9bc52d330f
Host tools cert_tool and encrypt_fw refactored to be fully compatible with OpenSSL v3.0. Changes were made following the OpenSSL 3.0 migration guide: https://www.openssl.org/docs/man3.0/man7/migration_guide.html In some cases, those changes are straightforward and only a small modification on the types or API calls was needed (e.g.: replacing BN_pseudo_rand() with BN_rand(). Both identical since v1.1.0). The use of low level APIs is now deprecated. In some cases, the new API provides a simplified solution for our goals and therefore the code was simplified accordingly (e.g.: generating RSA keys through EVP_RSA_gen() without the need of handling the exponent). However, in some cases, a more sophisticated approach was necessary, as the use of a context object was required (e.g.: when retrieving the digest value from an SHA file). Signed-off-by: Juan Pablo Conde <juanpablo.conde@arm.com> Change-Id: I978e8578fe7ab3e71307450ebe7e7812fbcaedb6 |
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readme.rst
Trusted Firmware-A
Trusted Firmware-A (TF-A) is a reference implementation of secure world software for Arm A-Profile architectures (Armv8-A and Armv7-A), including an Exception Level 3 (EL3) Secure Monitor. It provides a suitable starting point for productization of secure world boot and runtime firmware, in either the AArch32 or AArch64 execution states.
TF-A implements Arm interface standards, including:
- Power State Coordination Interface (PSCI)
- Trusted Board Boot Requirements CLIENT (TBBR-CLIENT)
- SMC Calling Convention
- System Control and Management Interface (SCMI)
- Software Delegated Exception Interface (SDEI)
The code is designed to be portable and reusable across hardware platforms and software models that are based on the Armv8-A and Armv7-A architectures.
In collaboration with interested parties, we will continue to enhance TF-A with reference implementations of Arm standards to benefit developers working with Armv7-A and Armv8-A TrustZone technology.
Users are encouraged to do their own security validation, including penetration testing, on any secure world code derived from TF-A.
More Info and Documentation
To find out more about Trusted Firmware-A, please view the full documentation that is available through trustedfirmware.org.
Copyright (c) 2013-2019, Arm Limited and Contributors. All rights reserved.