Samsung Electronics Co., Ltd.

Byung-Yoon Kang

Sang-Bum Kim

Seong-Hyun Kim

Sung-Hyun Kim

Sang-Wook Kang

Joong-Chul Yoon

Jong-Sang Choi

Chul-joon Choi

Koon-Han Sohn

An encryption processor, for storing encrypted data in a memory chip of a memory card, includes a FIFO memory for sequentially outputting m-bit data in response to a first signal, and an encryption key generator for generating m-bit encrypted keys (m being a positive integer) in response to a second signal and for sequentially outputting the keys in response to a third signal. A logic operator performs a logic operation on the data from the FIFO memory with the keys from the encryption key generator during a data write operation to sequentially encrypt the data. The logic operator performs a logic operation on the encrypted data received from a memory interface with the keys output from the encryption key generator during a data read operation in order to sequentially decode the encrypted data. The second signal is simultaneously generated with one of the write command or the read command.

Encryption processor of memory card and method for writing and reading data using the same

In a method for controlling access to data stored on a smart card, an external request for communication with the smart card is received via a first communication interface. The external request for communication may be a request for communication over a second communication interface, for example, from a smart card reader. Private data from the smart card is transmitted via the second communication interface responsive to authentication of a user of the smart card. Related devices are also discussed.

Methods for controlling access to data stored in smart cards and related devices

Growing community of inventors

Gyeonggi-do, South Korea

Byung-Yoon Kang