208 lines
6.4 KiB
C
208 lines
6.4 KiB
C
/* BEGIN_HEADER */
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/* Test random generation as a whole. */
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#include "mbedtls/bignum.h"
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#include "mbedtls/ctr_drbg.h"
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#include "mbedtls/ecdsa.h"
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#include "mbedtls/entropy.h"
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#include "mbedtls/hmac_drbg.h"
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#include "mbedtls/psa_util.h"
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#include "psa/crypto.h"
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/* How many bytes to generate in each test case for repeated generation.
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* This must be high enough that the probability of generating the same
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* output twice is infinitesimal, but low enough that random generators
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* are willing to deliver that much. */
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#define OUTPUT_SIZE 32
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/* END_HEADER */
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/* BEGIN_CASE depends_on:MBEDTLS_ENTROPY_C:!MBEDTLS_PSA_INJECT_ENTROPY:MBEDTLS_CTR_DRBG_C */
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void random_twice_with_ctr_drbg()
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{
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mbedtls_entropy_context entropy;
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mbedtls_ctr_drbg_context drbg;
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unsigned char output1[OUTPUT_SIZE];
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unsigned char output2[OUTPUT_SIZE];
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MD_PSA_INIT();
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/* First round */
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mbedtls_entropy_init(&entropy);
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mbedtls_ctr_drbg_init(&drbg);
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TEST_EQUAL(0, mbedtls_ctr_drbg_seed(&drbg,
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mbedtls_entropy_func, &entropy,
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NULL, 0));
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TEST_EQUAL(0, mbedtls_ctr_drbg_random(&drbg,
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output1, sizeof(output1)));
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mbedtls_ctr_drbg_free(&drbg);
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mbedtls_entropy_free(&entropy);
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/* Second round */
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mbedtls_entropy_init(&entropy);
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mbedtls_ctr_drbg_init(&drbg);
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TEST_EQUAL(0, mbedtls_ctr_drbg_seed(&drbg,
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mbedtls_entropy_func, &entropy,
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NULL, 0));
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TEST_EQUAL(0, mbedtls_ctr_drbg_random(&drbg,
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output2, sizeof(output2)));
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mbedtls_ctr_drbg_free(&drbg);
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mbedtls_entropy_free(&entropy);
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/* The two rounds must generate different random data. */
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TEST_ASSERT(memcmp(output1, output2, OUTPUT_SIZE) != 0);
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exit:
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mbedtls_ctr_drbg_free(&drbg);
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mbedtls_entropy_free(&entropy);
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MD_PSA_DONE();
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}
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/* END_CASE */
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/* BEGIN_CASE depends_on:MBEDTLS_ENTROPY_C:!MBEDTLS_PSA_INJECT_ENTROPY:MBEDTLS_HMAC_DRBG_C */
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void random_twice_with_hmac_drbg(int md_type)
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{
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mbedtls_entropy_context entropy;
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mbedtls_hmac_drbg_context drbg;
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unsigned char output1[OUTPUT_SIZE];
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unsigned char output2[OUTPUT_SIZE];
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const mbedtls_md_info_t *md_info = mbedtls_md_info_from_type(md_type);
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MD_PSA_INIT();
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/* First round */
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mbedtls_entropy_init(&entropy);
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mbedtls_hmac_drbg_init(&drbg);
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TEST_EQUAL(0, mbedtls_hmac_drbg_seed(&drbg, md_info,
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mbedtls_entropy_func, &entropy,
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NULL, 0));
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TEST_EQUAL(0, mbedtls_hmac_drbg_random(&drbg,
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output1, sizeof(output1)));
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mbedtls_hmac_drbg_free(&drbg);
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mbedtls_entropy_free(&entropy);
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/* Second round */
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mbedtls_entropy_init(&entropy);
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mbedtls_hmac_drbg_init(&drbg);
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TEST_EQUAL(0, mbedtls_hmac_drbg_seed(&drbg, md_info,
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mbedtls_entropy_func, &entropy,
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NULL, 0));
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TEST_EQUAL(0, mbedtls_hmac_drbg_random(&drbg,
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output2, sizeof(output2)));
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mbedtls_hmac_drbg_free(&drbg);
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mbedtls_entropy_free(&entropy);
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/* The two rounds must generate different random data. */
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TEST_ASSERT(memcmp(output1, output2, OUTPUT_SIZE) != 0);
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exit:
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mbedtls_hmac_drbg_free(&drbg);
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mbedtls_entropy_free(&entropy);
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MD_PSA_DONE();
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}
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/* END_CASE */
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/* BEGIN_CASE depends_on:MBEDTLS_PSA_CRYPTO_C:!MBEDTLS_PSA_CRYPTO_EXTERNAL_RNG */
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void random_twice_with_psa_from_classic()
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{
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unsigned char output1[OUTPUT_SIZE];
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unsigned char output2[OUTPUT_SIZE];
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/* First round */
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PSA_ASSERT(psa_crypto_init());
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TEST_EQUAL(0, mbedtls_psa_get_random(MBEDTLS_PSA_RANDOM_STATE,
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output1, sizeof(output1)));
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PSA_DONE();
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/* Second round */
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PSA_ASSERT(psa_crypto_init());
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TEST_EQUAL(0, mbedtls_psa_get_random(MBEDTLS_PSA_RANDOM_STATE,
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output2, sizeof(output2)));
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PSA_DONE();
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/* The two rounds must generate different random data. */
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TEST_ASSERT(memcmp(output1, output2, OUTPUT_SIZE) != 0);
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exit:
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PSA_DONE();
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}
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/* END_CASE */
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/* BEGIN_CASE depends_on:MBEDTLS_PSA_CRYPTO_C:!MBEDTLS_PSA_CRYPTO_EXTERNAL_RNG */
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void random_twice_with_psa_from_psa()
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{
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unsigned char output1[OUTPUT_SIZE];
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unsigned char output2[OUTPUT_SIZE];
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/* First round */
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PSA_ASSERT(psa_crypto_init());
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PSA_ASSERT(psa_generate_random(output1, sizeof(output1)));
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PSA_DONE();
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/* Second round */
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PSA_ASSERT(psa_crypto_init());
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PSA_ASSERT(psa_generate_random(output2, sizeof(output2)));
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PSA_DONE();
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/* The two rounds must generate different random data. */
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TEST_ASSERT(memcmp(output1, output2, OUTPUT_SIZE) != 0);
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exit:
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PSA_DONE();
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}
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/* END_CASE */
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/* BEGIN_CASE depends_on:MBEDTLS_PSA_CRYPTO_C */
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void mbedtls_psa_get_random_no_init()
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{
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unsigned char output[1];
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TEST_ASSERT(mbedtls_psa_get_random(MBEDTLS_PSA_RANDOM_STATE,
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output, sizeof(output)) != 0);
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}
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/* END_CASE */
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/* BEGIN_CASE depends_on:MBEDTLS_PSA_CRYPTO_C */
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void mbedtls_psa_get_random_length(int n)
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{
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unsigned char *output = NULL;
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PSA_ASSERT(psa_crypto_init());
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ASSERT_ALLOC(output, n);
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TEST_EQUAL(0, mbedtls_psa_get_random(MBEDTLS_PSA_RANDOM_STATE,
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output, n));
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exit:
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mbedtls_free(output);
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PSA_DONE();
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}
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/* END_CASE */
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/* BEGIN_CASE depends_on:MBEDTLS_PSA_CRYPTO_C:MBEDTLS_ECDSA_C */
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void mbedtls_psa_get_random_ecdsa_sign(int curve)
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{
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mbedtls_ecp_group grp;
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mbedtls_mpi d, r, s;
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unsigned char buf[] = "This is not a hash.";
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mbedtls_ecp_group_init(&grp);
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mbedtls_mpi_init(&d);
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mbedtls_mpi_init(&r);
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mbedtls_mpi_init(&s);
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TEST_EQUAL(0, mbedtls_mpi_lset(&d, 123456789));
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TEST_EQUAL(0, mbedtls_ecp_group_load(&grp, curve));
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PSA_ASSERT(psa_crypto_init());
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TEST_EQUAL(0, mbedtls_ecdsa_sign(&grp, &r, &s, &d,
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buf, sizeof(buf),
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mbedtls_psa_get_random,
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MBEDTLS_PSA_RANDOM_STATE));
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exit:
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mbedtls_mpi_free(&d);
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mbedtls_mpi_free(&r);
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mbedtls_mpi_free(&s);
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mbedtls_ecp_group_free(&grp);
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PSA_DONE();
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}
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/* END_CASE */
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