ahlam1399
04-13-2016, 02:40 AM
The USB Implementers Forum (USB-IF) today an**unced (http://www.businesswire.com/news/home/20160412005983/en/USB-3.0-Promoter-Group-Defines-Authentication-Protocol) the launch of the USB Type-C Authentication specification, a software protocol that will serve as a line of defense protecting USB-C products from **n-compliant USB-C cables that are potentially able to damage a device.
With the USB Type-C Authentication specification, computers and other devices with USB-C ports will be able to confirm the authenticity of a USB device or USB charger, verifying elements like certification status and power flow, along with ensuring ** malware is present.
http://cdn.macrumors.com/article-new/2016/01/Retina-MacBook-USB-C-800x211.jpgUsing this protocol, host systems can confirm the authenticity of a USB device or USB charger, including such product aspects as the descriptors/capabilities and certification status. All of this happens right at the moment a wired connection is made - before inappropriate power or data can be transferred.
USB Type-C Authentication empowers host systems to protect against **n-compliant USB Chargers and to mitigate risks from maliciously embedded hardware or software in USB devices attempting to exploit a USB connectionThe USB Type-C Authentication specification comes after some **n-compliant USB-C cables were able to damage electronic devices. Google engineer Benson Leung (https://plus.google.com/u/0/+BensonLeung/posts/LH4PPgVrKVN) spent weeks testing USB-C cables sold by Amazon after a third-party cable he bought destroyed his Chromebook Pixel, making it his mission to highlight the risks of **n-compliant cables.
Leung's work led Amazon to ban (http://www.macrumors.com/2016/03/30/amazon-bans-sale-of-potentially-dangerous-usb-c-cables/) third-party retailers from offering USB-C cables that do **t adhere to the standard specifications issued by the USB-IF, and it's also led to the creation of the protections an**unced today.Key characteristics of the USB Type-CTM Authentication solution include:
- A standard protocol for authenticating certified USB Type-CTM Chargers, devices, cables and power sources
- Support for authenticating over either USB data bus or USB Power Delivery communications channels
- Products that use the authentication protocol retain control over the security policies to be implemented and enforced
- Relies on 128-bit security for all cryptographic methods
- Specification references existing internationally-accepted cryptographic methods for certificate format, digital signing, hash and random number generationApple began using USB-C with the Retina MacBook (http://www.macrumors.com/roundup/retina-macbook-air/), choosing the standard because it allows both data and power transfer through a single connector. USB-C is appealing for its universality, but because USB-C cables can transfer more power than traditional USB connectors, **n-compliant or faulty equipment can damage electronic devices by providing too much power.
The Retina MacBook already has safeguards (https://support.apple.com/en-ae/HT204360) built in to protect it from **n-compliant cables, but the new USB Type-C Authentication feature will offer a**ther layer of protection should Apple choose to implement it. Current machines will only charge from third-party USB-C power adapters if they comply with the USB Power Delivery specification, and if too much power is detected, the USB-C ports on the MacBook will shut down.
While the Retina MacBook is the only product that currently offers USB-C functionality, Apple may choose to offer USB-C ports in additional machines in upcoming updates scheduled to take place across 2016.
Discuss this article (http://forums.macrumors.com/threads/usb-type-c-authentication-specification-an**unced.1967351/) in our forums
http://feeds.feedburner.com/~ff/MacRumors-All?d=6W8y8wAjSf4 (http://feeds.macrumors.com/~ff/MacRumors-All?a=4XfC1znJKQ0:PIDf4PdbPXc:6W8y8wAjSf4) http://feeds.feedburner.com/~ff/MacRumors-All?d=qj6IDK7rITs (http://feeds.macrumors.com/~ff/MacRumors-All?a=4XfC1znJKQ0:PIDf4PdbPXc:qj6IDK7rITs)
http://feeds.feedburner.com/~r/MacRumors-All/~4/4XfC1znJKQ0
أكثر... (http://www.macrumors.com/2016/04/12/usb-type-c-authentication-specification-an**unced/)
With the USB Type-C Authentication specification, computers and other devices with USB-C ports will be able to confirm the authenticity of a USB device or USB charger, verifying elements like certification status and power flow, along with ensuring ** malware is present.
http://cdn.macrumors.com/article-new/2016/01/Retina-MacBook-USB-C-800x211.jpgUsing this protocol, host systems can confirm the authenticity of a USB device or USB charger, including such product aspects as the descriptors/capabilities and certification status. All of this happens right at the moment a wired connection is made - before inappropriate power or data can be transferred.
USB Type-C Authentication empowers host systems to protect against **n-compliant USB Chargers and to mitigate risks from maliciously embedded hardware or software in USB devices attempting to exploit a USB connectionThe USB Type-C Authentication specification comes after some **n-compliant USB-C cables were able to damage electronic devices. Google engineer Benson Leung (https://plus.google.com/u/0/+BensonLeung/posts/LH4PPgVrKVN) spent weeks testing USB-C cables sold by Amazon after a third-party cable he bought destroyed his Chromebook Pixel, making it his mission to highlight the risks of **n-compliant cables.
Leung's work led Amazon to ban (http://www.macrumors.com/2016/03/30/amazon-bans-sale-of-potentially-dangerous-usb-c-cables/) third-party retailers from offering USB-C cables that do **t adhere to the standard specifications issued by the USB-IF, and it's also led to the creation of the protections an**unced today.Key characteristics of the USB Type-CTM Authentication solution include:
- A standard protocol for authenticating certified USB Type-CTM Chargers, devices, cables and power sources
- Support for authenticating over either USB data bus or USB Power Delivery communications channels
- Products that use the authentication protocol retain control over the security policies to be implemented and enforced
- Relies on 128-bit security for all cryptographic methods
- Specification references existing internationally-accepted cryptographic methods for certificate format, digital signing, hash and random number generationApple began using USB-C with the Retina MacBook (http://www.macrumors.com/roundup/retina-macbook-air/), choosing the standard because it allows both data and power transfer through a single connector. USB-C is appealing for its universality, but because USB-C cables can transfer more power than traditional USB connectors, **n-compliant or faulty equipment can damage electronic devices by providing too much power.
The Retina MacBook already has safeguards (https://support.apple.com/en-ae/HT204360) built in to protect it from **n-compliant cables, but the new USB Type-C Authentication feature will offer a**ther layer of protection should Apple choose to implement it. Current machines will only charge from third-party USB-C power adapters if they comply with the USB Power Delivery specification, and if too much power is detected, the USB-C ports on the MacBook will shut down.
While the Retina MacBook is the only product that currently offers USB-C functionality, Apple may choose to offer USB-C ports in additional machines in upcoming updates scheduled to take place across 2016.
Discuss this article (http://forums.macrumors.com/threads/usb-type-c-authentication-specification-an**unced.1967351/) in our forums
http://feeds.feedburner.com/~ff/MacRumors-All?d=6W8y8wAjSf4 (http://feeds.macrumors.com/~ff/MacRumors-All?a=4XfC1znJKQ0:PIDf4PdbPXc:6W8y8wAjSf4) http://feeds.feedburner.com/~ff/MacRumors-All?d=qj6IDK7rITs (http://feeds.macrumors.com/~ff/MacRumors-All?a=4XfC1znJKQ0:PIDf4PdbPXc:qj6IDK7rITs)
http://feeds.feedburner.com/~r/MacRumors-All/~4/4XfC1znJKQ0
أكثر... (http://www.macrumors.com/2016/04/12/usb-type-c-authentication-specification-an**unced/)