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