1 /* -*- mode: c; c-basic-offset: 4; indent-tabs-mode: nil -*- */
2 /* plugins/preauth/pkinit/pkinit_kdf_test.c */
4 * Copyright (C) 2011 by the Massachusetts Institute of Technology.
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28 * pkinit_kdf_test.c -- Test to verify the correctness of the function
29 * pkinit_alg_agility_kdf() in pkinit_crypto_openssl, which implements
30 * the Key Derivation Function from the PKInit Algorithm Agility
31 * document, currently draft-ietf-krb-wg-pkinit-alg-agility-04.txt.
34 #include "k5-platform.h"
38 * Initialize a krb5_data from @a s, a constant string. Note @a s is evaluated
39 * multiple times; this is acceptable for constants.
41 #define DATA_FROM_STRING(s) \
42 {0, sizeof(s)-1, (char *) s}
45 /* values from test vectors in the pkinit-alg-agility draft */
49 char party_u_name[] = "lha@SU.SE";
50 char party_v_name[] = "krbtgt/SU.SE@SU.SE";
51 int enctype_aes = ENCTYPE_AES256_CTS_HMAC_SHA1_96;
52 int enctype_des3 = ENCTYPE_DES3_CBC_SHA1;
53 const krb5_data lha_data = DATA_FROM_STRING("lha");
55 krb5_octet key1_hex[] =
56 {0xe6, 0xAB, 0x38, 0xC9, 0x41, 0x3E, 0x03, 0x5B,
57 0xB0, 0x79, 0x20, 0x1E, 0xD0, 0xB6, 0xB7, 0x3D,
58 0x8D, 0x49, 0xA8, 0x14, 0xA7, 0x37, 0xC0, 0x4E,
59 0xE6, 0x64, 0x96, 0x14, 0x20, 0x6F, 0x73, 0xAD};
61 krb5_octet key2_hex[] =
62 {0x77, 0xEF, 0x4E, 0x48, 0xC4, 0x20, 0xAE, 0x3F,
63 0xEC, 0x75, 0x10, 0x9D, 0x79, 0x81, 0x69, 0x7E,
64 0xED, 0x5D, 0x29, 0x5C, 0x90, 0xc6, 0x25, 0x64,
65 0xF7, 0xBF, 0xD1, 0x01, 0xFA, 0x9b, 0xC1, 0xD5};
67 krb5_octet key3_hex[] =
68 {0xD3, 0xC7, 0x8A, 0x79, 0xD6, 0x52, 0x13, 0xEF,
69 0xE9, 0xA8, 0x26, 0xF7, 0x5D, 0xFB, 0x01, 0xF7,
70 0x23, 0x62, 0xFB, 0x16, 0xFB, 0x01, 0xDA, 0xD6};
73 main(int argc, char **argv)
75 /* arguments for calls to pkinit_alg_agility_kdf() */
76 krb5_context context = 0;
78 krb5_algorithm_identifier alg_id;
81 krb5_keyblock key_block;
83 /* other local variables */
85 krb5_enctype enctype = 0;
86 krb5_principal u_principal = NULL;
87 krb5_principal v_principal = NULL;
89 /* initialize variables that get malloc'ed, so cleanup is safe */
90 krb5_init_context (&context);
91 memset(&alg_id, 0, sizeof(alg_id));
92 memset(&as_req, 0, sizeof(as_req));
93 memset(&pk_as_rep, 0, sizeof(pk_as_rep));
94 memset(&key_block, 0, sizeof(key_block));
96 /* set up a 256-byte, ALL-ZEROS secret */
97 if (NULL == (secret.data = malloc(secret_len))) {
98 printf("ERROR in pkinit_kdf_test: Memory allocation failed.");
102 secret.length = secret_len;
103 memset(secret.data, 0, secret_len);
105 /* set-up the partyUInfo and partyVInfo principals */
106 if ((0 != (retval = krb5_parse_name(context, party_u_name,
108 (0 != (retval = krb5_parse_name(context, party_v_name,
110 printf("ERROR in pkinit_kdf_test: Error parsing names, retval = %d",
115 /* set-up the as_req and and pk_as_rep data */
116 memset(twenty_as, 0xaa, sizeof(twenty_as));
117 memset(eighteen_bs, 0xbb, sizeof(eighteen_bs));
118 as_req.length = sizeof(twenty_as);
119 as_req.data = twenty_as;
121 pk_as_rep.length = sizeof(eighteen_bs);
122 pk_as_rep.data = eighteen_bs;
124 /* TEST 1: SHA-1/AES */
125 /* set up algorithm id */
126 alg_id.algorithm.data = (char *)krb5_pkinit_sha1_oid;
127 alg_id.algorithm.length = krb5_pkinit_sha1_oid_len;
129 enctype = enctype_aes;
131 /* call pkinit_alg_agility_kdf() with test vector values*/
132 if (0 != (retval = pkinit_alg_agility_kdf(context, &secret,
134 u_principal, v_principal,
135 enctype, &as_req, &pk_as_rep,
137 printf("ERROR in pkinit_kdf_test: kdf call failed, retval = %d",
142 /* compare key to expected key value */
144 if ((key_block.length == sizeof(key1_hex)) &&
145 (0 == memcmp(key_block.contents, key1_hex, key_block.length))) {
146 printf("SUCCESS: TEST 1 (SHA-1/AES), Correct key value generated.\n");
148 /* free the keyblock contents, so we can use it for the next test */
149 krb5_free_keyblock_contents(context, &key_block);
151 printf("FAILURE: TEST 1 (SHA-1/AES), Incorrect key value generated!\n");
156 /* TEST 2: SHA-256/AES */
157 /* set up algorithm id */
158 alg_id.algorithm.data = (char *)krb5_pkinit_sha256_oid;
159 alg_id.algorithm.length = krb5_pkinit_sha256_oid_len;
161 enctype = enctype_aes;
163 /* call pkinit_alg_agility_kdf() with test vector values*/
164 if (0 != (retval = pkinit_alg_agility_kdf(context, &secret,
166 u_principal, v_principal,
167 enctype, &as_req, &pk_as_rep,
169 printf("ERROR in pkinit_kdf_test: kdf call failed, retval = %d",
174 /* compare key to expected key value */
176 if ((key_block.length == sizeof(key2_hex)) &&
177 (0 == memcmp(key_block.contents, key2_hex, key_block.length))) {
178 printf("SUCCESS: TEST 2 (SHA-256/AES), Correct key value generated.\n");
180 /* free the keyblock contents, so we can use it for the next test */
181 krb5_free_keyblock_contents(context, &key_block);
183 printf("FAILURE: TEST 2 (SHA-256/AES), Incorrect key value generated!\n");
188 /* TEST 3: SHA-512/DES3 */
189 /* set up algorithm id */
190 alg_id.algorithm.data = (char *)krb5_pkinit_sha512_oid;
191 alg_id.algorithm.length = krb5_pkinit_sha512_oid_len;
193 enctype = enctype_des3;
195 /* call pkinit_alg_agility_kdf() with test vector values*/
196 if (0 != (retval = pkinit_alg_agility_kdf(context, &secret,
198 u_principal, v_principal,
199 enctype, &as_req, &pk_as_rep,
201 printf("ERROR in pkinit_kdf_test: kdf call failed, retval = %d",
206 /* compare key to expected key value */
208 if ((key_block.length == sizeof(key3_hex)) &&
209 (0 == memcmp(key_block.contents, key3_hex, key_block.length))) {
210 printf("SUCCESS: TEST 3 (SHA-512/DES3), Correct key value generated.\n");
213 printf("FAILURE: TEST 2 (SHA-512/DES3), Incorrect key value generated!\n");
219 /* release all allocated resources, whether good or bad return */
221 krb5_free_principal(context, u_principal);
222 krb5_free_principal(context, v_principal);
223 krb5_free_keyblock_contents(context, &key_block);