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