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path: root/include/common/auth.h
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2015-06-25TBB: switch to the new authentication frameworkJuan Castillo
This patch modifies the Trusted Board Boot implementation to use the new authentication framework, making use of the authentication module, the cryto module and the image parser module to authenticate the images in the Chain of Trust. A new function 'load_auth_image()' has been implemented. When TBB is enabled, this function will call the authentication module to authenticate parent images following the CoT up to the root of trust to finally load and authenticate the requested image. The platform is responsible for picking up the right makefiles to build the corresponding cryptographic and image parser libraries. ARM platforms use the mbedTLS based libraries. The platform may also specify what key algorithm should be used to sign the certificates. This is done by declaring the 'KEY_ALG' variable in the platform makefile. FVP and Juno use ECDSA keys. On ARM platforms, BL2 and BL1-RW regions have been increased 4KB each to accommodate the ECDSA code. REMOVED BUILD OPTIONS: * 'AUTH_MOD' Change-Id: I47d436589fc213a39edf5f5297bbd955f15ae867
2015-01-28TBB: add authentication module interfaceJuan Castillo
This patch provides an API to access the authentication module that will be used to verify the authenticity of the images loaded into memory as part of the Trusted Board Boot process. To include the authentication module as part of the build, set the boolean build option TRUSTED_BOARD_BOOT. One single authentication module must be registered at build time by setting the build option AUTH_MOD=<mod_name>. All authentication modules will be located in 'common/auth/<mod_name>' and must present the <mod_name>.mk file that will be included by the build system to compile the module sources. To create an authentication module, an instance of auth_mod_t called 'auth_mod' must be declared in the module sources. The initialization and verification functions provided by the module will be exported through the function pointers specified when declaring this instance. If an authentication module includes third party sources that do not adhere to the C99 standard, the -pedantic option may be removed from the build options by setting the flag DISABLE_PEDANTIC in the module file <mod_name>.mk. Change-Id: I080bb04bd421029bcdf22ec2c63807afbf061dcd