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Misc optimizations #21035

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merged 2 commits into from
Mar 24, 2025
Merged

Misc optimizations #21035

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88b64bb
nrf_security: cracen: Change variable to static
SebastianBoe Mar 19, 2025
759b434
nrf_security: cracen: Use a smaller prng_pool on 54h20
SebastianBoe Mar 19, 2025
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2 changes: 1 addition & 1 deletion subsys/nrf_security/src/drivers/cracen/cracenpsa/src/platform_keys/platform_keys.c
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Original file line number Diff line number Diff line change
Expand Up @@ -48,7 +48,7 @@ static struct {
{DOMAIN_CELL, "CELL-"}, {DOMAIN_WIFI, "WIFI-"},
{DOMAIN_RADIO, "RADIOCORE-"}, {DOMAIN_APPLICATION, "APPLICATION-"}};

struct {
static struct {
uint8_t id;
const char *label;
} key_type_to_label[] = {
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6 changes: 6 additions & 0 deletions subsys/nrf_security/src/drivers/cracen/cracenpsa/src/prng_pool.c
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Expand Up @@ -17,8 +17,14 @@
* and can be freely adjusted later when we test this
* in practice.
*
* The CONFIG_SOC_NRF54H20_CPUSEC secure element only has 29kB of RAM
* so we have a smaller pool for this platform.
*/
#ifdef CONFIG_SOC_NRF54H20_CPUSEC
#define PRNG_POOL_SIZE (8)
#else
#define PRNG_POOL_SIZE (32)
#endif

static uint32_t prng_pool[PRNG_POOL_SIZE];
static uint32_t prng_pool_remaining;
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