1 // SPDX-License-Identifier: BSD-2-Clause 2 /* 3 * Copyright (c) 2017-2020, Linaro Limited 4 */ 5 6 #include <assert.h> 7 #include <pkcs11_ta.h> 8 #include <string.h> 9 #include <util.h> 10 #include <tee_api.h> 11 #include <tee_internal_api_extensions.h> 12 13 #include "pkcs11_helpers.h" 14 #include "token_capabilities.h" 15 16 #define ALLOWED_PKCS11_CKFM \ 17 (PKCS11_CKFM_ENCRYPT | PKCS11_CKFM_DECRYPT | \ 18 PKCS11_CKFM_DERIVE | PKCS11_CKFM_DIGEST | \ 19 PKCS11_CKFM_SIGN | PKCS11_CKFM_SIGN_RECOVER | \ 20 PKCS11_CKFM_VERIFY | PKCS11_CKFM_VERIFY_RECOVER | \ 21 PKCS11_CKFM_GENERATE | PKCS11_CKFM_GENERATE_KEY_PAIR | \ 22 PKCS11_CKFM_WRAP | PKCS11_CKFM_UNWRAP) 23 24 /* 25 * Definition of supported processings for a PKCS#11 mechanisms 26 * @id: Mechanism ID 27 * @flags: Valid PKCS11_CKFM_* for a mechanism as per PKCS#11 28 * @one_shot: true of mechanism can be used for a one-short processing 29 * @string: Helper string of the mechanism ID for debug purpose 30 */ 31 struct pkcs11_mechachism_modes { 32 uint32_t id; 33 uint32_t flags; 34 bool one_shot; 35 #if CFG_TEE_TA_LOG_LEVEL > 0 36 const char *string; 37 #endif 38 }; 39 40 #if CFG_TEE_TA_LOG_LEVEL > 0 41 #define MECHANISM(_label, _flags, _single_part) \ 42 { \ 43 .id = _label, \ 44 .one_shot = (_single_part), \ 45 .flags = (_flags), \ 46 .string = #_label, \ 47 } 48 #else 49 #define MECHANISM(_label, _flags, _single_part) \ 50 { \ 51 .id = _label, \ 52 .one_shot = (_single_part), \ 53 .flags = (_flags), \ 54 } 55 #endif 56 57 #define SINGLE_PART_ONLY true 58 #define ANY_PART false 59 60 #define CKFM_CIPHER (PKCS11_CKFM_ENCRYPT | PKCS11_CKFM_DECRYPT) 61 #define CKFM_WRAP_UNWRAP (PKCS11_CKFM_WRAP | PKCS11_CKFM_UNWRAP) 62 #define CKFM_CIPHER_WRAP (CKFM_CIPHER | CKFM_WRAP_UNWRAP) 63 #define CKFM_CIPHER_WRAP_DERIVE (CKFM_CIPHER_WRAP | PKCS11_CKFM_DERIVE) 64 #define CKFM_AUTH_NO_RECOVER (PKCS11_CKFM_SIGN | PKCS11_CKFM_VERIFY) 65 #define CKFM_AUTH_WITH_RECOVER (PKCS11_CKFM_SIGN_RECOVER | \ 66 PKCS11_CKFM_VERIFY_RECOVER) 67 68 /* PKCS#11 specificies permitted operation for each mechanism */ 69 static const struct pkcs11_mechachism_modes pkcs11_modes[] = { 70 /* AES */ 71 MECHANISM(PKCS11_CKM_AES_ECB, CKFM_CIPHER_WRAP, ANY_PART), 72 MECHANISM(PKCS11_CKM_AES_CBC, CKFM_CIPHER_WRAP, ANY_PART), 73 MECHANISM(PKCS11_CKM_AES_CBC_PAD, CKFM_CIPHER_WRAP, ANY_PART), 74 MECHANISM(PKCS11_CKM_AES_CTS, CKFM_CIPHER_WRAP, ANY_PART), 75 MECHANISM(PKCS11_CKM_AES_CTR, CKFM_CIPHER_WRAP, ANY_PART), 76 MECHANISM(PKCS11_CKM_AES_GCM, CKFM_CIPHER_WRAP, ANY_PART), 77 MECHANISM(PKCS11_CKM_AES_CMAC, CKFM_AUTH_NO_RECOVER, ANY_PART), 78 MECHANISM(PKCS11_CKM_AES_CMAC_GENERAL, CKFM_AUTH_NO_RECOVER, ANY_PART), 79 MECHANISM(PKCS11_CKM_AES_ECB_ENCRYPT_DATA, PKCS11_CKFM_DERIVE, 80 ANY_PART), 81 MECHANISM(PKCS11_CKM_AES_CBC_ENCRYPT_DATA, PKCS11_CKFM_DERIVE, 82 ANY_PART), 83 MECHANISM(PKCS11_CKM_AES_KEY_GEN, PKCS11_CKFM_GENERATE, ANY_PART), 84 MECHANISM(PKCS11_CKM_GENERIC_SECRET_KEY_GEN, PKCS11_CKFM_GENERATE, 85 ANY_PART), 86 /* Digest */ 87 MECHANISM(PKCS11_CKM_MD5, PKCS11_CKFM_DIGEST, ANY_PART), 88 MECHANISM(PKCS11_CKM_SHA_1, PKCS11_CKFM_DIGEST, ANY_PART), 89 MECHANISM(PKCS11_CKM_SHA224, PKCS11_CKFM_DIGEST, ANY_PART), 90 MECHANISM(PKCS11_CKM_SHA256, PKCS11_CKFM_DIGEST, ANY_PART), 91 MECHANISM(PKCS11_CKM_SHA384, PKCS11_CKFM_DIGEST, ANY_PART), 92 MECHANISM(PKCS11_CKM_SHA512, PKCS11_CKFM_DIGEST, ANY_PART), 93 /* HMAC */ 94 MECHANISM(PKCS11_CKM_MD5_HMAC, CKFM_AUTH_NO_RECOVER, ANY_PART), 95 MECHANISM(PKCS11_CKM_SHA_1_HMAC, CKFM_AUTH_NO_RECOVER, ANY_PART), 96 MECHANISM(PKCS11_CKM_SHA224_HMAC, CKFM_AUTH_NO_RECOVER, ANY_PART), 97 MECHANISM(PKCS11_CKM_SHA256_HMAC, CKFM_AUTH_NO_RECOVER, ANY_PART), 98 MECHANISM(PKCS11_CKM_SHA384_HMAC, CKFM_AUTH_NO_RECOVER, ANY_PART), 99 MECHANISM(PKCS11_CKM_SHA512_HMAC, CKFM_AUTH_NO_RECOVER, ANY_PART), 100 MECHANISM(PKCS11_CKM_MD5_HMAC_GENERAL, CKFM_AUTH_NO_RECOVER, ANY_PART), 101 MECHANISM(PKCS11_CKM_SHA_1_HMAC_GENERAL, CKFM_AUTH_NO_RECOVER, 102 ANY_PART), 103 MECHANISM(PKCS11_CKM_SHA224_HMAC_GENERAL, CKFM_AUTH_NO_RECOVER, 104 ANY_PART), 105 MECHANISM(PKCS11_CKM_SHA256_HMAC_GENERAL, CKFM_AUTH_NO_RECOVER, 106 ANY_PART), 107 MECHANISM(PKCS11_CKM_SHA384_HMAC_GENERAL, CKFM_AUTH_NO_RECOVER, 108 ANY_PART), 109 MECHANISM(PKCS11_CKM_SHA512_HMAC_GENERAL, CKFM_AUTH_NO_RECOVER, 110 ANY_PART), 111 /* EC */ 112 MECHANISM(PKCS11_CKM_EC_KEY_PAIR_GEN, PKCS11_CKFM_GENERATE_KEY_PAIR, 113 ANY_PART), 114 MECHANISM(PKCS11_CKM_ECDH1_DERIVE, PKCS11_CKFM_DERIVE, 115 ANY_PART), 116 MECHANISM(PKCS11_CKM_ECDSA, CKFM_AUTH_NO_RECOVER, SINGLE_PART_ONLY), 117 MECHANISM(PKCS11_CKM_ECDSA_SHA1, CKFM_AUTH_NO_RECOVER, ANY_PART), 118 MECHANISM(PKCS11_CKM_ECDSA_SHA224, CKFM_AUTH_NO_RECOVER, ANY_PART), 119 MECHANISM(PKCS11_CKM_ECDSA_SHA256, CKFM_AUTH_NO_RECOVER, ANY_PART), 120 MECHANISM(PKCS11_CKM_ECDSA_SHA384, CKFM_AUTH_NO_RECOVER, ANY_PART), 121 MECHANISM(PKCS11_CKM_ECDSA_SHA512, CKFM_AUTH_NO_RECOVER, ANY_PART), 122 /* EDDSA */ 123 MECHANISM(PKCS11_CKM_EC_EDWARDS_KEY_PAIR_GEN, 124 PKCS11_CKFM_GENERATE_KEY_PAIR, ANY_PART), 125 MECHANISM(PKCS11_CKM_EDDSA, CKFM_AUTH_NO_RECOVER, ANY_PART), 126 /* RSA */ 127 MECHANISM(PKCS11_CKM_RSA_AES_KEY_WRAP, CKFM_CIPHER_WRAP, 128 SINGLE_PART_ONLY), 129 MECHANISM(PKCS11_CKM_RSA_PKCS_KEY_PAIR_GEN, 130 PKCS11_CKFM_GENERATE_KEY_PAIR, ANY_PART), 131 MECHANISM(PKCS11_CKM_RSA_PKCS, CKFM_CIPHER_WRAP | CKFM_AUTH_NO_RECOVER | 132 CKFM_AUTH_WITH_RECOVER, SINGLE_PART_ONLY), 133 MECHANISM(PKCS11_CKM_RSA_PKCS_OAEP, CKFM_CIPHER_WRAP, 134 SINGLE_PART_ONLY), 135 MECHANISM(PKCS11_CKM_RSA_PKCS_PSS, CKFM_AUTH_NO_RECOVER, 136 SINGLE_PART_ONLY), 137 MECHANISM(PKCS11_CKM_MD5_RSA_PKCS, CKFM_AUTH_NO_RECOVER, ANY_PART), 138 MECHANISM(PKCS11_CKM_SHA1_RSA_PKCS, CKFM_AUTH_NO_RECOVER, ANY_PART), 139 MECHANISM(PKCS11_CKM_SHA1_RSA_PKCS_PSS, CKFM_AUTH_NO_RECOVER, ANY_PART), 140 MECHANISM(PKCS11_CKM_SHA256_RSA_PKCS, CKFM_AUTH_NO_RECOVER, ANY_PART), 141 MECHANISM(PKCS11_CKM_SHA384_RSA_PKCS, CKFM_AUTH_NO_RECOVER, ANY_PART), 142 MECHANISM(PKCS11_CKM_SHA512_RSA_PKCS, CKFM_AUTH_NO_RECOVER, ANY_PART), 143 MECHANISM(PKCS11_CKM_SHA256_RSA_PKCS_PSS, CKFM_AUTH_NO_RECOVER, 144 ANY_PART), 145 MECHANISM(PKCS11_CKM_SHA384_RSA_PKCS_PSS, CKFM_AUTH_NO_RECOVER, 146 ANY_PART), 147 MECHANISM(PKCS11_CKM_SHA512_RSA_PKCS_PSS, CKFM_AUTH_NO_RECOVER, 148 ANY_PART), 149 MECHANISM(PKCS11_CKM_SHA224_RSA_PKCS, CKFM_AUTH_NO_RECOVER, ANY_PART), 150 MECHANISM(PKCS11_CKM_SHA224_RSA_PKCS_PSS, CKFM_AUTH_NO_RECOVER, 151 ANY_PART), 152 }; 153 154 #if CFG_TEE_TA_LOG_LEVEL > 0 155 const char *mechanism_string_id(enum pkcs11_mechanism_id id) 156 { 157 const size_t offset = sizeof("PKCS11_CKM_") - 1; 158 size_t n = 0; 159 160 for (n = 0; n < ARRAY_SIZE(pkcs11_modes); n++) 161 if (pkcs11_modes[n].id == id) 162 return pkcs11_modes[n].string + offset; 163 164 return "Unknown ID"; 165 } 166 #endif /*CFG_TEE_TA_LOG_LEVEL*/ 167 168 /* 169 * Return true if @id is a valid mechanism ID 170 */ 171 bool mechanism_is_valid(enum pkcs11_mechanism_id id) 172 { 173 size_t n = 0; 174 175 for (n = 0; n < ARRAY_SIZE(pkcs11_modes); n++) 176 if (id == pkcs11_modes[n].id) 177 return true; 178 179 return false; 180 } 181 182 /* 183 * Return true if mechanism ID is valid and flags matches PKCS#11 compliancy 184 */ 185 bool __maybe_unused mechanism_flags_complies_pkcs11(uint32_t mechanism_type, 186 uint32_t flags) 187 { 188 size_t n = 0; 189 190 assert((flags & ~ALLOWED_PKCS11_CKFM) == 0); 191 192 for (n = 0; n < ARRAY_SIZE(pkcs11_modes); n++) { 193 if (pkcs11_modes[n].id == mechanism_type) { 194 if (flags & ~pkcs11_modes[n].flags) 195 EMSG("%s flags: 0x%"PRIx32" vs 0x%"PRIx32, 196 id2str_mechanism(mechanism_type), 197 flags, pkcs11_modes[n].flags); 198 199 return (flags & ~pkcs11_modes[n].flags) == 0; 200 } 201 } 202 203 /* Mechanism ID unexpectedly not found */ 204 return false; 205 } 206 207 bool mechanism_is_one_shot_only(uint32_t mechanism_type) 208 { 209 size_t n = 0; 210 211 for (n = 0; n < ARRAY_SIZE(pkcs11_modes); n++) 212 if (pkcs11_modes[n].id == mechanism_type) 213 return pkcs11_modes[n].one_shot; 214 215 /* Mechanism ID unexpectedly not found */ 216 TEE_Panic(PKCS11_RV_NOT_FOUND); 217 /* Dummy return to keep compiler happy */ 218 return false; 219 } 220 221 /* 222 * Field single_part_only is unused from array token_mechanism[], hence 223 * simply use ANY_PART for all mechanism there. 224 */ 225 #define TA_MECHANISM(_label, _flags) MECHANISM((_label), (_flags), ANY_PART) 226 227 /* 228 * Arrays that centralizes the IDs and processing flags for mechanisms 229 * supported by each embedded token. 230 */ 231 const struct pkcs11_mechachism_modes token_mechanism[] = { 232 TA_MECHANISM(PKCS11_CKM_AES_ECB, CKFM_CIPHER_WRAP), 233 TA_MECHANISM(PKCS11_CKM_AES_CBC, CKFM_CIPHER_WRAP), 234 TA_MECHANISM(PKCS11_CKM_AES_CTR, CKFM_CIPHER), 235 TA_MECHANISM(PKCS11_CKM_AES_GCM, CKFM_CIPHER), 236 TA_MECHANISM(PKCS11_CKM_AES_CTS, CKFM_CIPHER), 237 TA_MECHANISM(PKCS11_CKM_AES_CMAC, CKFM_AUTH_NO_RECOVER), 238 TA_MECHANISM(PKCS11_CKM_AES_CMAC_GENERAL, CKFM_AUTH_NO_RECOVER), 239 TA_MECHANISM(PKCS11_CKM_AES_ECB_ENCRYPT_DATA, PKCS11_CKFM_DERIVE), 240 TA_MECHANISM(PKCS11_CKM_AES_CBC_ENCRYPT_DATA, PKCS11_CKFM_DERIVE), 241 TA_MECHANISM(PKCS11_CKM_ECDH1_DERIVE, PKCS11_CKFM_DERIVE), 242 TA_MECHANISM(PKCS11_CKM_AES_KEY_GEN, PKCS11_CKFM_GENERATE), 243 TA_MECHANISM(PKCS11_CKM_GENERIC_SECRET_KEY_GEN, PKCS11_CKFM_GENERATE), 244 TA_MECHANISM(PKCS11_CKM_MD5, PKCS11_CKFM_DIGEST), 245 TA_MECHANISM(PKCS11_CKM_SHA_1, PKCS11_CKFM_DIGEST), 246 TA_MECHANISM(PKCS11_CKM_SHA224, PKCS11_CKFM_DIGEST), 247 TA_MECHANISM(PKCS11_CKM_SHA256, PKCS11_CKFM_DIGEST), 248 TA_MECHANISM(PKCS11_CKM_SHA384, PKCS11_CKFM_DIGEST), 249 TA_MECHANISM(PKCS11_CKM_SHA512, PKCS11_CKFM_DIGEST), 250 TA_MECHANISM(PKCS11_CKM_MD5_HMAC, CKFM_AUTH_NO_RECOVER), 251 TA_MECHANISM(PKCS11_CKM_SHA_1_HMAC, CKFM_AUTH_NO_RECOVER), 252 TA_MECHANISM(PKCS11_CKM_SHA224_HMAC, CKFM_AUTH_NO_RECOVER), 253 TA_MECHANISM(PKCS11_CKM_SHA256_HMAC, CKFM_AUTH_NO_RECOVER), 254 TA_MECHANISM(PKCS11_CKM_SHA384_HMAC, CKFM_AUTH_NO_RECOVER), 255 TA_MECHANISM(PKCS11_CKM_SHA512_HMAC, CKFM_AUTH_NO_RECOVER), 256 TA_MECHANISM(PKCS11_CKM_MD5_HMAC_GENERAL, CKFM_AUTH_NO_RECOVER), 257 TA_MECHANISM(PKCS11_CKM_SHA_1_HMAC_GENERAL, CKFM_AUTH_NO_RECOVER), 258 TA_MECHANISM(PKCS11_CKM_SHA224_HMAC_GENERAL, CKFM_AUTH_NO_RECOVER), 259 TA_MECHANISM(PKCS11_CKM_SHA256_HMAC_GENERAL, CKFM_AUTH_NO_RECOVER), 260 TA_MECHANISM(PKCS11_CKM_SHA384_HMAC_GENERAL, CKFM_AUTH_NO_RECOVER), 261 TA_MECHANISM(PKCS11_CKM_SHA512_HMAC_GENERAL, CKFM_AUTH_NO_RECOVER), 262 TA_MECHANISM(PKCS11_CKM_EC_KEY_PAIR_GEN, 263 PKCS11_CKFM_GENERATE_KEY_PAIR), 264 TA_MECHANISM(PKCS11_CKM_EC_EDWARDS_KEY_PAIR_GEN, 265 PKCS11_CKFM_GENERATE_KEY_PAIR), 266 TA_MECHANISM(PKCS11_CKM_ECDSA, CKFM_AUTH_NO_RECOVER), 267 TA_MECHANISM(PKCS11_CKM_ECDSA_SHA1, CKFM_AUTH_NO_RECOVER), 268 TA_MECHANISM(PKCS11_CKM_ECDSA_SHA224, CKFM_AUTH_NO_RECOVER), 269 TA_MECHANISM(PKCS11_CKM_ECDSA_SHA256, CKFM_AUTH_NO_RECOVER), 270 TA_MECHANISM(PKCS11_CKM_ECDSA_SHA384, CKFM_AUTH_NO_RECOVER), 271 TA_MECHANISM(PKCS11_CKM_ECDSA_SHA512, CKFM_AUTH_NO_RECOVER), 272 TA_MECHANISM(PKCS11_CKM_EDDSA, CKFM_AUTH_NO_RECOVER), 273 TA_MECHANISM(PKCS11_CKM_RSA_AES_KEY_WRAP, CKFM_CIPHER_WRAP), 274 TA_MECHANISM(PKCS11_CKM_RSA_PKCS_KEY_PAIR_GEN, 275 PKCS11_CKFM_GENERATE_KEY_PAIR), 276 TA_MECHANISM(PKCS11_CKM_RSA_PKCS, CKFM_CIPHER | CKFM_AUTH_NO_RECOVER), 277 TA_MECHANISM(PKCS11_CKM_RSA_PKCS_PSS, CKFM_AUTH_NO_RECOVER), 278 TA_MECHANISM(PKCS11_CKM_MD5_RSA_PKCS, CKFM_AUTH_NO_RECOVER), 279 TA_MECHANISM(PKCS11_CKM_SHA1_RSA_PKCS, CKFM_AUTH_NO_RECOVER), 280 TA_MECHANISM(PKCS11_CKM_RSA_PKCS_OAEP, CKFM_CIPHER), 281 TA_MECHANISM(PKCS11_CKM_SHA1_RSA_PKCS_PSS, CKFM_AUTH_NO_RECOVER), 282 TA_MECHANISM(PKCS11_CKM_SHA256_RSA_PKCS, CKFM_AUTH_NO_RECOVER), 283 TA_MECHANISM(PKCS11_CKM_SHA384_RSA_PKCS, CKFM_AUTH_NO_RECOVER), 284 TA_MECHANISM(PKCS11_CKM_SHA512_RSA_PKCS, CKFM_AUTH_NO_RECOVER), 285 TA_MECHANISM(PKCS11_CKM_SHA256_RSA_PKCS_PSS, CKFM_AUTH_NO_RECOVER), 286 TA_MECHANISM(PKCS11_CKM_SHA384_RSA_PKCS_PSS, CKFM_AUTH_NO_RECOVER), 287 TA_MECHANISM(PKCS11_CKM_SHA512_RSA_PKCS_PSS, CKFM_AUTH_NO_RECOVER), 288 TA_MECHANISM(PKCS11_CKM_SHA224_RSA_PKCS, CKFM_AUTH_NO_RECOVER), 289 TA_MECHANISM(PKCS11_CKM_SHA224_RSA_PKCS_PSS, CKFM_AUTH_NO_RECOVER), 290 }; 291 292 /* 293 * tee_malloc_mechanism_array - Allocate and fill array of supported mechanisms 294 * @count: [in] [out] Pointer to number of mechanism IDs in client resource 295 * Return allocated array of the supported mechanism IDs 296 * 297 * Allocates array with 32bit cells mechanism IDs for the supported ones only 298 * if *@count covers number mechanism IDs exposed. 299 */ 300 uint32_t *tee_malloc_mechanism_list(size_t *out_count) 301 { 302 size_t n = 0; 303 size_t count = 0; 304 uint32_t *array = NULL; 305 306 for (n = 0; n < ARRAY_SIZE(token_mechanism); n++) 307 if (token_mechanism[n].flags) 308 count++; 309 310 if (*out_count >= count) 311 array = TEE_Malloc(count * sizeof(*array), 312 TEE_USER_MEM_HINT_NO_FILL_ZERO); 313 314 *out_count = count; 315 316 if (!array) 317 return NULL; 318 319 for (n = 0; n < ARRAY_SIZE(token_mechanism); n++) { 320 if (token_mechanism[n].flags) { 321 count--; 322 array[count] = token_mechanism[n].id; 323 } 324 } 325 assert(!count); 326 327 return array; 328 } 329 330 uint32_t mechanism_supported_flags(enum pkcs11_mechanism_id id) 331 { 332 size_t n = 0; 333 334 for (n = 0; n < ARRAY_SIZE(token_mechanism); n++) { 335 if (id == token_mechanism[n].id) { 336 uint32_t flags = token_mechanism[n].flags; 337 338 assert(mechanism_flags_complies_pkcs11(id, flags)); 339 return flags; 340 } 341 } 342 343 return 0; 344 } 345 346 void pkcs11_mechanism_supported_key_sizes(uint32_t proc_id, 347 uint32_t *min_key_size, 348 uint32_t *max_key_size) 349 { 350 switch (proc_id) { 351 case PKCS11_CKM_GENERIC_SECRET_KEY_GEN: 352 /* This mechanism expects the keysize to be returned in bits */ 353 *min_key_size = 1; /* in bits */ 354 *max_key_size = 4096; /* in bits */ 355 break; 356 case PKCS11_CKM_MD5_HMAC: 357 case PKCS11_CKM_MD5_HMAC_GENERAL: 358 *min_key_size = 8; 359 *max_key_size = 64; 360 break; 361 case PKCS11_CKM_SHA_1_HMAC: 362 case PKCS11_CKM_SHA_1_HMAC_GENERAL: 363 *min_key_size = 10; 364 *max_key_size = 64; 365 break; 366 case PKCS11_CKM_SHA224_HMAC: 367 case PKCS11_CKM_SHA224_HMAC_GENERAL: 368 *min_key_size = 14; 369 *max_key_size = 64; 370 break; 371 case PKCS11_CKM_SHA256_HMAC: 372 case PKCS11_CKM_SHA256_HMAC_GENERAL: 373 *min_key_size = 24; 374 *max_key_size = 128; 375 break; 376 case PKCS11_CKM_SHA384_HMAC: 377 case PKCS11_CKM_SHA384_HMAC_GENERAL: 378 *min_key_size = 32; 379 *max_key_size = 128; 380 break; 381 case PKCS11_CKM_SHA512_HMAC: 382 case PKCS11_CKM_SHA512_HMAC_GENERAL: 383 *min_key_size = 32; 384 *max_key_size = 128; 385 break; 386 case PKCS11_CKM_AES_KEY_GEN: 387 case PKCS11_CKM_AES_ECB: 388 case PKCS11_CKM_AES_CBC: 389 case PKCS11_CKM_AES_CBC_PAD: 390 case PKCS11_CKM_AES_CTR: 391 case PKCS11_CKM_AES_GCM: 392 case PKCS11_CKM_AES_CTS: 393 case PKCS11_CKM_AES_CMAC: 394 case PKCS11_CKM_AES_CMAC_GENERAL: 395 *min_key_size = 16; 396 *max_key_size = 32; 397 break; 398 case PKCS11_CKM_EC_KEY_PAIR_GEN: 399 case PKCS11_CKM_ECDSA: 400 case PKCS11_CKM_ECDSA_SHA1: 401 case PKCS11_CKM_ECDSA_SHA224: 402 case PKCS11_CKM_ECDSA_SHA256: 403 case PKCS11_CKM_ECDSA_SHA384: 404 case PKCS11_CKM_ECDSA_SHA512: 405 case PKCS11_CKM_ECDH1_DERIVE: 406 *min_key_size = 160; /* in bits */ 407 *max_key_size = 521; /* in bits */ 408 break; 409 case PKCS11_CKM_EC_EDWARDS_KEY_PAIR_GEN: 410 case PKCS11_CKM_EDDSA: 411 *min_key_size = 256; /* in bits */ 412 *max_key_size = 448; /* in bits */ 413 break; 414 case PKCS11_CKM_RSA_PKCS_KEY_PAIR_GEN: 415 case PKCS11_CKM_RSA_PKCS: 416 case PKCS11_CKM_MD5_RSA_PKCS: 417 case PKCS11_CKM_SHA1_RSA_PKCS: 418 case PKCS11_CKM_RSA_PKCS_OAEP: 419 case PKCS11_CKM_SHA1_RSA_PKCS_PSS: 420 case PKCS11_CKM_SHA256_RSA_PKCS: 421 case PKCS11_CKM_SHA384_RSA_PKCS: 422 case PKCS11_CKM_SHA512_RSA_PKCS: 423 case PKCS11_CKM_SHA256_RSA_PKCS_PSS: 424 case PKCS11_CKM_SHA384_RSA_PKCS_PSS: 425 case PKCS11_CKM_SHA512_RSA_PKCS_PSS: 426 case PKCS11_CKM_SHA224_RSA_PKCS: 427 case PKCS11_CKM_SHA224_RSA_PKCS_PSS: 428 *min_key_size = 256; /* in bits */ 429 *max_key_size = 4096; /* in bits */ 430 break; 431 default: 432 *min_key_size = 0; 433 *max_key_size = 0; 434 break; 435 } 436 } 437 438 void mechanism_supported_key_sizes_bytes(uint32_t proc_id, 439 uint32_t *min_key_size, 440 uint32_t *max_key_size) 441 { 442 pkcs11_mechanism_supported_key_sizes(proc_id, min_key_size, 443 max_key_size); 444 445 switch (proc_id) { 446 case PKCS11_CKM_GENERIC_SECRET_KEY_GEN: 447 case PKCS11_CKM_EC_EDWARDS_KEY_PAIR_GEN: 448 case PKCS11_CKM_EC_KEY_PAIR_GEN: 449 case PKCS11_CKM_ECDSA: 450 case PKCS11_CKM_EDDSA: 451 case PKCS11_CKM_ECDSA_SHA1: 452 case PKCS11_CKM_ECDSA_SHA224: 453 case PKCS11_CKM_ECDSA_SHA256: 454 case PKCS11_CKM_ECDSA_SHA384: 455 case PKCS11_CKM_ECDSA_SHA512: 456 case PKCS11_CKM_RSA_PKCS_KEY_PAIR_GEN: 457 /* Size is in bits -> convert to bytes and ceil */ 458 *min_key_size = ROUNDUP(*min_key_size, 8) / 8; 459 *max_key_size = ROUNDUP(*max_key_size, 8) / 8; 460 break; 461 default: 462 /* Size is already in bytes */ 463 break; 464 } 465 } 466