奇怪的“InvalidCast” Metro AES加密中的例外情况

问题描述

如上图所示：

变量" key"是CryptographicKey类型;

变量" clearTextBuffer"是IBuffer类型;

变量"iv"是IBuffer类型;

variable "key" is of type CryptographicKey;
variable "clearTextBuffer" is of type IBuffer;
variable "iv" is of type IBuffer;

方法CryptographicEngine.Encrypt（CryptographicKey，IBuffer，IBuffer）采用正确类型的参数;

Method CryptographicEngine.Encrypt(CryptographicKey, IBuffer, IBuffer) takes the right types of arguments;

但是当代码运行时在这一行中，"InvalidCastException"即使根本没有投射也被抛出。

But when the code runs to this line, an "InvalidCastException" was thrown even if there's no casting at all.

我无法弄清楚为什么这个问题，我错过了什么？

I can't figure out why about this issue, what is it I have missed?

非常感谢帮助。

推荐答案

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Alejandro Campos Magencio - Microsoft Escalation Engineer - 论坛版主

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Alejandro Campos Magencio - Microsoft Escalation Engineer - Forum Moderator
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