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fix(st): update comment on encryption key

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On STM32MP2, the encryption key is 32 bytes, the key duplication
(done for 16 bytes OTP) is not done. Update the comment to precise that.

Change-Id: I6fc4d652fdd462808918e85f6e5bd0d68d10d436
Yann Gautier <yann.gautier@foss.st.com>
This commit is contained in:
Yann Gautier 2023-02-06 13:51:57 +01:00 • committed by Yann Gautier
parent 76e4fab000
commit 5c506c7375
1 changed files with 1 additions and 1 deletions
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2
plat/st/common/stm32mp_crypto_lib.c
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@ -491,7 +491,7 @@ static int derive_key(uint8_t *key, size_t *key_len, size_t len,
/*
* Not a real derivation yet
*
* But we expect a 32 bytes key, and OTP is only 16 bytes
* We expect a 32 bytes key, if OTP is only 16 bytes
* => duplicate.
*/
for (i = 0U, j = len; j < 32U;