- Foxtable(狐表) (http://foxtable.net/bbs/index.asp)
-- 专家坐堂 (http://foxtable.net/bbs/list.asp?boardid=2)
---- 求助net代码转换成狐表代码 (http://foxtable.net/bbs/dispbbs.asp?boardid=2&id=184524)
-- 发布时间：2022/12/12 14:44:00
-- 求助net代码转换成狐表代码
麻烦有点蓝老师把以下代码转换成狐表代码一下
public class AesGcm
{
private static string ALGORITHM = "AES/GCM/NoPadding";
private static int TAG_LENGTH_BIT = 128;
private static int NONCE_LENGTH_BYTE = 12;
private static string AES_KEY = "yourkeyhere";
public static string AesGcmDecrypt(string associatedData, string nonce, string ciphertext)
{
GcmBlockCipher gcmBlockCipher = new GcmBlockCipher(new AesEngine());
AeadParameters aeadParameters = new AeadParameters(
new KeyParameter(Encoding.UTF8.GetBytes(AES_KEY)),
128,
Encoding.UTF8.GetBytes(nonce),
Encoding.UTF8.GetBytes(associatedData));
gcmBlockCipher.Init(false, aeadParameters);
byte[] data = Convert.FromBase64String(ciphertext);
byte[] plaintext = new byte[gcmBlockCipher.GetOutputSize(data.Length)];
int length = gcmBlockCipher.ProcessBytes(data, 0, data.Length, plaintext, 0);
gcmBlockCipher.DoFinal(plaintext, length);
return Encoding.UTF8.GetString(plaintext);
}
}
[此贴子已经被作者于2022/12/12 14:44:51编辑过]
-- 发布时间：2022/12/12 14:47:00
--
自行转换：https://converter.telerik.com/
-- 发布时间：2022/12/12 14:55:00
--
老师这段代码要怎么修改才可以在命令窗口测试啊
返回的值
{"id":"e8ba42b9-8043-5a62-839b-e063ad17a75b","create_time":"2022-12-12T13:56:46+08:00","resource_type":"encrypt-resource","event_type":"TRANSACTION.SUCCESS","summary":"支付成功","resource":{"original_type":"transaction","algorithm":"AEAD_AES_256_GCM","ciphertext":"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","associated_data":"transaction","nonce":"d2lO8NoGbAbF"}}
Public Class AesGcm
Private Shared ALGORITHM As String = "AES/GCM/NoPadding"
Private Shared TAG_LENGTH_BIT As Integer = 128
Private Shared NONCE_LENGTH_BYTE As Integer = 12
Private Shared AES_KEY As String = "yourkeyhere"
Public Shared Function AesGcmDecrypt(ByVal associatedData As String, ByVal nonce As String, ByVal ciphertext As String) As String
Dim gcmBlockCipher As GcmBlockCipher = New GcmBlockCipher(New AesEngine())
Dim aeadParameters As AeadParameters = New AeadParameters(New KeyParameter(Encoding.UTF8.GetBytes(AES_KEY)), 128, Encoding.UTF8.GetBytes(nonce), Encoding.UTF8.GetBytes(associatedData))
gcmBlockCipher.Init(False, aeadParameters)
Dim data As Byte() = Convert.FromBase64String(ciphertext)
Dim plaintext As Byte() = New Byte(gcmBlockCipher.GetOutputSize(data.Length) - 1) {}
Dim length As Integer = gcmBlockCipher.ProcessBytes(data, 0, data.Length, plaintext, 0)
gcmBlockCipher.DoFinal(plaintext, length)
Return Encoding.UTF8.GetString(plaintext)
End Function
End Class
[此贴子已经被作者于2022/12/12 14:56:06编辑过]
-- 发布时间：2022/12/12 15:37:00
--
转换的代码放到全局代码，但是上面给的代码是不完整的，缺少命名空间，我在微软网站都搜索不到GcmBlockCipher这些类型的用法。咨询一下对方客服吧
-- 发布时间：2022/12/12 19:42:00
--
再麻烦老师看一下这段代码放到狐表里要怎么改 ,老师请看一下是不是要引用这两个DLL文件
| 下载信息 [文件大小： 下载次数： ] | |
 点击浏览该文件:dll.zip |
官方的文档这里有个坑，如果你直接用是会报错的
所以需要引用一个包
此主题相关图片如下：微信截图_20221212194212.png
Imports Org.BouncyCastle.Crypto.Engines
Imports Org.BouncyCastle.Crypto.Modes
Imports Org.BouncyCastle.Crypto.Parameters
Imports System
Imports System.Collections.Generic
Imports System.Linq
Imports System.Text
Imports System.Threading.Tasks
Namespace test1.WeiXinPay.Tools
Public Class AesGcmHelper
Private Shared ALGORITHM As String = "AES/GCM/NoPadding"
Private Shared TAG_LENGTH_BIT As Integer = 128
Private Shared NONCE_LENGTH_BYTE As Integer = 12
Private Shared AES_KEY As String = "12345678901234567890qwertyuiopas"
Public Shared Function AesGcmDecrypt(ByVal associatedData As String, ByVal nonce As String, ByVal ciphertext As String, ByVal APIV3Key As String) As String
Dim gcmBlockCipher As GcmBlockCipher = New GcmBlockCipher(New AesEngine())
Dim aeadParameters As AeadParameters = New AeadParameters(New KeyParameter(Encoding.UTF8.GetBytes(APIV3Key)), 128, Encoding.UTF8.GetBytes(nonce), Encoding.UTF8.GetBytes(associatedData))
gcmBlockCipher.Init(False, aeadParameters)
Dim data As Byte() = Convert.FromBase64String(ciphertext)
Dim plaintext As Byte() = New Byte(gcmBlockCipher.GetOutputSize(data.Length) - 1) {}
Dim length As Integer = gcmBlockCipher.ProcessBytes(data, 0, data.Length, plaintext, 0)
gcmBlockCipher.DoFinal(plaintext, length)
Return Encoding.UTF8.GetString(plaintext)
End Function
End Class
End Namespace
[此贴子已经被作者于2022/12/12 19:48:29编辑过]
-- 发布时间：2022/12/12 20:20:00
--
把BouncyCastle.Crypto.dll复制到Foxtable安装目录，然后添加引用
把Namespace test1.WeiXinPay.Tools及上面的代码去掉，把Public Class AesGcmHelper以及里面的代码补全命名空间，比如：Dim gcmBlockCipher As Org.BouncyCastle.Crypto.Modes.GcmBlockCipher = New Org.BouncyCastle.Crypto.Modes.GcmBlockCipher(New AesEngine())
然后放到全局代码。命令窗口调用参考：
dim 结果 as string = AesGcmHelper.AesGcmDecrypt(传入需要的参数)
msgbox(结果)
-- 发布时间：2022/12/12 20:38:00
--
老师，这个报错了，上面的三个我都试了一下
Org.BouncyCastle.Crypto.Engines
Org.BouncyCastle.Crypto.Modes
Org.BouncyCastle.Crypto.Parameters
此主题相关图片如下：ddd.png
[此贴子已经被作者于2022/12/12 20:39:16编辑过]
-- 发布时间：2022/12/12 21:45:00
--
AesGcmHelper是自己定义的类名称，不需要加什么命名空间。用到别人的第三方的类型才需要加命名空间
[此贴子已经被作者于2022/12/12 21:46:16编辑过]
-- 发布时间：2022/12/13 9:44:00
--
老师我按照你说的方法，还是不可以
此主题相关图片如下：112233.png
-- 发布时间：2022/12/13 9:53:00
--
BouncyCastle.Crypto.dll这个dll要下载for .net4.0的版本，不要使用netstandard的版本