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  2. Security and privacy of iOS - Wikipedia

    en.wikipedia.org/wiki/Security_and_Privacy_of_iOS

    Starting with A9 devices, the unique ID is generated by the Secure Enclave's random number generator and is never exposed outside of the device. This identifier is used to create a temporary key that encrypts the memory in this portion of the system. The Secure Enclave also contains an anti-replay counter to prevent brute force attacks. [1]

  3. System Locked Pre-installation - Wikipedia

    en.wikipedia.org/wiki/System_Locked_Pre-installation

    Operating systems that use SLP 1.0 check for a particular text-string in a computer's BIOS upon booting. If the text string does not match the information stored in the particular installation's OEM BIOS files, the system prompts the user to activate their copy as normal. SLP 2.0 to SLP 2.7 work in a similar manner.

  4. Hardware security module - Wikipedia

    en.wikipedia.org/wiki/Hardware_security_module

    An HSM in PCIe format. A hardware security module (HSM) is a physical computing device that safeguards and manages secrets (most importantly digital keys), and performs encryption and decryption functions for digital signatures, strong authentication and other cryptographic functions. [1]

  5. How to disable Secure Boot on your PC when you need to ... - AOL

    www.aol.com/news/disable-secure-boot-pc-install...

    You can disable Secure Boot by restarting your PC and opening the Unified Extensible Firmware Interface ... 24/7 Help. For premium support please call: 800-290-4726 more ways to reach us.

  6. UEFI - Wikipedia

    en.wikipedia.org/wiki/UEFI

    When Secure Boot is enabled, it is initially placed in "setup" mode, which allows a public key known as the "platform key" (PK) to be written to the firmware. Once the key is written, Secure Boot enters "User" mode, where only UEFI drivers and OS boot loaders signed with the platform key can be loaded by the firmware.

  7. Chain of trust - Wikipedia

    en.wikipedia.org/wiki/Chain_of_trust

    In computer security, digital certificates are verified using a chain of trust. [1] The trust anchor for the digital certificate is the root certificate authority (CA).. The certificate hierarchy is a structure of certificates that allows individuals to verify the validity of a certificate's issuer.

  8. Boot ROM - Wikipedia

    en.wikipedia.org/wiki/Boot_ROM

    Some system on a chip boot ROMs also support a Public key infrastructure and the hash of the certificate authority (CA) public key is encoded in the electronic fuses instead, and the boot ROM will then be able to check if the bootloader is signed by an authorized key by verifying that key with the CA public key (whose hash is encoded in the ...

  9. Booting process of Android devices - Wikipedia

    en.wikipedia.org/wiki/Booting_process_of_Android...

    The Primary Bootloader (PBL), which is stored in the Boot ROM [3] is the first stage of the boot process. This code is written by the chipset manufacturer. [4] The PBL verifies the authenticity of the next stage. On Samsung smartphones, the Samsung Secure Boot Key (SSBK) is used by the boot ROM to verify the next stages. [5]