Abstract: A method for transmitting information is disclosed, including: writing at least a portion of the information to at least one multicast Internet Protocol (IP) address field; and transmitting at least a packet according to the at least one multicast IP address field. Even when the wireless network environment is encrypted, information can be transmitted to desired devices in the sniffer mode.

Abstract: A method for transmitting information is disclosed, including: writing at least a portion of the information to at least one multicast Internet Protocol (IP) address field; and transmitting at least a packet according to the at least one multicast IP address field. Even when the wireless network environment is encrypted, information can be transmitted to desired devices in the sniffer mode.

Abstract: A scheme for performing secure communications in a wireless local network. In one aspect of the invention, software hosted on a host processing unit maintains multiple queues. A networking module adapted to communicate with the host processing unit includes corresponding FIFO buffers to service the queues. The networking module also comprises an arbiter and a security engine. The arbiter is responsible for determining which queue is to be serviced next contingent upon a priority scheme. The security engine preferably incorporates a cipher performing encryption and decryption in a sequential or chain mode. Once one of the queues is granted by the arbiter, the security engine fetches data from the granted queue and then encrypts or decrypts the data using the cipher.

Abstract: A scheme for performing secure communications in a wireless local network. In one aspect of the invention, software hosted on a host processing unit maintains multiple queues. A networking module adapted to communicate with the host processing unit includes corresponding FIFO buffers to service the queues. The networking module also comprises an arbiter and a security engine. The arbiter is responsible for determining which queue is to be serviced next contingent upon a priority scheme. The security engine preferably incorporates a cipher performing encryption and decryption in a sequential or chain mode. Once one of the queues is granted by the arbiter, the security engine fetches data from the granted queue and then encrypts or decrypts the data using the cipher.

Abstract: A method and apparatus for performing secure communication in a WLAN environment. According to the invention, a decryption table is provided, which includes several entries each having a number of sections to store at least one check item, at least one characteristic value, a secret key and a cipher type. The check item is employed to indicate which field of the encrypted packet needs to be compared with the characteristic value in the same entry of the decryption table. In response to receipt of an encrypted packet, one entry in sequence is selected from the decryption table. Then at least one field to be checked is extracted from the encrypted packet contingent on the check item in the selected entry. Upon successful matching of the extracted field to the characteristic value in the selected entry, the secret key and the cipher type in this entry are applied to decrypt the encrypted packet.