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_AES_KEY_WRAP, CKFM_CIPHER_WRAP, 127 SINGLE_PART_ONLY), 128 MECHANISM(PKCS11_CKM_RSA_PKCS_KEY_PAIR_GEN, 129 PKCS11_CKFM_GENERATE_KEY_PAIR, ANY_PART), 130 MECHANISM(PKCS11_CKM_RSA_PKCS, CKFM_CIPHER_WRAP | CKFM_AUTH_NO_RECOVER | 131 CKFM_AUTH_WITH_RECOVER, SINGLE_PART_ONLY), 132 MECHANISM(PKCS11_CKM_RSA_PKCS_OAEP, CKFM_CIPHER_WRAP, 133 SINGLE_PART_ONLY), 134 MECHANISM(PKCS11_CKM_RSA_PKCS_PSS, CKFM_AUTH_NO_RECOVER, 135 SINGLE_PART_ONLY), 136 MECHANISM(PKCS11_CKM_MD5_RSA_PKCS, CKFM_AUTH_NO_RECOVER, ANY_PART), 137 MECHANISM(PKCS11_CKM_SHA1_RSA_PKCS, CKFM_AUTH_NO_RECOVER, ANY_PART), 138 MECHANISM(PKCS11_CKM_SHA1_RSA_PKCS_PSS, CKFM_AUTH_NO_RECOVER, ANY_PART), 139 MECHANISM(PKCS11_CKM_SHA256_RSA_PKCS, CKFM_AUTH_NO_RECOVER, ANY_PART), 140 MECHANISM(PKCS11_CKM_SHA384_RSA_PKCS, CKFM_AUTH_NO_RECOVER, ANY_PART), 141 MECHANISM(PKCS11_CKM_SHA512_RSA_PKCS, CKFM_AUTH_NO_RECOVER, ANY_PART), 142 MECHANISM(PKCS11_CKM_SHA256_RSA_PKCS_PSS, CKFM_AUTH_NO_RECOVER, 143 ANY_PART), 144 MECHANISM(PKCS11_CKM_SHA384_RSA_PKCS_PSS, CKFM_AUTH_NO_RECOVER, 145 ANY_PART), 146 MECHANISM(PKCS11_CKM_SHA512_RSA_PKCS_PSS, CKFM_AUTH_NO_RECOVER, 147 ANY_PART), 148 MECHANISM(PKCS11_CKM_SHA224_RSA_PKCS, CKFM_AUTH_NO_RECOVER, ANY_PART), 149 MECHANISM(PKCS11_CKM_SHA224_RSA_PKCS_PSS, CKFM_AUTH_NO_RECOVER, 150 ANY_PART), 151 }; 152 153 #if CFG_TEE_TA_LOG_LEVEL > 0 154 const char *mechanism_string_id(enum pkcs11_mechanism_id id) 155 { 156 const size_t offset = sizeof("PKCS11_CKM_") - 1; 157 size_t n = 0; 158 159 for (n = 0; n < ARRAY_SIZE(pkcs11_modes); n++) 160 if (pkcs11_modes[n].id == id) 161 return pkcs11_modes[n].string + offset; 162 163 return "Unknown ID"; 164 } 165 #endif /*CFG_TEE_TA_LOG_LEVEL*/ 166 167 /* 168 * Return true if @id is a valid mechanism ID 169 */ 170 bool mechanism_is_valid(enum pkcs11_mechanism_id id) 171 { 172 size_t n = 0; 173 174 for (n = 0; n < ARRAY_SIZE(pkcs11_modes); n++) 175 if (id == pkcs11_modes[n].id) 176 return true; 177 178 return false; 179 } 180 181 /* 182 * Return true if mechanism ID is valid and flags matches PKCS#11 compliancy 183 */ 184 bool __maybe_unused mechanism_flags_complies_pkcs11(uint32_t mechanism_type, 185 uint32_t flags) 186 { 187 size_t n = 0; 188 189 assert((flags & ~ALLOWED_PKCS11_CKFM) == 0); 190 191 for (n = 0; n < ARRAY_SIZE(pkcs11_modes); n++) { 192 if (pkcs11_modes[n].id == mechanism_type) { 193 if (flags & ~pkcs11_modes[n].flags) 194 EMSG("%s flags: 0x%"PRIx32" vs 0x%"PRIx32, 195 id2str_mechanism(mechanism_type), 196 flags, pkcs11_modes[n].flags); 197 198 return (flags & ~pkcs11_modes[n].flags) == 0; 199 } 200 } 201 202 /* Mechanism ID unexpectedly not found */ 203 return false; 204 } 205 206 bool mechanism_is_one_shot_only(uint32_t mechanism_type) 207 { 208 size_t n = 0; 209 210 for (n = 0; n < ARRAY_SIZE(pkcs11_modes); n++) 211 if (pkcs11_modes[n].id == mechanism_type) 212 return pkcs11_modes[n].one_shot; 213 214 /* Mechanism ID unexpectedly not found */ 215 TEE_Panic(PKCS11_RV_NOT_FOUND); 216 /* Dummy return to keep compiler happy */ 217 return false; 218 } 219 220 /* 221 * Field single_part_only is unused from array token_mechanism[], hence 222 * simply use ANY_PART for all mechanism there. 223 */ 224 #define TA_MECHANISM(_label, _flags) MECHANISM((_label), (_flags), ANY_PART) 225 226 /* 227 * Arrays that centralizes the IDs and processing flags for mechanisms 228 * supported by each embedded token. 229 */ 230 const struct pkcs11_mechachism_modes token_mechanism[] = { 231 TA_MECHANISM(PKCS11_CKM_AES_ECB, CKFM_CIPHER_WRAP), 232 TA_MECHANISM(PKCS11_CKM_AES_CBC, CKFM_CIPHER_WRAP), 233 TA_MECHANISM(PKCS11_CKM_AES_CTR, CKFM_CIPHER), 234 TA_MECHANISM(PKCS11_CKM_AES_CTS, CKFM_CIPHER), 235 TA_MECHANISM(PKCS11_CKM_AES_CMAC, CKFM_AUTH_NO_RECOVER), 236 TA_MECHANISM(PKCS11_CKM_AES_CMAC_GENERAL, CKFM_AUTH_NO_RECOVER), 237 TA_MECHANISM(PKCS11_CKM_AES_ECB_ENCRYPT_DATA, PKCS11_CKFM_DERIVE), 238 TA_MECHANISM(PKCS11_CKM_AES_CBC_ENCRYPT_DATA, PKCS11_CKFM_DERIVE), 239 TA_MECHANISM(PKCS11_CKM_ECDH1_DERIVE, PKCS11_CKFM_DERIVE), 240 TA_MECHANISM(PKCS11_CKM_AES_KEY_GEN, PKCS11_CKFM_GENERATE), 241 TA_MECHANISM(PKCS11_CKM_GENERIC_SECRET_KEY_GEN, PKCS11_CKFM_GENERATE), 242 TA_MECHANISM(PKCS11_CKM_MD5, PKCS11_CKFM_DIGEST), 243 TA_MECHANISM(PKCS11_CKM_SHA_1, PKCS11_CKFM_DIGEST), 244 TA_MECHANISM(PKCS11_CKM_SHA224, PKCS11_CKFM_DIGEST), 245 TA_MECHANISM(PKCS11_CKM_SHA256, PKCS11_CKFM_DIGEST), 246 TA_MECHANISM(PKCS11_CKM_SHA384, PKCS11_CKFM_DIGEST), 247 TA_MECHANISM(PKCS11_CKM_SHA512, PKCS11_CKFM_DIGEST), 248 TA_MECHANISM(PKCS11_CKM_MD5_HMAC, CKFM_AUTH_NO_RECOVER), 249 TA_MECHANISM(PKCS11_CKM_SHA_1_HMAC, CKFM_AUTH_NO_RECOVER), 250 TA_MECHANISM(PKCS11_CKM_SHA224_HMAC, CKFM_AUTH_NO_RECOVER), 251 TA_MECHANISM(PKCS11_CKM_SHA256_HMAC, CKFM_AUTH_NO_RECOVER), 252 TA_MECHANISM(PKCS11_CKM_SHA384_HMAC, CKFM_AUTH_NO_RECOVER), 253 TA_MECHANISM(PKCS11_CKM_SHA512_HMAC, CKFM_AUTH_NO_RECOVER), 254 TA_MECHANISM(PKCS11_CKM_MD5_HMAC_GENERAL, CKFM_AUTH_NO_RECOVER), 255 TA_MECHANISM(PKCS11_CKM_SHA_1_HMAC_GENERAL, CKFM_AUTH_NO_RECOVER), 256 TA_MECHANISM(PKCS11_CKM_SHA224_HMAC_GENERAL, CKFM_AUTH_NO_RECOVER), 257 TA_MECHANISM(PKCS11_CKM_SHA256_HMAC_GENERAL, CKFM_AUTH_NO_RECOVER), 258 TA_MECHANISM(PKCS11_CKM_SHA384_HMAC_GENERAL, CKFM_AUTH_NO_RECOVER), 259 TA_MECHANISM(PKCS11_CKM_SHA512_HMAC_GENERAL, CKFM_AUTH_NO_RECOVER), 260 TA_MECHANISM(PKCS11_CKM_EC_KEY_PAIR_GEN, 261 PKCS11_CKFM_GENERATE_KEY_PAIR), 262 TA_MECHANISM(PKCS11_CKM_EC_EDWARDS_KEY_PAIR_GEN, 263 PKCS11_CKFM_GENERATE_KEY_PAIR), 264 TA_MECHANISM(PKCS11_CKM_ECDSA, CKFM_AUTH_NO_RECOVER), 265 TA_MECHANISM(PKCS11_CKM_ECDSA_SHA1, CKFM_AUTH_NO_RECOVER), 266 TA_MECHANISM(PKCS11_CKM_ECDSA_SHA224, CKFM_AUTH_NO_RECOVER), 267 TA_MECHANISM(PKCS11_CKM_ECDSA_SHA256, CKFM_AUTH_NO_RECOVER), 268 TA_MECHANISM(PKCS11_CKM_ECDSA_SHA384, CKFM_AUTH_NO_RECOVER), 269 TA_MECHANISM(PKCS11_CKM_ECDSA_SHA512, CKFM_AUTH_NO_RECOVER), 270 TA_MECHANISM(PKCS11_CKM_EDDSA, CKFM_AUTH_NO_RECOVER), 271 TA_MECHANISM(PKCS11_CKM_RSA_AES_KEY_WRAP, CKFM_CIPHER_WRAP), 272 TA_MECHANISM(PKCS11_CKM_RSA_PKCS_KEY_PAIR_GEN, 273 PKCS11_CKFM_GENERATE_KEY_PAIR), 274 TA_MECHANISM(PKCS11_CKM_RSA_PKCS, CKFM_CIPHER | CKFM_AUTH_NO_RECOVER), 275 TA_MECHANISM(PKCS11_CKM_RSA_PKCS_PSS, CKFM_AUTH_NO_RECOVER), 276 TA_MECHANISM(PKCS11_CKM_MD5_RSA_PKCS, CKFM_AUTH_NO_RECOVER), 277 TA_MECHANISM(PKCS11_CKM_SHA1_RSA_PKCS, CKFM_AUTH_NO_RECOVER), 278 TA_MECHANISM(PKCS11_CKM_RSA_PKCS_OAEP, CKFM_CIPHER), 279 TA_MECHANISM(PKCS11_CKM_SHA1_RSA_PKCS_PSS, CKFM_AUTH_NO_RECOVER), 280 TA_MECHANISM(PKCS11_CKM_SHA256_RSA_PKCS, CKFM_AUTH_NO_RECOVER), 281 TA_MECHANISM(PKCS11_CKM_SHA384_RSA_PKCS, CKFM_AUTH_NO_RECOVER), 282 TA_MECHANISM(PKCS11_CKM_SHA512_RSA_PKCS, CKFM_AUTH_NO_RECOVER), 283 TA_MECHANISM(PKCS11_CKM_SHA256_RSA_PKCS_PSS, CKFM_AUTH_NO_RECOVER), 284 TA_MECHANISM(PKCS11_CKM_SHA384_RSA_PKCS_PSS, CKFM_AUTH_NO_RECOVER), 285 TA_MECHANISM(PKCS11_CKM_SHA512_RSA_PKCS_PSS, CKFM_AUTH_NO_RECOVER), 286 TA_MECHANISM(PKCS11_CKM_SHA224_RSA_PKCS, CKFM_AUTH_NO_RECOVER), 287 TA_MECHANISM(PKCS11_CKM_SHA224_RSA_PKCS_PSS, CKFM_AUTH_NO_RECOVER), 288 }; 289 290 /* 291 * tee_malloc_mechanism_array - Allocate and fill array of supported mechanisms 292 * @count: [in] [out] Pointer to number of mechanism IDs in client resource 293 * Return allocated array of the supported mechanism IDs 294 * 295 * Allocates array with 32bit cells mechanism IDs for the supported ones only 296 * if *@count covers number mechanism IDs exposed. 297 */ 298 uint32_t *tee_malloc_mechanism_list(size_t *out_count) 299 { 300 size_t n = 0; 301 size_t count = 0; 302 uint32_t *array = NULL; 303 304 for (n = 0; n < ARRAY_SIZE(token_mechanism); n++) 305 if (token_mechanism[n].flags) 306 count++; 307 308 if (*out_count >= count) 309 array = TEE_Malloc(count * sizeof(*array), 310 TEE_USER_MEM_HINT_NO_FILL_ZERO); 311 312 *out_count = count; 313 314 if (!array) 315 return NULL; 316 317 for (n = 0; n < ARRAY_SIZE(token_mechanism); n++) { 318 if (token_mechanism[n].flags) { 319 count--; 320 array[count] = token_mechanism[n].id; 321 } 322 } 323 assert(!count); 324 325 return array; 326 } 327 328 uint32_t mechanism_supported_flags(enum pkcs11_mechanism_id id) 329 { 330 size_t n = 0; 331 332 for (n = 0; n < ARRAY_SIZE(token_mechanism); n++) { 333 if (id == token_mechanism[n].id) { 334 uint32_t flags = token_mechanism[n].flags; 335 336 assert(mechanism_flags_complies_pkcs11(id, flags)); 337 return flags; 338 } 339 } 340 341 return 0; 342 } 343 344 void pkcs11_mechanism_supported_key_sizes(uint32_t proc_id, 345 uint32_t *min_key_size, 346 uint32_t *max_key_size) 347 { 348 switch (proc_id) { 349 case PKCS11_CKM_GENERIC_SECRET_KEY_GEN: 350 /* This mechanism expects the keysize to be returned in bits */ 351 *min_key_size = 1; /* in bits */ 352 *max_key_size = 4096; /* in bits */ 353 break; 354 case PKCS11_CKM_MD5_HMAC: 355 case PKCS11_CKM_MD5_HMAC_GENERAL: 356 *min_key_size = 8; 357 *max_key_size = 64; 358 break; 359 case PKCS11_CKM_SHA_1_HMAC: 360 case PKCS11_CKM_SHA_1_HMAC_GENERAL: 361 *min_key_size = 10; 362 *max_key_size = 64; 363 break; 364 case PKCS11_CKM_SHA224_HMAC: 365 case PKCS11_CKM_SHA224_HMAC_GENERAL: 366 *min_key_size = 14; 367 *max_key_size = 64; 368 break; 369 case PKCS11_CKM_SHA256_HMAC: 370 case PKCS11_CKM_SHA256_HMAC_GENERAL: 371 *min_key_size = 24; 372 *max_key_size = 128; 373 break; 374 case PKCS11_CKM_SHA384_HMAC: 375 case PKCS11_CKM_SHA384_HMAC_GENERAL: 376 *min_key_size = 32; 377 *max_key_size = 128; 378 break; 379 case PKCS11_CKM_SHA512_HMAC: 380 case PKCS11_CKM_SHA512_HMAC_GENERAL: 381 *min_key_size = 32; 382 *max_key_size = 128; 383 break; 384 case PKCS11_CKM_AES_KEY_GEN: 385 case PKCS11_CKM_AES_ECB: 386 case PKCS11_CKM_AES_CBC: 387 case PKCS11_CKM_AES_CBC_PAD: 388 case PKCS11_CKM_AES_CTR: 389 case PKCS11_CKM_AES_CTS: 390 case PKCS11_CKM_AES_CMAC: 391 case PKCS11_CKM_AES_CMAC_GENERAL: 392 *min_key_size = 16; 393 *max_key_size = 32; 394 break; 395 case PKCS11_CKM_EC_KEY_PAIR_GEN: 396 case PKCS11_CKM_ECDSA: 397 case PKCS11_CKM_ECDSA_SHA1: 398 case PKCS11_CKM_ECDSA_SHA224: 399 case PKCS11_CKM_ECDSA_SHA256: 400 case PKCS11_CKM_ECDSA_SHA384: 401 case PKCS11_CKM_ECDSA_SHA512: 402 case PKCS11_CKM_ECDH1_DERIVE: 403 *min_key_size = 160; /* in bits */ 404 *max_key_size = 521; /* in bits */ 405 break; 406 case PKCS11_CKM_EC_EDWARDS_KEY_PAIR_GEN: 407 case PKCS11_CKM_EDDSA: 408 *min_key_size = 256; /* in bits */ 409 *max_key_size = 448; /* in bits */ 410 break; 411 case PKCS11_CKM_RSA_PKCS_KEY_PAIR_GEN: 412 case PKCS11_CKM_RSA_PKCS: 413 case PKCS11_CKM_MD5_RSA_PKCS: 414 case PKCS11_CKM_SHA1_RSA_PKCS: 415 case PKCS11_CKM_RSA_PKCS_OAEP: 416 case PKCS11_CKM_SHA1_RSA_PKCS_PSS: 417 case PKCS11_CKM_SHA256_RSA_PKCS: 418 case PKCS11_CKM_SHA384_RSA_PKCS: 419 case PKCS11_CKM_SHA512_RSA_PKCS: 420 case PKCS11_CKM_SHA256_RSA_PKCS_PSS: 421 case PKCS11_CKM_SHA384_RSA_PKCS_PSS: 422 case PKCS11_CKM_SHA512_RSA_PKCS_PSS: 423 case PKCS11_CKM_SHA224_RSA_PKCS: 424 case PKCS11_CKM_SHA224_RSA_PKCS_PSS: 425 *min_key_size = 256; /* in bits */ 426 *max_key_size = 4096; /* in bits */ 427 break; 428 default: 429 *min_key_size = 0; 430 *max_key_size = 0; 431 break; 432 } 433 } 434 435 void mechanism_supported_key_sizes_bytes(uint32_t proc_id, 436 uint32_t *min_key_size, 437 uint32_t *max_key_size) 438 { 439 pkcs11_mechanism_supported_key_sizes(proc_id, min_key_size, 440 max_key_size); 441 442 switch (proc_id) { 443 case PKCS11_CKM_GENERIC_SECRET_KEY_GEN: 444 case PKCS11_CKM_EC_EDWARDS_KEY_PAIR_GEN: 445 case PKCS11_CKM_EC_KEY_PAIR_GEN: 446 case PKCS11_CKM_ECDSA: 447 case PKCS11_CKM_EDDSA: 448 case PKCS11_CKM_ECDSA_SHA1: 449 case PKCS11_CKM_ECDSA_SHA224: 450 case PKCS11_CKM_ECDSA_SHA256: 451 case PKCS11_CKM_ECDSA_SHA384: 452 case PKCS11_CKM_ECDSA_SHA512: 453 case PKCS11_CKM_RSA_PKCS_KEY_PAIR_GEN: 454 /* Size is in bits -> convert to bytes and ceil */ 455 *min_key_size = ROUNDUP(*min_key_size, 8) / 8; 456 *max_key_size = ROUNDUP(*max_key_size, 8) / 8; 457 break; 458 default: 459 /* Size is already in bytes */ 460 break; 461 } 462 } 463