我要评论rsacryptoserviceprovider rsa = new rsacryptoserviceprovider();
private void btencoding_click(object sender, eventargs e)
{
if (mbox.text == "")
{
messagebox.show("加密文字信息不能为空！");
return;
}
if (publickey.text == "")
{
messagebox.show("请生成公钥！");
return;
}
try
{
string pubkey = publickey.text;
byte[] mw = asciiencoding.ascii.getbytes(mbox.text);
rsacryptoserviceprovider crypt = new rsacryptoserviceprovider();
crypt.fromxmlstring(pubkey);
mw = crypt.encrypt(mw, false);
string encryttext = convert.tobase64string(mw);//加密后的结果怎样处理解决显示乱码问题
cbox.text = encryttext;
}
catch
{
messagebox.show("请检查是否打开公匙或者公匙是否损坏！");
}
}
private void btdecoding_click(object sender, eventargs e)
{
if (cbox.text == "")
{
messagebox.show("请生成密钥！");
return;
}
try
{
rsacryptoserviceprovider crypt = new rsacryptoserviceprovider();
byte[] bytes = convert.frombase64string(cbox.text);//从密文框中取出的字符串正确处理才能解密
string prtkey = privatekey.text;
crypt.fromxmlstring(prtkey);
byte[] decryptbyte = crypt.decrypt(bytes, false);
string decrypttext = encoding.default.getstring(decryptbyte);
mbox.text = decrypttext;
}
catch (cryptographicexception ex)
{
//messagebox.show("请检查是否打开私匙或者私匙是否损坏！");
messagebox.show(ex.tostring());
} if (cbox.text == "")
{
messagebox.show("请生成密钥！");
return;
}
}
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