1 Star 9 Fork 8

HarmonyOS_Samples/CryptoFramework

加入 Gitee
与超过 1200万 开发者一起发现、参与优秀开源项目,私有仓库也完全免费 :)
免费加入
克隆/下载
贡献代码
同步代码
取消
提示: 由于 Git 不支持空文件夾,创建文件夹后会生成空的 .keep 文件
Loading...
README
Apache-2.0

基于cryptoFramework实现文本文件加解密

介绍

本示例通过cryptoFramework接口实现文本加解密,主要用到2种加密算法,RSA加解密、AES加解密。帮助开发者掌握应用侧使用Cipher处理加解密,处理自己业务需要文本加解密的场景,对文件签名验签(本质也是加解密)的场景。

实现场景如下:

1)软件需要加密存储本地文本文件,需要调用加解密算法库框架选择密钥文本文件,对本地文本文件进行加密,其中密钥文本文件可由加解密算法库生成。

2)软件需要解密存储本地文本文件,需要调用加解密算法库框架选择密钥文本文件,对本地文本文件进行解密,其中密钥文本文件可由加解密算法库生成。

3)软件需要对存储本地文本文件签名,调用加解密算法库框架选择密钥文本文件,对本地文本文件进行完整性签名,其中密钥文本文件可由加解密算法库生成。

4)软件需要验证存储本地文本文件的签名完整性,需要调用加解密算法库框架选择密钥文本文件与签名文件,对文件进行验签,其中密钥文本文件可由加解密算法库生成。

效果预览

加密页面 解密页面 签名页面 验签界面

使用说明

1.点击主页面tab栏的加密,在加密界面点击打开文件,通过文件选择器选择文本文件,选择完毕自动返回加密界面, 其内容显示在文件内容文本框中, 点击选择密钥,选择密钥文件,如果没有密钥文件,可以通过在加密界面点击随机生成AES密钥,生成并通过文件选择器保存密钥文件。 选择完文本文件和密钥文件后,点击加密按钮,完成加密,并通过文件选择器保存密文文件。 下方加密内容文本框中显示加密后的消息内容。

2.点击主页面tab栏的解密,在解密界面点击打开文件,通过文件选择器选择文本文件,选择完毕自动返回解密界面, 其内容显示在文件内容文本框中, 点击选择密钥,选择和加密相同的密钥文件。 选择完文本文件和密钥文件后,点击解密按钮,完成解密,并通过文件选择器保存明文文件。 下方解密内容文本框中显示解密后的消息内容。

3.点击主页面tab栏的签名,在签名界面点击打开文件,通过文件选择器选择文本文件,选择完毕自动返回签名界面, 其内容显示在文件内容文本框中, 点击选择密钥,选择密钥文件,如果没有密钥文件,可以通过在签名界面点击随机生成RSA密钥,生成并通过文件选择器保存密钥文件,注意RSA密钥生成耗时较长。 选择完文本文件和密钥文件后,点击签名按钮,完成完整性签名,并通过文件选择器保存签名文件。

4.点击主页面tab栏的验签,在验签界面点击打开文件,通过文件选择器选择文本文件,选择完毕自动返回验签界面, 其内容显示在文件内容文本框中, 点击选择密钥,选择和签名一致的密钥文件。点击选择签名文件,通过文件选择器选择签名时保存的签名文件, 选择完文本文件、密钥文件和签名文件后,点击验签按钮,完成验签。

工程目录

├──entry/src/main/ets                             // 代码区
│  ├──cryptoframework
│  │  └──CryptoOperation.ts                       // 封装加解密算法库相关算法能力
│  ├──entryability
│  │  └──EntryAbility.ets       
│  ├──pages
│  │  └──Index.ets                                // 主页界面
│  ├──tab
│  │  ├──Decrypt.ets                              // 解密tab界面
│  │  ├──Encrpyt.ets                              // 加密tab界面
│  │  ├──Sign.ets                                 // 签名tab界面
│  │  └──Verify.ets                               // 验签tab界面
│  ├──textfilemanager
│  │  └──TextFileManager.ts                       // 封装文件读写相关能力
│  └──util
│     └──Logger.ts                                // 日志文件
└──entry/src/main/resources                       // 应用资源目录

具体实现

  • 进行对文本文件进行加解密、签名验签的功能接口封装在CryptoOperation中,源码参考:CryptoOperation.ts

  • 对文本文件加密:在Encrypt.ets 文件中依次点击打开文件、选择密钥,通过filePicker选择明文文本文件和密钥文件,点击加密按钮,调用加密函数实现对文本内容进行加密,并将密文文件通过filePicker保存。 需要生成密钥文本文件时,可以点击随机生成AES密钥,通过调用cryptoFramework.symKeyGenerator生成用于加密的AES密钥,并通过filePicker保存密钥文本文件。 对消息加密的过程中采用cryptoFramework.Cipher完成加密操作。

  • 对文本文件解密:在Decrypt.ets 文件中依次点击打开文件、选择密钥,通过filePicker选择密文文本文件和密钥文件,点击解密按钮,调用解密函数实现对文本内容进行解密,并将明文文件通过filePicker保存。 对消息解密的过程中采用cryptoFramework.Cipher完成解密操作。

  • 对文本文件签名:在Sign.ets 文件中依次点击打开文件、选择密钥,通过filePicker选择待签名文本文件和密钥文件,点击签名按钮,调用签名函数实现对文本内容进行加密,并将签名文件通过filePicker保存。 需要生成密钥文本文件时,可以点击随机生成RSA密钥,通过调用cryptoFramework.asyKeyGenerator生成用于签名的RSA密钥,并通过filePicker保存密钥文本文件。 对消息签名的过程中采用cryptoFramework.Sign完成加密操作。

  • 对文本文件验签:在Verify.ets 文件中依次点击打开文件、选择密钥、选择签名文件,通过filePicker选择密文文本文件、密钥文件和签名文件,点击验签按钮,调用验签函数实现对文本内容进行验签,并显示验签结果。 对消息验签的过程中采用cryptoFramework.Verify完成验签操作。

相关权限

不涉及。

依赖

  • filePicker文件选择器@ohos.file.picker

  • 文件管理@ohos.file.fs

约束与限制

1.本示例仅支持标准系统上运行,支持设备:华为手机。

2.HarmonyOS系统:HarmonyOS NEXT Developer Beta1及以上。

3.DevEco Studio版本:DevEco Studio NEXT Developer Beta1及以上。

4.HarmonyOS SDK版本:HarmonyOS NEXT Developer Beta1 SDK及以上。

5.本示例所选择文件,用filePicker文件选择器保存的文件,比如新增的密钥,能够实时更新,如直接推送至文件夹,需要重启后刷新显示。

6.本示例所选择文本文件内容当前只支持英文字符,作为演示,能成功使用的文本长度不超过8000字节。

Copyright (c) 2023 Huawei Device Co., Ltd. All rights reserved. Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License. Apache License, Version 2.0 TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION 1. Definitions. "License" shall mean the terms and conditions for use, reproduction, and distribution as defined by Sections 1 through 9 of this document. "Licensor" shall mean the copyright owner or entity authorized by the copyright owner that is granting the License. "Legal Entity" shall mean the union of the acting entity and all other entities that control, are controlled by, or are under common control with that entity. For the purposes of this definition, "control" means (i) the power, direct or indirect, to cause the direction or management of such entity, whether by contract or otherwise, or (ii) ownership of fifty percent (50%) or more of the outstanding shares, or (iii) beneficial ownership of such entity. "You" (or "Your") shall mean an individual or Legal Entity exercising permissions granted by this License. "Source" form shall mean the preferred form for making modifications, including but not limited to software source code, documentation source, and configuration files. "Object" form shall mean any form resulting from mechanical transformation or translation of a Source form, including but not limited to compiled object code, generated documentation, and conversions to other media types. "Work" shall mean the work of authorship, whether in Source or Object form, made available under the License, as indicated by a copyright notice that is included in or attached to the work (an example is provided in the Appendix below). "Derivative Works" shall mean any work, whether in Source or Object form, that is based on (or derived from) the Work and for which the editorial revisions, annotations, elaborations, or other modifications represent, as a whole, an original work of authorship. For the purposes of this License, Derivative Works shall not include works that remain separable from, or merely link (or bind by name) to the interfaces of, the Work and Derivative Works thereof. "Contribution" shall mean any work of authorship, including the original version of the Work and any modifications or additions to that Work or Derivative Works thereof, that is intentionally submitted to Licensor for inclusion in the Work by the copyright owner or by an individual or Legal Entity authorized to submit on behalf of the copyright owner. For the purposes of this definition, "submitted" means any form of electronic, verbal, or written communication sent to the Licensor or its representatives, including but not limited to communication on electronic mailing lists, source code control systems, and issue tracking systems that are managed by, or on behalf of, the Licensor for the purpose of discussing and improving the Work, but excluding communication that is conspicuously marked or otherwise designated in writing by the copyright owner as "Not a Contribution." "Contributor" shall mean Licensor and any individual or Legal Entity on behalf of whom a Contribution has been received by Licensor and subsequently incorporated within the Work. 2. Grant of Copyright License. Subject to the terms and conditions of this License, each Contributor hereby grants to You a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare Derivative Works of, publicly display, publicly perform, sublicense, and distribute the Work and such Derivative Works in Source or Object form. 3. Grant of Patent License. Subject to the terms and conditions of this License, each Contributor hereby grants to You a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable (except as stated in this section) patent license to make, have made, use, offer to sell, sell, import, and otherwise transfer the Work, where such license applies only to those patent claims licensable by such Contributor that are necessarily infringed by their Contribution(s) alone or by combination of their Contribution(s) with the Work to which such Contribution(s) was submitted. If You institute patent litigation against any entity (including a cross-claim or counterclaim in a lawsuit) alleging that the Work or a Contribution incorporated within the Work constitutes direct or contributory patent infringement, then any patent licenses granted to You under this License for that Work shall terminate as of the date such litigation is filed. 4. Redistribution. You may reproduce and distribute copies of the Work or Derivative Works thereof in any medium, with or without modifications, and in Source or Object form, provided that You meet the following conditions: 1.You must give any other recipients of the Work or Derivative Works a copy of this License; and 2.You must cause any modified files to carry prominent notices stating that You changed the files; and 3.You must retain, in the Source form of any Derivative Works that You distribute, all copyright, patent, trademark, and attribution notices from the Source form of the Work, excluding those notices that do not pertain to any part of the Derivative Works; and 4.If the Work includes a "NOTICE" text file as part of its distribution, then any Derivative Works that You distribute must include a readable copy of the attribution notices contained within such NOTICE file, excluding those notices that do not pertain to any part of the Derivative Works, in at least one of the following places: within a NOTICE text file distributed as part of the Derivative Works; within the Source form or documentation, if provided along with the Derivative Works; or, within a display generated by the Derivative Works, if and wherever such third-party notices normally appear. The contents of the NOTICE file are for informational purposes only and do not modify the License. You may add Your own attribution notices within Derivative Works that You distribute, alongside or as an addendum to the NOTICE text from the Work, provided that such additional attribution notices cannot be construed as modifying the License. You may add Your own copyright statement to Your modifications and may provide additional or different license terms and conditions for use, reproduction, or distribution of Your modifications, or for any such Derivative Works as a whole, provided Your use, reproduction, and distribution of the Work otherwise complies with the conditions stated in this License. 5. Submission of Contributions. Unless You explicitly state otherwise, any Contribution intentionally submitted for inclusion in the Work by You to the Licensor shall be under the terms and conditions of this License, without any additional terms or conditions. Notwithstanding the above, nothing herein shall supersede or modify the terms of any separate license agreement you may have executed with Licensor regarding such Contributions. 6. Trademarks. This License does not grant permission to use the trade names, trademarks, service marks, or product names of the Licensor, except as required for reasonable and customary use in describing the origin of the Work and reproducing the content of the NOTICE file. 7. Disclaimer of Warranty. Unless required by applicable law or agreed to in writing, Licensor provides the Work (and each Contributor provides its Contributions) on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied, including, without limitation, any warranties or conditions of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A PARTICULAR PURPOSE. You are solely responsible for determining the appropriateness of using or redistributing the Work and assume any risks associated with Your exercise of permissions under this License. 8. Limitation of Liability. In no event and under no legal theory, whether in tort (including negligence), contract, or otherwise, unless required by applicable law (such as deliberate and grossly negligent acts) or agreed to in writing, shall any Contributor be liable to You for damages, including any direct, indirect, special, incidental, or consequential damages of any character arising as a result of this License or out of the use or inability to use the Work (including but not limited to damages for loss of goodwill, work stoppage, computer failure or malfunction, or any and all other commercial damages or losses), even if such Contributor has been advised of the possibility of such damages. 9. Accepting Warranty or Additional Liability. While redistributing the Work or Derivative Works thereof, You may choose to offer, and charge a fee for, acceptance of support, warranty, indemnity, or other liability obligations and/or rights consistent with this License. However, in accepting such obligations, You may act only on Your own behalf and on Your sole responsibility, not on behalf of any other Contributor, and only if You agree to indemnify, defend, and hold each Contributor harmless for any liability incurred by, or claims asserted against, such Contributor by reason of your accepting any such warranty or additional liability. END OF TERMS AND CONDITIONS

简介

本示例使用@ohos.security.cryptoFramework相关接口实现了对文本文件的加解密、签名验签操作。 展开 收起
README
Apache-2.0
取消

发行版

暂无发行版

贡献者

全部

近期动态

不能加载更多了
马建仓 AI 助手
尝试更多
代码解读
代码找茬
代码优化
1
https://gitee.com/harmonyos_samples/crypto-framework.git
git@gitee.com:harmonyos_samples/crypto-framework.git
harmonyos_samples
crypto-framework
CryptoFramework
master

搜索帮助