Abstract: A computer-implemented method is presented for session-based and secure access control to a data storage system, comprising: detecting an activation signal for initiating access to the data storage system; and at least one write session to write write session-related data to the data storage system. Each of the at least one write sessions comprises: in response to detecting the activation signal, selectively assigning a storage subarea to this write session; receiving or generating the data to be written in the context of the write session; protecting the data from later unauthorized access using an access protection assigned individually to the write session; and outputting the access-protected data in order to write it to the storage subarea of the data storage system that is selectively assigned to the write session, or to cause this to be done.

Abstract: A method for secure access control to a data storage system for a host apparatus by means of an access control device, the method comprising: as part of a first mode of operation of the access control device, receiving user data from the host apparatus and transmitting it in unmodified or modified form to the data storage system for local storage; exchanging a first cryptographic secret with a computer system to enable encryption of data by the access control device in dependence on the first cryptographic secret; receiving a data read request for at least a portion of the user data stored in the data storage system; in response to the data read request, transitioning the access control device to a second mode of operation in which the access control device is configured to perform read access but not write or delete access to the data storage system; and in the second operating mode, retrieving user data requested according to the data read request from the data storage system, encrypting them using the firs

Abstract: A method, in particular a computer-implemented method, for session-based and secure access control to a data storage system, comprising: detecting an activation signal for initiating access to the data storage system; and at least one write session to write write session-related data to the data storage system.

Abstract: A method for secure access control to a data storage system for a host apparatus by means of an access control device, the method comprising: as part of a first mode of operation of the access control device, receiving user data from the host apparatus and transmitting it in unmodified or modified form to the data storage system for local storage; exchanging a first cryptographic secret with a computer system to enable encryption of data by the access control device in dependence on the first cryptographic secret; receiving a data read request for at least a portion of the user data stored in the data storage system; in response to the data read request, transitioning the access control device to a second mode of operation in which the access control device is configured to perform read access but not write or delete access to the data storage system; and in the second operating mode, retrieving user data requested according to the data read request from the data storage system, encrypting them using the firs

Abstract: A storage medium having an encrypting device, including an electronic memory area, a read-in device, a read-out device, a key memory, in which a secret key is or can be stored, an encrypting device, and a decrypting device. The read-in device is designed to encrypt any data input at the interface for storage in the memory area using the key stored in the key memory and to store said encrypted data in the memory area. The read-out device has a direct read-out channel, by means of which stored encrypted data can be output to the interface in encrypted form by circumventing the decrypting device, and a decrypting read-out channel, by means of which stored encrypted data in the memory area can be decrypted by means of the decrypting device using the key stored in the key memory or a decryption key stored in the key memory and corresponding to the key and can be output to the interface in decrypted form.

Abstract: A storage medium having an encrypting device, including an electronic memory area, a read-in device, a read-out device, a key memory, in which a secret key is or can be stored, an encrypting device, and a decrypting device. The read-in device is designed to encrypt any data input at the interface for storage in the memory area using the key stored in the key memory and to store said encrypted data in the memory area. The read-out device has a direct read-out channel, by means of which stored encrypted data can be output to the interface in encrypted form by circumventing the decrypting device, and a decrypting read-out channel, by means of which stored encrypted data in the memory area can be decrypted by means of the decrypting device using the key stored in the key memory or a decryption key stored in the key memory and corresponding to the key and can be output to the interface in decrypted form.