gcm-stream - npm Package Compare versions

Comparing version 1.0.1 to 1.1.0

package.json

 {
   "name": "gcm-stream",
-  "version": "1.0.1",
+  "version": "1.1.0",
   "description": "",
@@ -5,0 +5,0 @@ "main": "index.js",

README.md

@@ -32,2 +32,3 @@ # aes-gcm
 | iv | 初始化向量| 否，如果不传内部会随机, 可以通过 encrypt.getIV |
+| withoutIV | 是否自动将 IV 添加到密文前 | 否 |
 | ivLength | 初始化向量随机的长度, 默认 12 bytes, 当不传递 iv 时用于自动生成 iv| 否|
@@ -37,3 +38,3 @@ | cipherGCMTypes | gcm 加密类型| 否,默认 aes-256-gcm|
 
-## const encrypt = Encrypt(options)
+## const decrypt = Decrypt(options)
 
@@ -49,5 +50,4 @@ 支持的参数
 
- 注意: 加密解密的 key 要一样, iv 长度和 mac 的长度也很重要，如果约定不是使用 iv 12bytes、macLength 16bytes 的情况下，需要主动的声明长度.
+注意: 加密解密的 key 要一样, iv 长度和 mac 的长度也很重要，如果约定不是使用 iv 12bytes、macLength 16bytes 的情况下，需要主动的声明长度.
 
-
 # 背景
@@ -54,0 +54,0 @@

src/encrypt.d.ts

@@ -7,2 +7,6 @@ /// <reference types="node" />
 interface Options {
+    /**
+     * @description 不自动带上 IV 头
+     */
+    withoutIV?: boolean;
     macLength?: number;
@@ -27,2 +31,3 @@ /**
     private ivLength;
+    private withoutIV;
     private iv;
@@ -29,0 +34,0 @@ private key;

src/encrypt.js

@@ -13,5 +13,6 @@ "use strict";
         this.ivLength = 12;
+        this.withoutIV = false;
         this.isFirst = true;
         this.cipherGCMTypes = 'aes-256-gcm';
-        const { macLength, ivLength, cipherGCMTypes, key, iv } = options;
+        const { macLength, ivLength, cipherGCMTypes, key, iv, withoutIV } = options;
         if (macLength) {
@@ -28,2 +29,3 @@ this.macLength = macLength;
         this.iv = this.create(this.ivLength, iv);
+        this.withoutIV = Boolean(withoutIV);
         this.cipher = (0, crypto_1.createCipheriv)(this.cipherGCMTypes, this.key, this.iv, {
@@ -35,3 +37,6 @@ authTagLength: this.macLength,
         if (this.isFirst) {
-            this.push(this.getIV());
+            if (!this.withoutIV) {
+                // 现在允许不自动在头部带上 IV 的形式了
+                this.push(this.getIV());
+            }
             this.isFirst = false;
@@ -38,0 +43,0 @@ }

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Improved metrics

Total package byte prevSize

22829

increased by2.34%

Lines of code

329

increased by3.13%

No dependency changes