请大神对RSA的加密过程详解，尽量有详细说明

wang158851 · 发表于 2021-3-9 19:51:03

encryptKey.js原文如下：
由于字符长度限制，已保存为.txt，上传至附件，可使用其他编辑器查看

程序中如下：
      <input type="hidden" id="encryptKey" name="encryptKey" value="" />
      <input type="hidden" id="str_encryptKey" name="str_encryptKey" value="fu2pWMSK/HEpmcQW9Z3yHEAmZj0YuDd6JLWBRhmI3hm70PKvcn8gfgOiWhJkeLwbPMIVDWFekyx8ueEx3qtoD7Y0tKVm2sVWcfy9yyk7pfs3dCP50FaZyUAXncUXP9uveB9wwnNXAGS7kupaZRlCvuQQts6Be06unSk+0N8xs5w=" />

加密算法如下：
var encryptKey = "";
if ($("#str_encryptKey").val() != "" && $("#str_encryptKey").val() != undefined) {
      encryptKey = encryptCombination($("#timestamp").val(), $("#longNumber").val(), $("#str_encryptKey").val(), $("#combineType").val(), $("#publicKey").val());
      $("#encryptKey").val(encryptKey);
}
return true;

抓包POST数据为:
username=(已隐藏)&
password=(已隐藏)&
isRememberMe=0&
returnurl=&
encryptKey=R8CRCd2czgq2D90HW%2BDFCWNThLOeUKXEW1HGOZdXJ4NRwmA4QXHeYnkV17oZLDqG%2BUBOaxg7tr4pIxOM27GU8qoMFMXiNgNYv4a7DYn1RUpv61amkM%2FwgBzy14N%2FBwjSO5h0QWDVZ2HEPk3AFhlpI3fr70xlSrPnurGnOkCD5yw%3D%7Cfu2pWMSK%2FHEpmcQW9Z3yHEAmZj0YuDd6JLWBRhmI3hm70PKvcn8gfgOiWhJkeLwbPMIVDWFekyx8ueEx3qtoD7Y0tKVm2sVWcfy9yyk7pfs3dCP50FaZyUAXncUXP9uveB9wwnNXAGS7kupaZRlCvuQQts6Be06unSk%2B0N8xs5w%3D%7CkLMeAg4UFyVtZBqD4s4xmREjaRK%2BVjIWSqQGa8rTDtufnybJj5aE9rVG1qmBuAiLND74X30QK%2BRvAMefcqiY2FJoisttR3TQEk4N3naLaY8uMiFsNxBF1ZzyiRYZAkDWs1vglvsE9vWRceTT0yJgQ3ky%2Ban%2BoFxShmxw%2FZ8HH7A%3D%7Cblo4GFurZpZh7YmfC9eBqtkV3hUO11X9rab%2FVzmdombpVke4muVr1pUU0T0R82U6qrfEc4d6%2FMFvtS6iUkg0mHbjmj0z6734lwLPRrvtJi3Z%2Fa5%2BAFp6vZt3sP1hvLEIIldmHlJyAqP9darLVbvX5N5vgjpQswvWuC1vIlWcLSA%3D&
longNumber=9924730710&
publicKey=-----BEGIN+PUBLIC+KEY-----%0D%0AMIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCSjUbexYfZ0jItT4AEOIEfa3%2Fk%0D%0A4q%2BxFkZULB%2BWzNSgMshlVon6KKTRv3XLSnCYGQHHxHHEY8W3z2RMqYClHp9CZ2i%2B%0D%0A%2FF5ukarDvX43iuq1V5MlKNCHyluWFRzkeMTJ%2BxAXCBRnoyl3WHZ1t95462ALIkT%2F%0D%0AC1sUKwJs2l2nKFDigQIDAQAB%0D%0A-----END+PUBLIC+KEY-----%0D%0A&
str_encryptKey=fu2pWMSK%2FHEpmcQW9Z3yHEAmZj0YuDd6JLWBRhmI3hm70PKvcn8gfgOiWhJkeLwbPMIVDWFekyx8ueEx3qtoD7Y0tKVm2sVWcfy9yyk7pfs3dCP50FaZyUAXncUXP9uveB9wwnNXAGS7kupaZRlCvuQQts6Be06unSk%2B0N8xs5w%3D&
combineType=16&
timestamp=1614605040932

以上绿色标记参数均可以从GET中得到，橙色标记部分为str_encryptKey的值，多次抓包发现该值的位置不固定

希望得到大神的指点，同时希望本贴能成为新手解读RSA加密算法的教程，如果还需更多资料，请私信我，或者回帖

非常感谢