How encryption for iPhone works and why FBI can not decrypt it @apple @FBI @TheJusticeDept скачать в хорошем качестве

How encryption for iPhone works and why FBI can not decrypt it @apple @FBI @TheJusticeDept

How encryption for iPhone works and why FBI can not decrypt it @apple @FBI @TheJusticeDept Step 1. What is Encryption? Step 2. Symmetric-key encryption Step 3. Same key decrypts message Step 4. Asymmetric key encryption Step 5. Certification authority Step 6. Apple uses a combination of passcode and hardway key to encrypt data Step 7. There are obstacles that stand in the way of guessing the passcode Step 8. FBI wants unlimited way to do passcode guesses Step 9. Encryption is at the heart of this debate 1. What is Encryption? Encryption is the process of encoding messages or information in such a way that only authorized parties can read it. Encryption does not of itself prevent interception, but denies the message content to the interceptor 2. Symmetric-key encryption In symmetric-key encryption the encryption and decryption keys are the same. Communicating parties must have the same key before they can achieve secure communication. 3. Same key decrypts message In symmetric-key encryption the encryption and decryption keys are the same. 4. Asymmetric key encryption In an asymmetric key encryption scheme, anyone can encrypt messages using the public key, but only the holder of the paired private key can decrypt. Security depends on the secrecy of the private key. 5. Certification authority A certification authority is a trusted third party that can issue public and private keys, thus certifying public keys. It also works as a depository to store key chain and enforce the trust factor. 6. Apple uses a combination of passcode and hardway key to encrypt data In Apple iOS devices, nearly all important files are encrypted with a combination of the phone passcode and a hardware key embedded in the device at manufacture time. 7. There are obstacles that stand in the way of guessing the passcode Apple iOS introduces a delay after every incorrect PIN entry,  a delay obstacle that stands in the way of guessing the passcode on  an iPhone. It can take years to guess passcode on a latest iPhone. 8. FBI wants unlimited way to do passcode guesses FBI wants to decipher information in the iPhone of San Bernardino's attacker. Apple has vowed to resist FBI demand to crack iPhone linked to San Bernardino attacks. Apple does not want to build a backdoor to the iPhone. 9. Encryption is at the heart of this debate This completes our guided tour of encryption. Create your own Guided tours using GuideMe.IO