesToHash []byte) string {
hash := md5.Sum(bytesToHash)
hashString := fmt.Sprintf("%X", hash)
--
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