examcloud-frontend
/
student-client-v3


			
				
					
						
						
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							<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>解密日志-不要转发给别人</title>
  </head>
  <body>
    <div>
      <textarea name="" id="encryptLog" cols="100" rows="50"></textarea>
      <div></div>
      <button onclick="goDecrypt()">解密</button>

      <div id="result"></div>
    </div>

    <script>
      async function goDecrypt() {
        const encryptLog = document.querySelector("#encryptLog").value;
        async function replaceAsync(str, regex, asyncFn) {
          const promises = [];
          str.replace(regex, (match, ...args) => {
            const promise = asyncFn(match, ...args);
            promises.push(promise);
          });
          const data = await Promise.all(promises);
          return str.replace(regex, () => data.shift());
        }

        const res = await replaceAsync(
          encryptLog,
          />>==>>(.*)<<==<</g,
          async (v, p1) => await decrypt(p1)
        );
        // decrypt(encryptLog);
        document.querySelector("#result").innerText = res;
      }

      const originalConsoleLog = console.log;

      async function decrypt(base64) {
        // const base64 = `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`;
        const ab = window.atob(base64);
        originalConsoleLog.call(window, ab);
        var buf = new ArrayBuffer(ab.length);
        var bufView = new Uint8Array(buf);
        for (var i = 0, strLen = ab.length; i < strLen; i++) {
          bufView[i] = ab.charCodeAt(i);
        }
        originalConsoleLog.call(window, bufView);

        const jwkEcKey = {
          alg: "RSA-OAEP-256",
          d:
            "SQ9xIsgfBdHPKspGG8t3IK-8j3VVVYTmEP86wD0K7a8zgP54hS9JXOp-xEq3xn2Bb3wXDij01S3f5mE_tbZg5OWzGlT_zB9aBwnnRaRVS-tazgSbE4DJ5cUqWDXbH68A3HK-VqHO7pT0iFjF_rpx1vzrGY5HhxLeT7JJuE2JiUfnjmN3JT1294oqc6D5hAnZ7iUl4i9nLSJIKJV3Hs20FaVR3u5BDFFn-2tZazLYhfW1k0jZAWy0E7Bv6t8lr_aIKkV0emb2O3mEl9l58sMAxBc7MPJDeSb5CD3PGKUCz_ZXFw-S_Ye34-WGTQSRp1otj15eWa5Pn59ze4-hKUpxiXf2D-oj60j2FyjgHrXGTvA0V013PWBPjkGq7yoAeZyzBqrqry4I_xanbJt5BPZ-Su_r3bYgGyX8UWDasyt6-DiEJAVpxLSoqnVUkxipvhaAIPKFnPLMRtlaJ6fzjVNPyf3R6hYmsthOLvzzvneKZ_gOT1Ai-ClXP2uvAdXSzoRhbdIz_jigxWM9Y6V-1stOHcLYi1hl5MJz82yqs8y1fz2_Su9viQ2caIRyQJoxGcOE7erxj1tcmx5-VG7zUSQycaiMIbVg7dYtqXAeJc8iPAiNuX2lLHP6NpfZhmQ19TevNvFVHGxQuHL-wMGfPHRIedDP3pLuwYygdZ_S_N0MnOE",
          dp:
            "y9FtLP_LM7QN1B4lljlzxfHBNCg_al-E1r0JpGF6iwoAUM6d5AjJSOQMZut9Zo8A_IXjEOkQnqu1j03Cc6qYcZ1BXut0VyYVaa-kh8WcFutPmJ6CbTUzd4G9oxne1bDCENaIGBxiIcAz7G00d3rOqhRGxAN140IPA-6SJBBjT2kPIUVhL5b3FuBAVJmFzUL1WcRJ2ZlscLYjhj7gNRZD6Hj9ZLWfroDxnupVXjqa-fSaSULSKnZ9O42x7xjsRuDmh2O-H5bq4ik-2dO9MQ5cAVLAK3rIGCiBq_YMJ4NPXB4d5KC3T5gll2qcJNzu8y2qAIo-mU-34CCTFtvrCVeASQ",
          dq:
            "ONEU7cEKL5flMnSh_uGWJKHbxW1n-bWbzNmFGI24RdxmSwntlfZwnpzpkCgkkmWadFzg0luy6FByNPHCHBP1uQ2QPW5USv3QXmLwiVrjQaV5u0F57Is1e2T_uXhpffbCJcht2UM8zezMiouChZ7fMbl2aDN32uPJ92_tgSHEP-U6CpJunuvdXTif3k0Q73QnEQ0yFsoaMprTVspEkkYn6EbojKxpGsbqdIry8TFVPPd5XVzo17PmSfOVsN1xJsiQatqp1QH2SQzB0b-c2K2lMgkDU_8kyCMY_Wy7fwO8aT1oM_veSJbz1OEkhrV44ONF-iJ_qRVmHuXVXS82pWemZQ",
          e: "AQAB",
          ext: true,
          key_ops: ["decrypt"],
          kty: "RSA",
          n:
            "3vl4K5l_XhHYnm28Nz0YoaP7UTUPRQD4_S2btf1R1kzuVbbqg3eBru7OOcPSVOVFd0GGwy1cXlq1-J9XqFTEscFLIQYCimvLhtSDs7797b6DMwpWQ7Y_QvaVXhwgZZh7KlD0pLUtF2NwDYK10bPaWHEik-OwDCQE5P5Gv6Oz4TZZAjSpxOCNx_ui_KGeu8c63if1-mNwzn70U82LjhbHy3edDjAdT0JDPxqYPiMwSo8lhDy1CqFiyQxq2unPHJcRxb9fAwV3siyWOdHQaaKH2GvCxhpsPUHnVlIng02yeZBzv-UIz6fAPWNhC-6H_5GeZ_Qlk6qQIPzFQ3DPD82VGF9GWGbkdWgHm3JZsSyjjZXYSU3lmc3gaO8q5ZDGGlmh31ApOYddEsFcfYobI3RJwhlvAFHxr9YtRjXlaL-YUf_KwztJFFNw75WSWp8-WtMy96LL3cljjR3rxHYBjiOYDsReTIIeLEDEigcKFyswuc71qSIB6XQFxM6J6u3Urvu3uoPiu-aqujVj6gtOSfOHGvCXq05n3eBk89o2kY92J10v1ANDbZo6HneqKFKJ2Dh8uUaavdSJfHWc8QTy2b50HasxZj9mv_ADaBYaGb2C_tnNvgkusnHu87qxt95iqLPJOzMy4au0UD6kPZ8aTkGZq_b2gT9LHxi6PPdEOjRdVxs",
          p:
            "_x26H7eFjKNAjfdarx77zpEP4Azs3wGsVc6XIsiBfcfMifiwYW2NPHuHt7c6mUg_TfvrmIrnQPxPR8ldkuyiSZKy-rf7R6UywUKvv6q_xYVR1Q1-qBBQZ0m2TW9GmELifbAVbZsz8x-Hlr-J5ZqYnp-8_4bfF-7W_kMj-U3hAq-giGAd1GDSWP4BlBoK4LAHQmFsOX6v-iU6e6mloqfG7Phi_Nxzn5DqS608JXO7M0CxGbBjppFWp1Yw_C-FafjW0ZPEgOM6iQxeuyCDmtj2xbVT6qNoqRhh2O7VizsIdesI3jP-JMFZYSqeOcSI_9T1zofywe5-BEGDWU7yhruXeQ",
          q:
            "3788ETKL_i-jH88W-XDFfMEXN4zGHc4u3Oq1nC2rNChto8Sxk7SqBsq_YMip_OU3YJ_QfHxALVakzTSgEg941PKyyzcQ6RyxxC5guzrs5x83qoVq4Tib5fLxHeAcZwHBXqTGR3RLdHjijBtl0g7HrW93LjU5qP1WKZAHJ2ZBT130-5uZgpOOTqrTtj0WrqRTo6VZ_Swp6d1TjaNyjGTxywDnqHTAdOjKfYuDhlt4-YT5RnUQ5lJ7dbT89gylF2CfS4PnA2lsL-sAIX6znRisCTO84phspx3UQmsjxsOo8tRdq_MdBNllTu23VFvryuapme1iOlkF8TtZyhuQNSL6Mw",
          qi:
            "NAzHngXi5kXs97CuBnoXvtPD-7UHHrRhp4d_scVSp9cv_avBnrUVvJaSpWTJiT23HVd55bSlethL5r6qelPmcXf-q7fmmyyFIz9kXmR-FGY3jwxg_fQWvHlEUmlAVCI1jBZN6KYlbG1XQ6FVG18mDc0Uacv1qkaDHufOYnzU974vIdSux-Jx8Ds73nzDAfXx5kg-DUO_7Ci1OvA_WyXgWzh0j8I3opY0Sg_7VIdVLyXdUMUbZIHM45-qU_sssGMZjTzea3Iw16BL6CowlI_5aWGtWZTXB8MrdQnjSZCs9AJwJnuLx54KHg-duQ0GXNrUDJ-LMgPq9hlfITzPpA6oHQ",
        };
        const privateKey = await window.crypto.subtle.importKey(
          "jwk",
          jwkEcKey,
          {
            name: "RSA-OAEP",
            // modulusLength: 4096,
            // publicExponent: new Uint8Array([1, 0, 1]),
            hash: "SHA-256",
          },
          true,
          ["decrypt"]
        );

        try {
          const res = await window.crypto.subtle.decrypt(
            {
              name: "RSA-OAEP",
              // modulusLength: 4096,
              // publicExponent: new Uint8Array([1, 0, 1]),
              // hash: "SHA-256",
            },
            privateKey,
            bufView
          );

          originalConsoleLog.call(window, JSON.stringify(res));
          // const ab2str = function(buf) {
          //   return String.fromCharCode.apply(null, new Uint8Array(buf));
          // };
          // originalConsoleLog.call(window, ab2str(res));
          let deenc = new TextDecoder();
          const deencoded = deenc.decode(res);
          originalConsoleLog.call(window, deencoded);

          return await deencoded;
        } catch (error) {
          originalConsoleLog.call(window, JSON.stringify(error));
          originalConsoleLog.call(window, error.name + error.message);
        }
      }
    </script>
  </body>
</html>