279 lines
7.5 KiB
C
279 lines
7.5 KiB
C
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/*
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* Copyright 2017-2019 The OpenSSL Project Authors. All Rights Reserved.
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*
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* Licensed under the OpenSSL license (the "License"). You may not use
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* this file except in compliance with the License. You can obtain a copy
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* in the file LICENSE in the source distribution or at
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* https://www.openssl.org/source/license.html
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*/
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#include <string.h>
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#include "internal/nelem.h"
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#include <openssl/crypto.h>
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#include <openssl/err.h>
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#include <openssl/rand.h>
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#include <openssl/obj_mac.h>
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#include <openssl/evp.h>
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#include <openssl/aes.h>
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#include "../crypto/rand/rand_local.h"
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#include "testutil.h"
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#include "drbg_cavs_data.h"
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static int app_data_index;
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typedef struct test_ctx_st {
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const unsigned char *entropy;
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size_t entropylen;
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int entropycnt;
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const unsigned char *nonce;
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size_t noncelen;
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int noncecnt;
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} TEST_CTX;
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static size_t kat_entropy(RAND_DRBG *drbg, unsigned char **pout,
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int entropy, size_t min_len, size_t max_len,
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int prediction_resistance)
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{
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TEST_CTX *t = (TEST_CTX *)RAND_DRBG_get_ex_data(drbg, app_data_index);
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t->entropycnt++;
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*pout = (unsigned char *)t->entropy;
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return t->entropylen;
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}
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static size_t kat_nonce(RAND_DRBG *drbg, unsigned char **pout,
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int entropy, size_t min_len, size_t max_len)
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{
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TEST_CTX *t = (TEST_CTX *)RAND_DRBG_get_ex_data(drbg, app_data_index);
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t->noncecnt++;
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*pout = (unsigned char *)t->nonce;
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return t->noncelen;
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}
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/*
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* Do a single NO_RESEED KAT:
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*
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* Instantiate
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* Generate Random Bits (pr=false)
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* Generate Random Bits (pr=false)
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* Uninstantiate
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*
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* Return 0 on failure.
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*/
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static int single_kat_no_reseed(const struct drbg_kat *td)
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{
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struct drbg_kat_no_reseed *data = (struct drbg_kat_no_reseed *)td->t;
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RAND_DRBG *drbg = NULL;
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unsigned char *buff = NULL;
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unsigned int flags = 0;
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int failures = 0;
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TEST_CTX t;
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if (td->df != USE_DF)
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flags |= RAND_DRBG_FLAG_CTR_NO_DF;
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if (!TEST_ptr(drbg = RAND_DRBG_new(td->nid, flags, NULL)))
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return 0;
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if (!TEST_true(RAND_DRBG_set_callbacks(drbg, kat_entropy, NULL,
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kat_nonce, NULL))) {
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failures++;
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goto err;
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}
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memset(&t, 0, sizeof(t));
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t.entropy = data->entropyin;
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t.entropylen = td->entropyinlen;
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t.nonce = data->nonce;
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t.noncelen = td->noncelen;
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RAND_DRBG_set_ex_data(drbg, app_data_index, &t);
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buff = OPENSSL_malloc(td->retbyteslen);
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if (buff == NULL)
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goto err;
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if (!TEST_true(RAND_DRBG_instantiate(drbg, data->persstr, td->persstrlen))
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|| !TEST_true(RAND_DRBG_generate(drbg, buff, td->retbyteslen, 0,
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data->addin1, td->addinlen))
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|| !TEST_true(RAND_DRBG_generate(drbg, buff, td->retbyteslen, 0,
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data->addin2, td->addinlen))
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|| !TEST_true(RAND_DRBG_uninstantiate(drbg))
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|| !TEST_mem_eq(data->retbytes, td->retbyteslen, buff,
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td->retbyteslen))
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failures++;
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err:
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OPENSSL_free(buff);
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RAND_DRBG_uninstantiate(drbg);
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RAND_DRBG_free(drbg);
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return failures == 0;
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}
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/*-
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* Do a single PR_FALSE KAT:
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*
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* Instantiate
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* Reseed
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* Generate Random Bits (pr=false)
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* Generate Random Bits (pr=false)
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* Uninstantiate
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*
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* Return 0 on failure.
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*/
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static int single_kat_pr_false(const struct drbg_kat *td)
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{
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struct drbg_kat_pr_false *data = (struct drbg_kat_pr_false *)td->t;
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RAND_DRBG *drbg = NULL;
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unsigned char *buff = NULL;
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unsigned int flags = 0;
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int failures = 0;
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TEST_CTX t;
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if (td->df != USE_DF)
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flags |= RAND_DRBG_FLAG_CTR_NO_DF;
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if (!TEST_ptr(drbg = RAND_DRBG_new(td->nid, flags, NULL)))
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return 0;
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if (!TEST_true(RAND_DRBG_set_callbacks(drbg, kat_entropy, NULL,
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kat_nonce, NULL))) {
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failures++;
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goto err;
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}
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memset(&t, 0, sizeof(t));
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t.entropy = data->entropyin;
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t.entropylen = td->entropyinlen;
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t.nonce = data->nonce;
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t.noncelen = td->noncelen;
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RAND_DRBG_set_ex_data(drbg, app_data_index, &t);
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buff = OPENSSL_malloc(td->retbyteslen);
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if (buff == NULL)
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goto err;
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if (!TEST_true(RAND_DRBG_instantiate(drbg, data->persstr, td->persstrlen)))
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failures++;
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t.entropy = data->entropyinreseed;
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t.entropylen = td->entropyinlen;
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if (!TEST_true(RAND_DRBG_reseed(drbg, data->addinreseed, td->addinlen, 0))
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|| !TEST_true(RAND_DRBG_generate(drbg, buff, td->retbyteslen, 0,
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data->addin1, td->addinlen))
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|| !TEST_true(RAND_DRBG_generate(drbg, buff, td->retbyteslen, 0,
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data->addin2, td->addinlen))
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|| !TEST_true(RAND_DRBG_uninstantiate(drbg))
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|| !TEST_mem_eq(data->retbytes, td->retbyteslen, buff,
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td->retbyteslen))
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failures++;
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err:
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OPENSSL_free(buff);
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RAND_DRBG_uninstantiate(drbg);
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RAND_DRBG_free(drbg);
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return failures == 0;
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}
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/*-
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* Do a single PR_TRUE KAT:
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*
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* Instantiate
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* Generate Random Bits (pr=true)
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* Generate Random Bits (pr=true)
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* Uninstantiate
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*
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* Return 0 on failure.
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*/
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static int single_kat_pr_true(const struct drbg_kat *td)
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{
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struct drbg_kat_pr_true *data = (struct drbg_kat_pr_true *)td->t;
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RAND_DRBG *drbg = NULL;
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unsigned char *buff = NULL;
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unsigned int flags = 0;
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int failures = 0;
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TEST_CTX t;
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if (td->df != USE_DF)
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flags |= RAND_DRBG_FLAG_CTR_NO_DF;
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if (!TEST_ptr(drbg = RAND_DRBG_new(td->nid, flags, NULL)))
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return 0;
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if (!TEST_true(RAND_DRBG_set_callbacks(drbg, kat_entropy, NULL,
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kat_nonce, NULL))) {
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failures++;
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goto err;
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}
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memset(&t, 0, sizeof(t));
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t.nonce = data->nonce;
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t.noncelen = td->noncelen;
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t.entropy = data->entropyin;
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t.entropylen = td->entropyinlen;
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RAND_DRBG_set_ex_data(drbg, app_data_index, &t);
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buff = OPENSSL_malloc(td->retbyteslen);
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if (buff == NULL)
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goto err;
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if (!TEST_true(RAND_DRBG_instantiate(drbg, data->persstr, td->persstrlen)))
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failures++;
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t.entropy = data->entropyinpr1;
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t.entropylen = td->entropyinlen;
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if (!TEST_true(RAND_DRBG_generate(drbg, buff, td->retbyteslen, 1,
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data->addin1, td->addinlen)))
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failures++;
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t.entropy = data->entropyinpr2;
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t.entropylen = td->entropyinlen;
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if (!TEST_true(RAND_DRBG_generate(drbg, buff, td->retbyteslen, 1,
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data->addin2, td->addinlen))
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|| !TEST_true(RAND_DRBG_uninstantiate(drbg))
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|| !TEST_mem_eq(data->retbytes, td->retbyteslen, buff,
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td->retbyteslen))
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failures++;
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err:
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OPENSSL_free(buff);
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RAND_DRBG_uninstantiate(drbg);
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RAND_DRBG_free(drbg);
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return failures == 0;
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}
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static int test_cavs_kats(int i)
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{
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const struct drbg_kat *td = drbg_test[i];
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int rv = 0;
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switch (td->type) {
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case NO_RESEED:
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if (!single_kat_no_reseed(td))
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goto err;
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break;
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case PR_FALSE:
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if (!single_kat_pr_false(td))
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goto err;
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break;
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case PR_TRUE:
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if (!single_kat_pr_true(td))
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goto err;
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break;
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default: /* cant happen */
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goto err;
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}
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rv = 1;
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err:
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return rv;
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}
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int setup_tests(void)
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{
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app_data_index = RAND_DRBG_get_ex_new_index(0L, NULL, NULL, NULL, NULL);
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ADD_ALL_TESTS(test_cavs_kats, drbg_test_nelem);
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return 1;
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}
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