javax.security.auth.kerberos.ServicePermission
This class is used to protect Kerberos services and the credentials necessary to access those services. There is a one to one mapping of a service principal and the credentials necessary to access the service. Therefore granting access to a service principal implicitly grants access to the credential necessary to establish a security context with the service principal. This applies regardless of whether the credentials are in a cache or acquired via an exchange with the KDC. The credential can be either a ticket granting ticket, a service ticket or a secret key from a key table.
A ServicePermission contains a service principal name and a list of actions which specify the context the credential can be used within.
The service principal name is the canonical name of the KerberosPrincipal supplying the service, that is the KerberosPrincipal represents a Kerberos service principal. This name is treated in a case sensitive manner. An asterisk may appear by itself, to signify any service principal.
Granting this permission implies that the caller can use a cached credential (TGT, service ticket or secret key) within the context designated by the action. In the case of the TGT, granting this permission also implies that the TGT can be obtained by an Authentication Service exchange.
The possible actions are:
initiate - allow the caller to use the credential to initiate a security context with a service principal.
accept - allow the caller to use the credential to accept security context as a particular principal.
For example, to specify the permission to access to the TGT to initiate a security context the permission is constructed as follows:
ServicePermission("krbtgt/EXAMPLE.COM@EXAMPLE.COM", "initiate");
To obtain a service ticket to initiate a context with the "host" service the permission is constructed as follows:
ServicePermission("host/foo.example.com@EXAMPLE.COM", "initiate");
For a Kerberized server the action is "accept". For example, the permission necessary to access and use the secret key of the Kerberized "host" service (telnet and the likes) would be constructed as follows:
ServicePermission("host/foo.example.com@EXAMPLE.COM", "accept");
This class is used to protect Kerberos services and the
credentials necessary to access those services. There is a one to
one mapping of a service principal and the credentials necessary
to access the service. Therefore granting access to a service
principal implicitly grants access to the credential necessary to
establish a security context with the service principal. This
applies regardless of whether the credentials are in a cache
or acquired via an exchange with the KDC. The credential can
be either a ticket granting ticket, a service ticket or a secret
key from a key table.
A ServicePermission contains a service principal name and
a list of actions which specify the context the credential can be
used within.
The service principal name is the canonical name of the
KerberosPrincipal supplying the service, that is
the KerberosPrincipal represents a Kerberos service
principal. This name is treated in a case sensitive manner.
An asterisk may appear by itself, to signify any service principal.
Granting this permission implies that the caller can use a cached
credential (TGT, service ticket or secret key) within the context
designated by the action. In the case of the TGT, granting this
permission also implies that the TGT can be obtained by an
Authentication Service exchange.
The possible actions are:
initiate - allow the caller to use the credential to
initiate a security context with a service
principal.
accept - allow the caller to use the credential to
accept security context as a particular
principal.
For example, to specify the permission to access to the TGT to
initiate a security context the permission is constructed as follows:
ServicePermission("krbtgt/EXAMPLE.COM@EXAMPLE.COM", "initiate");
To obtain a service ticket to initiate a context with the "host"
service the permission is constructed as follows:
ServicePermission("host/foo.example.com@EXAMPLE.COM", "initiate");
For a Kerberized server the action is "accept". For example, the permission
necessary to access and use the secret key of the Kerberized "host"
service (telnet and the likes) would be constructed as follows:
ServicePermission("host/foo.example.com@EXAMPLE.COM", "accept");->service-permissionclj
(->service-permission service-principal action)Constructor.
Create a new ServicePermission with the specified servicePrincipal and action.
service-principal - the name of the service principal. An asterisk may appear by itself, to signify any service principal. - java.lang.String
action - the action string - java.lang.String
Constructor. Create a new ServicePermission with the specified servicePrincipal and action. service-principal - the name of the service principal. An asterisk may appear by itself, to signify any service principal. - `java.lang.String` action - the action string - `java.lang.String`
equalsclj
(equals this obj)Checks two ServicePermission objects for equality.
obj - the object to test for equality with this object. - java.lang.Object
returns: true if obj is a ServicePermission, and has the
same service principal, and actions as this
ServicePermission object. - boolean
Checks two ServicePermission objects for equality. obj - the object to test for equality with this object. - `java.lang.Object` returns: true if obj is a ServicePermission, and has the same service principal, and actions as this ServicePermission object. - `boolean`
get-actionsclj
(get-actions this)Returns the canonical string representation of the actions. Always returns present actions in the following order: initiate, accept.
returns: the actions of this Permission. - java.lang.String
Returns the canonical string representation of the actions. Always returns present actions in the following order: initiate, accept. returns: the actions of this Permission. - `java.lang.String`
hash-codeclj
(hash-code this)Returns the hash code value for this object.
returns: a hash code value for this object. - int
Returns the hash code value for this object. returns: a hash code value for this object. - `int`
impliesclj
(implies this p)Checks if this Kerberos service permission object "implies" the specified permission.
If none of the above are true, implies returns false.
p - the permission to check against. - java.security.Permission
returns: true if the specified permission is implied by this object,
false if not. - boolean
Checks if this Kerberos service permission object "implies" the specified permission. If none of the above are true, implies returns false. p - the permission to check against. - `java.security.Permission` returns: true if the specified permission is implied by this object, false if not. - `boolean`
new-permission-collectionclj
(new-permission-collection this)Returns a PermissionCollection object for storing ServicePermission objects.
ServicePermission objects must be stored in a manner that allows them to be inserted into the collection in any order, but that also enables the PermissionCollection implies method to be implemented in an efficient (and consistent) manner.
returns: a new PermissionCollection object suitable for storing
ServicePermissions. - java.security.PermissionCollection
Returns a PermissionCollection object for storing ServicePermission objects. ServicePermission objects must be stored in a manner that allows them to be inserted into the collection in any order, but that also enables the PermissionCollection implies method to be implemented in an efficient (and consistent) manner. returns: a new PermissionCollection object suitable for storing ServicePermissions. - `java.security.PermissionCollection`
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