{"id":186804,"date":"2020-10-21T03:39:34","date_gmt":"2020-10-20T19:39:34","guid":{"rendered":"http:\/\/4563.org\/?p=186804"},"modified":"2020-10-21T03:39:34","modified_gmt":"2020-10-20T19:39:34","slug":"%e8%af%9a%e5%bf%83%e8%af%b7%e6%95%99%e5%85%b3%e4%ba%8e-base64-%e7%9a%84%e9%97%ae%e9%a2%98","status":"publish","type":"post","link":"http:\/\/4563.org\/?p=186804","title":{"rendered":"\u8bda\u5fc3\u8bf7\u6559\u5173\u4e8e base64 \u7684\u95ee\u9898"},"content":{"rendered":"
\n
\n
\n

\u8bda\u5fc3\u8bf7\u6559\u5173\u4e8e base64 \u7684\u95ee\u9898 <\/h1>\n

<\/p>\n

\n
\u8cc7\u6df1\u5927\u4f6c : Chaox <\/span> <\/i> 5<\/span> <\/div>\n
<\/div>\n<\/p><\/div>\n<\/p><\/div>\n<\/p><\/div>\n
<\/p>\n

\u4e00\u76f4\u5f88\u7591\u60d1 base64 \u7684\u4f5c\u7528\u3002\u6211\u4eec\u4f20\u8f93\u6587\u4ef6\u4e0d\u7ba1\u662f\u6587\u672c\u6587\u4ef6\u8fd8\u662f\u4e8c\u8fdb\u5236\u6587\u4ef6\u6700\u540e\u90fd\u662f\u4e8c\u8fdb\u5236\uff0c\u6587\u672c\u6587\u4ef6\u53ea\u662f\u5bf9\u4e8c\u8fdb\u5236\u7684\u4e00\u79cd\u5904\u7406\u800c\u663e\u793a\u51fa\u6587\u672c\u3002 \u4f20\u8f93\u6587\u4ef6\u65f6\uff0c\u5982\u679c\u6211\u4eec\u662f\u7528 ASCII \u7801\u4f20\u8f93\uff0c\u4f20\u8f93\u5230\u5bf9\u65b9\u540e\uff0c\u5bf9\u65b9\u4e5f\u6709 ASCII \u7801\u89e3\u91ca\u5c31\u53ef\u4ee5\u4e86\u3002\u5176\u4ed6\u7f16\u7801\u5982 UTF-8 \u4e4b\u7c7b\u4e5f\u662f\u5982\u6b64\u3002\u4e3a\u4ec0\u4e48\u9700\u8981 base64 \uff1f<\/p>\n

\u5728\u7f51\u4e0a\u770b\u5230\u8fd9\u4e48\u4e00\u6bb5\u8bdd\uff1a<\/p>\n

\u6211\u4eec\u77e5\u9053\u5728\u8ba1\u7b97\u673a\u4e2d\u4efb\u4f55\u6570\u636e\u90fd\u662f\u6309 ascii \u7801\u5b58\u50a8\u7684\uff0c\u800c ascii \u7801\u7684 128 \uff5e 255 \u4e4b\u95f4\u7684\u503c\u662f\u4e0d\u53ef\u89c1\u5b57\u7b26\u3002\u800c\u5728\u7f51\u7edc\u4e0a\u4ea4\u6362\u6570\u636e\u65f6\uff0c\u6bd4\u5982\u8bf4\u4ece A \u5730\u4f20\u5230 B \u5730\uff0c\u5f80\u5f80\u8981\u7ecf\u8fc7\u591a\u4e2a\u8def\u7531\u8bbe\u5907\uff0c\u7531\u4e8e\u4e0d\u540c\u7684\u8bbe\u5907\u5bf9\u5b57\u7b26\u7684\u5904\u7406\u65b9\u5f0f\u6709\u4e00\u4e9b\u4e0d\u540c\uff0c\u8fd9\u6837\u90a3\u4e9b\u4e0d\u53ef\u89c1\u5b57\u7b26\u5c31\u6709\u53ef\u80fd\u88ab\u5904\u7406\u9519\u8bef\uff0c\u8fd9\u662f\u4e0d\u5229\u4e8e\u4f20\u8f93\u7684\u3002\u6240\u4ee5\u5c31\u5148\u628a\u6570\u636e\u5148\u505a\u4e00\u4e2a Base64 \u7f16\u7801\uff0c\u7edf\u7edf\u53d8\u6210\u53ef\u89c1\u5b57\u7b26\uff0c\u8fd9\u6837\u51fa\u9519\u7684\u53ef\u80fd\u6027\u5c31\u5927\u964d\u4f4e\u4e86\u3002<\/p>\n

\u8fd9\u91cc\u4e3a\u4ec0\u4e48\u4e0d\u540c\u8bbe\u5907\u5904\u7406\u65b9\u5f0f\u4f1a\u6709\u4e0d\u540c\u5462\uff0c\u4f20\u8f93\u8fc7\u7a0b\u4e2d\u4e0d\u90fd\u662f\u4e8c\u8fdb\u5236\u5417\uff0c\u76f4\u63a5\u628a\u4e8c\u8fdb\u5236\u4f20\u7ed9\u5bf9\u65b9\u4e0d\u5c31\u53ef\u4ee5\u4e86\uff1f<\/p>\n<\/p><\/div>\n

\u5927\u4f6c\u6709\u8a71\u8aaa<\/b> (41<\/span>) <\/div>\n
<\/div>\n<\/p><\/div>\n<\/p><\/div>\n
    \n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : ipwx <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    HTML \/ HTTP \u8fd9\u4e00\u5957\u5bf9\u4e0d\u53ef\u89c1\u5b57\u7b26\u5c31\u4e0d\u592a\u53cb\u5584\u3002\u4f60\u53ef\u4ee5\u770b\u770b\u76f8\u5173\u6807\u51c6\u3002 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : FutherAll <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u76f4\u63a5\u4f20\u4e8c\u8fdb\u5236\u6ca1\u529e\u6cd5\u4fdd\u8bc1\u4e8c\u8fdb\u5236\u5b89\u5168\uff1f <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : P0P <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u5f88\u591a\u53e4\u8001\u7684\u534f\u8bae\u5bf9\u4e8c\u8fdb\u5236\u4f20\u8f93\u652f\u6301\u4e0d\u597d\uff0c\u6216\u8005\u5f88\u591a\u573a\u666f\u4e0b\u4e8c\u8fdb\u5236\u7f16\u7801\u53d7\u9650\uff0c\u6bd4\u5982 FTP \u534f\u8bae\u5c31\u9700\u8981\u6307\u660e\u662f Text mode \u8fd8\u662f Binary mode <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : icyalala <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u5982\u679c\u4f60\u6309\u4e8c\u8fdb\u5236\u4f20\u8f93\uff0c\u90a3\u65e0\u6240\u8c13\u5185\u5bb9\u4e86\u3002
    \u4f46\u662f\u4f60\u8981\u6309\u6587\u672c\u6587\u4ef6\u4f20\u8f93\uff0c\u90a3\u4e8c\u8fdb\u5236\u5185\u5bb9\u5c31\u653e\u4e0d\u8fdb\u6765\u3002<\/p>\n

    \u4e3e\u4e2a\u4f8b\u5b50\uff0c\u670d\u52a1\u7aef\u548c\u5ba2\u6237\u7aef\u901a\u4fe1\u90fd\u662f\u7528 JSON \u683c\u5f0f\uff0cJSON \u6309\u6807\u51c6\u662f UTF-8 Only \u7684\uff0c
    \u5982\u679c\u670d\u52a1\u7aef\u60f3\u901a\u8fc7 JSON \u4f20\u9012\u4e00\u5f20 PNG \u683c\u5f0f\u7684\u9a8c\u8bc1\u7801\u56fe\u7247\uff0c\u90a3\u8fd9\u4e2a\u56fe\u7247\u662f\u4e8c\u8fdb\u5236\u7684\u5c31\u6709\u95ee\u9898\u4e86\u3002
    \u6bd4\u5982\u4e8c\u8fdb\u5236\u91cc\u6709 ‘\u0000’ \u5b57\u7b26\uff0c\u800c\u8fd9\u7b97\u4f5c ASCII \u5b57\u7b26\u4e32\u7684\u7ec8\u6b62\u7b26\uff0c\u663e\u7136\u4e0d\u884c\u3002
    \u8fd9\u65f6\u53ea\u80fd\u5148 base64 \u7f16\u7801\u4e00\u4e0b\u624d\u80fd\u653e\u5230 JSON \u91cc\u3002 <\/div>\n<\/p><\/div>\n<\/li>\n

  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : julyclyde <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u4f20\u8bf4\u53e4\u4ee3\u6709\u4e9b\u8bbe\u5907\u662f 7bit \u7684
    \u4e0d\u8fc7\u6211\u6ca1\u6709\u771f\u89c1\u8fc7\uff0c\u4e5f\u6ca1\u542c\u8bf4\u8fc7\u5177\u4f53\u578b\u53f7 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : unixeno <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    base64 \u7684\u610f\u4e49\u5c31\u662f\u5168\u90e8\u7528\u53ef\u89c1\u5b57\u7b26\u6765\u8868\u793a\u4e00\u6bb5\u4e8c\u8fdb\u5236
    \u4e0d\u662f\u6240\u6709\u5730\u65b9\u90fd\u662f\u6309\u4e8c\u8fdb\u5236\u5904\u7406\u7684\uff0c\u6bd4\u5982 url\uff0c\u6bd4\u5982\u7f51\u9875
    \u8fd9\u79cd\u5730\u65b9\u4f60\u8981\u60f3\u5305\u542b\u4e00\u6bb5\u4e8c\u8fdb\u5236\uff0c\u7279\u522b\u662f\u5305\u542b\u4e0d\u53ef\u89c1\u5b57\u7b26\u548c\u975e\u6cd5\u5b57\u7b26\u7684\u4e8c\u8fdb\u5236\uff0c\u5c31\u5fc5\u987b\u5148\u7528\u53ef\u89c1\u5b57\u7b26\u7f16\u7801
    \u867d\u7136\u8fd9\u4e2a\u7528 16 \u8fdb\u5236\u6765\u8868\u793a\u4e5f\u53ef\u4ee5\uff0c\u4f46\u662f base64 \u6bd4 16 \u8fdb\u5236\u66f4\u7701\u7a7a\u95f4 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : CEBBCAT <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    base64 \u662f\u4e00\u79cd\u6620\u5c04\uff0c\u8fd9\u79cd\u6620\u5c04\u6211\u4e0d\u80fd\u5f88\u597d\u5730\u89e3\u91ca\uff0c\u53bb\u770b\u7f16\u7801\u8fc7\u7a0b\u5c31\u660e\u767d\u4e86\uff0c\u76f8\u4fe1\u4e3b\u516b\u6210\u4e5f\u660e\u767d\u662f\u600e\u6837\u53d8\u5e7b\u7684\u3002<\/p>\n

    \u5728\u6211\u770b\u6765\u4e3b\u8d34\u7684\u90a3\u6bb5\u5f15\u7528\u6709\u4e0d\u5c11\u9519\u8bef\u7684\u5730\u65b9\uff1a<\/p>\n

    > \u6211\u4eec\u77e5\u9053\u5728\u8ba1\u7b97\u673a\u4e2d\u4efb\u4f55\u6570\u636e\u90fd\u662f\u6309 ascii \u7801\u5b58\u50a8\u7684
    \u5b58\u50a8\u7684\u662f\u4e8c\u8fdb\u5236\uff0cASCII \u662f\u4e00\u79cd\u7f16\u7801<\/p>\n

    > \u800c ascii \u7801\u7684 128 \uff5e 255 \u4e4b\u95f4\u7684\u503c\u662f\u4e0d\u53ef\u89c1\u5b57\u7b26
    ASCII \u53ea\u5b9a\u4e49\u4e86 128 \u4e2a\u5b57\u7b26<\/p>\n

    \u540e\u9762\u7684\u5c31\u4e0d\u8bf4\u4e86\uff0c\u6211\u4e5f\u4e00\u74f6\u5b50\u4e0d\u6ee1\u3002\u5173\u4e8e\u4e3a\u4ec0\u4e48\u6709\u65f6\u5019\u9700\u8981\u4f7f\u7528 base64 \u5bf9\u6570\u636e\u8fdb\u884c\u7f16\u7801\uff0c\u53ef\u4ee5\u8ba4\u4e3a\u8fd9\u662f\u5bf9\u534f\u8bae\u7684\u4e00\u79cd\u59a5\u534f\u5427\uff0c\u6bd4\u5982\u4e0a\u8bf4\u7684 JSON \u6216 HTTP\uff0c\u800c TCP \u534f\u8bae\u7531\u4e8e\u5b9a\u4e49\u4e86\u6570\u636e\u957f\u5ea6\uff0c\u6240\u4ee5\u53ef\u4ee5\u76f4\u63a5\u4f20\u9012\u4e8c\u8fdb\u5236\u6570\u636e\u800c\u4e0d\u9700\u8f6c\u4e49\u3002<\/p>\n

    HTTP \u7684\u7ed3\u675f\u7b26\u53f7\u5e94\u8be5\u662f\u4e24\u4e2an \u8fd8\u662f\u4ec0\u4e48\u7684\uff0c\u53ef\u4ee5\u67e5\u770b\u4e00\u4e0b\u7ef4\u57fa\u767e\u79d1\u6216\u8005\u76f8\u5173\u6807\u51c6\u6587\u4ef6\uff0cRFC ISO \u4e4b\u7c7b\u7684\u3002<\/p>\n

    JSON \u7684\u8bdd\uff0c\u5047\u5982\u4f60\u60f3\u5728\u4e00\u4e2a k-v \u7684 v \u4e2d\u5b58\u5165\u4e00\u4e2a\u5e26”\u7684\u5b57\u7b26\u4e32\uff0c\u90a3\u4e48\u4e3a\u4e86\u907f\u514d\u51fa\u73b0\u8bfb\u53d6\u9519\u8bef\uff0c\u4f60\u53ea\u597d\u4f7f\u7528\u8f6c\u4e49\u6216\u8005 base64 \u8fd9\u79cd\u65b9\u5f0f\u6765 escape <\/p><\/div>\n<\/p><\/div>\n<\/li>\n

  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : dddd1919 <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u5982\u679c\u9700\u8981\u6587\u672c\u4fdd\u5b58\u7684\u573a\u666f\u6bd4\u5982\u6570\u636e\u5e93\uff0c\u8fd8\u662f\u5f88\u6709\u7528\u7684 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : Jirajine <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    base64 \u7c7b\u4f3c hex \u7684\u4f5c\u7528\uff0c\u4e0d\u8fc7\u66f4\u7701\u7a7a\u95f4\u3002 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : Corua <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u9762\u5411\u6587\u672c\u4e0e\u9762\u5411\u5b57\u8282\u7684\u533a\u522b @Jirajine #9 4 \u4e2a\u5b57\u7b26\u8868\u793a\u539f\u672c 3 \u5b57\u8282\u7684\u6570\u636e \u66f4\u5360\u7a7a\u95f4\u4e86\u624d\u662f <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : Phariel <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u8fd9\u6837\u505a\u7684\u597d\u5904\u662f \u4fe1\u606f\u5728\u4f20\u8f93\u8fc7\u7a0b\u4e2d\u4e0d\u4f1a\u4e22\u5931 \u4e0d\u7136\u5982\u679c\u9047\u5230\u4f20\u9012\u73af\u8282\u4e2d\u8282\u70b9\u7cfb\u7edf\u4e0d\u8bc6\u522b\u4e0d\u63a5\u53d7\u4e0d\u517c\u5bb9\u5b57\u7b26 \u5c31\u53ef\u80fd\u4f20\u9012\u4e0d\u4e0b\u53bb\u6216\u8005\u66ff\u6362\u4e0d\u517c\u5bb9\u5b57\u7b26\u4e3a\u5176\u4ed6\u517c\u5bb9\u5b57\u7b26\u9020\u6210\u4fe1\u606f\u566a\u70b9\u6c61\u67d3\u6570\u636e <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : Mutoo <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u4e3e\u4e2a\u7b80\u5355\u7684\u4f8b\u5b50\uff1a\u6587\u672c\u8f6c\u8f93\u534f\u8bae\u5e38\u5e38\u4ee5\u6807\u51c6\u7684 c_str \u4e3a\u622a\u4f53\uff0c\u0000 \u4f5c\u4e3a\u622a\u6b62\u7b26\u3002\u800c\u4e8c\u8fdb\u5236\u6570\u636e\u4e2d\u5f88\u53ef\u80fd\u5b58\u5728\u6216\u591a\u6216\u5c11\u7684 \u0000\uff0c\uff08\u8fd8\u6709\u5f88\u591a\u4e0d\u53ef\u89c1\u7684\u63a7\u5236\u5b57\u7b26\uff09\uff0c\u76f4\u63a5\u653e\u5728\u8fd9\u6837\u7684\u534f\u8bae\u4e0a\u662f\u4f20\u8f93\u4e0d\u4e86\u7684\u3002base64 \u89e3\u51b3\u7684\u5c31\u662f\u5728\u6587\u672c\u8f6c\u8f93\u534f\u8bae\u4e0a\u53d1\u9001\u4e8c\u8fdb\u5236\u6570\u636e\u7684\u95ee\u9898\u3002 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : reus <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u4f20\u8f93\u5f53\u7136\u4e0d\u90fd\u662f\u4e8c\u8fdb\u5236 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : lmmortal <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    @Jirajine \u4e3a\u4ec0\u4e48\u8bf4 base64 \u6bd4 hex \u66f4\u7701\u7a7a\u95f4\u5462\uff1f\u968f\u624b\u8bd5\u4e86\u4e0b\uff1a11111111 \u7528 hex \u8868\u793a\u662f FF\uff0c\u8f6c\u6362\u6210 base64 \u5c31\u4e0d\u6b62\u4e24\u4f4d\u4e86 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : dcoder <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    @Chaox
    \u8ddf\u4e2d\u95f4\u8def\u7531\u8bbe\u5907\u5e94\u8be5\u65e0\u5173…
    \u5e94\u8be5\u662f\u7aef\u5230\u7aef\u7684 HTTP encoding\/decoding prefer \u7eaf\u6587\u672c, \u89c4\u5b9a\u8fd9\u6837\u66f4 reliable <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : opengps <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u5176\u5b9e\u90fd\u662f\u4e0d\u540c\u5c42\u9762\u7684\u5c01\u88c5\uff0c\u7c7b\u6bd4\u60f3\u60f3\u963f\u6ce2\u7f57 64K \u5185\u5b58\u80fd\u4e0a\u5929\uff0c\u5f00\u53d1\u96be\u5ea6\u6709\u591a\u5927\uff0c\u518d\u770b\u770b\u4f60\u5927\u7684 helloworld \u7684\u5305
    \u4e8c\u8fdb\u5236\u7684\u786e\u662f object\uff0c\u8ba1\u7b97\u673a\u4e16\u754c\u7684\u4e07\u7269\u4e4b\u672c\uff0c1bit\uff0c
    \u7136\u540e\uff0c8 \u4e2a bit \u53ef\u4e00\u8868\u793a 1byte\uff0c\u53ef\u4ee5\u8868\u793a\u6570\u5b57\uff0c\u5b57\u6bcd\uff0c\u8fd9\u65f6\u5019 ascii
    \u7136\u540e\uff0c2-3 \u4e2a byte\uff0c\u5c31\u53ef\u4ee5\u4e0a\u5347\u5230\u5404\u4e2a\u56fd\u5bb6\u8bed\u8a00\u5b57\u7b26\u4e86\uff0c\u8fd9\u65f6\u5019\u6bd4\u5982\u662f unicode
    \u518d\u7136\u540e\uff0c\u540c\u6837\u9053\u7406\u7528\u6765\u5e72\u522b\u7684\uff0c\u6bd4\u5982\u8868\u793a rgb \u7684\u4e09\u539f\u8272 #001122
    \u7136\u540e\u7684\u7136\u540e\uff0c\u5c31\u662f\u4f60\u73b0\u5728\u770b\u5230\u7684\u4e86<\/p>\n

    \u672a\u6765\u7684\u5b89\u88c5\u5305\u4f1a\u66f4\u5927\uff0c\u5f53\u7136\u5b58\u50a8\u5df2\u7ecf\u5141\u8bb8\uff0c\u6b63\u5982\u4e09\u4f53\u4e2d\u63cf\u8ff0\u7684\uff1a\u6765\u81ea 21 \u4e16\u7eaa\u7684\u53e4\u8001\u75c5\u6bd2 <\/p><\/div>\n<\/p><\/div>\n<\/li>\n

  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : t6attack <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u4ee5\u8fd9\u4e2a rsa \u52a0\u89e3\u5bc6\u7684\u7b80\u5355\u6f14\u793a\u4e3a\u4f8b\uff1a https:\/\/v2ex.com\/t\/542798#r_6999455
    \u5982\u679c\u52a0\u5bc6\u540e\u7684\u6570\u636e\u4e0d\u7528 base64 \u7f16\u7801\u7684\u8bdd\uff0c\u662f\u65e0\u6cd5\u76f4\u63a5\u663e\u793a\u5728\u9875\u9762\u4e0a\u7684\uff0c\u663e\u793a\u4e86\u4e5f\u662f\u4e71\u7801\u3002\u4e71\u7801\u590d\u5236\u7c98\u8d34\u5230\u522b\u5904\u5c31\u662f\u53e6\u4e00\u4efd\u6570\u636e\u4e86\uff0c\u6587\u672c\u683c\u5f0f\u5c31\u6ca1\u95ee\u9898\u3002\u5305\u62ec rsa \u7684\u5bc6\u94a5\u5bf9\uff0c\u60f3\u5199\u8fdb\u4ee3\u7801\u91cc\uff0c\u5c31\u5fc5\u987b\u7528\u6587\u672c\u683c\u5f0f\u3002
    \u8fd9\u5c31\u662f\u6587\u672c\u683c\u5f0f\u7684\u53ef\u8bfb\u6027\u3001\u517c\u5bb9\u6027\u3002<\/p>\n

    \u6240\u8c13\u7684 hex\uff0c\u662f 16 \u8fdb\u5236\u6570\u636e\u6587\u672c\u5316\u3002\u6bd4\u5982\uff0c\u4f60\u7528\u4e8c\u8fdb\u5236\u7f16\u8f91\u5668\u6253\u5f00\u4e00\u4efd\u6570\u636e\uff0c\u8089\u773c\u53ef\u89c1\u7684\uff0c\u5c31\u662f 16 \u8fdb\u5236\u6570\u636e\u7684\u6587\u672c\u5316\u8868\u8fbe\u3002HEX \u53ea\u80fd\u7528 16 \u4e2a\u5b57\u7b26\u8868\u8fbe\u6570\u636e\uff0c\u7684\u5176\u4ed6\u6587\u672c\u90fd\u6d6a\u8d39\u4e86\u3002\u5f53\u7136\u6bd4 base64 \u6d6a\u8d39\u7a7a\u95f4\u3002 <\/p><\/div>\n<\/p><\/div>\n<\/li>\n

  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : msg7086 <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u4e0d\u662f\u6240\u6709\u7684\u7528\u4f8b\u90fd\u652f\u6301\u4e8c\u8fdb\u5236\u3002<\/p>\n

    \u6bd4\u5982\u6253\u5370\u5728\u7eb8\u4e0a\u7684\u65f6\u5019\u5c31\u4e0d\u80fd\u7528\u4e8c\u8fdb\u5236\uff0c\u663e\u793a\u5728\u5c4f\u5e55\u4e0a\u4e5f\u4e0d\u884c\u3002 <\/p><\/div>\n<\/p><\/div>\n<\/li>\n

  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : Bromine0x23 <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    @lmmortal \u4e00\u5b57\u8282\u592a\u77ed\u4e86\uff0cHEX \u662f 4bit \u4e00\u5b57\u7b26\uff0cBase64 \u662f 6bit \u4e00\u5b57\u7b26\uff0c\u52a0\u4e0a Base64 \u8981\u8fdb\u884c\u586b\u5145\uff0c\u6700\u540e\u957f\u5ea6\u4f1a\u662f 4 \u7684\u500d\u6570
    0xFF(8bit) \u7684\u65f6\u5019\u5c31\u662f 2 vs 4\uff0c\u4f46\u662f\u5230 0xFFFF(16bit) \u5c31\u662f 4 vs 4 \u4e00\u6837\u957f\u4e86\uff0c0xFFFFFF (24bit) \u662f 6 vs 4 \u5c31\u53cd\u8d85\u4e86 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : xx6412223 <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u5728\u7f51\u7edc\u6a21\u578b\u4e2d\uff0c\u4e00\u822c\u53ea\u6709\u6700\u5e95\u7aef\u7684\u7269\u7406\u5c42\u624d\u4ee5\u4e8c\u8fdb\u5236\u4f20\u8f93\uff0c\u800c\u5176\u4ed6\u7684\u8981\u8bfb\u53d6\u6570\u636e\u5305\u4e2d\u5730\u5740 \/\u7aef\u53e3 \/\u957f\u5ea6\u7b49\u7b49 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : lmmortal <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    @Bromine0x23 \u4e0d\u592a\u61c2\uff0cFFFFFF \u8fd9\u4e2a 24 \u6bd4\u7279\u8f6c\u6362\u6210 base64 \u4e4b\u540e\u957f\u5ea6\u66f4\u957f\u4e86\uff0c\u6709 8 \u4e2a(MTEx)\uff0c\u6309\u8fd9\u6837\u7b97\u8d77\u6765 base64 \u50cf\u662f 3bit <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : aneostart173 <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u4e8c\u8fdb\u5236\u5bf9\u6d41\u4f20\u8f93\u534f\u8bae\u4e0d\u592a\u53cb\u597d\uff0c\u56e0\u4e3a\u4ec0\u4e48\u7f16\u7801\u90fd\u53ef\u80fd\u7528\uff0c\u63a7\u5236\u5b57\u7b26\u51fa\u73b0\u7684\u6982\u7387\u5c31\u9ad8\u4e86\u3002\u6587\u672c\u4f20\u8f93\u5c31\u89c4\u5b9a\u4e86\u5927\u5bb6\u53ea\u80fd\u7528\u8fd9\u4e48\u4e9b\u5b57\u7b26\uff0c\u534f\u8bae\u5c31\u5bb9\u6613\u5b9a\uff0c\u5269\u4e0b\u7684\u5b57\u7b26\u7559\u7ed9\u4e0b\u4e00\u5c42\u5f53\u63a7\u5236\u5b57\u7b26\u7528\u3002 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : FreeEx <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u539f\u56e0\u5c31\u662f\u6709\u4e9b\u5b57\u7b26\u4f7f\u7528 ASCII \u65e0\u6cd5\u8868\u793a\uff0cBase64 \u5c31\u662f\u7528\u6765\u89e3\u51b3\u8fd9\u4e2a\u7684\u3002
    \u901a\u5e38\u4e00\u4e2a\u6570\u636e\u5bf9\u8c61\u53ef\u4ee5\u5e8f\u5217\u5316\u4e3a\u4e00\u4e2a byte \u6570\u7ec4\uff0c1byte=8bit\uff0cASCII \u7684\u8868\u793a\u8303\u56f4\u662f\u4ece 0000 0000 \u5230 0111 1110\uff0c\u5c40\u9650\u5728\u4e8e\u53ea\u80fd\u663e\u793a 26 \u4e2a\u57fa\u672c\u62c9\u4e01\u5b57\u6bcd\u3001\u963f\u62c9\u4f2f\u6570\u5b57\u548c\u82f1\u5f0f\u6807\u70b9\u7b26\u53f7\uff0c\u56e0\u6b64\u53ea\u80fd\u7528\u4e8e\u663e\u793a\u73b0\u4ee3\u7f8e\u56fd\u82f1\u8bed\u3002Base64 \u5219\u662f\u7528\u957f\u5ea6\u4e3a 64 \u7684\u7d22\u5f15\u8868\u6765\u5bf9\u5e94 6bit \u7684 00 0000 \u5230 11 1111\uff0c\u4e0d\u628a byte \u770b\u6210\u4e00\u4e2a\u6574\u4f53\uff0c\u800c\u662f\u62c6\u5f00 bit \u4e4b\u540e\u6309 6 \u4f4d\u4e00\u4e2a\u6765\u8868\u793a\uff0cbit \u603b\u957f\u5ea6\u4e0d\u80fd\u88ab 6 \u6574\u9664\u7684\u65f6\u5019\u5c31\u5728\u540e\u9762\u8865 0\uff0c\u8865 6 \u4e2a 0 \u7684\u65f6\u5019\u540e\u9762\u589e\u52a0\u4e00\u4e2a=\uff0c\u8865\u4e24\u4e2a 0 \u7684\u65f6\u5019\u589e\u52a0\u4e24\u4e2a=\uff0c\u8fd9\u6837\u5c31\u53ef\u4ee5\u7528\u6709\u9650\u7684\u5b57\u7b26\u6765\u8868\u793a\u5404\u79cd\u5404\u6837\u7684\u590d\u6742\u6570\u636e\u4e86\u3002 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : GM <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    @lmmortal <\/p>\n

    \u4f60\u641e\u9519\u4e86\uff0c\u4f60\u8bf4\u7684 FF \u90a3\u5df2\u7ecf\u662f\u4e8c\u8fdb\u5236\u4e86\uff0c\u4e0d\u53eb hex \u4e86\u3002<\/p>\n

    11111111 \u7684 hex \u662f 3131 3131 3131 3131\uff0c\u603b\u5171 16 \u4e2a\u5b57\u8282\uff0cbase64 \u662f MTExMTExMTEK\uff0c13 \u4e2a\u5b57\u8282 <\/p><\/div>\n<\/p><\/div>\n<\/li>\n

  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : wanguorui123 <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    1 \u3001\u90e8\u5206\u4e8c\u8fdb\u5236\u6570\u636e\uff08\u52a0\u5bc6\u3001\u538b\u7f29\u3001\u97f3\u9891\u3001\u56fe\u7247\u3001\u89c6\u9891\u7b49\u7b97\u6cd5\u5904\u7406\u540e\u7684\u4e8c\u8fdb\u5236\u6570\u636e\uff09\u65b9\u4fbf\u5b58\u50a8\u4e3a\u6587\u672c\u65b9\u4fbf\u590d\u5236\u7c98\u8d34\u3001\u5b58\u50a8\u3001\u4f20\u8f93
    2 \u3001\u5728\u90e8\u5206\u534f\u8bae\u91cc\u4e3a\u4e86\u517c\u5bb9\u534f\u8bae\u7684\u89e3\u6790\u89c4\u5219\u903c\u4e0d\u5f97\u5df2\u7528 Base64 \u6216 HEX \u6587\u672c\u8fdb\u884c\u7279\u6b8a\u7b26\u53f7\u7f16\u7801 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : SuperMild <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    @lmmortal hex \u5176\u5b9e\u662f Base16 \u7684\u522b\u79f0\uff0chex \u4e0d\u7b49\u540c\u4e8e 16 \u8fdb\u5236\u3002 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : nuk <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u54b3\uff0c\u56e0\u4e3a internet \u51fa\u73b0\u524d\uff0c\u7528\u7684 uucp \u7f51\u7edc\u554a\uff0c\u91cc\u9762\u4e00\u90e8\u5206 ASCII \u662f\u4f5c\u4e3a\u63a7\u5236\u5b57\u7b26\u4f7f\u7528\u7684
    \u4e0d\u8fc7\u6ca1\u6709\u9009 uuencode \u5927\u6982\u662f\u56e0\u4e3a\u6709\u7a7a\u683c\u5427\uff1f <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : shawndev <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    base64 \u4e0d\u662f\u53ea\u6709>=128 \u7684\u5b57\u7b26\u4e0d\u53ef\u663e\u793a\u3002\u6bd4\u5982 0x00 \u662f\u7ec8\u6b62\u7b26\u4e5f\u4e0d\u53ef\u663e\u793a\u3002 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : shawndev <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u6709\u4e9b\u573a\u666f\u4e0b\u9650\u5b9a\u5b57\u7b26\u6709\u7279\u6b8a\u542b\u4e49\uff0c\u6bd4\u5982 URL \u4e2d \/\u548c=\u6709\u7279\u6b8a\u7528\u9014\uff0c\u5206\u522b\u4ee3\u8868 path \u548c query\uff0c\u90a3\u4e48\u7f16\u7801\u540e\u7684 ascii \u5982\u679c\u6709\u8fd9\u4e9b\u503c\u5c31\u4f1a\u5f71\u54cd url \u7684\u89e3\u6790\u3002 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u4e3b<\/span> \u8cc7\u6df1\u5927\u4f6c : Chaox <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    @xx6412223 \u4e5f\u5c31\u662f\u8bf4 \u6bd4\u5982 \u5e94\u7528\u5c42\u7684\u6570\u636e\u5982\u679c\u8981\u7ed9\u4f20\u8f93\u5c42\uff0c\u4e0d\u8fc7\u4e0d\u8f6c\u6362\u6210 base64 \u7f16\u7801\uff0c\u6709\u4e9b\u6570\u636e\u6bd4\u5982\u6362\u884c\u7b49\u6ca1\u529e\u6cd5\u88ab\u6b63\u786e\u8bc6\u522b\u3002\u662f\u8fd9\u4e2a\u610f\u601d\u5417\uff1f <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u4e3b<\/span> \u8cc7\u6df1\u5927\u4f6c : Chaox <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    @shawndev \u90a3\u76f4\u63a5\u628a\u8fd9\u4e9b\u5b57\u7b26\u53d8\u4e3a\u4e8c\u8fdb\u5236\uff08 ASCII \uff09\u4e0d\u5c31\u4e0d\u4f1a\u5f71\u54cd\u4e86\u5417 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : shawndev <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    @Chaox \u4e0a\u9762\u6253\u9519\u4e86\uff0cascii \u4e0d\u662f\u53ea\u6709>=128 \u7684\u5b57\u7b26\u4e0d\u53ef\u663e\u793a\u3002\u4f60\u5982\u679c\u4e86\u89e3 utf8 \u7f16\u7801\u5c31\u4e0d\u4f1a\u95ee\u4e3a\u4ec0\u4e48\u4e0d\u7528 utf8 \u5bf9\u6570\u636e\u89e3\u7801\u5f62\u6210\u6587\u672c\uff0c\u56e0\u4e3a\u4e0d\u662f\u6240\u6709 bytes \u90fd\u80fd\u8f6c\u6210 utf8 string <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : kuro1 <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    btc \u8fd8\u7528 base58 \u5462\uff0c\u4e00\u5957\u7f16\u7801\u7f62\u4e86\uff08 ipfs \u6700\u8fd1\u8fd8\u7528 base32 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : shawndev <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u63a8\u8350\u4f60\u8bfb\u4e00\u4e0b\u6211\u7684\u4e24\u7bc7\u516c\u4f17\u53f7\u6587\u7ae0
    https:\/\/mp.weixin.qq.com\/s\/gZtUp8urhq5fivTkv8nfAQ
    https:\/\/mp.weixin.qq.com\/s\/u2bpRJEC6BNxRLNr5p3KwQ <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : lmmortal <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    @SuperMild \u8c22\u8c22
    @GM \u786e\u5b9e\u641e\u9519\u4e86\uff0c\u8c22\u8c22 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : imn1 <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u4e0d\u77e5\u9053\u8fd9\u53e5\u8bdd\u662f\u4f55\u65f6\u4f55\u5730\u770b\u5230\u7684
    \u5982\u679c\u8bed\u5883\u4e0d\u540c\uff0c\u8def\u7531\u8bbe\u5907\u6240\u6307\u7684\u53ef\u80fd\u4e5f\u4e0d\u540c\uff0c\u5982\u679c\u4e2d\u95f4\u6709\u4e2a\u8bbe\u5907\u662f\u6307\u8bed\u4e49\u9632\u706b\u5899\uff0c\u662f\u65e0\u6cd5\u4fdd\u8bc1\u4efb\u610f\u6570\u636e AB \u4e24\u5730\u4e00\u81f4\u7684\uff0c\u53ea\u80fd\u964d\u4f4e\u201c\u51fa\u9519\u7684\u53ef\u80fd\u6027\u201d <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : ggabc <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    base64 \u7684\u91cd\u8981\u610f\u4e49\u5c31\u662f\u628a\u5404\u79cd\u5b57\u7b26\u90fd\u7edf\u4e00\u7528 64 \u4e2a\u57fa\u7840\u5b57\u7b26\uff08\u5b9e\u9645\u5e76\u4e0d\u662f\u521a\u597d 64\uff0c\u522b\u7ea0\u7ed3\u8fd9\u4e2a\uff09\u8868\u793a\u4e86\uff0c\u7528\u6765\u7b80\u5316\u4f20\u8f93\u96be\u5ea6\uff0c\u4f20\u8f93\u5b8c\u6210\u540e\u8fd8\u539f\u56de\u53bb\u7528\u3002
    \u56fe\u7247\u53ef\u4ee5 base64\uff0c\u6c49\u5b57\u53ef\u4ee5 base64\uff0cascii \u5b57\u7b26\u4e5f\u4e0d\u51b2\u7a81\u7167\u6837\u53ef\u4ee5 base64 \u7f16\u7801\u89e3\u7801\u4e00\u4e0b <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : xiangyuecn <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    base64 \u4e4b\u540e \u8fd8\u53ef\u4ee5 base64\uff0c\u65e0\u9650\u5957\u5a03\uff0c\u6c14\u4e0d\u6c14\u4eba <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : hitmanx <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    https:\/\/stackoverflow.com\/questions\/3538021\/why-do-we-use-base64 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : no1xsyzy <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u6240\u4ee5\u8bf4
    0b11111111
    \u548c
    “11111111”
    \u8981\u597d\u597d\u533a\u5206\u554a\u2026\u2026 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u4e3b<\/span> \u8cc7\u6df1\u5927\u4f6c : Chaox <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    @t6attack \u7406\u89e3\u4e86\uff0c\u8c22\u8c22 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n","protected":false},"excerpt":{"rendered":"

    \u8bda\u5fc3\u8bf7\u6559\u5173\u4e8e base64 \u7684\u95ee\u9898…<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[],"tags":[],"_links":{"self":[{"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts\/186804"}],"collection":[{"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=186804"}],"version-history":[{"count":0,"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts\/186804\/revisions"}],"wp:attachment":[{"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=186804"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=186804"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=186804"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}