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00015 #include "includes.h"
00016 #include <nspr/prtypes.h>
00017 #include <nspr/plarenas.h>
00018 #include <nspr/plhash.h>
00019 #include <nspr/prtime.h>
00020 #include <nspr/prinrval.h>
00021 #include <nspr/prclist.h>
00022 #include <nspr/prlock.h>
00023 #include <nss/sechash.h>
00024 #include <nss/pk11pub.h>
00025
00026 #include "common.h"
00027 #include "crypto.h"
00028
00029
00030 static int nss_hash(HASH_HashType type, unsigned int max_res_len,
00031 size_t num_elem, const u8 *addr[], const size_t *len,
00032 u8 *mac)
00033 {
00034 HASHContext *ctx;
00035 size_t i;
00036 unsigned int reslen;
00037
00038 ctx = HASH_Create(type);
00039 if (ctx == NULL)
00040 return -1;
00041
00042 HASH_Begin(ctx);
00043 for (i = 0; i < num_elem; i++)
00044 HASH_Update(ctx, addr[i], len[i]);
00045 HASH_End(ctx, mac, &reslen, max_res_len);
00046 HASH_Destroy(ctx);
00047
00048 return 0;
00049 }
00050
00051
00052 void des_encrypt(const u8 *clear, const u8 *key, u8 *cypher)
00053 {
00054 PK11Context *ctx = NULL;
00055 PK11SlotInfo *slot;
00056 SECItem *param = NULL;
00057 PK11SymKey *symkey = NULL;
00058 SECItem item;
00059 int olen;
00060 u8 pkey[8], next, tmp;
00061 int i;
00062
00063
00064 next = 0;
00065 for (i = 0; i < 7; i++) {
00066 tmp = key[i];
00067 pkey[i] = (tmp >> i) | next | 1;
00068 next = tmp << (7 - i);
00069 }
00070 pkey[i] = next | 1;
00071
00072 slot = PK11_GetBestSlot(CKM_DES_ECB, NULL);
00073 if (slot == NULL) {
00074 wpa_printf(MSG_ERROR, "NSS: PK11_GetBestSlot failed");
00075 goto out;
00076 }
00077
00078 item.type = siBuffer;
00079 item.data = pkey;
00080 item.len = 8;
00081 symkey = PK11_ImportSymKey(slot, CKM_DES_ECB, PK11_OriginDerive,
00082 CKA_ENCRYPT, &item, NULL);
00083 if (symkey == NULL) {
00084 wpa_printf(MSG_ERROR, "NSS: PK11_ImportSymKey failed");
00085 goto out;
00086 }
00087
00088 param = PK11_GenerateNewParam(CKM_DES_ECB, symkey);
00089 if (param == NULL) {
00090 wpa_printf(MSG_ERROR, "NSS: PK11_GenerateNewParam failed");
00091 goto out;
00092 }
00093
00094 ctx = PK11_CreateContextBySymKey(CKM_DES_ECB, CKA_ENCRYPT,
00095 symkey, param);
00096 if (ctx == NULL) {
00097 wpa_printf(MSG_ERROR, "NSS: PK11_CreateContextBySymKey("
00098 "CKM_DES_ECB) failed");
00099 goto out;
00100 }
00101
00102 if (PK11_CipherOp(ctx, cypher, &olen, 8, (void *) clear, 8) !=
00103 SECSuccess) {
00104 wpa_printf(MSG_ERROR, "NSS: PK11_CipherOp failed");
00105 goto out;
00106 }
00107
00108 out:
00109 if (ctx)
00110 PK11_DestroyContext(ctx, PR_TRUE);
00111 if (symkey)
00112 PK11_FreeSymKey(symkey);
00113 if (param)
00114 SECITEM_FreeItem(param, PR_TRUE);
00115 }
00116
00117
00118 int rc4_skip(const u8 *key, size_t keylen, size_t skip,
00119 u8 *data, size_t data_len)
00120 {
00121 return -1;
00122 }
00123
00124
00125 int md5_vector(size_t num_elem, const u8 *addr[], const size_t *len, u8 *mac)
00126 {
00127 return nss_hash(HASH_AlgMD5, 16, num_elem, addr, len, mac);
00128 }
00129
00130
00131 int sha1_vector(size_t num_elem, const u8 *addr[], const size_t *len, u8 *mac)
00132 {
00133 return nss_hash(HASH_AlgSHA1, 20, num_elem, addr, len, mac);
00134 }
00135
00136
00137 int sha256_vector(size_t num_elem, const u8 *addr[], const size_t *len,
00138 u8 *mac)
00139 {
00140 return nss_hash(HASH_AlgSHA256, 32, num_elem, addr, len, mac);
00141 }
00142
00143
00144 void * aes_encrypt_init(const u8 *key, size_t len)
00145 {
00146 return NULL;
00147 }
00148
00149
00150 void aes_encrypt(void *ctx, const u8 *plain, u8 *crypt)
00151 {
00152 }
00153
00154
00155 void aes_encrypt_deinit(void *ctx)
00156 {
00157 }
00158
00159
00160 void * aes_decrypt_init(const u8 *key, size_t len)
00161 {
00162 return NULL;
00163 }
00164
00165
00166 void aes_decrypt(void *ctx, const u8 *crypt, u8 *plain)
00167 {
00168 }
00169
00170
00171 void aes_decrypt_deinit(void *ctx)
00172 {
00173 }
00174
00175
00176 int crypto_mod_exp(const u8 *base, size_t base_len,
00177 const u8 *power, size_t power_len,
00178 const u8 *modulus, size_t modulus_len,
00179 u8 *result, size_t *result_len)
00180 {
00181 return -1;
00182 }
00183
00184
00185 struct crypto_cipher {
00186 };
00187
00188
00189 struct crypto_cipher * crypto_cipher_init(enum crypto_cipher_alg alg,
00190 const u8 *iv, const u8 *key,
00191 size_t key_len)
00192 {
00193 return NULL;
00194 }
00195
00196
00197 int crypto_cipher_encrypt(struct crypto_cipher *ctx, const u8 *plain,
00198 u8 *crypt, size_t len)
00199 {
00200 return -1;
00201 }
00202
00203
00204 int crypto_cipher_decrypt(struct crypto_cipher *ctx, const u8 *crypt,
00205 u8 *plain, size_t len)
00206 {
00207 return -1;
00208 }
00209
00210
00211 void crypto_cipher_deinit(struct crypto_cipher *ctx)
00212 {
00213 }