公开(公告)号：US11354453B2

公开(公告)日：2022-06-07

申请号：US16013993

申请日：2018-06-21

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Ingoo Heo ,  Jaechul Park ,  Youngjin Chung ,  Hong-Mook Choi

IPC: G06F21/78 ,  G06F12/14 ,  G06F21/60 ,  G06F21/85 ,  G06F21/71

Abstract: An encryption device includes a counter, an encryption/decryption unit, and a timer. The counter is configured to generate a first timestamp for a first time. The encryption/decryption unit is configured to concatenate security data and the first timestamp, encrypt the concatenated data into encryption data, transmit the encryption data to a memory device, and decrypt read data transmitted from the memory device into decryption data. The timer is configured to inform the counter and the encryption/decryption unit that a time elapses from the first time to a second time such that the counter generates a second timestamp for the second time and the encryption/decryption unit decrypts the read data into the decryption data. Checking logic implemented by the encryption device is configured to check whether a decryption timestamp of the decryption data is identical to the first timestamp.

公开(公告)号：US20160065361A1

公开(公告)日：2016-03-03

申请号：US14746976

申请日：2015-06-23

Applicant: Samsung Electronics Co., Ltd.

Inventor： Hong-Mook Choi ,  Yun-Ho Youm ,  Yong-Ki Lee ,  Jin-Su Hyun

IPC: H04L9/00

CPC classification number: H04L9/002 ,  H04L9/0631 ,  H04L2209/24 ,  H04L2209/34

Abstract: An endecryptor and a control device are provided. The endecryptor includes a first SBOX configured to replace first input data with first substitution data, a transformation unit configured to replace the first input data with second substitution data and an output terminal configured to output encrypted or decrypted output data based on the first and second substitution data.

Abstract translation: 提供了一个封装和控制装置。 所述封堵器包括配置成用第一替代数据替换第一输入数据的第一SBOX，被配置为用第二替代数据替换第一输入数据的变换单元和被配置为基于第一和第二替换来输出加密或解密的输出数据的输出端 数据。

公开(公告)号：US11309048B2

公开(公告)日：2022-04-19

申请号：US17027007

申请日：2020-09-21

Applicant: Samsung Electronics Co., Ltd.

Inventor： Hong-Mook Choi ,  Hye Soo Lee ,  Ji-Su Kang ,  Hyun Il Kim

IPC: G11C29/18 ,  G11C29/10 ,  G06F9/448 ,  G11C7/10 ,  G11C16/14 ,  G11C29/50

Abstract: A method of testing using a memory test apparatus connected to a memory device includes receiving a test command. When the test command is a finite state machine (FSM) operation command, the memory device is tested in accordance with the FSM operation command, and an operation is performed to output a result depending on a pass/fail result. But, when the test command is a direct access command, an auto-operation test of input data is performed in a test region according to received address information, and a test result is output, which may include output data with fail information or the auto-operation.

公开(公告)号：US20180205535A1

公开(公告)日：2018-07-19

申请号：US15915789

申请日：2018-03-08

Applicant: Samsung Electronics Co., Ltd.

Inventor： Hong-Mook Choi ,  Yun-Ho Youm ,  Yong-Ki Lee ,  Jin-Su Hyun

IPC: H04L9/00 ,  H04L9/06

CPC classification number: H04L9/002 ,  H04L9/0631 ,  H04L2209/24 ,  H04L2209/34

Abstract: An endecryptor and a control device are provided. The endecryptor includes a first SBOX configured to replace first input data with first substitution data, a transformation unit configured to replace the first input data with second substitution data and an output terminal configured to output encrypted or decrypted output data based on the first and second substitution data.

公开(公告)号：US10891396B2

公开(公告)日：2021-01-12

申请号：US15488639

申请日：2017-04-17

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Hong-Mook Choi ,  Yun-Ho Youm ,  Sang-Hyun Park ,  Hyesoo Lee

IPC: G06F21/00 ,  H04L29/06 ,  G06F21/72 ,  H04L9/00 ,  G09C1/00 ,  G06F1/06

Abstract: An electronic circuit includes an operator including logic gates configured to perform either one or both of encryption and decryption operations. The electronic circuit further includes a controller configured to control the operator to operate in a first mode in which each of the logic gates outputs a first logic value during a first time period of a clock signal, and operate in a second mode in which a number of first logic gates, each of which outputs the first logic value, among the logic gates, and a number of second logic gates, each of which outputs a second logic value, among the logic gates, are maintained constant during a second time period of the clock signal, in response to a control value indicating that either one or both of the encryption and decryption operations are performed.

公开(公告)号：US09843440B2

公开(公告)日：2017-12-12

申请号：US14790106

申请日：2015-07-02

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Hong-Mook Choi ,  Heon-Soo Lee ,  Sang-hyun Park

IPC: H04L9/06 ,  G09C1/00

CPC classification number: H04L9/0618 ,  G09C1/00 ,  H04L2209/125 ,  H04L2209/24

Abstract: An encryptor/decryptor, an electronic device including the encryptor/decryptor, and a method of operating the encryptor/decryptor are provided. The method of operating the encryptor/decryptor includes distributing an input plaintext stream to a plurality of encryption/decryption cores by pieces of plaintext data; performing a first operation by a first encryption/decryption core from among the plurality of encryption/decryption cores; and encrypting the plaintext data to ciphertext data or decrypting the ciphertext data to the plaintext data by each of the plurality of encryption/decryption cores by using a result of performing the first operation in the first encryption/decryption core.

公开(公告)号：US10396978B2

公开(公告)日：2019-08-27

申请号：US15227499

申请日：2016-08-03

Applicant: Samsung Electronics Co., Ltd.

Inventor： Hong-Mook Choi ,  Heonsoo Lee ,  Sang-Hyun Park

IPC: H04L9/06 ,  G06F21/60

Abstract: A method for encryption, decryption, or encryption and decryption of data in a crypto device having at least one crypto core may include: generating a tweak value corresponding to block data, which is placed at a random position from which the encryption, decryption, or encryption and decryption starts, from among sequential block data; and/or performing the encryption, decryption, or encryption and decryption from the block data using the tweak value. A method for encryption, decryption, or encryption and decryption of block data may include: generating a tweak value corresponding to the block data at a random position; and/or performing the encryption, decryption, or encryption and decryption of the block data using the tweak value.

公开(公告)号：US09798897B2

公开(公告)日：2017-10-24

申请号：US14577608

申请日：2014-12-19

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Yong Ki Lee ,  Yun-Ho Youm ,  Hong-Mook Choi ,  Jinsu Hyun ,  KeeMoon Chun

IPC: G06F21/72 ,  G06F21/55 ,  G09C1/00 ,  H04L9/00

CPC classification number: G06F21/72 ,  G06F21/556 ,  G09C1/00 ,  H04L9/003 ,  H04L2209/34

Abstract: A method of encoding and an encoder are provided. The method includes generating first one-hot bits for most significant bits (MSBs) and second one-hot bits for least significant bits (LSBs) using input one-hot bits; encoding the first one-hot bits to the MSBs and complementary MSBs through a first logical operation using a cross-connection; and encoding the second one-hot bits to the LSBs and complementary LSBs through a second logical operation using a cross-connection. The encoder includes a first bit generator, a first encoder, a second bit generator and a second encoder.

公开(公告)号：US09489540B2

公开(公告)日：2016-11-08

申请号：US14702167

申请日：2015-05-01

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Heon Soo Lee ,  Hong-Mook Choi ,  Sang-Hyun Park

IPC: G06F21/00 ,  G06F21/72 ,  G06F13/28 ,  G06F3/06 ,  H04L9/08

CPC classification number: G06F21/72 ,  G06F3/0619 ,  G06F3/0655 ,  G06F3/0679 ,  G06F13/28 ,  G06F21/602 ,  G06F21/74 ,  G06F21/85 ,  G06F2206/1014 ,  H04L9/0822 ,  H04L2209/12

Abstract: A method of operating a system on chip (SoC) includes converting plain data into cipher data by using an encryption key and transmitting the cipher data directly to a memory controller which controls an operation of a non-volatile memory. The encryption key may be output by a one-time programmable (OTP) memory.

Abstract translation: 一种操作片上系统（SoC）的方法包括通过使用加密密钥将普通数据转换为密码数据，并将密码数据直接发送到控制非易失性存储器的操作的存储器控​​制器。 加密密钥可以由一次性可编程（OTP）存储器输出。

公开(公告)号：US09344273B2

公开(公告)日：2016-05-17

申请号：US14291665

申请日：2014-05-30

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Hong-Mook Choi ,  Xingguang Feng

IPC: H04K1/00 ,  H04L9/00

CPC classification number: H04L9/00 ,  H04L9/003 ,  H04L9/0625 ,  H04L2209/12 ,  H04L2209/122 ,  H04L2209/127

Abstract: Provided is a cryptographic device implementing an S-Box of an encryption algorithm using a many-to-one binary function. The cryptographic device includes: arrays of first logic gates including I first logic gates which each receive 2 bits of an input signal; 2N second logic gates which each receive corresponding J bits from among I bits output from the arrays of the first logic gates; and L third logic gates which each receive K bits from among 2N bits output from the second logic gates, wherein there is a many-to-one correspondence between the N bits of the input signal and the K bits input to each of the third logic gates, and wherein the N, I, J, K, and L are positive integers. Because a signal output from each array includes only one active bit, current is always consumed constantly to prevent internal data from leaking out to a hacker.

Abstract translation: 提供了一种使用多对一二进制功能实现加密算法的S-Box的加密设备。 密码装置包括：第一逻辑门阵列，包括I个第一逻辑门，每个第一逻辑门接收输入信号的2位; 2N个第二逻辑门，每个第二逻辑门从从第一逻辑门的阵列输出的I位中接收相应的J位; 和L个第三逻辑门，每个逻辑门从第二逻辑门输出的2N位中接收K位，其中在输入信号的N位和输入到每个第三逻辑的K位之间存在多对一的对应关系 门，并且其中N，I，J，K和L是正整数。 因为每个阵列的信号输出仅包含一个有效位，所以电流始终被消耗，以防止内部数据泄漏到黑客中。