Abstract: A cathode for a lithium secondary battery includes a cathode current collector, and a cathode active material layer formed on the cathode current collector. The cathode active material layer includes a cathode active material and a conductive material ID/IG is in a range from 0.5 to 1.25 in a Raman spectrum of the cathode active material layer. The cathode active material includes lithium metal oxide particles containing nickel and manganese and having a content of cobalt of less than 2 mol % among all elements except for lithium and oxygen.

Abstract: Provided is a security device, an electronic device, a secure boot management system, a method for generating a boot image and a method for executing a boot chain. The security device includes a key deriver configured to receive a root key and a protected boot key included in a boot image and generate a derived key according to a key protection method using the root key and the protected boot key, a key processor configured to perform verification according to the key protection method using the generated derived key to extract a boot key from the protected boot key included in the boot image, a secure booter configured to perform verification on a protected execution image included in the boot image using the extracted boot key, and a processor configured to execute a verified execution image on which the verification has been completed by the secure booter.

Abstract: A security device providing a security function for an image, a camera device including the same, and a system on chip (SOC) for controlling the camera device are provided. An image transmitting device may include an image processor configured to process an image to be transmitted to an external device, and a security circuit including a key shared with the external device. The security circuit may be configured to generate a tag used for image authentication by using data of a partial region of the image and the key based on region information for selecting the partial region of the image. The image transmitting device may be configured to transmit the tag, generated to correspond to the image, to the external device with data of the image.

Abstract: A semiconductor device for provisioning secure information of a demander includes a device key storage configured to store a device key provisioned by a supplier of the semiconductor device, a master key generator configured to generate, based on the device key and demander data provisioned by the demander, a master key of the demander by using a first operation shared with the supplier and a second operation shared with the demander, and a cryptographic engine configured to perform a cryptographic operation based on the master key.

Abstract: Provided is a security device, an electronic device, a secure boot management system, a method for generating a boot image and a method for executing a boot chain. The security device includes a key deriver configured to receive a root key and a protected boot key included in a boot image and generate a derived key according to a key protection method using the root key and the protected boot key, a key processor configured to perform verification according to the key protection method using the generated derived key to extract a boot key from the protected boot key included in the boot image, a secure booter configured to perform verification on a protected execution image included in the boot image using the extracted boot key, and a processor configured to execute a verified execution image on which the verification has been completed by the secure booter.

Abstract: An encryption device for generating an electronic signature for security includes a random number generation module configured to generate at least one random number, a random number adjusting module configured to generate a one-time random number satisfying a random number condition in an elliptic curve cryptography-based digital signature algorithm (ECDSA) by adjusting the at least one random number; and an electronic signature generation module configured to generate the electronic signature using the one-time random number based on the ECDSA.

Abstract: A security device includes a secure processor, a mail box, a cryptographic intellectual property (IP), a secure direct memory access (DMA) circuit, and an internal memory. The secure processor provides an isolated execution environment. The mail box transfers a request from a CPU to the secure processor. The cryptographic IP performs one or more secure operations, including a signature certification operation, an encryption/decryption operation, and an integrity verification operation, on secure data within the isolated execution environment and without intervention of the CPU. The secure DMA circuit controls the one or more secure operations within the isolated execution environment, wherein only the secure processor is configured to control the secure DMA circuit. The internal memory stores the secure data on which the one or more secure operations are performed. The cryptographic IP includes a DMA circuit configured to control data access to an external storage.

Abstract: An application processor includes a security processor. An operating method of the security processor includes generating a recoder input including a digit-unit multiplier and a reference bit. At least one random bits having a random value are generated. When the recoder input has a predetermined pattern, the recoder input is converted into a first recoding value or a second recoding value according to a random bit corresponding to the recoder input to generate a recoding result.

Abstract: An encryption device for generating an electronic signature for security includes a random number generation module configured to generate at least one random number, a random number adjusting module configured to generate a one-time random number satisfying a random number condition in an elliptic curve cryptography-based digital signature algorithm (ECDSA) by adjusting the at least one random number; and an electronic signature generation module configured to generate the electronic signature using the one-time random number based on the ECDSA.

Abstract: A semiconductor device for provisioning secure information of a demander includes a device key storage configured to store a device key provisioned by a supplier of the semiconductor device, a master key generator configured to generate, based on the device key and demander data provisioned by the demander, a master key of the demander by using a first operation shared with the supplier and a second operation shared with the demander, and a cryptographic engine configured to perform a cryptographic operation based on the master key.

Abstract: A security device providing a security function for an image, a camera device including the same, and a system on chip (SOC) for controlling the camera device are provided. An image transmitting device may include an image processor configured to process an image to be transmitted to an external device, and a security circuit including a key shared with the external device. The security circuit may be configured to generate a tag used for image authentication by using data of a partial region of the image and the key based on region information for selecting the partial region of the image. The image transmitting device may be configured to transmit the tag, generated to correspond to the image, to the external device with data of the image.

Abstract: An embodiment includes an electronic device, comprising: a control intellectual property (IP) including a plurality of first special function registers (SFRs); a basic operation IP including a plurality of second SFRs and coupled to the control IP through a first path and a second path; and a random number generator configured to generate a random signal; wherein the control IP is configured to: select one of the first path and the second path based on the random signal; and set the second SFRs using the selected path.

Abstract: A security device includes a secure processor, a mail box, a cryptographic intellectual property (IP), a secure direct memory access (DMA) circuit, and an internal memory. The secure processor provides an isolated execution environment. The mail box transfers a request from a CPU to the secure processor. The cryptographic IP performs one or more secure operations, including a signature certification operation, an encryption/decryption operation, and an integrity verification operation, on secure data within the isolated execution environment and without intervention of the CPU. The secure DMA circuit controls the one or more secure operations within the isolated execution environment, wherein only the secure processor is configured to control the secure DMA circuit. The internal memory stores the secure data on which the one or more secure operations are performed. The cryptographic IP includes a DMA circuit configured to control data access to an external storage.

Abstract: An application processor includes a security processor. An operating method of the security processor includes generating a recoder input including a digit-unit multiplier and a reference bit. At least one random bits having a random value are generated. When the recoder input has a predetermined pattern, the recoder input is converted into a first recoding value or a second recoding value according to a random bit corresponding to the recoder input to generate a recoding result.

Abstract: An embodiment includes an electronic device, comprising: a control intellectual property (IP) including a plurality of first special function registers (SFRs); a basic operation IP including a plurality of second SFRs and coupled to the control IP through a first path and a second path; and a random number generator configured to generate a random signal; wherein the control IP is configured to: select one of the first path and the second path based on the random signal; and set the second SFRs using the selected path.