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fix(esp_security): Enable ECC clock while using the Key Manager's ECDH key deployment mode

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This commit is contained in:
harshal.patil
2026-04-23 09:53:44 +05:30
parent 31538a67d5
commit 1caafa9e2b
5 changed files with 363 additions and 16 deletions
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9
components/esp_security/src/esp_key_mgr.c
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@@ -125,6 +125,12 @@ static void esp_key_mgr_acquire_hardware(bool deployment_mode)
esp_crypto_ecc_lock_acquire();
esp_crypto_sha_aes_lock_acquire();
esp_crypto_key_manager_lock_acquire();
// The KM peripheral uses the external ECC block for the ECDH0/ECDH1
// scalar multiplications; its bus clock must be on, otherwise the KM
// deploys an incorrect key.
#if SOC_ECC_SUPPORTED
esp_crypto_ecc_enable_periph_clk(true);
#endif
}
// Reset the Key Manager Clock
esp_crypto_key_mgr_enable_periph_clk(true);
@@ -133,6 +139,9 @@ static void esp_key_mgr_acquire_hardware(bool deployment_mode)
static void esp_key_mgr_release_hardware(bool deployment_mode)
{
if (deployment_mode) {
#if SOC_ECC_SUPPORTED
esp_crypto_ecc_enable_periph_clk(false);
#endif
esp_crypto_key_manager_lock_release();
esp_crypto_sha_aes_lock_release();
esp_crypto_ecc_lock_release();