公开(公告)号：US09448768B2

公开(公告)日：2016-09-20

申请号：US13792642

申请日：2013-03-11

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Yong Ki Lee ,  Jonghoon Shin ,  KyoungMoon Ahn ,  Ji-Su Kang ,  Sun-Soo Shin

IPC: G06F7/72

CPC classification number: G06F7/722 ,  G06F7/728

Abstract: A modular multiplier and a modular multiplication method are provided. The modular multiplier includes: a first register which stores a previous accumulation value calculated at a previous cycle; a second register which stores a previous quotient calculated at the previous cycle; a quotient generator which generates a quotient using the stored previous accumulation value output from the first register; and an accumulator which receives an operand, a bit value of a multiplier, the stored previous accumulation value, and the stored previous quotient to calculate an accumulation value in a current cycle, wherein the calculated accumulation value is updated to the first register, and the generated quotient is updated to the second register.

Abstract translation: 提供了一种模数乘法器和一种模乘法。 模数乘法器包括：第一寄存器，其存储在先前周期计算的先前累积值; 存储在前一周期计算的先前商的第二寄存器; 商产生器，其使用从所述第一寄存器输出的存储的先前累积值生成商; 以及累加器，其接收操作数，乘数的位值，存储的先前累积值和存储的先前商，以计算当前周期中的累积值，其中计算的累加值被更新为第一寄存器，并且 生成商被更新到第二个寄存器。

公开(公告)号：US09841950B2

公开(公告)日：2017-12-12

申请号：US15242768

申请日：2016-08-22

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Yong Ki Lee ,  Jonghoon Shin ,  KyoungMoon Ahn ,  Ji-Su Kang ,  Sun-Soo Shin

IPC: G06F7/72

CPC classification number: G06F7/722 ,  G06F7/728

Abstract: A modular multiplier and a modular multiplication method are provided. The modular multiplier includes: a first register which stores a previous accumulation value calculated at a previous cycle; a second register which stores a previous quotient calculated at the previous cycle; a quotient generator which generates a quotient using the stored previous accumulation value output from the first register; and an accumulator which receives an operand, a bit value of a multiplier, the stored previous accumulation value, and the stored previous quotient to calculate an accumulation value in a current cycle, wherein the calculated accumulation value is updated to the first register, and the generated quotient is updated to the second register.

公开(公告)号：US09633185B2

公开(公告)日：2017-04-25

申请号：US14556397

申请日：2014-12-01

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jonghoon Shin ,  KyoungMoon Ahn ,  Mijung Noh ,  Yong Ki Lee ,  Sun-Soo Shin

IPC: G06F21/00 ,  G06F21/31 ,  G06F21/60 ,  G01R31/3185

CPC classification number: G06F21/31 ,  G01R31/318588 ,  G06F21/602

Abstract: A method of debugging a device which includes a plurality of processors is provided. The method includes verifying a request to initiate authentication that is provided to the device to a user; performing a challenge-response authentication operation between the user and the device in response to the request to initiate authentication being a request from a non-malicious user; activating or deactivating an access to a Joint Test Action Group (JTAG) port of each of the processors, based on access control information from the user; and permitting a debugging operation via an access that is activated.

公开(公告)号：US20160034255A1

公开(公告)日：2016-02-04

申请号：US14722761

申请日：2015-05-27

Applicant: Samsung Electronics Co., Ltd.

Inventor： Sun-Soo Shin ,  Jonghoon Shin ,  KyoungMoon Ahn ,  Yong Ki Lee

IPC: G06F7/523

CPC classification number: G06F7/728

Abstract: Disclosed are arithmetic devices, a method of a Montgomery parameter calculation thereof and a Montgomery multiplication method thereof. The method of the Montgomery parameter calculation of the arithmetic devices includes detecting a position of a most significant bit (MSB) of a modulus, calculating an initial value using position information about the detected MSB, and calculating an intermediate value and a Montgomery parameter by repeatedly performing a Montgomery addition or a Montgomery multiplication with respect to the initial value.

Abstract translation: 公开了算术装置，其计算Montgomery参数的方法和Montgomery乘法方法。 算术装置的蒙哥马利参数计算方法包括检测模数的最高有效位（MSB）的位置，使用关于检测到的MSB的位置信息计算初始值，并通过重复地计算中间值和蒙哥马利参数 执行Montgomery加法或Montgomery乘法相对于初始值。