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      1 /*
      2  * Copyright 2020-2021 The OpenSSL Project Authors. All Rights Reserved.
      3  *
      4  * Licensed under the Apache License 2.0 (the "License").  You may not use
      5  * this file except in compliance with the License.  You can obtain a copy
      6  * in the file LICENSE in the source distribution or at
      7  * https://www.openssl.org/source/license.html
      8  */
      9 
     10 #include <string.h> /* memcpy */
     11 #include <openssl/core_names.h>
     12 #include <openssl/param_build.h>
     13 #include "crypto/rsa.h"
     14 #include "rsa_local.h"
     15 
     16 int ossl_rsa_acvp_test_gen_params_new(OSSL_PARAM **dst, const OSSL_PARAM src[])
     17 {
     18     const OSSL_PARAM *p, *s;
     19     OSSL_PARAM *d, *alloc = NULL;
     20     int ret = 1;
     21 
     22     static const OSSL_PARAM settable[] = {
     23         OSSL_PARAM_BN(OSSL_PKEY_PARAM_RSA_TEST_XP, NULL, 0),
     24         OSSL_PARAM_BN(OSSL_PKEY_PARAM_RSA_TEST_XP1, NULL, 0),
     25         OSSL_PARAM_BN(OSSL_PKEY_PARAM_RSA_TEST_XP2, NULL, 0),
     26         OSSL_PARAM_BN(OSSL_PKEY_PARAM_RSA_TEST_XQ, NULL, 0),
     27         OSSL_PARAM_BN(OSSL_PKEY_PARAM_RSA_TEST_XQ1, NULL, 0),
     28         OSSL_PARAM_BN(OSSL_PKEY_PARAM_RSA_TEST_XQ2, NULL, 0),
     29         OSSL_PARAM_END
     30     };
     31 
     32     /* Assume the first element is a required field if this feature is used */
     33     p = OSSL_PARAM_locate_const(src, settable[0].key);
     34     if (p == NULL)
     35         return 1;
     36 
     37     /* Zeroing here means the terminator is always set at the end */
     38     alloc = OPENSSL_zalloc(sizeof(settable));
     39     if (alloc == NULL)
     40         return 0;
     41 
     42     d = alloc;
     43     for (s = settable; s->key != NULL; ++s) {
     44         /* If src contains a key from settable then copy the src to the dest */
     45         p = OSSL_PARAM_locate_const(src, s->key);
     46         if (p != NULL) {
     47             *d = *s; /* shallow copy from the static settable[] */
     48             d->data_size = p->data_size;
     49             d->data = OPENSSL_memdup(p->data, p->data_size);
     50             if (d->data == NULL)
     51                 ret = 0;
     52             ++d;
     53         }
     54     }
     55     if (ret == 0) {
     56         ossl_rsa_acvp_test_gen_params_free(alloc);
     57         alloc = NULL;
     58     }
     59     if (*dst != NULL)
     60         ossl_rsa_acvp_test_gen_params_free(*dst);
     61     *dst = alloc;
     62     return ret;
     63 }
     64 
     65 void ossl_rsa_acvp_test_gen_params_free(OSSL_PARAM *dst)
     66 {
     67     OSSL_PARAM *p;
     68 
     69     if (dst == NULL)
     70         return;
     71 
     72     for (p = dst; p->key != NULL; ++p) {
     73         OPENSSL_free(p->data);
     74         p->data = NULL;
     75     }
     76     OPENSSL_free(dst);
     77 }
     78 
     79 int ossl_rsa_acvp_test_set_params(RSA *r, const OSSL_PARAM params[])
     80 {
     81     RSA_ACVP_TEST *t;
     82     const OSSL_PARAM *p;
     83 
     84     if (r->acvp_test != NULL) {
     85         ossl_rsa_acvp_test_free(r->acvp_test);
     86         r->acvp_test = NULL;
     87     }
     88 
     89     t = OPENSSL_zalloc(sizeof(*t));
     90     if (t == NULL)
     91         return 0;
     92 
     93     /* Set the input parameters */
     94     if ((p = OSSL_PARAM_locate_const(params, OSSL_PKEY_PARAM_RSA_TEST_XP1)) != NULL
     95         && !OSSL_PARAM_get_BN(p, &t->Xp1))
     96         goto err;
     97     if ((p = OSSL_PARAM_locate_const(params, OSSL_PKEY_PARAM_RSA_TEST_XP2)) != NULL
     98         && !OSSL_PARAM_get_BN(p, &t->Xp2))
     99         goto err;
    100     if ((p = OSSL_PARAM_locate_const(params, OSSL_PKEY_PARAM_RSA_TEST_XP)) != NULL
    101         && !OSSL_PARAM_get_BN(p, &t->Xp))
    102         goto err;
    103     if ((p = OSSL_PARAM_locate_const(params, OSSL_PKEY_PARAM_RSA_TEST_XQ1)) != NULL
    104         && !OSSL_PARAM_get_BN(p, &t->Xq1))
    105         goto err;
    106     if ((p = OSSL_PARAM_locate_const(params, OSSL_PKEY_PARAM_RSA_TEST_XQ2)) != NULL
    107         && !OSSL_PARAM_get_BN(p, &t->Xq2))
    108         goto err;
    109     if ((p = OSSL_PARAM_locate_const(params, OSSL_PKEY_PARAM_RSA_TEST_XQ)) != NULL
    110         && !OSSL_PARAM_get_BN(p, &t->Xq))
    111         goto err;
    112 
    113     /* Setup the output parameters */
    114     t->p1 = BN_new();
    115     t->p2 = BN_new();
    116     t->q1 = BN_new();
    117     t->q2 = BN_new();
    118     r->acvp_test = t;
    119     return 1;
    120 err:
    121     ossl_rsa_acvp_test_free(t);
    122     return 0;
    123 }
    124 
    125 int ossl_rsa_acvp_test_get_params(RSA *r, OSSL_PARAM params[])
    126 {
    127     RSA_ACVP_TEST *t;
    128     OSSL_PARAM *p;
    129 
    130     if (r == NULL)
    131         return 0;
    132 
    133     t = r->acvp_test;
    134     if (t != NULL) {
    135         if ((p = OSSL_PARAM_locate(params, OSSL_PKEY_PARAM_RSA_TEST_P1)) != NULL
    136             && !OSSL_PARAM_set_BN(p, t->p1))
    137             return 0;
    138         if ((p = OSSL_PARAM_locate(params, OSSL_PKEY_PARAM_RSA_TEST_P2)) != NULL
    139             && !OSSL_PARAM_set_BN(p, t->p2))
    140             return 0;
    141         if ((p = OSSL_PARAM_locate(params, OSSL_PKEY_PARAM_RSA_TEST_Q1)) != NULL
    142             && !OSSL_PARAM_set_BN(p, t->q1))
    143             return 0;
    144         if ((p = OSSL_PARAM_locate(params, OSSL_PKEY_PARAM_RSA_TEST_Q2)) != NULL
    145             && !OSSL_PARAM_set_BN(p, t->q2))
    146             return 0;
    147     }
    148     return 1;
    149 }
    150 
    151 void ossl_rsa_acvp_test_free(RSA_ACVP_TEST *t)
    152 {
    153     if (t != NULL) {
    154         BN_free(t->Xp1);
    155         BN_free(t->Xp2);
    156         BN_free(t->Xp);
    157         BN_free(t->Xq1);
    158         BN_free(t->Xq2);
    159         BN_free(t->Xq);
    160         BN_free(t->p1);
    161         BN_free(t->p2);
    162         BN_free(t->q1);
    163         BN_free(t->q2);
    164         OPENSSL_free(t);
    165     }
    166 }
    167