fix(加密解密): 修正加密用户名处理逻辑

assets/webui/ofdgo.js

@@ -4463,8 +4463,7 @@ function updateEncryptionType() {
 	el.encryptionCertificatesRow.hidden = !certificates;
 	el.encryptionPassword.required = el.encryptionConfirm.required = password;
 	el.encryptionCertificates.required = certificates;
-	const user = mode === "password" && encryptionMode() === mode ? state.doc.encryption.users?.[0] || "" : "";
-	el.encryptionUser.value = user === "User" ? "" : user;
+	el.encryptionUser.value = mode === "password" && encryptionMode() === mode ? state.doc.encryption.users?.[0] || "" : "";
 	el.encryptionPassword.value = el.encryptionConfirm.value = "";
 	el.encryptionCertificates.value = "";
 	el.encryptionStatus.textContent = mode === "keep" && state.doc?.encryption?.policyRequired ? "请重新选择加密方式" : "";

ofdgo_crypto.go

@@ -65,7 +65,7 @@ type EncryptionRecipient struct {
 }
 
 // EncryptionOptions 设置GM/T0099加密，口令与证书方案二选一
-// UserName标记口令接收者，不参与口令派生，留空使用User
+// UserName标记口令接收者，不参与口令派生，留空不写入用户名
 // 口令方案应使用足够长的随机口令；标准密钥派生不提供慢速口令哈希
 type EncryptionOptions struct {
 	Password   []byte

ofdgo_crypto_editor.go

@@ -40,11 +40,7 @@ func (e *Editor) SetEncryption(options *EncryptionOptions) error {
 	}
 	info := EncryptionInfo{Encrypted: true, Method: "1.1.1", Layers: 1}
 	if len(options.Password) != 0 {
-		name := options.UserName
-		if name == "" {
-			name = "User"
-		}
-		info.Users = []string{name}
+		info.Users = []string{options.UserName}
 	} else {
 		info.Method = "1.1.2"
 		for _, recipient := range options.Recipients {

ofdgo_crypto_package.go

@@ -67,7 +67,7 @@ type encryptionParams struct {
 
 // encryptionUser 保存单个接收者的公开信息及包装密钥
 type encryptionUser struct {
-	Name        string `xml:"UserName,attr"`
+	Name        string `xml:"UserName,attr,omitempty"`
 	Role        string `xml:"UserType,attr,omitempty"`
 	Certificate string `xml:"UserCert,omitempty"`
 	Key         string `xml:"EncryptedWK"`
@@ -453,11 +453,7 @@ func encryptPackageParts(parts map[string][]byte, options EncryptionOptions, pro
 		if err != nil {
 			return nil, err
 		}
-		name := options.UserName
-		if name == "" {
-			name = "User"
-		}
-		seed.Users = []encryptionUser{{Name: name, Role: options.UserType, Key: base64.StdEncoding.EncodeToString(wrapped), IV: base64.StdEncoding.EncodeToString(iv)}}
+		seed.Users = []encryptionUser{{Name: options.UserName, Role: options.UserType, Key: base64.StdEncoding.EncodeToString(wrapped), IV: base64.StdEncoding.EncodeToString(iv)}}
 	} else {
 		seed.Method = "1.1.2"
 		for _, recipient := range options.Recipients {