User:Vayamevabhukta/New ieee 1667 subpage
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What is IEEE 1667?[edit]
IEEE 1667™ is a series of standards published and maintained by the IEEE that describes various methods for authenticating or authorizing storage devices such as USB flash drives when they are inserted into a computer. The protocol is defined in a manner that is platform independent with regard to host operating system. The storage device transport interface is layered to hide transport details from the host interface.
IEEE 1667 provides
- a platform independent communications pathway from a host to a storage device.
- Communication is always originated by the host.
- The device always provides responses to host requests.
- a set of independent service providers, called 'silos'
- Each silo provides services to the host.
- Transport Independent Discovery
History of IEEE 1667 Standards[edit]
| Publication |
|---|
| IEEE 1667-2006 |
| IEEE 1667-2009 |
| IEEE 1667-2015 |
| IEEE 1667-2018 |
IEEE 1667 Silos[edit]
| IEEE 1667 Version | |||||
|---|---|---|---|---|---|
| Silo | Description | 2006 | 2009 | 2015 | 2018 |
| Probe Silo | Discovery of IEEE 1667 properties | Yes | Yes | Yes | Yes |
| Certificate Authentication Silo(CAS) | Certificate-based Authentication and Authorization | Yes | Yes | No | No |
| External Silo | Varies | No | Yes | Yes | Yes |
| TCG Storage Silo | Transport TCG storage services [1] | No | No | Yes | Yes |
| Password Silo | Password-based Authentication and Authorization | No | No | Yes | Yes |
| Smart Card Transport Silo (SCTS) | Transport Smart Card services | No | No | Yes | Yes |
Interface Transports Supported[edit]
| IEEE 1667 Version | ||||
|---|---|---|---|---|
| Feature | 2006 | 2009 | 2015 | 2018 |
| SCSI (generic) | Yes | Yes | No | No |
| USB 2.0 | Yes | Yes | Yes | Yes |
| USB 3.0/ UAS | No | No | Yes | Yes |
| SAS | No | No | Yes | Yes |
| ATAPI | No | No | Yes | Yes |
| SATA | No | No | Yes | Yes |
| PATA | No | No | Yes | Yes |
| CompactFlash | No | No | Yes | Yes |
| e•MMC | No | No | Yes | Yes |
| UFS | No | No | Yes | Yes |
| NVMe | No | No | No | Yes |
Transport Independent Discovery[edit]
The typical device discovery or enumeration process:
- A device is attached to a host (after system power-up)
- USB, IEEE 1394, ATA, CompactFlash, SD, etc. each has unique discovery mechanisms and all support many device types
- Host software uses an interface specific driver to find out what type of device was attached and what transport to use
- The host then brings up the appropriate class or device specific driver stack
Extensibility[edit]
IEEE 1667 has a mechanism to support/discover silos defined outside of the standard
- Functionality ahead of the committee
- Functionality beyond scope of the committee
- Proprietary functionality
Silo Type Identifier (STID) Registry[edit]
The IEEE Registration Authority accepts requests for new STIDs and documents existing STIDs.
Security Policies[edit]
- Security policies are enabled, not specified by IEEE 1667
- IEEE 1667 specifies consistent options for each silo type which enables security policies to be pushed from the authentication application to all supported devices
IEEE 1667 Layer Relationships[edit]
Figure from IEEE 1667-2009
References[edit]
- ^ XXXXX
External links[edit]
- IEEE 1667 Standards Working Group
- On 25th November 2008, in their description of Enhanced Storage, Microsoft announced that IEEE 1667 will be implemented on Windows 7.