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annotate auth/test/auth_crypto_test.c @ 264:04fee26ecce0

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add authenticated JRPG conversation platform Add reusable auth/session storage, owned conversation recovery, guest quotas, admin workflows, URL-routed conversation UI, mobile frame support, and parallel browser acceptance. Co-authored-by: Copilot <[email protected]>
author MrJuneJune <me@mrjunejune.com>
date Fri, 07 Aug 2026 07:34:12 -0700
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264
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1 #include "auth/auth_crypto.h"
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2
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3 #include <assert.h>
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4 #include <stdio.h>
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5 #include <string.h>
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6
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7 static boolean is_lowercase_hex(const char *text, size_t length)
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8 {
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9 for (size_t i = 0; i < length; ++i)
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10 {
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11 if (!((text[i] >= '0' && text[i] <= '9') ||
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12 (text[i] >= 'a' && text[i] <= 'f')))
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13 {
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14 return FALSE;
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15 }
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16 }
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17 return TRUE;
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18 }
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19
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20 static boolean is_base64url(const char *text, size_t length)
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21 {
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22 for (size_t i = 0; i < length; ++i)
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23 {
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24 if (!((text[i] >= 'A' && text[i] <= 'Z') ||
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25 (text[i] >= 'a' && text[i] <= 'z') ||
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26 (text[i] >= '0' && text[i] <= '9') ||
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27 text[i] == '-' || text[i] == '_'))
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28 {
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29 return FALSE;
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30 }
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31 }
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32 return TRUE;
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33 }
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34
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35 static void test_password_hashes(void)
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36 {
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37 char first[AUTH_CRYPTO_PASSWORD_HASH_ENCODED_SIZE];
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38 char second[AUTH_CRYPTO_PASSWORD_HASH_ENCODED_SIZE];
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39
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40 assert(Auth_Crypto_Password_Hash(
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41 "correct horse battery staple", first, sizeof(first)) == AUTH_CRYPTO_OK);
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42 assert(Auth_Crypto_Password_Hash(
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43 "correct horse battery staple", second, sizeof(second)) == AUTH_CRYPTO_OK);
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44 assert(strcmp(first, second) != 0);
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45 const char *prefix = "zenbu-scrypt$v=1$N=32768$r=8$p=1$";
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46 assert(strncmp(first, prefix, strlen(prefix)) == 0);
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47 assert(memcmp(
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48 first + strlen(prefix),
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49 second + strlen(prefix),
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50 AUTH_CRYPTO_PASSWORD_SALT_BYTES * 2) != 0);
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51 assert(Auth_Crypto_Password_Verify(
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52 "correct horse battery staple", first) == AUTH_CRYPTO_OK);
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53 assert(Auth_Crypto_Password_Verify(
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54 "wrong password", first) == AUTH_CRYPTO_AUTHENTICATION_FAILED);
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55
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56 char malformed[AUTH_CRYPTO_PASSWORD_HASH_ENCODED_SIZE];
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57 strcpy(malformed, first);
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58 malformed[0] = 'x';
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59 assert(Auth_Crypto_Password_Verify(
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60 "correct horse battery staple", malformed) == AUTH_CRYPTO_MALFORMED);
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61 assert(Auth_Crypto_Password_Verify(
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62 "correct horse battery staple", "not-a-password-hash") ==
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63 AUTH_CRYPTO_MALFORMED);
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64
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65 char oversized[AUTH_CRYPTO_PASSWORD_MAX_BYTES + 2];
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66 memset(oversized, 'p', sizeof(oversized));
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67 oversized[sizeof(oversized) - 1] = '\0';
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68 assert(Auth_Crypto_Password_Hash(
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69 oversized, first, sizeof(first)) == AUTH_CRYPTO_PASSWORD_TOO_LONG);
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70 assert(Auth_Crypto_Password_Verify(
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71 oversized, second) == AUTH_CRYPTO_PASSWORD_TOO_LONG);
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72
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73 char too_small[8];
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74 assert(Auth_Crypto_Password_Hash(
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75 "password", too_small, sizeof(too_small)) ==
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76 AUTH_CRYPTO_BUFFER_TOO_SMALL);
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77 }
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78
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79 static void test_tokens(void)
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80 {
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81 char first[AUTH_CRYPTO_TOKEN_SIZE];
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82 char second[AUTH_CRYPTO_TOKEN_SIZE];
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83 assert(Auth_Crypto_Token_Generate(first, sizeof(first)) == AUTH_CRYPTO_OK);
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84 assert(Auth_Crypto_Token_Generate(second, sizeof(second)) == AUTH_CRYPTO_OK);
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85 assert(strlen(first) == AUTH_CRYPTO_TOKEN_SIZE - 1);
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86 assert(is_base64url(first, strlen(first)));
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87 assert(strchr(first, '=') == NULL);
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88 assert(strcmp(first, second) != 0);
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89
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90 char first_digest[AUTH_CRYPTO_TOKEN_DIGEST_SIZE];
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91 char repeated_digest[AUTH_CRYPTO_TOKEN_DIGEST_SIZE];
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92 char second_digest[AUTH_CRYPTO_TOKEN_DIGEST_SIZE];
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93 assert(Auth_Crypto_Token_Digest(
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94 first, first_digest, sizeof(first_digest)) == AUTH_CRYPTO_OK);
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95 assert(Auth_Crypto_Token_Digest(
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96 first, repeated_digest, sizeof(repeated_digest)) == AUTH_CRYPTO_OK);
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97 assert(Auth_Crypto_Token_Digest(
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98 second, second_digest, sizeof(second_digest)) == AUTH_CRYPTO_OK);
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99 assert(strlen(first_digest) == AUTH_CRYPTO_TOKEN_DIGEST_SIZE - 1);
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100 assert(is_lowercase_hex(first_digest, strlen(first_digest)));
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101 assert(strcmp(first_digest, repeated_digest) == 0);
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102 assert(strcmp(first_digest, second_digest) != 0);
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103
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104 const char *digest_vector_token =
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105 "AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA";
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106 assert(Auth_Crypto_Token_Digest(
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107 digest_vector_token, first_digest, sizeof(first_digest)) ==
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108 AUTH_CRYPTO_OK);
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109 assert(strcmp(
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110 first_digest,
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111 "0f007385b6f9d4b7eeb2748605afe1a984a0a3bfa3f014d09e2a784ce9e5cd1a") ==
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112 0);
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113 }
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114
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115 static void test_ip_binding_and_guest_cookies(void)
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116 {
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117 uint8 secret[AUTH_CRYPTO_COOKIE_SECRET_MIN_BYTES] = {
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118 0x1f, 0x8c, 0x32, 0x99, 0x50, 0xe7, 0xa6, 0x21,
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119 0x83, 0x44, 0xab, 0xcd, 0x72, 0x91, 0x05, 0xfe,
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120 0x66, 0x3a, 0x10, 0x28, 0xdd, 0xc0, 0x4b, 0x7e,
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121 0x59, 0x92, 0xb1, 0x13, 0xef, 0x70, 0x46, 0x8a,
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122 };
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123 const char *peer_ip = "2001:db8::1234";
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124 const char *other_ip = "2001:db8::5678";
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125
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126 char ip_digest[AUTH_CRYPTO_IP_BINDING_DIGEST_SIZE];
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127 char repeated_ip_digest[AUTH_CRYPTO_IP_BINDING_DIGEST_SIZE];
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128 char other_ip_digest[AUTH_CRYPTO_IP_BINDING_DIGEST_SIZE];
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129 assert(Auth_Crypto_IP_Binding_Digest(
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130 secret, sizeof(secret), peer_ip, ip_digest, sizeof(ip_digest)) ==
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131 AUTH_CRYPTO_OK);
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132 assert(Auth_Crypto_IP_Binding_Digest(
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133 secret,
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134 sizeof(secret),
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135 peer_ip,
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136 repeated_ip_digest,
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137 sizeof(repeated_ip_digest)) == AUTH_CRYPTO_OK);
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138 assert(Auth_Crypto_IP_Binding_Digest(
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139 secret,
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140 sizeof(secret),
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141 other_ip,
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142 other_ip_digest,
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143 sizeof(other_ip_digest)) == AUTH_CRYPTO_OK);
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144 assert(strlen(ip_digest) == AUTH_CRYPTO_IP_BINDING_DIGEST_SIZE - 1);
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145 assert(is_lowercase_hex(ip_digest, strlen(ip_digest)));
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146 assert(strcmp(ip_digest, repeated_ip_digest) == 0);
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parents:
diff changeset
147 assert(strcmp(ip_digest, other_ip_digest) != 0);
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parents:
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148
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149 const char *guest_uuid = "123e4567-e89b-12d3-a456-426614174000";
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parents:
diff changeset
150 uint64 expiration = 2000000000;
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parents:
diff changeset
151 char cookie[AUTH_CRYPTO_GUEST_COOKIE_SIZE];
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parents:
diff changeset
152 assert(Auth_Crypto_Guest_Cookie_Create(
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parents:
diff changeset
153 secret,
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parents:
diff changeset
154 sizeof(secret),
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parents:
diff changeset
155 guest_uuid,
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parents:
diff changeset
156 expiration,
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MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
157 ip_digest,
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parents:
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158 cookie,
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parents:
diff changeset
159 sizeof(cookie)) == AUTH_CRYPTO_OK);
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parents:
diff changeset
160 assert(strstr(cookie, peer_ip) == NULL);
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parents:
diff changeset
161
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parents:
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162 Auth_Crypto_Guest_Cookie verified;
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MrJuneJune <me@mrjunejune.com>
parents:
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163 assert(Auth_Crypto_Guest_Cookie_Verify(
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MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
164 secret,
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MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
165 sizeof(secret),
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MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
166 cookie,
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parents:
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167 expiration - 1,
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parents:
diff changeset
168 ip_digest,
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parents:
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169 &verified) == AUTH_CRYPTO_OK);
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MrJuneJune <me@mrjunejune.com>
parents:
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170 assert(strcmp(verified.guest_uuid, guest_uuid) == 0);
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MrJuneJune <me@mrjunejune.com>
parents:
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171 assert(verified.expiration_unix == expiration);
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parents:
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172
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173 char tampered[AUTH_CRYPTO_GUEST_COOKIE_SIZE];
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MrJuneJune <me@mrjunejune.com>
parents:
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174 strcpy(tampered, cookie);
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parents:
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175 size_t cookie_length = strlen(tampered);
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parents:
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176 tampered[cookie_length - 1] =
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177 tampered[cookie_length - 1] == '0' ? '1' : '0';
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parents:
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178 assert(Auth_Crypto_Guest_Cookie_Verify(
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parents:
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179 secret,
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parents:
diff changeset
180 sizeof(secret),
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parents:
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181 tampered,
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parents:
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182 expiration - 1,
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parents:
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183 ip_digest,
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parents:
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184 &verified) == AUTH_CRYPTO_AUTHENTICATION_FAILED);
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parents:
diff changeset
185
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parents:
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186 assert(Auth_Crypto_Guest_Cookie_Verify(
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MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
187 secret,
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parents:
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188 sizeof(secret),
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parents:
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189 cookie,
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MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
190 expiration,
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parents:
diff changeset
191 ip_digest,
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MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
192 &verified) == AUTH_CRYPTO_EXPIRED);
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MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
193 assert(Auth_Crypto_Guest_Cookie_Verify(
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MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
194 secret,
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MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
195 sizeof(secret),
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parents:
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196 cookie,
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parents:
diff changeset
197 expiration - 1,
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MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
198 other_ip_digest,
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parents:
diff changeset
199 &verified) == AUTH_CRYPTO_IP_MISMATCH);
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MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
200 assert(Auth_Crypto_Guest_Cookie_Verify(
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MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
201 secret,
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MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
202 sizeof(secret),
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parents:
diff changeset
203 "v1.malformed",
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parents:
diff changeset
204 expiration - 1,
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MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
205 ip_digest,
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MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
206 &verified) == AUTH_CRYPTO_MALFORMED);
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MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
207 }
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parents:
diff changeset
208
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parents:
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209 int main(void)
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parents:
diff changeset
210 {
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parents:
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211 test_password_hashes();
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parents:
diff changeset
212 test_tokens();
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parents:
diff changeset
213 test_ip_binding_and_guest_cookies();
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parents:
diff changeset
214
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parents:
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215 /* Auth_Crypto_Base64url_Encode */
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parents:
diff changeset
216 {
04fee26ecce0 add authenticated JRPG conversation platform
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parents:
diff changeset
217 /* 32 bytes → 43 unpadded base64url chars */
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MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
218 uint8 bytes32[32] = {0};
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parents:
diff changeset
219 char out[AUTH_CRYPTO_TOKEN_SIZE];
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MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
220 size_t n = Auth_Crypto_Base64url_Encode(bytes32, 32, out, sizeof(out));
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MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
221 assert(n == AUTH_CRYPTO_TOKEN_SIZE - 1);
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MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
222 assert(strlen(out) == AUTH_CRYPTO_TOKEN_SIZE - 1);
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MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
223
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parents:
diff changeset
224 /* 3 bytes → 4 chars */
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MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
225 uint8 b3[3] = {0xfb, 0xff, 0xfe};
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MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
226 char o3[8];
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MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
227 assert(Auth_Crypto_Base64url_Encode(b3, 3, o3, sizeof(o3)) == 4);
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MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
228
04fee26ecce0 add authenticated JRPG conversation platform
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parents:
diff changeset
229 /* 1 byte → 2 chars */
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MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
230 uint8 b1[1] = {0x00};
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MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
231 char o1[4];
04fee26ecce0 add authenticated JRPG conversation platform
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
232 assert(Auth_Crypto_Base64url_Encode(b1, 1, o1, sizeof(o1)) == 2);
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MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
233
04fee26ecce0 add authenticated JRPG conversation platform
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
234 /* 2 bytes → 3 chars */
04fee26ecce0 add authenticated JRPG conversation platform
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
235 uint8 b2[2] = {0x00, 0x00};
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MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
236 char o2[4];
04fee26ecce0 add authenticated JRPG conversation platform
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
237 assert(Auth_Crypto_Base64url_Encode(b2, 2, o2, sizeof(o2)) == 3);
04fee26ecce0 add authenticated JRPG conversation platform
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
238
04fee26ecce0 add authenticated JRPG conversation platform
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
239 /* Buffer too small → 0 */
04fee26ecce0 add authenticated JRPG conversation platform
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
240 char oSmall[3];
04fee26ecce0 add authenticated JRPG conversation platform
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
241 assert(Auth_Crypto_Base64url_Encode(bytes32, 32, oSmall, sizeof(oSmall)) == 0);
04fee26ecce0 add authenticated JRPG conversation platform
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
242
04fee26ecce0 add authenticated JRPG conversation platform
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
243 /* Output uses URL-safe alphabet only */
04fee26ecce0 add authenticated JRPG conversation platform
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
244 uint8 bRnd[32];
04fee26ecce0 add authenticated JRPG conversation platform
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
245 for (int i = 0; i < 32; i++) bRnd[i] = (uint8)i;
04fee26ecce0 add authenticated JRPG conversation platform
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
246 char oRnd[AUTH_CRYPTO_TOKEN_SIZE];
04fee26ecce0 add authenticated JRPG conversation platform
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
247 n = Auth_Crypto_Base64url_Encode(bRnd, 32, oRnd, sizeof(oRnd));
04fee26ecce0 add authenticated JRPG conversation platform
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
248 assert(n == 43);
04fee26ecce0 add authenticated JRPG conversation platform
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
249 for (size_t i = 0; i < n; i++) {
04fee26ecce0 add authenticated JRPG conversation platform
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
250 char c = oRnd[i];
04fee26ecce0 add authenticated JRPG conversation platform
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
251 assert((c >= 'A' && c <= 'Z') || (c >= 'a' && c <= 'z') ||
04fee26ecce0 add authenticated JRPG conversation platform
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
252 (c >= '0' && c <= '9') || c == '-' || c == '_');
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MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
253 }
04fee26ecce0 add authenticated JRPG conversation platform
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
254 }
04fee26ecce0 add authenticated JRPG conversation platform
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
255 puts("Auth_Crypto_Base64url_Encode: PASS");
04fee26ecce0 add authenticated JRPG conversation platform
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
256
04fee26ecce0 add authenticated JRPG conversation platform
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
257 puts("auth_crypto_test: PASS");
04fee26ecce0 add authenticated JRPG conversation platform
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
258 return 0;
04fee26ecce0 add authenticated JRPG conversation platform
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
259 }