Fixed bytes issue in enc...

client.go

@@ -15,7 +15,6 @@ import (
     "flag"
     "os"
     "log"
-    "bytes"
     "io/ioutil"
     "gopkg.in/yaml.v2"
 )
@@ -72,20 +71,11 @@ func chEnc(p string)(string) {
         log.Fatalf("Cha Nonce Error")
         return ""
     }    
-    // Encode with gob first
-    var buf bytes.Buffer
-    tempEnc := gob.NewEncoder(&buf)
-    if err := tempEnc.Encode(p); err != nil {
-        log.Fatalf("gob encode first error")
-        return ""
-    }
-        
     // Encrypt the encoded data
-    encrypted := aead.Seal(nil, nonce, buf.Bytes(), nil)
+    encrypted := aead.Seal(nil, nonce, []byte(p), nil)
         
     // Send nonce + encrypted data
-    fullMessage := append(nonce, encrypted...)
-    
+    fullMessage := append(nonce, encrypted...)    
     encoded := base64.StdEncoding.EncodeToString(fullMessage)
     return encoded  
 }

server.go

@@ -16,7 +16,6 @@ import (
     "net"
     "sync"
     "time"
-    "bytes"
     "errors"
     "flag"
     "os"
@@ -215,20 +214,22 @@ func checkPassword(hash, pw string) error {
     return bcrypt.CompareHashAndPassword([]byte(hash), []byte(pw))
 }
 
-func encrypt(text string) ([]byte, error) {
+func encrypt(text string) (string, error) {
     block, err := aes.NewCipher(key)
     if err != nil {
-        return nil, err
+        return "", err
     }
     gcm, err := cipher.NewGCM(block)
     if err != nil {
-        return nil, err
+        return "", err
     }
     nonce := make([]byte, gcm.NonceSize())
-    return gcm.Seal(nonce, nonce, []byte(text), nil), nil
+    fullMessage := gcm.Seal(nonce, nonce, []byte(text), nil)
+    encoded := base64.StdEncoding.EncodeToString(fullMessage)
+    return encoded, nil
 }
 
-func decrypt(data []byte) (string, error) {
+func decrypt(data string) (string, error) {
     block, err := aes.NewCipher(key)
     if err != nil {
         return "", err
@@ -237,8 +238,15 @@ func decrypt(data []byte) (string, error) {
     if err != nil {
         return "", err
     }
+    
+    // Decoding from base64
+	decoded, err := base64.StdEncoding.DecodeString(data)
+	if err != nil {
+		return "", err
+	}
+    
     nonceSize := gcm.NonceSize()
-    nonce, ciphertext := data[:nonceSize], data[nonceSize:]
+    nonce, ciphertext := decoded[:nonceSize], decoded[nonceSize:]
     plaintext, err := gcm.Open(nil, nonce, ciphertext, nil)
     if err != nil {
         return "", err
@@ -264,15 +272,9 @@ func chEnc(pwd string)(string, error) {
     if _, err := rand.Read(nonce); err != nil {
         return "", err
     }    
-    // Encode with gob first
-    var buf bytes.Buffer
-    tempEnc := gob.NewEncoder(&buf)
-    if err := tempEnc.Encode(pwd); err != nil {
-        return "", err
-    }
         
     // Encrypt the encoded data
-    encrypted := aead.Seal(nil, nonce, buf.Bytes(), nil)
+    encrypted := aead.Seal(nil, nonce, []byte(pwd), nil)
         
     // Send nonce + encrypted data
     fullMessage := append(nonce, encrypted...)
@@ -287,7 +289,7 @@ func chDec(eText string)(string) {
     }
     
     // Decoding from base64
-	decoded, err := base64.StdEncoding.DecodeString(eText)
+	encryptedMsg, err := base64.StdEncoding.DecodeString(eText)
 	if err != nil {
 		log.Fatalf("Error: Base64 decode")
 	}
@@ -298,8 +300,6 @@ func chDec(eText string)(string) {
 		log.Fatalf("Error: Cha20 key")
 	}
 
-    encryptedMsg := decoded
-
 	// Decrypt: Split nonce and ciphertext
 	decryptedNonce := encryptedMsg[:aead.NonceSize()]
 	decryptedCiphertext := encryptedMsg[aead.NonceSize():]
@@ -406,7 +406,7 @@ func handleConnection(conn net.Conn, db *sql.DB) {
         enc.Encode(Response{Message: "Password stored successfully", Enc: ""})
 
     case "get":
-        var encrypted []byte
+        var encrypted string
         err := db.QueryRow("SELECT password FROM accounts WHERE user = ? AND site = ?", username, site).Scan(&encrypted)
         if err == sql.ErrNoRows {
             enc.Encode(Response{Message: "Site not found", Enc: ""})