Samy Kamkar: PoisonTap - exploiting locked computers over USB
PoisonTap - siphons cookies, exposes internal router & installs web backdoor on locked computers Created by @SamyKamkar || https://samy.pl When PoisonTap (Raspberry Pi Zero & Node.js) is plugged into a locked/password protected computer, it: emulates an Ethernet device over USB (or Thunderbolt) hijacks all Internet traffic from the machine (despite being a low priority/unknown network interface) s
Swift 3 世代ã®æŽ’他制御 - Qiita
å‰å›žã“ã‚“ãªè¨˜äº‹ã‚’書ãã¾ã—ãŸã€‚ Swift 世代ã®æŽ’他制御 http://qiita.com/codelynx/items/0ecd28c8a7da0a0e42b5 ã“ã®è¨˜äº‹ã§ã¯ã€ä»¥ä¸‹ã®ã‚ˆã†ãªæŽ’他制御ã®æ›¸ã方を紹介ã—ã¾ã—ãŸã€‚NSLock を使ãˆã°ã€è¤‡æ•°ã®ã‚¹ãƒ¬ãƒƒãƒ‰ã‹ã‚‰ã‚¯ãƒªãƒ†ã‚£ã‚«ãƒ«ãªãƒ‡ãƒ¼ã‚¿ã®åŒæ™‚更新を防ã’ã‚‹ã¨ã„ã†è©±ã§ã—ãŸã€‚具体的ã«ã¯ã€NSLock ã‚’ lock() ã—ã¦ã‹ã‚‰ unlock() ã™ã‚‹ã¾ã§ã¯ã€ä»–ã®ã‚¹ãƒ¬ãƒƒãƒ‰ã¯å¾…ãŸã•ã‚Œã‚‹ã®ã§ã€atomicity ãŒä¿è¨¼ã§ãã‚‹ã¨ã„ã†è©±ã§ã™ã€‚ã—ã‹ã‚‚ã€defer 文を使ãˆã°ã€ã‚¹ã‚³ãƒ¼ãƒ—を抜ã‘ãŸæ™‚ã«ã€ç¢ºå®Ÿã«å®Ÿè¡Œã•ã‚Œã‚‹ã®ã§ã€é€”ä¸ã§ã„ãã¤ã‚‚ã® return æ–‡ãŒã‚るよã†ãªãƒ‘ターンã§ã‚‚ã€å®Ÿè¡Œã—忘れãŒãªãã€å®‰å…¨ã¨ã„ã†äº‹ã§ã™ã€‚ class MyObject { let lock = NSLock() func update1() { self.lock.lock() def
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