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Ensure the module is initialized in psa_generate_random

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This commit is contained in:
itayzafrir
2018-09-06 16:24:41 +03:00
parent e852df8466
commit 0adf0fc31c
4 changed files with 22 additions and 2 deletions
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10
library/psa_crypto.c
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@ -148,6 +148,10 @@ typedef struct
static psa_global_data_t global_data;
#define GUARD_MODULE_INITIALIZED \
if( global_data.initialized == 0 ) \
return( PSA_ERROR_BAD_STATE );
static psa_status_t mbedtls_to_psa_error( int ret )
{
/* If there's both a high-level code and low-level code, dispatch on
@ -3360,8 +3364,10 @@ psa_status_t psa_key_derivation( psa_crypto_generator_t *generator,
psa_status_t psa_generate_random( uint8_t *output,
size_t output_size )
{
int ret = mbedtls_ctr_drbg_random( &global_data.ctr_drbg,
output, output_size );
int ret;
GUARD_MODULE_INITIALIZED;
ret = mbedtls_ctr_drbg_random( &global_data.ctr_drbg, output, output_size );
return( mbedtls_to_psa_error( ret ) );
}