摘要:
A method for securing cached data in an enterprise environment. The method can include processing a request to locate data in a query cache. If the data can be located in the query cache, the data can be retrieved from the query cache. Additionally, at least one encrypted portion of the retrieved data can be decrypted. Finally, the decrypted portion and any remaining unencrypted portion of the retrieved data can be forwarded to a requesting client. By comparison, if the data cannot be located in the query cache, the data can be retrieved from a back-end data source over a computer communications network, and forwarded to the requesting client. Additionally, at least a portion of the retrieved data can be encrypted and both the encrypted portion and any remaining unencrypted portion can be stored in the query cache.
摘要:
The present invention implements a set of interfaces for a standard Java execution environment to provide authorization with conditional permissions. In particular, a framework enables a provider to provide a condition-based runtime authorization decision when a caller entity requests a Java resource. To this end, during a policy configuration certain “Conditions” may be associated with a standard Java Permission object using a ConditionalPermission class. Each “Condition” may be represented in one of a set of different conditions (e.g., containment, logical, comparison, owner and regular expression conditions) using various name-value pairs of “AttributeName” objects. During runtime, an “implies” method in the ConditionalPermission class returns true if the argument permission is implied by the wrapped permission and the additional “Conditions” are evaluated to be true. The ConditionalPermission class allows the caller to seamlessly instrument an instance evaluation “Condition” into a regular permission evaluation and to hand off this evaluation to a provider to facilitate an instance-based runtime authorization decision. The framework is highly flexible and provides for a wide-range of possible fine-grained policy and instance-based “Conditions” for authorization evaluation.
摘要:
Methods, systems, and computer program products are disclosed for protecting the security of resources in distributed computing environments. The disclosed techniques improve administration and enforcement of security policies. Allowed actions on resources, also called permissions, (such as invocations of particular methods, read or write access of a particular row or perhaps a particular column in a database table, and so forth) are grouped, and each group of permissions is associated with a role name. A particular action on a particular resource may be specified in more than one group, and therefore may be associated with more than one role. Each role is administered as a security object. Users and/or user groups may be associated with one or more roles. At run-time, access to a resource is protected by determining whether the invoking user has been associated with (granted) at least one of the roles required for this type of access on this resource.
摘要:
A method, apparatus and computer program product are provided to model and manage context-based entitlements that govern a user's access to information, applications and systems across a loosely-coupled distributed environment. One such distributed environment is a federated environment, which may span across companies, organizations, and geographical locations and regions. According to one embodiment, an entitlement modeling framework comprises a discovery module and an entitlement generator module. The discovery framework generates a data model for storing information concerning user identity, context, relationships between users, relationships between users and contexts and relationships between contexts. Preferably, the user identity, context, relationships between users, relationships between users and contexts, and relationships between contexts, are stored as attributes in the data model. An entitlement generator generates an entitlement according to the data model, wherein the entitlement (e.g., a user entitlement) is generated according to one or more contexts.
摘要:
A method, system, and computer usable program product for classification and policy management for software components are provided in the illustrative embodiments. A metadata associated with an application or component is identified. A mapping determination is made whether the metadata maps to a classification in a set of classifications. A policy that is applicable to the classification is identified and associated with the classification. If the mapping determination is deterministic, the component is assigned to the classification and the policy associated with the classification is associated with the component. If the mapping determination is not deterministic, a user intervention may be necessary, the component may be classified in a default classification, or both. Because of the policy being associated with the classification, associating the policy with the component may occur based on the metadata of the application or component and its resultant classification.
摘要:
A method and apparatus for type independent permission based access control are provided. The method and apparatus utilize object inheritance to provide a mechanism by which a large group of permissions may be assigned to a codesource without having to explicitly assign each individual permission to the codesource. A base permission, or superclass permission, is defined along with inherited, or subclass, permissions that fall below the base permission in a hierarchy of permissions. Having defined the permissions in such a hierarchy, a developer may assign a base permission to an installed class and thereby assign all of the inherited permissions of the base permission to the installed class. In this way, security providers need not know all the permission types defined in an application. In addition, security providers can seamlessly integrate with many applications without changing their access control and policy store semantics. Moreover, application providers' security enforcement is no dependent on the security provider defined permissions. The method and apparatus do not require any changes to the Java security manager and do not require changes to application code.
摘要:
A method, system, and computer usable program product for classification and policy management for software components are provided in the illustrative embodiments. A metadata associated with an application or component is identified. A mapping determination is made whether the metadata maps to a classification in a set of classifications. A policy that is applicable to the classification is identified and associated with the classification. If the mapping determination is deterministic, the component is assigned to the classification and the policy associated with the classification is associated with the component. If the mapping determination is not deterministic, a user intervention may be necessary, the component may be classified in a default classification, or both. Because of the policy being associated with the classification, associating the policy with the component may occur based on the metadata of the application or component and its resultant classification.
摘要:
A pluggable trust adapter architecture that accommodates a plurality of interceptors is provided. Each interceptor is adapted to perform security processing of communications having a specific protocol. Specifically, when a communication is received, it will be routed from a channel router to a specific interceptor based on the protocol of the communication. The interceptor will then “security” process the communication (e.g., extract data, perform verification, etc.). Once the interceptor has processed the communication, the extracted data and the communication itself will be passed to an authorization system for authorization.
摘要:
A method, system, apparatus, or computer program product is presented for routing event messages between data processing systems based on privacy policies associated with the data processing systems and based on event policies associated with event types for the event messages. When a system attempts to publish an event message for a particular type of event or to subscribe to those event messages, an event policy is checked to determine whether the system may publish messages for that type of event or may subscribe to those messages. Moreover, if a publishing system publishes an event message that contains personally identifiable information for a user of a data processing system, and a subscribing system has subscribed to event messages having the same event type, then the privacy policies associated with the systems are compared to determine compatibility or incompatibility between the privacy policies before routing a message between the systems.
摘要:
A method is presented in which federated domains interact within a federated environment. Domains within a federation can initiate federated single-sign-on operations for a user at other federated domains. A point-of-contact server within a domain relies upon a trust proxy within the domain to manage trust relationships between the domain and the federation. Trust proxies interpret assertions from other federated domains as necessary. Trust proxies may have a trust relationship with one or more trust brokers, and a trust proxy may rely upon a trust broker for assistance in interpreting assertions. When a user requests to logoff from a domain that has initiated federated single-sign-on operations for the user at other federated domains, the domain initiates a consolidated logoff operation by requesting logoff operations at those other federated domains, which may also initiate logoff operations in a cascaded fashion to the domains at which they have initiated federated single-sign-on operations.