A stealth system and method that allows a resource to be practically invulnerable to fast online brute-force attacks is disclosed. The method for controlling access to a computer resource consists in performing a user authentication procedure upon receiving a request from a user to access the computer resource. As part of the user authentication procedure, a password verification procedure is performed which comprises the steps of requesting a password from the user and comparing the entered password with an expected valid one. The next steps are to compute the number of ungranted access for the user during a predefined time interval N if the password matches the expected one and to grant access to the user only if the computed number is lower than a predetermined number K of authorized requests. Otherwise, if either the password does not match the expected one or the number of unsuccessful attempts to log is higher than the predetermined number, the access is denied to the user and a time stamp of the ungranted access is stored.
A computer system (for example a blade server system) includes a connection framework for receiving at least two replaceable units (e.g., service processor units). Where a first replaceable unit is provided in the connection framework, the first replaceable unit can, on a second replaceable unit being received in the framework, allow restricted use of a default admin user login without a password for up to the end of predetermined period following receipt of the second replaceable unit. On receipt of an admin login with a configured password during the period, or on expiry of the period, the system can revert to normal operation.
A data storage device is secured by extracting timing information encoded within a password-related symbol stream received by the storage device and denying access if the timing information is incorrect or the symbol stream is not identical to a valid authentication sequence. In one embodiment, each symbol corresponds to a password, and at least one symbol is transmitted within a specified timing window while at least one other symbol must be transmitted at a random time that varies with each authentication attempt. In certain embodiments, a computing device associated with the data storage device is configured to provide a single password prompt, receive a character sequence corresponding to a plurality of passwords from a user, and communicate an encrypted symbol stream to the storage device with a specified timing pattern imposed thereon.
A data storage device is secured by extracting timing information encoded within a password-related symbol stream received by the storage device and denying access if the timing information is incorrect or the symbol stream is not identical to a valid authentication sequence. In one embodiment, each symbol corresponds to a password, and at least one symbol is transmitted within a specified timing window while at least one other symbol must be transmitted at a random time that varies with each authentication attempt. In certain embodiments, a computing device associated with the data storage device is configured to provide a single password prompt, receive a character sequence corresponding to a plurality of passwords from a user, and communicate an encrypted symbol stream to the storage device with a specified timing pattern imposed thereon.
A data storage device is secured by extracting timing information encoded within a password-related symbol stream received by the storage device and denying access if the timing information is incorrect or the symbol stream is not identical to a valid authentication sequence. In one embodiment, each symbol corresponds to a password, and at least one symbol is transmitted within a specified timing window while at least one other symbol must be transmitted at a random time that varies with each authentication attempt. In certain embodiments, a computing device associated with the data storage device is configured to provide a single password prompt, receive a character sequence corresponding to a plurality of passwords from a user, and communicate an encrypted symbol stream to the storage device with a specified timing pattern imposed thereon.
A data storage device is secured by extracting timing information encoded within a password-related symbol stream received by the storage device and denying access if the timing information is incorrect or the symbol stream is not identical to a valid authentication sequence. In one embodiment, each symbol corresponds to a password, and at least one symbol is transmitted within a specified timing window while at least one other symbol must be transmitted at a random time that varies with each authentication attempt. In certain embodiments, a computing device associated with the data storage device is configured to provide a single password prompt, receive a character sequence corresponding to a plurality of passwords from a user, and communicate an encrypted symbol stream to the storage device with a specified timing pattern imposed thereon.
