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SSL test programs: abstract CTR_DRBG away

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In ssl_client2 and ssl_server2, to generate random data, go through a
level of indirection provided by ssl_test_lib. This way the programs
don't depend on a particular choice of RNG implementation, and only
ssl_test_lib.{h,c} explicitly reference CTR_DRBG.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
This commit is contained in:
Gilles Peskine
2021-01-13 18:59:46 +01:00
parent f1cb75fe13
commit 535fb37870
4 changed files with 27 additions and 6 deletions
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6
programs/ssl/ssl_test_lib.c
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@ -95,6 +95,12 @@ void rng_free( rng_context_t *rng )
mbedtls_entropy_free( &rng->entropy );
}
int rng_get( void *p_rng, unsigned char *output, size_t output_len )
{
rng_context_t *rng = p_rng;
return( mbedtls_ctr_drbg_random( &rng->drbg, output, output_len ) );
}
#if defined(MBEDTLS_X509_TRUSTED_CERTIFICATE_CALLBACK)
int ca_callback( void *data, mbedtls_x509_crt const *child,
mbedtls_x509_crt **candidates )