摘要:
Systems and methods for displaying messages to a user, the messages having different levels of security, are provided herein. One method of displaying to a user messages having different levels of security includes receiving a message over a network includes examining an attribute of the message to determine a security-related level associated with the message. A visual indication for display to a device user is generated by the device. Such visual indication is indicative of the determined security-related level, and is configured to be visible during scrolling through a majority of the message text.
摘要:
Systems and methods are provided for facilitating access to an electronic device. Password information is stored on the electronic device, and on a portable authenticator. When a user attempts to access the electronic device, the user is prompted to enter a password at the electronic device. The portable authenticator determines the validity of the entered password. The electronic device receives the results of the validity determination from the portable authenticator, and provides access to the electronic device based on the received validity determination.
摘要:
A mobile communications device, server, and method for providing security on a mobile communications device are described. In accordance with one example embodiment, the mobile communications device comprises: a processor; a communications subsystem connected to the processor operable to exchange signals with a wireless network and with the processor; a storage element connected to the processor and having a plurality of application modules and data stored thereon, the data comprising at least user application data associated with the application modules and service data including data for establishing communications with the wireless network; and a security module operable to detect policy messages received by the mobile communications device, wherein the security module is further operable to perform a security action if a first policy message to enforce a first data protection policy is received and a subsequent policy message to enforce a second data protection policy is not received within a predetermined duration from the time at which the first policy message is received; and wherein the security action comprises erasing or encrypting at least some of the data on the storage element.
摘要:
A mobile communications device, method and computer program product for providing security on a mobile communications device are described. In accordance with one example embodiment, the mobile communications device comprises: a processor; a communications subsystem connected to the processor operable to exchange signals with a wireless network and with the processor; a storage element connected to the processor and having a plurality of application modules and data stored thereon, the data comprising at least user application data associated with the application modules and service data including data for establishing communications with the wireless network; and a security module operable to detect a locked state of the mobile communications device and initiate a lockout data protection timer for a predetermined duration upon detection of the locked state; and wherein the security module is operable to, after the lockout data protection timer has been initiated, detect if a password shared by the user and the mobile communications device is entered through a user input device within the predetermined duration of the lockout data protection timer; wherein the security module is operable to terminate the lockout data protection timer if entry of the password is detected within the predetermined duration; and wherein the security module is operable to perform a security action comprising erasing or encrypting at least some of the data on the storage element if entry of the password is not detected within the predetermined duration.
摘要:
A smart card, system, and method for securely authorizing a user or user device using the smart card is provided. The smart card is configured to provide, upon initialization or a request for authentication, a public key to the user input device such that the PIN or password entered by the user is encrypted before transmission to the smart card via a smart card reader. The smart card then decrypts the PIN or password to authorize the user. Preferably, the smart card is configured to provide both a public key and a nonce to the user input device, which then encrypts a concatenation or other combination of the nonce and the user-input PIN or password before transmission to the smart card. The smart card reader thus never receives a copy of the PIN or password in the clear, allowing the smart card to be used with untrusted smart card readers.
摘要:
A system and method for searching and retrieving certificates, which may be used in the processing of encoded messages. In one embodiment, a certificate synchronization application is programmed to perform certificate searches by querying one or more certificate servers for all of the certificates on those certificate servers. If all of the certificates on a certificate server cannot be successfully retrieved using a single search query, due to a search quota on the certificate server being exceeded for example, the search is re-performed through multiple queries, each corresponding to a narrower subsearch. The invention enables users to large amounts of certificates to be automatically searched for and retrieved from certificate servers, thereby minimizing the need for users to manually search for individual certificates.
摘要:
Increasing security for a hand-held data processing device with communication functionality where such a device includes an access-ordered memory cache relating to communications carried out by the device. The hand-held data processing device has a locked state that is entered by the device receiving or initiating a trigger. On occurrence of the trigger to enter the locked state the memory cache is reordered so as to disrupt the access-ordering of the cache to obscure device traffic information and thus increase the security of the device in the locked state.
摘要:
A mobile wireless communication device also has at least one wired communication port. Enhanced security is achieved by permitting the device to automatically disable one or more wireless ports when connected to a wired port. Specific combinations/permutations of such automatic control may be effected by use of an IT Policy also resident on the device.
摘要:
A method for secure bidirectional communication between two systems is described. A first key pair and a second key pair are generated, the latter including a second public key that is generated based upon a shared secret. First and second public keys are sent to a second system, and third and fourth public keys are received from the second system. The fourth public key is generated based upon the shared secret. A master key for encrypting messages is calculated based upon a first private key, a second private key, the third public key and the fourth public key. For re-keying, a new second key pair having a new second public key and a new second private key is generated, and a new fourth public key is received. A new master key is calculated using elliptic curve calculations using the new second private key and the new fourth public key.
摘要:
A challenge response scheme includes the authentication of a requesting device by an authenticating device. The authenticating device generates a challenge that is issued to the requesting device. The requesting device combines the challenge with a hash of a password provided by a user of the requesting device, and the combination of the hash of the password and the challenge is further hashed in order to generate a requesting encryption key that is used to encrypt the user supplied password. The encrypted user supplied password is sent to the authenticating device as a response to the issued challenge. The authenticating device generates an authenticating encryption key by generating the hash of a combination of the challenge and a stored hash of an authenticating device password. The authenticating encryption key is used to decrypt the response in order to retrieve the user-supplied password. If a hash of the user-supplied password matches the stored hash of the authenticating device password, then the requesting device has been authenticated and the authenticating device is in possession of the password.