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| author | Yann Gautier <yann.gautier@foss.st.com> | 2023-01-24 09:39:47 +0100 |
|---|---|---|
| committer | Manish V Badarkhe <Manish.Badarkhe@arm.com> | 2023-04-21 09:46:01 +0100 |
| commit | 4ac5b3949d874c4e0cd74fce8360a554bfd4cd3f (patch) | |
| tree | 54a40c8c0f9a3efd4db297cff66cb8091fe6c383 /docs/porting-guide.rst | |
| parent | 0ca7b32623041acca0e505a07fca458fe0876d79 (diff) | |
| download | arm-trusted-firmware-4ac5b3949d874c4e0cd74fce8360a554bfd4cd3f.tar.gz | |
refactor(auth): replace plat_convert_pk
Following discussions in the reviews of the patch that introduced
plat_convert_pk() function [1], it was decided to deprecate it to
avoid weak function declaration.
A new optional function pointer convert_pk is added to crypto_lib_desc_t.
A new function crypto_mod_convert_pk() will either call
crypto_lib_desc.convert_pk() if it is defined, or do the same
as what was done by the weak function otherwise.
[1] https://review.trustedfirmware.org/c/TF-A/trusted-firmware-a/+/17174
Signed-off-by: Yann Gautier <yann.gautier@foss.st.com>
Change-Id: I9358867f8bfd5e96b5ee238c066877da368e43c6
Diffstat (limited to 'docs/porting-guide.rst')
| -rw-r--r-- | docs/porting-guide.rst | 28 |
1 files changed, 0 insertions, 28 deletions
diff --git a/docs/porting-guide.rst b/docs/porting-guide.rst index bc9c00f3c..25b55e813 100644 --- a/docs/porting-guide.rst +++ b/docs/porting-guide.rst @@ -894,34 +894,6 @@ The function returns 0 on success. Any other value means the counter value either could not be updated or the authentication image descriptor indicates that it is not allowed to be updated. -Function: plat_convert_pk() -~~~~~~~~~~~~~~~~~~~~~~~~~~~ - -:: - - Argument : void *, unsigned int, void **, unsigned int * - Return : int - -This function is optional when Trusted Board Boot is enabled, and only -used if the platform saves a hash of the ROTPK. -First argument is the Distinguished Encoding Rules (DER) ROTPK. -Second argument is its size. -Third argument is used to return a pointer to a buffer, which hash should -be the one saved in OTP. -Fourth argument is a pointer to return its size. - -Most platforms save the hash of the ROTPK, but some may save slightly different -information - e.g the hash of the ROTPK plus some related information. -Defining this function allows to transform the ROTPK used to verify -the signature to the buffer (a platform specific public key) which -hash is saved in OTP. - -The default implementation copies the input key and length to the output without -modification. - -The function returns 0 on success. Any other value means the expected -public key buffer cannot be extracted. - Dynamic Root of Trust for Measurement support (in BL31) ------------------------------------------------------- |