公开(公告)号：US11036472B2

公开(公告)日：2021-06-15

申请号：US16182897

申请日：2018-11-07

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Sung-Kyoung Kim ,  Joong-Chul Yoon ,  Seung-Won Lee

IPC: H04L9/06 ,  G06F7/58 ,  H04L9/14

Abstract: A random number generator generates a random number by using at least two algorithms. A security device includes the random number generator. The random number generator includes a random seed generator and a post processor. The random seed generator is configured to receive an entropy signal and to generate a random seed of a digital region generated by using the entropy signal. The post processor is configured to generate a random number from the random seed by using a first algorithm and a second algorithm. A bias property represents unbiasedness of a result value, and a bias property of the first algorithm is different from a bias property of the second algorithm.

公开(公告)号：US08870062B2

公开(公告)日：2014-10-28

申请号：US14096040

申请日：2013-12-04

Applicant: Samsung Electronics Co., Ltd.

Inventor： Kikuchi Takashi ,  Joong-Chul Yoon

IPC: G06F17/00

CPC classification number: G06F13/24 ,  G06F3/061 ,  G06F3/0613 ,  G06F3/0659 ,  G06F3/067 ,  G06F3/0679 ,  G06F3/08 ,  G06F13/126 ,  G06F2003/0692 ,  G06F2213/2412 ,  G06K7/0008 ,  G06K19/07 ,  G11C11/40615 ,  G11C16/102

Abstract: An IC card and an IC card system are disclosed in which command processing performance is improved by storing current state data related to a first command upon interruption of an execution cycle for the first command by a second command Upon completion of the second command, the current state information is reloaded and execution of the first command is resumed.

Abstract translation: 公开了一种IC卡和IC卡系统，其中通过在通过第二命令中断用于第一命令的执行周期的中断时存储与第一命令相关的当前状态数据来提高命令处理性能。在完成第二命令时，当前 重新加载状态信息，并恢复第一命令的执行。

公开(公告)号：US09004349B2

公开(公告)日：2015-04-14

申请号：US14493585

申请日：2014-09-23

Applicant: Samsung Electronics Co., Ltd.

Inventor： Kikuchi Takashi ,  Joong-Chul Yoon

IPC: G06F17/00 ,  G06F3/06 ,  G06F3/08 ,  G06F13/12 ,  G06F13/24 ,  G06K7/00 ,  G06K19/07 ,  G11C11/406 ,  G11C16/10

CPC classification number: G06F13/24 ,  G06F3/061 ,  G06F3/0613 ,  G06F3/0659 ,  G06F3/067 ,  G06F3/0679 ,  G06F3/08 ,  G06F13/126 ,  G06F2003/0692 ,  G06F2213/2412 ,  G06K7/0008 ,  G06K19/07 ,  G11C11/40615 ,  G11C16/102

Abstract: An IC card and an IC card system are disclosed in which command processing performance is improved by storing current state data related to a first command upon interruption of an execution cycle for the first command by a second command. Upon completion of the second command, the current state information is reloaded and execution of the first command is resumed.

Abstract translation: 公开了一种IC卡和IC卡系统，通过第二命令，通过存储与第一命令相关的当前状态数据来执行第一命令的执行周期，从而提高了命令处理性能。 当第二命令完成时，重新加载当前状态信息，并继续执行第一命令。