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Authy 导出密钥到其他 2FA 工具

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  •   pupboss · 2021-09-09 13:14:20 +08:00 · 1836 次点击
    这是一个创建于 931 天前的主题,其中的信息可能已经有所发展或是发生改变。

    有些网站不用标准的 otpauth + 密钥和二维码的实现,比如 SendGrid,他要求用户绑定 Authy,又不支持导出密钥到其他工具,因为绑定过程只需要给一个手机号,自动绑定到同账户的 Authy,所以这才有了下面的方法。不过有几点要注意的就是并不是所有 2FA 工具都支持转换过来的密钥,因为 Authy 有时候是 7 位的随机数字,再就是就算导入到其他软件,Authy 里面也别删,避免它和要验证的网站联动删除,导致账户无法登录。

    大概原理就是 Electron 有一个 debug 模式,在 app 运行的时候加入一个 --remote-debugging-port 参数,即可调用 Chrome 的控制台然后做任何想做的事情,而 Authy 桌面端正是用 Electron 写的。具体破解办法可以参考最后的代码,如果想了解更多信息也可以查看原文:https://www.pupboss.com/exporting-authy-passwords-to-other-authenticators/

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t,e,i,n,s=this.buffer,r=this._version,o=this.width;if(r>6)for(t=d.BLOCK[r-7],e=17,i=0;i<6;i++)for(n=0;n<3;n++,e--)1&(e>11?r>>e-12:t>>e)?(s[5-i+o*(2-n+o-11)]=1,s[2-n+o-11+o*(5-i)]=1):(this._setMask(5-i,2-n+o-11),this._setMask(2-n+o-11,5-i))},_isMasked:function(t,e){var i=v._getMaskBit(t,e);return 1===this._mask[i]},_pack:function(){var t,e,i,n=1,s=1,r=this.width,o=r-1,a=r-1,h=(this._dataBlock+this._eccBlock)*(this._neccBlock1+this._neccBlock2)+this._neccBlock2;for(e=0;e<h;e++)for(t=this._stringBuffer[e],i=0;i<8;i++,t<<=1){128&t&&(this.buffer[o+r*a]=1);do{s?o--:(o++,n?0!==a?a--:(n=!n,6===(o-=2)&&(o--,a=9)):a!==r-1?a++:(n=!n,6===(o-=2)&&(o--,a-=8))),s=!s}while(this._isMasked(o,a))}},_reverseMask:function(){var t,e,i=this.width;for(t=0;t<9;t++)this._setMask(t,8);for(t=0;t<8;t++)this._setMask(t+i-8,8),this._setMask(8,t);for(e=0;e<7;e++)this._setMask(8,e+i-7)},_setMask:function(t,e){var i=v._getMaskBit(t,e);this._mask[i]=1},_syncMask:function(){var t,e,i=this.width;for(e=0;e<i;e++)for(t=0;t<=e;t++)this.buffer[t+i*e]&&this._setMask(t,e)}},{_createArray:function(t){var e,i=[];for(e=0;e<t;e++)i[e]=0;return i},_getMaskBit:function(t,e){var i;return t>e&&(i=t,t=e,e=i),i=e,i+=e*e,i>>=1,i+=t},_modN:function(t){for(;t>=255;)t=((t-=255)>>8)+(255&t);return t},N1:3,N2:3,N3:40,N4:10}),p=v,m=f.extend({draw:function(){this.element.src=this.qrious.toDataURL()},reset:function(){this.element.src=""},resize:function(){var t=this.element;t.width=t.height=this.qrious.size}}),g=h.extend(function(t,e,i,n){this.name=t,this.modifiable=Boolean(e),this.defaultValue=i,this._valueTransformer=n},{transform:function(t){var e=this._valueTransformer;return"function"==typeof e?e(t,this):t}}),k=h.extend(null,{abs:function(t){return null!=t?Math.abs(t):null},hasOwn:function(t,e){return Object.prototype.hasOwnProperty.call(t,e)},noop:function(){},toUpperCase:function(t){return null!=t?t.toUpperCase():null}}),w=h.extend(function(t){this.options={},t.forEach(function(t){this.options[t.name]=t},this)},{exists:function(t){return null!=this.options[t]},get:function(t,e){return w._get(this.options[t],e)},getAll:function(t){var e,i=this.options,n={};for(e in i)k.hasOwn(i,e)&&(n[e]=w._get(i[e],t));return n},init:function(t,e,i){"function"!=typeof i&&(i=k.noop);var n,s;for(n in this.options)k.hasOwn(this.options,n)&&(s=this.options[n],w._set(s,s.defaultValue,e),w._createAccessor(s,e,i));this._setAll(t,e,!0)},set:function(t,e,i){return this._set(t,e,i)},setAll:function(t,e){return this._setAll(t,e)},_set:function(t,e,i,n){var s=this.options[t];if(!s)throw new Error("Invalid option: "+t);if(!s.modifiable&&!n)throw new Error("Option cannot be modified: "+t);return w._set(s,e,i)},_setAll:function(t,e,i){if(!t)return!1;var n,s=!1;for(n in t)k.hasOwn(t,n)&&this._set(n,t[n],e,i)&&(s=!0);return s}},{_createAccessor:function(t,e,i){var n={get:function(){return w._get(t,e)}};t.modifiable&&(n.set=function(n){w._set(t,n,e)&&i(n,t)}),Object.defineProperty(e,t.name,n)},_get:function(t,e){return e["_"+t.name]},_set:function(t,e,i){var n="_"+t.name,s=i[n],r=t.transform(null!=e?e:t.defaultValue);return i[n]=r,r!==s}}),M=w,b=h.extend(function(){this._services={}},{getService:function(t){var e=this._services[t];if(!e)throw new Error("Service is not being managed with name: "+t);return e},setService:function(t,e){if(this._services[t])throw new Error("Service is already managed with name: "+t);e&&(this._services[t]=e)}}),B=new M([new g("background",!0,"white"),new g("backgroundAlpha",!0,1,k.abs),new g("element"),new g("foreground",!0,"black"),new g("foregroundAlpha",!0,1,k.abs),new g("level",!0,"L",k.toUpperCase),new g("mime",!0,"image/png"),new g("padding",!0,null,k.abs),new g("size",!0,100,k.abs),new g("value",!0,"")]),y=new b,O=h.extend(function(t){B.init(t,this,this.update.bind(this));var e=B.get("element",this),i=y.getService("element"),n=e&&i.isCanvas(e)?e:i.createCanvas(),s=e&&i.isImage(e)?e:i.createImage();this._canvasRenderer=new c(this,n,!0),this._imageRenderer=new m(this,s,s===e),this.update()},{get:function(){return B.getAll(this)},set:function(t){B.setAll(t,this)&&this.update()},toDataURL:function(t){return this.canvas.toDataURL(t||this.mime)},update:function(){var t=new p({level:this.level,value:this.value});this._canvasRenderer.render(t),this._imageRenderer.render(t)}},{use:function(t){y.setService(t.getName(),t)}});Object.defineProperties(O.prototype,{canvas:{get:function(){return this._canvasRenderer.getElement()}},image:{get:function(){return this._imageRenderer.getElement()}}});var A=O,L=h.extend({getName:function(){}}).extend({createCanvas:function(){},createImage:function(){},getName:function(){return"element"},isCanvas:function(t){},isImage:function(t){}}).extend({createCanvas:function(){return document.createElement("canvas")},createImage:function(){return document.createElement("img")},isCanvas:function(t){return t instanceof HTMLCanvasElement},isImage:function(t){return t instanceof HTMLImageElement}});return A.use(new L),A});
    
    function hex_to_b32(hex) { let alphabet = "ABCDEFGHIJKLMNOPQRSTUVWXYZ234567"; let bytes = []; for (let i = 0; i < hex.length; i += 2) { bytes.push(parseInt(hex.substr(i, 2), 16)); } let bits = 0; let value = 0; let output = ''; for (let i = 0; i < bytes.length; i++) { value = (value << 8) | bytes[i]; bits += 8; while (bits >= 5) { output += alphabet[(value >>> (bits - 5)) & 31]; bits -= 5; } } if (bits > 0) { output += alphabet[(value << (5 - bits)) & 31]; } return output; }
    
    function console_image(url, size) { console.log("%c+", "font-size: 1px; padding: " + Math.floor(size / 2) + "px " + Math.floor(size / 2) + "px; line-height: " + size + "px; background: url(" + url + "); color: transparent;"); }
    
    (function(console) { console.save = function(data, filename) { if (!data) { console.error('Console.save: No data'); return; } if (typeof data === "object") { data = JSON.stringify(data, undefined, 4) } var blob = new Blob([data], {type: 'text/json'}), e = document.createEvent('MouseEvents'), a = document.createElement('a'); a.download = filename; a.href = window.URL.createObjectURL(blob); a.dataset.downloadurl =  ['text/json', a.download, a.href].join(':'); e.initMouseEvent('click', true, false, window, 0, 0, 0, 0, 0, false, false, false, false, 0, null); a.dispatchEvent(e); } })(console);
    
    console.warn("Here's your Authy tokens:");
    var data = appManager.getModel().map(function(i) {
      var secret = (i.markedForDeletion === false ? i.decryptedSeed : hex_to_b32(i.secretSeed));
      var period = (i.digits === 7 ? 10 : 30);
      var totp_uri = `otpauth://totp/${encodeURIComponent(i.name)}?secret=${secret}&digits=${i.digits}&period=${period}`;
      console.group(i.name); console.log('TOTP secret:', secret); console.log('TOTP URI:', totp_uri); var qr_size = 250; var url = (new QRious({value: totp_uri, size: qr_size})).toDataURL(); console_image(url, qr_size); console.groupEnd();
      return {name: i.name, secret: secret, uri: totp_uri};
    });
    
    14 条回复    2021-09-11 03:21:59 +08:00
    zpfhbyx
        1
    zpfhbyx  
       2021-09-09 13:52:40 +08:00
    SimonOne
        2
    SimonOne  
       2021-09-09 14:05:21 +08:00
    看其他的 2FA 工具支不支持 uri 的 digits=这个参数,很多都默认 digits=4,导不进去
    SimonOne
        3
    SimonOne  
       2021-09-09 14:06:05 +08:00
    @SimonOne #2 补充:或者导进去了,码按 4 位给的,最后也用不了
    JinTianYi456
        4
    JinTianYi456  
       2021-09-09 14:07:27 +08:00
    pupboss
        5
    pupboss  
    OP
       2021-09-09 14:34:48 +08:00
    @zpfhbyx 这个太狠了,直接模拟登陆

    @SimonOne 对,很多 2FA 工具都有类似问题,甚至有的工具不同平台还不一样,比如 1Password iOS 可以,windows 不行,导出来还不能用那就只能认了....

    @JinTianYi456 插件应该也是手机号注册登录的,所以你直接下载个桌面端,再用正文里面的办法就可以
    Cavolo
        6
    Cavolo  
       2021-09-09 14:49:42 +08:00 via iPhone
    目前在用的就 Pibterest 和 termius 强制只能使用 Authy 验证,其他网站没碰到不支持标准 totp 的
    Cavolo
        7
    Cavolo  
       2021-09-09 14:54:42 +08:00 via iPhone
    @Cavolo Pinterest,今天怎么…
    pupboss
        8
    pupboss  
    OP
       2021-09-09 15:04:25 +08:00
    @Cavolo 哈哈谁没个手滑的时候,SendGrid 是强制用 Authy,而且不绑定 2FA 不让登录
    chanssl
        9
    chanssl  
       2021-09-09 16:05:30 +08:00
    github 有个基于 GO 的库,可以导出 token,去年把 token 导出来统一存放到密码管理软件了。
    仓库: https://github.com/alexzorin/authy
    chanssl
        10
    chanssl  
       2021-09-09 16:07:26 +08:00
    噢,一楼已经有人回复了,请忽略。
    pupboss
        11
    pupboss  
    OP
       2021-09-09 16:23:25 +08:00
    @chanssl :D v 站是真藏龙卧虎,什么奇技淫巧都有人知道
    Cavolo
        12
    Cavolo  
       2021-09-09 17:01:47 +08:00 via iPhone
    @pupboss 强制 Authy 是真难受,之前就用 1 楼的项目导出 key 后导入 1password 了。战网也能放到 1password 里,目前就 steam 好像除了 keepass 有解其他都没办法。
    tinkerer
        13
    tinkerer  
       2021-09-10 16:29:58 +08:00
    二维码显示这个功能我目前不需要,所以我直接用下面这段了,重点是 appManager.getModel()

    ```
    function hex_to_b32(hex) {
    let alphabet = "ABCDEFGHIJKLMNOPQRSTUVWXYZ234567";
    let bytes = [];
    for (let i = 0; i < hex.length; i += 2) {
    bytes.push(parseInt(hex.substr(i, 2), 16));
    }
    let bits = 0;
    let value = 0;
    let output = "";
    for (let i = 0; i < bytes.length; i++) {
    value = (value << 8) | bytes[i];
    bits += 8;
    while (bits >= 5) {
    output += alphabet[(value >>> (bits - 5)) & 31];
    bits -= 5;
    }
    }
    if (bits > 0) {
    output += alphabet[(value << (5 - bits)) & 31];
    }
    return output;
    }

    console.warn("Here's your Authy tokens:");
    var data = appManager.getModel().map(function (i) {
    var secret =
    i.markedForDeletion === false ? i.decryptedSeed : hex_to_b32(i.secretSeed);
    var period = i.digits === 7 ? 10 : 30;
    var totp_uri = `otpauth://totp/${encodeURIComponent(
    i.name
    )}?secret=${secret}&digits=${i.digits}&period=${period}`;
    console.group(i.name);
    console.log("TOTP secret:", secret);
    console.log("TOTP URI:", totp_uri);
    console.groupEnd();
    return { name: i.name, secret: secret, uri: totp_uri };
    });
    ```
    Greatshu
        14
    Greatshu  
       2021-09-11 03:21:59 +08:00
    安卓手机取得 root 权限可以用 Aegis 导入 Authy 的 token
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