1 | /*
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2 | * Copyright 2021-2023 The OpenSSL Project Authors. All Rights Reserved.
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3 | *
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4 | * Licensed under the Apache License 2.0 (the "License"). You may not use
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5 | * this file except in compliance with the License. You can obtain a copy
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6 | * in the file LICENSE in the source distribution or at
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7 | * https://www.openssl.org/source/license.html
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8 | */
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9 |
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10 | #include <stddef.h>
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11 | #include <string.h>
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12 | #include <openssl/provider.h>
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13 | #include <openssl/params.h>
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14 | #include <openssl/core_names.h>
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15 | #include <openssl/evp.h>
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16 | #include <openssl/store.h>
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17 | #include <openssl/ui.h>
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18 | #include "testutil.h"
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19 | #include "fake_rsaprov.h"
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20 |
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21 | static OSSL_LIB_CTX *libctx = NULL;
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22 | extern int key_deleted; /* From fake_rsaprov.c */
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23 |
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24 | /* Fetch SIGNATURE method using a libctx and propq */
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25 | static int fetch_sig(OSSL_LIB_CTX *ctx, const char *alg, const char *propq,
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26 | OSSL_PROVIDER *expected_prov)
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27 | {
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28 | OSSL_PROVIDER *prov;
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29 | EVP_SIGNATURE *sig = EVP_SIGNATURE_fetch(ctx, "RSA", propq);
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30 | int ret = 0;
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31 |
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32 | if (!TEST_ptr(sig))
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33 | return 0;
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34 |
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35 | if (!TEST_ptr(prov = EVP_SIGNATURE_get0_provider(sig)))
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36 | goto end;
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37 |
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38 | if (!TEST_ptr_eq(prov, expected_prov)) {
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39 | TEST_info("Fetched provider: %s, Expected provider: %s",
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40 | OSSL_PROVIDER_get0_name(prov),
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41 | OSSL_PROVIDER_get0_name(expected_prov));
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42 | goto end;
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43 | }
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44 |
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45 | ret = 1;
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46 | end:
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47 | EVP_SIGNATURE_free(sig);
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48 | return ret;
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49 | }
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50 |
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51 |
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52 | static int test_pkey_sig(void)
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53 | {
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54 | OSSL_PROVIDER *deflt = NULL;
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55 | OSSL_PROVIDER *fake_rsa = NULL;
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56 | int i, ret = 0;
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57 | EVP_PKEY *pkey = NULL;
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58 | EVP_PKEY_CTX *ctx = NULL;
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59 |
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60 | if (!TEST_ptr(fake_rsa = fake_rsa_start(libctx)))
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61 | return 0;
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62 |
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63 | if (!TEST_ptr(deflt = OSSL_PROVIDER_load(libctx, "default")))
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64 | goto end;
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65 |
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66 | /* Do a direct fetch to see it works */
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67 | if (!TEST_true(fetch_sig(libctx, "RSA", "provider=fake-rsa", fake_rsa))
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68 | || !TEST_true(fetch_sig(libctx, "RSA", "?provider=fake-rsa", fake_rsa)))
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69 | goto end;
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70 |
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71 | /* Construct a pkey using precise propq to use our provider */
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72 | if (!TEST_ptr(ctx = EVP_PKEY_CTX_new_from_name(libctx, "RSA",
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73 | "provider=fake-rsa"))
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74 | || !TEST_true(EVP_PKEY_fromdata_init(ctx))
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75 | || !TEST_true(EVP_PKEY_fromdata(ctx, &pkey, EVP_PKEY_KEYPAIR, NULL))
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76 | || !TEST_ptr(pkey))
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77 | goto end;
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78 |
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79 | EVP_PKEY_CTX_free(ctx);
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80 | ctx = NULL;
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81 |
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82 | /* try exercising signature_init ops a few times */
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83 | for (i = 0; i < 3; i++) {
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84 | size_t siglen;
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85 |
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86 | /*
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87 | * Create a signing context for our pkey with optional propq.
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88 | * The sign init should pick both keymgmt and signature from
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89 | * fake-rsa as the key is not exportable.
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90 | */
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91 | if (!TEST_ptr(ctx = EVP_PKEY_CTX_new_from_pkey(libctx, pkey,
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92 | "?provider=default")))
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93 | goto end;
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94 |
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95 | /*
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96 | * If this picks the wrong signature without realizing it
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97 | * we can get a segfault or some internal error. At least watch
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98 | * whether fake-rsa sign_init is exercised by calling sign.
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99 | */
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100 | if (!TEST_int_eq(EVP_PKEY_sign_init(ctx), 1))
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101 | goto end;
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102 |
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103 | if (!TEST_int_eq(EVP_PKEY_sign(ctx, NULL, &siglen, NULL, 0), 1)
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104 | || !TEST_size_t_eq(siglen, 256))
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105 | goto end;
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106 |
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107 | EVP_PKEY_CTX_free(ctx);
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108 | ctx = NULL;
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109 | }
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110 |
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111 | ret = 1;
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112 |
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113 | end:
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114 | fake_rsa_finish(fake_rsa);
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115 | OSSL_PROVIDER_unload(deflt);
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116 | EVP_PKEY_CTX_free(ctx);
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117 | EVP_PKEY_free(pkey);
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118 | return ret;
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119 | }
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120 |
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121 | static int test_alternative_keygen_init(void)
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122 | {
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123 | EVP_PKEY_CTX *ctx = NULL;
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124 | OSSL_PROVIDER *deflt = NULL;
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125 | OSSL_PROVIDER *fake_rsa = NULL;
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126 | const OSSL_PROVIDER *provider;
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127 | const char *provname;
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128 | int ret = 0;
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129 |
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130 | if (!TEST_ptr(deflt = OSSL_PROVIDER_load(libctx, "default")))
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131 | goto end;
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132 |
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133 | /* first try without the fake RSA provider loaded */
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134 | if (!TEST_ptr(ctx = EVP_PKEY_CTX_new_from_name(libctx, "RSA", NULL)))
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135 | goto end;
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136 |
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137 | if (!TEST_int_gt(EVP_PKEY_keygen_init(ctx), 0))
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138 | goto end;
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139 |
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140 | if (!TEST_ptr(provider = EVP_PKEY_CTX_get0_provider(ctx)))
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141 | goto end;
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142 |
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143 | if (!TEST_ptr(provname = OSSL_PROVIDER_get0_name(provider)))
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144 | goto end;
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145 |
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146 | if (!TEST_str_eq(provname, "default"))
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147 | goto end;
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148 |
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149 | EVP_PKEY_CTX_free(ctx);
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150 | ctx = NULL;
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151 |
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152 | /* now load fake RSA and try again */
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153 | if (!TEST_ptr(fake_rsa = fake_rsa_start(libctx)))
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154 | return 0;
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155 |
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156 | if (!TEST_ptr(ctx = EVP_PKEY_CTX_new_from_name(libctx, "RSA",
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157 | "?provider=fake-rsa")))
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158 | goto end;
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159 |
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160 | if (!TEST_int_gt(EVP_PKEY_keygen_init(ctx), 0))
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161 | goto end;
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162 |
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163 | if (!TEST_ptr(provider = EVP_PKEY_CTX_get0_provider(ctx)))
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164 | goto end;
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165 |
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166 | if (!TEST_ptr(provname = OSSL_PROVIDER_get0_name(provider)))
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167 | goto end;
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168 |
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169 | if (!TEST_str_eq(provname, "fake-rsa"))
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170 | goto end;
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171 |
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172 | ret = 1;
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173 |
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174 | end:
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175 | fake_rsa_finish(fake_rsa);
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176 | OSSL_PROVIDER_unload(deflt);
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177 | EVP_PKEY_CTX_free(ctx);
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178 | return ret;
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179 | }
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180 |
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181 | static int test_pkey_eq(void)
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182 | {
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183 | OSSL_PROVIDER *deflt = NULL;
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184 | OSSL_PROVIDER *fake_rsa = NULL;
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185 | EVP_PKEY *pkey_fake = NULL;
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186 | EVP_PKEY *pkey_dflt = NULL;
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187 | EVP_PKEY_CTX *ctx = NULL;
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188 | OSSL_PARAM *params = NULL;
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189 | int ret = 0;
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190 |
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191 | if (!TEST_ptr(fake_rsa = fake_rsa_start(libctx)))
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192 | return 0;
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193 |
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194 | if (!TEST_ptr(deflt = OSSL_PROVIDER_load(libctx, "default")))
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195 | goto end;
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196 |
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197 | /* Construct a public key for fake-rsa */
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198 | if (!TEST_ptr(params = fake_rsa_key_params(0))
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199 | || !TEST_ptr(ctx = EVP_PKEY_CTX_new_from_name(libctx, "RSA",
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200 | "provider=fake-rsa"))
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201 | || !TEST_true(EVP_PKEY_fromdata_init(ctx))
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202 | || !TEST_true(EVP_PKEY_fromdata(ctx, &pkey_fake, EVP_PKEY_PUBLIC_KEY,
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203 | params))
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204 | || !TEST_ptr(pkey_fake))
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205 | goto end;
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206 |
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207 | EVP_PKEY_CTX_free(ctx);
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208 | ctx = NULL;
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209 | OSSL_PARAM_free(params);
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210 | params = NULL;
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211 |
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212 | /* Construct a public key for default */
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213 | if (!TEST_ptr(params = fake_rsa_key_params(0))
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214 | || !TEST_ptr(ctx = EVP_PKEY_CTX_new_from_name(libctx, "RSA",
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215 | "provider=default"))
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216 | || !TEST_true(EVP_PKEY_fromdata_init(ctx))
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217 | || !TEST_true(EVP_PKEY_fromdata(ctx, &pkey_dflt, EVP_PKEY_PUBLIC_KEY,
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218 | params))
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219 | || !TEST_ptr(pkey_dflt))
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220 | goto end;
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221 |
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222 | EVP_PKEY_CTX_free(ctx);
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223 | ctx = NULL;
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224 | OSSL_PARAM_free(params);
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225 | params = NULL;
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226 |
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227 | /* now test for equality */
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228 | if (!TEST_int_eq(EVP_PKEY_eq(pkey_fake, pkey_dflt), 1))
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229 | goto end;
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230 |
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231 | ret = 1;
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232 | end:
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233 | fake_rsa_finish(fake_rsa);
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234 | OSSL_PROVIDER_unload(deflt);
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235 | EVP_PKEY_CTX_free(ctx);
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236 | EVP_PKEY_free(pkey_fake);
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237 | EVP_PKEY_free(pkey_dflt);
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238 | OSSL_PARAM_free(params);
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239 | return ret;
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240 | }
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241 |
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242 | static int test_pkey_store(int idx)
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243 | {
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244 | OSSL_PROVIDER *deflt = NULL;
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245 | OSSL_PROVIDER *fake_rsa = NULL;
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246 | int ret = 0;
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247 | EVP_PKEY *pkey = NULL;
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248 | OSSL_STORE_LOADER *loader = NULL;
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249 | OSSL_STORE_CTX *ctx = NULL;
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250 | OSSL_STORE_INFO *info;
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251 | const char *propq = idx == 0 ? "?provider=fake-rsa"
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252 | : "?provider=default";
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253 |
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254 | /* It's important to load the default provider first for this test */
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255 | if (!TEST_ptr(deflt = OSSL_PROVIDER_load(libctx, "default")))
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256 | goto end;
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257 |
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258 | if (!TEST_ptr(fake_rsa = fake_rsa_start(libctx)))
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259 | goto end;
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260 |
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261 | if (!TEST_ptr(loader = OSSL_STORE_LOADER_fetch(libctx, "fake_rsa",
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262 | propq)))
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263 | goto end;
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264 |
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265 | OSSL_STORE_LOADER_free(loader);
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266 |
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267 | if (!TEST_ptr(ctx = OSSL_STORE_open_ex("fake_rsa:test", libctx, propq,
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268 | NULL, NULL, NULL, NULL, NULL)))
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269 | goto end;
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270 |
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271 | while (!OSSL_STORE_eof(ctx)
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272 | && (info = OSSL_STORE_load(ctx)) != NULL
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273 | && pkey == NULL) {
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274 | if (OSSL_STORE_INFO_get_type(info) == OSSL_STORE_INFO_PKEY)
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275 | pkey = OSSL_STORE_INFO_get1_PKEY(info);
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276 | OSSL_STORE_INFO_free(info);
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277 | info = NULL;
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278 | }
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279 |
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280 | if (!TEST_ptr(pkey) || !TEST_int_eq(EVP_PKEY_is_a(pkey, "RSA"), 1))
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281 | goto end;
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282 |
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283 | ret = 1;
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284 |
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285 | end:
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286 | fake_rsa_finish(fake_rsa);
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287 | OSSL_PROVIDER_unload(deflt);
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288 | OSSL_STORE_close(ctx);
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289 | EVP_PKEY_free(pkey);
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290 | return ret;
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291 | }
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292 |
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293 | static int test_pkey_delete(void)
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294 | {
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295 | OSSL_PROVIDER *deflt = NULL;
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296 | OSSL_PROVIDER *fake_rsa = NULL;
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297 | int ret = 0;
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298 | EVP_PKEY *pkey = NULL;
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299 | OSSL_STORE_LOADER *loader = NULL;
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300 | OSSL_STORE_CTX *ctx = NULL;
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301 | OSSL_STORE_INFO *info;
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302 | const char *propq = "?provider=fake-rsa";
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303 |
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304 | /* It's important to load the default provider first for this test */
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305 | if (!TEST_ptr(deflt = OSSL_PROVIDER_load(libctx, "default")))
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306 | goto end;
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307 |
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308 | if (!TEST_ptr(fake_rsa = fake_rsa_start(libctx)))
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309 | goto end;
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310 |
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311 | if (!TEST_ptr(loader = OSSL_STORE_LOADER_fetch(libctx, "fake_rsa",
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312 | propq)))
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313 | goto end;
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314 |
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315 | OSSL_STORE_LOADER_free(loader);
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316 |
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317 | /* First iteration: load key, check it, delete it */
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318 | if (!TEST_ptr(ctx = OSSL_STORE_open_ex("fake_rsa:test", libctx, propq,
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319 | NULL, NULL, NULL, NULL, NULL)))
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320 | goto end;
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321 |
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322 | while (!OSSL_STORE_eof(ctx)
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323 | && (info = OSSL_STORE_load(ctx)) != NULL
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324 | && pkey == NULL) {
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325 | if (OSSL_STORE_INFO_get_type(info) == OSSL_STORE_INFO_PKEY)
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326 | pkey = OSSL_STORE_INFO_get1_PKEY(info);
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327 | OSSL_STORE_INFO_free(info);
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328 | info = NULL;
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329 | }
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330 |
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331 | if (!TEST_ptr(pkey) || !TEST_int_eq(EVP_PKEY_is_a(pkey, "RSA"), 1))
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332 | goto end;
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333 | EVP_PKEY_free(pkey);
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334 | pkey = NULL;
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335 |
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336 | if (!TEST_int_eq(OSSL_STORE_delete("fake_rsa:test", libctx, propq,
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337 | NULL, NULL, NULL), 1))
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338 | goto end;
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339 | if (!TEST_int_eq(OSSL_STORE_close(ctx), 1))
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340 | goto end;
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341 |
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342 | /* Second iteration: load key should fail */
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343 | if (!TEST_ptr(ctx = OSSL_STORE_open_ex("fake_rsa:test", libctx, propq,
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344 | NULL, NULL, NULL, NULL, NULL)))
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345 | goto end;
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346 |
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347 | while (!OSSL_STORE_eof(ctx)) {
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348 | info = OSSL_STORE_load(ctx);
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349 | if (!TEST_ptr_null(info))
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350 | goto end;
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351 | }
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352 |
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353 | ret = 1;
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354 |
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355 | end:
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356 | fake_rsa_finish(fake_rsa);
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357 | OSSL_PROVIDER_unload(deflt);
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358 | OSSL_STORE_close(ctx);
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359 | fake_rsa_restore_store_state();
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360 | return ret;
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361 | }
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362 |
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363 | static int fake_pw_read_string(UI *ui, UI_STRING *uis)
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364 | {
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365 | const char *passphrase = FAKE_PASSPHRASE;
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366 |
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367 | if (UI_get_string_type(uis) == UIT_PROMPT) {
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368 | UI_set_result(ui, uis, passphrase);
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369 | return 1;
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370 | }
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371 |
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372 | return 0;
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373 | }
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374 |
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375 | static int test_pkey_store_open_ex(void)
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376 | {
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377 | OSSL_PROVIDER *deflt = NULL;
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378 | OSSL_PROVIDER *fake_rsa = NULL;
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379 | int ret = 0;
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380 | EVP_PKEY *pkey = NULL;
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381 | OSSL_STORE_LOADER *loader = NULL;
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382 | OSSL_STORE_CTX *ctx = NULL;
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383 | const char *propq = "?provider=fake-rsa";
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384 | UI_METHOD *ui_method = NULL;
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385 |
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386 | /* It's important to load the default provider first for this test */
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387 | if (!TEST_ptr(deflt = OSSL_PROVIDER_load(libctx, "default")))
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388 | goto end;
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389 |
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390 | if (!TEST_ptr(fake_rsa = fake_rsa_start(libctx)))
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391 | goto end;
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392 |
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393 | if (!TEST_ptr(loader = OSSL_STORE_LOADER_fetch(libctx, "fake_rsa",
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394 | propq)))
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395 | goto end;
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396 |
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397 | OSSL_STORE_LOADER_free(loader);
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398 |
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399 | if (!TEST_ptr(ui_method= UI_create_method("PW Callbacks")))
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400 | goto end;
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401 |
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402 | if (UI_method_set_reader(ui_method, fake_pw_read_string))
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403 | goto end;
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404 |
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405 | if (!TEST_ptr(ctx = OSSL_STORE_open_ex("fake_rsa:openpwtest", libctx, propq,
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406 | ui_method, NULL, NULL, NULL, NULL)))
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407 | goto end;
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408 |
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409 | /* retry w/o ui_method to ensure we actually enter pw checks and fail */
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410 | OSSL_STORE_close(ctx);
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411 | if (!TEST_ptr_null(ctx = OSSL_STORE_open_ex("fake_rsa:openpwtest", libctx,
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412 | propq, NULL, NULL, NULL, NULL,
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413 | NULL)))
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414 | goto end;
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415 |
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416 | ret = 1;
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417 |
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418 | end:
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419 | UI_destroy_method(ui_method);
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420 | fake_rsa_finish(fake_rsa);
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421 | OSSL_PROVIDER_unload(deflt);
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422 | OSSL_STORE_close(ctx);
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423 | EVP_PKEY_free(pkey);
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424 | return ret;
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425 | }
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426 |
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427 | int setup_tests(void)
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428 | {
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429 | libctx = OSSL_LIB_CTX_new();
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430 | if (libctx == NULL)
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431 | return 0;
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432 |
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433 | ADD_TEST(test_pkey_sig);
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434 | ADD_TEST(test_alternative_keygen_init);
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435 | ADD_TEST(test_pkey_eq);
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436 | ADD_ALL_TESTS(test_pkey_store, 2);
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437 | ADD_TEST(test_pkey_delete);
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438 | ADD_TEST(test_pkey_store_open_ex);
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439 |
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440 | return 1;
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441 | }
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442 |
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443 | void cleanup_tests(void)
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444 | {
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445 | OSSL_LIB_CTX_free(libctx);
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446 | }
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