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Note
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The Grid Community Toolkit documentation was taken from the Globus Toolkit 6.0 documentation. As a result, there may be inaccuracies and outdated information. Please report any problems to the Grid Community Forums as GitHub issues. |
Component Overview
The Grid Community Toolkit GSI C component provides APIs and tools for authentication, authorization and certificate management. The authentication API is built using Public Key Infrastructure (PKI) technologies, e.g. X.509 Certificates and TLS. In addition to authentication it features a delegation mechanism based upon X.509 Proxy Certificates. Authorization support takes the form of a couple of APIs. The first provides a generic authorization API that allows callouts to perform access control based on the client’s credentials (i.e. the X.509 certificate chain). The second provides a simple access control list that maps authorized remote entities to local (system) user names. The second mechanism also provides callouts that allow third parties to override the default behavior and is currently used in the Gatekeeper and GridFTP servers. In addition to the above there are various lower level APIs and tools for managing, discovering and querying certificates.
Feature summary
Features new in GCT 6.2
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None.
Other Supported Features
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Uses internet-standard GSSAPI for security operations.
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Supports certificate-based authentication, using both standard X.509 End Entity and Proxy Certificates.
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Supports delegation of user rights to services using standard X.509 Proxy Certificates.
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Supports authorization based on client certificate chains, including support for X.509v3 certificate extensions.
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Provides tools for managing certificates, proxies, trust roots, and credential identity mapping tables.
Deprecated Features
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None
Summary of Changes in GSIC
New Features: GSIC
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None.
Improvements: GSIC
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None
Fixed Bugs for GSIC
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None
Known Problems in GSIC
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GT-106: Free requirement for cred_get_subject_name not in API docs
Technology dependencies
The GSI C component depends on the following GCT components:
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C Common Libraries
The GSI C component depends on the following 3rd party software:
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OpenSSL
Tested platforms
GSI C has been tested on the following platforms:
| Operating System | Distribution | Version(s) | Architecture(s) |
|---|---|---|---|
Linux |
CentOS |
5, 6 |
i386, x86_64 |
7 |
x86_64 |
||
Fedora |
20, 21, 22 |
i386, x86_64 |
|
Red Hat Enterprise Linux |
5, 6 |
i386, x86_64 |
|
7 |
x86_64 |
||
Scientific Linux |
5, 6 |
i386, x86_64 |
|
7 |
x86_64 |
||
SUSE Linux Enterprise Server |
11SP3 |
x86_64 |
|
Debian |
6, 7, 8 |
i386, amd64 |
|
Ubuntu |
12.04LTS, 14.04LTS, 14.10, 15.04 |
i386, amd64 |
|
Mac OS X |
10.6-10.10 |
i386, x86_64 |
|
Solaris |
OmniOS |
r151006 |
x86_64 |
Windows 7 |
Cygwin |
i386, x86_64 |
|
MingW64 |
i386, x86_64 |
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Backward compatibility summary
Protocol changes in GSI C since GT 6.0
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None
API changes since GT 6.0
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None
Exception changes since GT 6.0
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Not applicable
Schema changes since GT 6.0
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Not applicable
For More Information
See GSI C for more information about this component.