Abstract: The present disclosure is directed to a method and system for encrypting files based on security rules. In accordance with a particular embodiment of the present disclosure, a request to store a file on a storage device is received. At least one security parameter associated with a security profile of the file is identified. It is determined whether to encrypt the file by applying at least one security rule to the security parameter. The security rule includes selection criteria. The file is encrypted if the security rule indicates the file should be encrypted. The file is stored on the storage device.

Abstract: Systems and methods are provided for encrypting data, generating encryption keys, and generating encryption indicators. The encryption indicators may be stored on a storage medium in a location separate from the location of stored encrypted data. The encryption indicator includes information indicative of the encryption key used for encrypting and decrypting the data. In one example, the storage medium is a tape, and the encryption indicator is stored in the user header label of the tape.

Abstract: Systems and methods are provided for encrypting data without regard to applications writing the data to, or reading the data from, encrypted data storage devices. An operating system intercept detects information indicating that a file will be encrypted and, in respond, sets device-level flags indicating encryption and also establishes one or more encryption keys to be used in the encryption process. A second intercept detects an input/output event and, in response, calls an encryption application to encrypt (or decrypt) the data before it is written to (or read from) the data storage device.

Abstract: A method comprises generating a plurality of signatures, wherein each complex signature corresponds to and identifies a respective one of a plurality of virtual tape complexes, and wherein each virtual tape complex comprises one or more subsystems and a control store linked to the one or more subsystems. For each virtual tape complex, a copy of the corresponding signature is stored in the control store corresponding to the virtual tape complex.

Abstract: The present disclosure is directed to a method and system for encrypting files based on security rules. In accordance with a particular embodiment of the present disclosure, a request to store a file on a storage device is received. At least one security parameter associated with a security profile of the file is identified. It is determined whether to encrypt the file by applying at least one security rule to the security parameter. The security rule includes selection criteria. The file is encrypted if the security rule indicates the file should be encrypted. The file is stored on the storage device.

Abstract: A method and system of emulating an input/output (I/O) device in a mainframe environment. A started task executing as part of the operating system gains control of I/O instructions directed to virtual devices by insuring that such I/O instructions cause interrupts. The started task then hooks the branch point for such interrupts. Upon obtaining control, the started task causes the I/O source to believe a transaction with a predefined data space in a general storage area on board the mainframe is actually a transaction with a physical device.