From 0200020bc2b8192c31dc57c600865267f51bface Mon Sep 17 00:00:00 2001 From: Raul Cardenas Date: Fri, 27 Feb 2015 11:22:06 -0600 Subject: imx6: Added DEK blob generator command Freescale's SEC block has built-in Data Encryption Key(DEK) Blob Protocol which provides a method for protecting a DEK for non-secure memory storage. SEC block protects data in a data structure called a Secret Key Blob, which provides both confidentiality and integrity protection. Every time the blob encapsulation is executed, a AES-256 key is randomly generated to encrypt the DEK. This key is encrypted with the OTP Secret key from SoC. The resulting blob consists of the encrypted AES-256 key, the encrypted DEK, and a 16-bit MAC. During decapsulation, the reverse process is performed to get back the original DEK. A caveat to the blob decapsulation process, is that the DEK is decrypted in secure-memory and can only be read by FSL SEC HW. The DEK is used to decrypt data during encrypted boot. Commands added -------------- dek_blob - encapsulating DEK as a cryptgraphic blob Commands Syntax --------------- dek_blob src dst len Encapsulate and create blob of a len-bits DEK at address src and store the result at address dst. Signed-off-by: Raul Cardenas Signed-off-by: Nitin Garg Signed-off-by: Ulises Cardenas Signed-off-by: Ulises Cardenas-B45798 --- arch/arm/include/asm/arch-mx6/imx-regs.h | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'arch/arm/include/asm/arch-mx6/imx-regs.h') diff --git a/arch/arm/include/asm/arch-mx6/imx-regs.h b/arch/arm/include/asm/arch-mx6/imx-regs.h index ae88b6ecab..9a4ad8b559 100644 --- a/arch/arm/include/asm/arch-mx6/imx-regs.h +++ b/arch/arm/include/asm/arch-mx6/imx-regs.h @@ -215,6 +215,10 @@ #define AIPS2_OFF_BASE_ADDR (ATZ2_BASE_ADDR + 0x80000) #define CAAM_BASE_ADDR (ATZ2_BASE_ADDR) #define ARM_BASE_ADDR (ATZ2_BASE_ADDR + 0x40000) + +#define CONFIG_SYS_FSL_SEC_ADDR CAAM_BASE_ADDR +#define CONFIG_SYS_FSL_JR0_ADDR (CAAM_BASE_ADDR + 0x1000) + #define USB_PL301_BASE_ADDR (AIPS2_OFF_BASE_ADDR + 0x0000) #define USB_BASE_ADDR (AIPS2_OFF_BASE_ADDR + 0x4000) -- cgit