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Tag Archives: everywhere
CloudFlare 把 HTTPS Everywhere 的清單拿到 CDN 上用所推出的產品...
這個產品就如同標題所說的方式而已，做起來不難，只是一直沒人做就是了：「How we brought HTTPS Everywhere to the cloud (part 1)」。 傳統的作法是直接硬幹下去換掉，或是用 header 讓瀏覽器主動轉過去： A naive way to do this would be to just rewrite http:// links to https:// or let browsers do that with Upgrade-Insecure-Requests directive. 但這有必須有兩個假設成立才可以： Each single HTTP … Continue reading
Google 的 www.google.com 要上 HSTS 了
Google 宣佈 www.google.com 要上 HSTS 了：「Bringing HSTS to www.google.com」。 雖然都已經使用 EFF 的 HTTPS Everywhere 在跑確保 HTTPS，但這個進展還是很重要，可以讓一般使用者受到保護... Google 的切換計畫是會逐步增加 HSTS 的 max-age，確保中間出問題時造成的衝擊。一開始只會設一天，然後會逐步增加，最後增加到一年： In the immediate term, we’re focused on increasing the duration that the header is active (‘max-age’). We've initially set … Continue reading
利用 HSTS 資訊得知網站紀錄的 sniffly
看到「sniffly」這個工具，可以利用 HSTS 資訊檢測逛過哪些網站，程式碼在「diracdeltas/sniffly」這邊可以找到： Sniffly is an attack that abuses HTTP Strict Transport Security and Content Security Policy to allow arbitrary websites to sniff a user's browsing history. It has been tested in Firefox and Chrome. 測試網站則可以在這邊看到，作者拿 Alexa 上的資料網站來掃，所以熱門網站應該都會被放進去... 主要是利用 HSTS … Continue reading
Wikimedia (包括維基百科) 推出 HSTS (強制使用 HTTPS)
Wikimeda 宣佈所有旗下的網站都會啟用 HTTPS 與 HSTS：「Securing access to Wikimedia sites with HTTPS」。 在這之前，使用者可以用 EFF 的 HTTPS Everywhere 強制使用 HTTPS (在 Firefox 與 Google Chrome 都有上架)，而這次則是全面強制使用了。 愈來愈多人使用 HTTPS 來保護隱私後 (而不僅僅是保護機密資料)，接下來的問題就是要想辦法在 DNS 上保護了。也就是可以利用 DNS query pattern 知道你在看哪種 (或是哪一個) 頁面。