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Tag Archives: android
Google 推出的 PhotoScan，利用多張照片去除反光
Google 推出的 PhotoScan (Android、iOS) 可以利用多次不同角度的拍攝來消除反光：「PhotoScan: Taking Glare-Free Pictures of Pictures」。 把這五張照片轉成一張處理過的照片：
GitHub 決定在 2018/02/01 停用不安全的 HTTPS/SSH 演算法
在「Discontinue support for weak cryptographic standards」這邊訂了日期，2018/02/01 將會關閉： HTTPS 的 TLSv1 與 TLSv1.1 SSH 的 diffie-hellman-group1-sha1 SSH 的 diffie-hellman-group14-sha1 看起來最苦的應該是 Android 4.3 以及更早的版本，以現在的官方數字來看還有 13%+ (Dashboards)，這些版本內建的瀏覽器不支援 TLSv1.2，不過另外裝 browser 就還能過...
Google Play Store 將支援 Brotli 壓縮
在「Intern Impact: Brotli compression for Play Store app downloads」這邊介紹了 Google Play Store 引入 Brotli 的情況。 選擇 Brotli 除了是 Google 自家研發出來的東西以外，另外是考量到 Brotli 的壓縮與解壓縮速 (尤其是後者) 不會增加太多，卻可以多出不少壓縮率。維基百科這邊說明的是文字的部份： Replacing deflate with brotli typically gives an increase of 20% in compression density for text files, … Continue reading
從 CyanogenMod 變成 Lineage OS
在好幾個地方看到的消息，隨便挑一個：「Cyanogen shuts down CyanogenMod; CM forks into Lineage」，官方公告的存檔在「A fork in the road」這邊。 也就是說，因為 CyanogenMod 收掉，社群將會 fork 轉移到 Lineage OS 上。 這樣得花時間研究看看 Lineage OS 有沒有之前的能量了...
Posted in Computer, Murmuring, Software
Tagged android, cyanogen, cyanogenmod, fork, lineage, os
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在手機裡面放木馬後故意讓手機被偷走的紀錄片...
在手機裡面裝木馬後故意讓別人偷走，然後觀察小偷的行為並且拍成紀錄片：「Student Lets Thief Steal His Phone, Spies On Him For Weeks To Make This Documentary」。 影片已經有人翻譯完，有中文字幕可以開起來看： 裡面用的木馬 (防盜軟體) 是 Cerberus。
Posted in Computer, Hardware, Movie, Murmuring, Network, Recreation, Security, Software, Telephone
Tagged android, app, cerberus, documentary, phone, smart, smartphone, spy, thief
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Google 再次改善 Android 的 APK 更新，讓下載的量更小
Google 的人再次更新了演算法，將下載的量再次減少，從本來的 47% 降到 65%：「Saving Data: Reducing the size of App Updates by 65%」。 今年七月的時候，更新演算法導入了 bsdiff，使得本來要抓整包 APK 的量，變成抓 diff 的部份，這使得下載的流量降了 47%：「Improvements for smaller app downloads on Google Play」。 Using bsdiff, we were able to reduce the size of app updates … Continue reading
Android 上透過 DAC (i.e. 耳機或是喇叭) 再做 ADC (i.e. 麥克風) 的傳輸
看到「Quiet for Android - TCP over sound」這個給 Android 用的專案，就是以前的撥接數據機嘛... 在直接拉線對連時連速度都還蠻像的： Quiet's provided audible mode transfers at approximately 7kbps. In cases where two devices are connected over a cable (via 3.5mm jack) it can run in cable mode, which transfers at … Continue reading
對某些應用程式隱藏 Android Root 狀態的 suhide
看到 suhide 這個工具：「Chainfire's SuHide — Now You Can Hide Your Android Root Status On Per-App Basis」，原報導出自「Experimental suhide Mod for SuperSU Hides su Binary from Applications」。 第一個應該是重點，針對特定應用程式隱藏： - Hides root on a per-app base, no need to globally disable root - … Continue reading
拿 Twitter 當作 Botnet 橋樑的惡意軟體
在「Twitoor First Android Twitter-based Botnet」這邊看到的消息，原報導在「First Twitter-controlled Android botnet discovered」。 相較於 IRC 控制來得難以被偵測。因為 IRC 的特性比較好抓 (無論是 Protocol 或是 IP address)，而 Twitter 卻是一般人就常常會上的網站 (而且是 HTTPS)，暫時沒想到太簡單的方法從網路層面偵測... 其實同樣道理可以用其他大的平台做 (像是 GitHub 也是可能的平台)，不知道網路層上要怎麼防比較有效...