Abstract: A method controllably encrypts data to be transmitted over a communication path between a data source and data receipt by passing data to be transported over the communication path through a first of respectively different encryption operators to produce a first encrypted data stream. This is then passed through a second selected one of respectively different data encryption operators to produce a compound encrypted output data stream that is an encryption of the first encrypted data stream.

Abstract: A network resource security services control system comprises an integrated arrangement of security services, that are operative to control the ability of an information storage and retrieval network user to have access to and communicate with one or more information resources within the network. The security access control mechanism monitors activity associated with a user's attempt to and actual conducting of data communications with respect to a system resource, and controllably modifies one or more security relationships of a security association that has been established among the users and resources of the system, in dependence upon one or more characteristics of the monitored activity, in such a manner that affects the ability of the system user to conduct data communications with respect to a system resource.

Abstract: A ‘virtual’ encryption scheme combines selected ones of plurality of different encryption operators stored in an encryption operator database into a compound sequence of encryption operators. Data to be transported from a data source site, such as a user workstation, to a data recipient site, such as another workstation, is sequentially encrypted by performing a compound sequential data flow through this sequence prior to transmission. Because of the use of successively different encryption operators, the final output of the sequence will be a compound-encrypted data stream that has no readily discernible encryption footprint. Therefore, even if a skilled data communications usurper possesses a decryption key for each encryption operators, there is a very low likelihood that he would be able to recognize the characteristics of any individual encryption operator.

Abstract: A ‘virtual’ encryption scheme combines selected ones of plurality of different encryption operators stored in an encryption operator database into a compound sequence of encryption operators. Data to be transported from a data source site, such as a user workstation, to a data recipient site, such as another workstation, is sequentially encrypted by performing a compound sequential data flow through this sequence prior to transmission. Because of the use of successively different encryption operators, the final output of the sequence will be a compound-encrypted data stream that has no readily discernible encryption footprint. Therefore, even if a skilled data communications usurper possesses a decryption key for each encryption operators, there is a very low likelihood that he would be able to recognize the characteristics of any individual encryption operator.

Abstract: A network resource security services control system comprises an integrated arrangement of security services, that are operative to control the ability of an information storage and retrieval network user to have access to and communicate with one or more information resources within the network. The security access control mechanism monitors activity associated with a user's attempt to and actual conducting of data communications with respect to a system resource, and controllably modifies one or more security relationships of a security association that has been established among the users and resources of the system, in dependence upon one or more characteristics of the monitored activity, in such a manner that affects the ability of the system user to conduct data communications with respect to a system resource.

Abstract: A network resource security services control system comprises an integrated arrangement of security services, that are operative to control the ability of an information storage and retrieval network user to have access to and communicate with one or more information resources within the network. The security access control mechanism monitors activity associated with a user's attempt to and actual conducting of data communications with respect to a system resource, and controllably modifies one or more security relationships of a security association that has been established among the users and resources of the system, in dependence upon one or more characteristics of the monitored activity, in such a manner that affects the ability of the system user to conduct data communications with respect to a system resource.

Abstract: A network resource security services control system comprises an integrated arrangement of security services, that are operative to control the ability of an information storage and retrieval network user to have access to and communicate with one or more information resources within the network. The security access control mechanism monitors activity associated with a user's attempt to and actual conducting of data communications with respect to a system resource, and controllably modifies one or more security relationships of a security association that has been established among the users and resources of the system, in dependence upon one or more characteristics of the monitored activity, in such a manner that affects the ability of the system user to conduct data communications with respect to a system resource.

Abstract: A `virtual` encryption scheme combines selected ones of plurality of different encryption operators stored in an encryption operator database into a compound sequence of encryption operators. Data to be transported from a data source site, such as a user workstation, to a data recipient site, such as another workstation, is sequentially encrypted by performing a compound sequential data flow through this sequence prior to transmission. Because of the use of successively different encryption operators, the final output of the sequence will be a compound-encrypted data stream that has no readily discernible encryption footprint. Therefore, even if a skilled data communications usurper possesses a decryption key for each encryption operators, there is a very low likelihood that he would be able to recognize the characteristics of any individual encryption operator.

Abstract: A network resource security services control system comprises an integrated arrangement of security services, that are operative to control the ability of an information storage and retrieval network user to have access to and communicate with one or more information resources within the network. The security access control mechanism monitors activity associated with a user's attempt to and actual conducting of data communications with respect to a system resource, and controllably modifies one or more security relationships of a security association that has been established among the users and resources of the system, in dependence upon one or more characteristics of the monitored activity, in such a manner that affects the ability of the system user to conduct data communications with respect to a system resource.