DongJin Park | 8eff0eb | 2012-08-31 18:08:58 +0900 | [diff] [blame^] | 1 | /** |
| 2 | * @file tlcTeeKeymaster_if.c |
| 3 | * @brief Contains trustlet connector interface implementations to |
| 4 | * handle key operations with TEE Keymaster trustlet |
| 5 | * |
| 6 | * Copyright Giesecke & Devrient GmbH 2012 |
| 7 | * |
| 8 | * Redistribution and use in source and binary forms, with or without |
| 9 | * modification, are permitted provided that the following conditions |
| 10 | * are met: |
| 11 | * 1. Redistributions of source code must retain the above copyright |
| 12 | * notice, this list of conditions and the following disclaimer. |
| 13 | * 2. Redistributions in binary form must reproduce the above copyright |
| 14 | * notice, this list of conditions and the following disclaimer in the |
| 15 | * documentation and/or other materials provided with the distribution. |
| 16 | * 3. The name of the author may not be used to endorse or promote |
| 17 | * products derived from this software without specific prior |
| 18 | * written permission. |
| 19 | * |
| 20 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS |
| 21 | * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED |
| 22 | * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| 23 | * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY |
| 24 | * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| 25 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE |
| 26 | * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| 27 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
| 28 | * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING |
| 29 | * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
| 30 | * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 31 | */ |
| 32 | |
| 33 | #include <stdlib.h> |
| 34 | |
| 35 | #include "MobiCoreDriverApi.h" |
| 36 | #include "tlTeeKeymaster_Api.h" |
| 37 | #include "tlcTeeKeymaster_log.h" |
| 38 | #include "tlcTeeKeymaster_if.h" |
| 39 | |
| 40 | |
| 41 | /* Global definitions */ |
| 42 | static const uint32_t DEVICE_ID = MC_DEVICE_ID_DEFAULT; |
| 43 | static const mcUuid_t uuid = TEE_KEYMASTER_TL_UUID; |
| 44 | |
| 45 | /** |
| 46 | * TEE_Open |
| 47 | * |
| 48 | * Open session to the TEE Keymaster trustlet |
| 49 | * |
| 50 | * @param pSessionHandle [out] Return pointer to the session handle |
| 51 | */ |
| 52 | static tciMessage_ptr TEE_Open( |
| 53 | mcSessionHandle_t *pSessionHandle |
| 54 | ){ |
| 55 | tciMessage_ptr pTci = NULL; |
| 56 | mcResult_t mcRet; |
| 57 | |
| 58 | do |
| 59 | { |
| 60 | |
| 61 | /* Validate session handle */ |
| 62 | if (!pSessionHandle) |
| 63 | { |
| 64 | LOG_E("TEE_Open(): Invalid session handle\n"); |
| 65 | break; |
| 66 | } |
| 67 | |
| 68 | /* Initialize session handle data */ |
| 69 | bzero(pSessionHandle, sizeof(mcSessionHandle_t)); |
| 70 | |
| 71 | /* Open MobiCore device */ |
| 72 | mcRet = mcOpenDevice(DEVICE_ID); |
| 73 | if (MC_DRV_OK != mcRet) |
| 74 | { |
| 75 | LOG_E("TEE_Open(): mcOpenDevice returned: %d\n", mcRet); |
| 76 | break; |
| 77 | } |
| 78 | |
| 79 | /* Allocating WSM for TCI */ |
| 80 | mcRet = mcMallocWsm(DEVICE_ID, 0, sizeof(tciMessage_t), (uint8_t **) &pTci, 0); |
| 81 | if (MC_DRV_OK != mcRet) |
| 82 | { |
| 83 | LOG_E("TEE_Open(): mcMallocWsm returned: %d\n", mcRet); |
| 84 | break; |
| 85 | } |
| 86 | |
| 87 | /* Open session the TEE Keymaster trustlet */ |
| 88 | pSessionHandle->deviceId = DEVICE_ID; |
| 89 | mcRet = mcOpenSession(pSessionHandle, |
| 90 | &uuid, |
| 91 | (uint8_t *) pTci, |
| 92 | (uint32_t) sizeof(tciMessage_t)); |
| 93 | if (MC_DRV_OK != mcRet) |
| 94 | { |
| 95 | LOG_E("TEE_Open(): mcOpenSession returned: %d\n", mcRet); |
| 96 | break; |
| 97 | } |
| 98 | |
| 99 | } while (false); |
| 100 | |
| 101 | return pTci; |
| 102 | } |
| 103 | |
| 104 | |
| 105 | /** |
| 106 | * TEE_Close |
| 107 | * |
| 108 | * Close session to the TEE Keymaster trustlet |
| 109 | * |
| 110 | * @param sessionHandle [in] Session handle |
| 111 | */ |
| 112 | static void TEE_Close( |
| 113 | mcSessionHandle_t sessionHandle |
| 114 | ){ |
| 115 | teeResult_t ret = TEE_ERR_NONE; |
| 116 | mcResult_t mcRet; |
| 117 | |
| 118 | do { |
| 119 | |
| 120 | /* Close session */ |
| 121 | mcRet = mcCloseSession(&sessionHandle); |
| 122 | if (MC_DRV_OK != mcRet) |
| 123 | { |
| 124 | LOG_E("TEE_Close(): mcCloseSession returned: %d\n", mcRet); |
| 125 | ret = TEE_ERR_SESSION; |
| 126 | break; |
| 127 | } |
| 128 | |
| 129 | /* Close MobiCore device */ |
| 130 | mcRet = mcCloseDevice(DEVICE_ID); |
| 131 | if (MC_DRV_OK != mcRet) |
| 132 | { |
| 133 | LOG_E("TEE_Close(): mcCloseDevice returned: %d\n", mcRet); |
| 134 | ret = TEE_ERR_MC_DEVICE; |
| 135 | } |
| 136 | |
| 137 | } while (false); |
| 138 | } |
| 139 | |
| 140 | |
| 141 | /** |
| 142 | * TEE_RSAGenerateKeyPair |
| 143 | * |
| 144 | * Generates RSA key pair and returns key pair data as wrapped object |
| 145 | * |
| 146 | * @param keyType [in] Key pair type. RSA or RSACRT |
| 147 | * @param keyData [in] Pointer to the key data buffer |
| 148 | * @param keyDataLength [in] Key data buffer length |
| 149 | * @param keySize [in] Key size |
| 150 | * @param exponent [in] Exponent number |
| 151 | * @param soLen [out] Key data secure object length |
| 152 | */ |
| 153 | teeResult_t TEE_RSAGenerateKeyPair( |
| 154 | teeRsaKeyPairType_t keyType, |
| 155 | uint8_t* keyData, |
| 156 | uint32_t keyDataLength, |
| 157 | uint32_t keySize, |
| 158 | uint32_t exponent, |
| 159 | uint32_t* soLen |
| 160 | ){ |
| 161 | teeResult_t ret = TEE_ERR_NONE; |
| 162 | tciMessage_ptr pTci = NULL; |
| 163 | mcSessionHandle_t sessionHandle; |
| 164 | mcBulkMap_t mapInfo; |
| 165 | mcResult_t mcRet; |
| 166 | |
| 167 | do { |
| 168 | |
| 169 | /* Open session to the trustlet */ |
| 170 | pTci = TEE_Open(&sessionHandle); |
| 171 | if (!pTci) { |
| 172 | ret = TEE_ERR_MEMORY; |
| 173 | break; |
| 174 | } |
| 175 | |
| 176 | /* Map memory to the secure world */ |
| 177 | mcRet = mcMap(&sessionHandle, keyData, keyDataLength, &mapInfo); |
| 178 | if (MC_DRV_OK != mcRet) { |
| 179 | ret = TEE_ERR_MAP; |
| 180 | break; |
| 181 | } |
| 182 | |
| 183 | /* Update TCI buffer */ |
| 184 | pTci->command.header.commandId = CMD_ID_TEE_RSA_GEN_KEY_PAIR; |
| 185 | pTci->rsagenkey.type = keyType; |
| 186 | pTci->rsagenkey.keysize = keySize; |
| 187 | pTci->rsagenkey.keydata = (uint32_t)mapInfo.sVirtualAddr; |
| 188 | pTci->rsagenkey.keydatalen = keyDataLength; |
| 189 | pTci->rsagenkey.exponent = exponent; |
| 190 | |
| 191 | /* Notify the trustlet */ |
| 192 | mcRet = mcNotify(&sessionHandle); |
| 193 | if (MC_DRV_OK != mcRet) |
| 194 | { |
| 195 | ret = TEE_ERR_NOTIFICATION; |
| 196 | break; |
| 197 | } |
| 198 | |
| 199 | /* Wait for response from the trustlet */ |
| 200 | if (MC_DRV_OK != mcWaitNotification(&sessionHandle, MC_INFINITE_TIMEOUT)) |
| 201 | { |
| 202 | ret = TEE_ERR_NOTIFICATION; |
| 203 | break; |
| 204 | } |
| 205 | |
| 206 | /* Unmap memory */ |
| 207 | mcRet = mcUnmap(&sessionHandle, keyData, &mapInfo); |
| 208 | if (MC_DRV_OK != mcRet) |
| 209 | { |
| 210 | ret = TEE_ERR_MAP; |
| 211 | break; |
| 212 | } |
| 213 | |
| 214 | if (RET_OK != pTci->response.header.returnCode) |
| 215 | { |
| 216 | LOG_E("TEE_RSAGenerateKeyPair(): TEE Keymaster trustlet returned: 0x%.8x\n", |
| 217 | pTci->response.header.returnCode); |
| 218 | ret = TEE_ERR_FAIL; |
| 219 | break; |
| 220 | } |
| 221 | |
| 222 | /* Update secure object length */ |
| 223 | *soLen = pTci->rsagenkey.solen; |
| 224 | |
| 225 | } while (false); |
| 226 | |
| 227 | /* Close session to the trustlet */ |
| 228 | TEE_Close(sessionHandle); |
| 229 | |
| 230 | return ret; |
| 231 | } |
| 232 | |
| 233 | |
| 234 | /** |
| 235 | * TEE_RSASign |
| 236 | * |
| 237 | * Signs given plain data and returns signature data |
| 238 | * |
| 239 | * @param keyData [in] Pointer to key data buffer |
| 240 | * @param keyDataLength [in] Key data buffer length |
| 241 | * @param plainData [in] Pointer to plain data to be signed |
| 242 | * @param plainDataLength [in] Plain data length |
| 243 | * @param signatureData [out] Pointer to signature data |
| 244 | * @param signatureDataLength [out] Signature data length |
| 245 | * @param algorithm [in] RSA signature algorithm |
| 246 | */ |
| 247 | teeResult_t TEE_RSASign( |
| 248 | const uint8_t* keyData, |
| 249 | const uint32_t keyDataLength, |
| 250 | const uint8_t* plainData, |
| 251 | const uint32_t plainDataLength, |
| 252 | uint8_t* signatureData, |
| 253 | uint32_t* signatureDataLength, |
| 254 | teeRsaSigAlg_t algorithm |
| 255 | ){ |
| 256 | teeResult_t ret = TEE_ERR_NONE; |
| 257 | tciMessage_ptr pTci = NULL; |
| 258 | mcSessionHandle_t sessionHandle; |
| 259 | mcBulkMap_t keyMapInfo; |
| 260 | mcBulkMap_t plainMapInfo; |
| 261 | mcBulkMap_t signatureMapInfo; |
| 262 | mcResult_t mcRet; |
| 263 | |
| 264 | do { |
| 265 | |
| 266 | /* Open session to the trustlet */ |
| 267 | pTci = TEE_Open(&sessionHandle); |
| 268 | if (!pTci) { |
| 269 | ret = TEE_ERR_MEMORY; |
| 270 | break; |
| 271 | } |
| 272 | |
| 273 | /* Map memory to the secure world */ |
| 274 | mcRet = mcMap(&sessionHandle, (void*)keyData, keyDataLength, &keyMapInfo); |
| 275 | if (MC_DRV_OK != mcRet) { |
| 276 | ret = TEE_ERR_MAP; |
| 277 | break; |
| 278 | } |
| 279 | |
| 280 | mcRet = mcMap(&sessionHandle, (void*)plainData, plainDataLength, &plainMapInfo); |
| 281 | if (MC_DRV_OK != mcRet) { |
| 282 | ret = TEE_ERR_MAP; |
| 283 | break; |
| 284 | } |
| 285 | |
| 286 | mcRet = mcMap(&sessionHandle, (void*)signatureData, *signatureDataLength, &signatureMapInfo); |
| 287 | if (MC_DRV_OK != mcRet) { |
| 288 | ret = TEE_ERR_MAP; |
| 289 | break; |
| 290 | } |
| 291 | |
| 292 | /* Update TCI buffer */ |
| 293 | pTci->command.header.commandId = CMD_ID_TEE_RSA_SIGN; |
| 294 | pTci->rsasign.keydata = (uint32_t)keyMapInfo.sVirtualAddr; |
| 295 | pTci->rsasign.keydatalen = keyDataLength; |
| 296 | |
| 297 | pTci->rsasign.plaindata = (uint32_t)plainMapInfo.sVirtualAddr; |
| 298 | pTci->rsasign.plaindatalen = plainDataLength; |
| 299 | |
| 300 | pTci->rsasign.signaturedata = (uint32_t)signatureMapInfo.sVirtualAddr; |
| 301 | pTci->rsasign.signaturedatalen = *signatureDataLength; |
| 302 | |
| 303 | pTci->rsasign.algorithm = algorithm; |
| 304 | |
| 305 | /* Notify the trustlet */ |
| 306 | mcRet = mcNotify(&sessionHandle); |
| 307 | if (MC_DRV_OK != mcRet) |
| 308 | { |
| 309 | ret = TEE_ERR_NOTIFICATION; |
| 310 | break; |
| 311 | } |
| 312 | |
| 313 | /* Wait for response from the trustlet */ |
| 314 | if (MC_DRV_OK != mcWaitNotification(&sessionHandle, MC_INFINITE_TIMEOUT)) |
| 315 | { |
| 316 | ret = TEE_ERR_NOTIFICATION; |
| 317 | break; |
| 318 | } |
| 319 | |
| 320 | /* Unmap memory */ |
| 321 | mcRet = mcUnmap(&sessionHandle, (void*)keyData, &keyMapInfo); |
| 322 | if (MC_DRV_OK != mcRet) |
| 323 | { |
| 324 | ret = TEE_ERR_MAP; |
| 325 | break; |
| 326 | } |
| 327 | |
| 328 | mcRet = mcUnmap(&sessionHandle, (void*)plainData, &plainMapInfo); |
| 329 | if (MC_DRV_OK != mcRet) |
| 330 | { |
| 331 | ret = TEE_ERR_MAP; |
| 332 | break; |
| 333 | } |
| 334 | |
| 335 | mcRet = mcUnmap(&sessionHandle, (void*)signatureData, &signatureMapInfo); |
| 336 | if (MC_DRV_OK != mcRet) |
| 337 | { |
| 338 | ret = TEE_ERR_MAP; |
| 339 | break; |
| 340 | } |
| 341 | |
| 342 | if (RET_OK != pTci->response.header.returnCode) |
| 343 | { |
| 344 | LOG_E("TEE_RSASign(): TEE Keymaster trustlet returned: 0x%.8x\n", |
| 345 | pTci->response.header.returnCode); |
| 346 | ret = TEE_ERR_FAIL; |
| 347 | break; |
| 348 | } |
| 349 | |
| 350 | /* Retrieve signature data length */ |
| 351 | *signatureDataLength = pTci->rsasign.signaturedatalen; |
| 352 | |
| 353 | } while (false); |
| 354 | |
| 355 | /* Close session to the trustlet */ |
| 356 | TEE_Close(sessionHandle); |
| 357 | |
| 358 | return ret; |
| 359 | } |
| 360 | |
| 361 | |
| 362 | /** |
| 363 | * TEE_RSAVerify |
| 364 | * |
| 365 | * Verifies given data with RSA public key and return status |
| 366 | * |
| 367 | * @param keyData [in] Pointer to key data buffer |
| 368 | * @param keyDataLength [in] Key data buffer length |
| 369 | * @param plainData [in] Pointer to plain data to be signed |
| 370 | * @param plainDataLength [in] Plain data length |
| 371 | * @param signatureData [in] Pointer to signed data |
| 372 | * @param signatureData [in] Plain data length |
| 373 | * @param algorithm [in] RSA signature algorithm |
| 374 | * @param validity [out] Signature validity |
| 375 | */ |
| 376 | teeResult_t TEE_RSAVerify( |
| 377 | const uint8_t* keyData, |
| 378 | const uint32_t keyDataLength, |
| 379 | const uint8_t* plainData, |
| 380 | const uint32_t plainDataLength, |
| 381 | const uint8_t* signatureData, |
| 382 | const uint32_t signatureDataLength, |
| 383 | teeRsaSigAlg_t algorithm, |
| 384 | bool *validity |
| 385 | ){ |
| 386 | teeResult_t ret = TEE_ERR_NONE; |
| 387 | tciMessage_ptr pTci = NULL; |
| 388 | mcSessionHandle_t sessionHandle; |
| 389 | mcBulkMap_t keyMapInfo; |
| 390 | mcBulkMap_t plainMapInfo; |
| 391 | mcBulkMap_t signatureMapInfo; |
| 392 | mcResult_t mcRet; |
| 393 | |
| 394 | do { |
| 395 | |
| 396 | /* Open session to the trustlet */ |
| 397 | pTci = TEE_Open(&sessionHandle); |
| 398 | if (!pTci) { |
| 399 | ret = TEE_ERR_MEMORY; |
| 400 | break; |
| 401 | } |
| 402 | |
| 403 | /* Map memory to the secure world */ |
| 404 | mcRet = mcMap(&sessionHandle, (void*)keyData, keyDataLength, &keyMapInfo); |
| 405 | if (MC_DRV_OK != mcRet) { |
| 406 | ret = TEE_ERR_MAP; |
| 407 | break; |
| 408 | } |
| 409 | |
| 410 | mcRet = mcMap(&sessionHandle, (void*)plainData, plainDataLength, &plainMapInfo); |
| 411 | if (MC_DRV_OK != mcRet) { |
| 412 | ret = TEE_ERR_MAP; |
| 413 | break; |
| 414 | } |
| 415 | |
| 416 | mcRet = mcMap(&sessionHandle, (void*)signatureData, signatureDataLength, &signatureMapInfo); |
| 417 | if (MC_DRV_OK != mcRet) { |
| 418 | ret = TEE_ERR_MAP; |
| 419 | break; |
| 420 | } |
| 421 | |
| 422 | /* Update TCI buffer */ |
| 423 | pTci->command.header.commandId = CMD_ID_TEE_RSA_VERIFY; |
| 424 | pTci->rsaverify.keydata = (uint32_t)keyMapInfo.sVirtualAddr; |
| 425 | pTci->rsaverify.keydatalen = keyDataLength; |
| 426 | |
| 427 | pTci->rsaverify.plaindata = (uint32_t)plainMapInfo.sVirtualAddr; |
| 428 | pTci->rsaverify.plaindatalen = plainDataLength; |
| 429 | |
| 430 | pTci->rsaverify.signaturedata = (uint32_t)signatureMapInfo.sVirtualAddr; |
| 431 | pTci->rsaverify.signaturedatalen = signatureDataLength; |
| 432 | |
| 433 | pTci->rsaverify.algorithm = algorithm; |
| 434 | pTci->rsaverify.validity = false; |
| 435 | |
| 436 | /* Notify the trustlet */ |
| 437 | mcRet = mcNotify(&sessionHandle); |
| 438 | if (MC_DRV_OK != mcRet) |
| 439 | { |
| 440 | ret = TEE_ERR_NOTIFICATION; |
| 441 | break; |
| 442 | } |
| 443 | |
| 444 | /* Wait for response from the trustlet */ |
| 445 | if (MC_DRV_OK != mcWaitNotification(&sessionHandle, MC_INFINITE_TIMEOUT)) |
| 446 | { |
| 447 | ret = TEE_ERR_NOTIFICATION; |
| 448 | break; |
| 449 | } |
| 450 | |
| 451 | /* Unmap memory */ |
| 452 | mcRet = mcUnmap(&sessionHandle, (void*)keyData, &keyMapInfo); |
| 453 | if (MC_DRV_OK != mcRet) |
| 454 | { |
| 455 | ret = TEE_ERR_MAP; |
| 456 | break; |
| 457 | } |
| 458 | |
| 459 | mcRet = mcUnmap(&sessionHandle, (void*)plainData, &plainMapInfo); |
| 460 | if (MC_DRV_OK != mcRet) |
| 461 | { |
| 462 | ret = TEE_ERR_MAP; |
| 463 | break; |
| 464 | } |
| 465 | |
| 466 | mcRet = mcUnmap(&sessionHandle, (void*)signatureData, &signatureMapInfo); |
| 467 | if (MC_DRV_OK != mcRet) |
| 468 | { |
| 469 | ret = TEE_ERR_MAP; |
| 470 | break; |
| 471 | } |
| 472 | |
| 473 | if (RET_OK != pTci->response.header.returnCode) |
| 474 | { |
| 475 | LOG_E("TEE_RSAVerify(): TEE Keymaster trustlet returned: 0x%.8x\n", |
| 476 | pTci->response.header.returnCode); |
| 477 | ret = TEE_ERR_FAIL; |
| 478 | break; |
| 479 | } |
| 480 | |
| 481 | *validity = pTci->rsaverify.validity; |
| 482 | |
| 483 | } while (false); |
| 484 | |
| 485 | /* Close session to the trustlet */ |
| 486 | TEE_Close(sessionHandle); |
| 487 | |
| 488 | return ret; |
| 489 | } |
| 490 | |
| 491 | |
| 492 | /** |
| 493 | * TEE_HMACKeyGenerate |
| 494 | * |
| 495 | * Generates random key for HMAC calculation and returns key data as wrapped object |
| 496 | * (key is encrypted) |
| 497 | * |
| 498 | * @param keyData [out] Pointer to key data |
| 499 | * @param keyDataLength [in] Key data buffer length |
| 500 | * @param soLen [out] Key data secure object length |
| 501 | */ |
| 502 | teeResult_t TEE_HMACKeyGenerate( |
| 503 | uint8_t* keyData, |
| 504 | uint32_t keyDataLength, |
| 505 | uint32_t* soLen |
| 506 | ){ |
| 507 | teeResult_t ret = TEE_ERR_NONE; |
| 508 | tciMessage_ptr pTci = NULL; |
| 509 | mcSessionHandle_t sessionHandle; |
| 510 | mcBulkMap_t keyMapInfo; |
| 511 | mcResult_t mcRet; |
| 512 | |
| 513 | do { |
| 514 | |
| 515 | /* Open session to the trustlet */ |
| 516 | pTci = TEE_Open(&sessionHandle); |
| 517 | if (!pTci) { |
| 518 | ret = TEE_ERR_MEMORY; |
| 519 | break; |
| 520 | } |
| 521 | |
| 522 | /* Map memory to the secure world */ |
| 523 | mcRet = mcMap(&sessionHandle, (void*)keyData, keyDataLength, &keyMapInfo); |
| 524 | if (MC_DRV_OK != mcRet) { |
| 525 | ret = TEE_ERR_MAP; |
| 526 | break; |
| 527 | } |
| 528 | |
| 529 | /* Update TCI buffer */ |
| 530 | pTci->command.header.commandId = CMD_ID_TEE_HMAC_GEN_KEY; |
| 531 | pTci->hmacgenkey.keydata = (uint32_t)keyMapInfo.sVirtualAddr; |
| 532 | pTci->hmacgenkey.keydatalen = keyDataLength; |
| 533 | |
| 534 | /* Notify the trustlet */ |
| 535 | mcRet = mcNotify(&sessionHandle); |
| 536 | if (MC_DRV_OK != mcRet) |
| 537 | { |
| 538 | ret = TEE_ERR_NOTIFICATION; |
| 539 | break; |
| 540 | } |
| 541 | |
| 542 | /* Wait for response from the trustlet */ |
| 543 | if (MC_DRV_OK != mcWaitNotification(&sessionHandle, MC_INFINITE_TIMEOUT)) |
| 544 | { |
| 545 | ret = TEE_ERR_NOTIFICATION; |
| 546 | break; |
| 547 | } |
| 548 | |
| 549 | /* Unmap memory */ |
| 550 | mcRet = mcUnmap(&sessionHandle, (void*)keyData, &keyMapInfo); |
| 551 | if (MC_DRV_OK != mcRet) |
| 552 | { |
| 553 | ret = TEE_ERR_MAP; |
| 554 | break; |
| 555 | } |
| 556 | |
| 557 | if (RET_OK != pTci->response.header.returnCode) |
| 558 | { |
| 559 | LOG_E("TEE_RSAVerify(): TEE Keymaster trustlet returned: 0x%.8x\n", |
| 560 | pTci->response.header.returnCode); |
| 561 | ret = TEE_ERR_FAIL; |
| 562 | } |
| 563 | |
| 564 | /* Update secure object length */ |
| 565 | *soLen = pTci->hmacgenkey.solen; |
| 566 | |
| 567 | }while (false); |
| 568 | |
| 569 | /* Close session to the trustlet */ |
| 570 | TEE_Close(sessionHandle); |
| 571 | |
| 572 | return ret; |
| 573 | } |
| 574 | |
| 575 | /** |
| 576 | * TEE_HMACSign |
| 577 | * |
| 578 | * Signs given plain data and returns HMAC signature data |
| 579 | * |
| 580 | * @param keyData [in] Pointer to key data buffer |
| 581 | * @param keyDataLength [in] Key data buffer length |
| 582 | * @param plainData [in] Pointer to plain data to be signed |
| 583 | * @param plainDataLength [in] Plain data length |
| 584 | * @param signatureData [out] Pointer to signature data |
| 585 | * @param signatureDataLength [out] Signature data length |
| 586 | * @param digest [in] Digest type |
| 587 | */ |
| 588 | teeResult_t TEE_HMACSign( |
| 589 | const uint8_t* keyData, |
| 590 | const uint32_t keyDataLength, |
| 591 | const uint8_t* plainData, |
| 592 | const uint32_t plainDataLength, |
| 593 | uint8_t* signatureData, |
| 594 | uint32_t* signatureDataLength, |
| 595 | teeDigest_t digest |
| 596 | ){ |
| 597 | teeResult_t ret = TEE_ERR_NONE; |
| 598 | tciMessage_ptr pTci = NULL; |
| 599 | mcSessionHandle_t sessionHandle; |
| 600 | mcBulkMap_t keyMapInfo; |
| 601 | mcBulkMap_t plainMapInfo; |
| 602 | mcBulkMap_t signatureMapInfo; |
| 603 | mcResult_t mcRet; |
| 604 | |
| 605 | do { |
| 606 | |
| 607 | /* Open session to the trustlet */ |
| 608 | pTci = TEE_Open(&sessionHandle); |
| 609 | if (!pTci) { |
| 610 | ret = TEE_ERR_MEMORY; |
| 611 | break; |
| 612 | } |
| 613 | |
| 614 | /* Map memory to the secure world */ |
| 615 | mcRet = mcMap(&sessionHandle, (void*)keyData, keyDataLength, &keyMapInfo); |
| 616 | if (MC_DRV_OK != mcRet) { |
| 617 | ret = TEE_ERR_MAP; |
| 618 | break; |
| 619 | } |
| 620 | |
| 621 | mcRet = mcMap(&sessionHandle, (void*)plainData, plainDataLength, &plainMapInfo); |
| 622 | if (MC_DRV_OK != mcRet) { |
| 623 | ret = TEE_ERR_MAP; |
| 624 | break; |
| 625 | } |
| 626 | |
| 627 | mcRet = mcMap(&sessionHandle, (void*)signatureData, *signatureDataLength, &signatureMapInfo); |
| 628 | if (MC_DRV_OK != mcRet) { |
| 629 | ret = TEE_ERR_MAP; |
| 630 | break; |
| 631 | } |
| 632 | |
| 633 | /* Update TCI buffer */ |
| 634 | pTci->command.header.commandId = CMD_ID_TEE_HMAC_SIGN; |
| 635 | pTci->hmacsign.keydata = (uint32_t)keyMapInfo.sVirtualAddr; |
| 636 | pTci->hmacsign.keydatalen = keyDataLength; |
| 637 | |
| 638 | pTci->hmacsign.plaindata = (uint32_t)plainMapInfo.sVirtualAddr; |
| 639 | pTci->hmacsign.plaindatalen = plainDataLength; |
| 640 | |
| 641 | pTci->hmacsign.signaturedata = (uint32_t)signatureMapInfo.sVirtualAddr; |
| 642 | pTci->hmacsign.signaturedatalen = *signatureDataLength; |
| 643 | |
| 644 | pTci->hmacsign.digest = digest; |
| 645 | |
| 646 | /* Notify the trustlet */ |
| 647 | mcRet = mcNotify(&sessionHandle); |
| 648 | if (MC_DRV_OK != mcRet) |
| 649 | { |
| 650 | ret = TEE_ERR_NOTIFICATION; |
| 651 | break; |
| 652 | } |
| 653 | |
| 654 | /* Wait for response from the trustlet */ |
| 655 | if (MC_DRV_OK != mcWaitNotification(&sessionHandle, MC_INFINITE_TIMEOUT)) |
| 656 | { |
| 657 | ret = TEE_ERR_NOTIFICATION; |
| 658 | break; |
| 659 | } |
| 660 | |
| 661 | /* Unmap memory */ |
| 662 | mcRet = mcUnmap(&sessionHandle, (void*)keyData, &keyMapInfo); |
| 663 | if (MC_DRV_OK != mcRet) |
| 664 | { |
| 665 | ret = TEE_ERR_MAP; |
| 666 | break; |
| 667 | } |
| 668 | |
| 669 | mcRet = mcUnmap(&sessionHandle, (void*)plainData, &plainMapInfo); |
| 670 | if (MC_DRV_OK != mcRet) |
| 671 | { |
| 672 | ret = TEE_ERR_MAP; |
| 673 | break; |
| 674 | } |
| 675 | |
| 676 | mcRet = mcUnmap(&sessionHandle, (void*)signatureData, &signatureMapInfo); |
| 677 | if (MC_DRV_OK != mcRet) |
| 678 | { |
| 679 | ret = TEE_ERR_MAP; |
| 680 | break; |
| 681 | } |
| 682 | |
| 683 | if (RET_OK != pTci->response.header.returnCode) |
| 684 | { |
| 685 | LOG_E("TEE_HMACSign(): TEE Keymaster trustlet returned: 0x%.8x\n", |
| 686 | pTci->response.header.returnCode); |
| 687 | ret = TEE_ERR_FAIL; |
| 688 | break; |
| 689 | } |
| 690 | |
| 691 | /* Retrieve signature data length */ |
| 692 | *signatureDataLength = pTci->hmacsign.signaturedatalen; |
| 693 | |
| 694 | } while (false); |
| 695 | |
| 696 | /* Close session to the trustlet */ |
| 697 | TEE_Close(sessionHandle); |
| 698 | |
| 699 | return ret; |
| 700 | } |
| 701 | |
| 702 | |
| 703 | /** |
| 704 | * TEE_HMACVerify |
| 705 | * |
| 706 | * Verifies given data HMAC key data and return status |
| 707 | * |
| 708 | * @param plainData [in] Pointer to plain data to be signed |
| 709 | * @param plainDataLength [in] Plain data length |
| 710 | * @param signatureData [in] Pointer to signed data |
| 711 | * @param signatureData [in] Plain data length |
| 712 | * @param digest [in] Digest type |
| 713 | * @param validity [out] Signature validity |
| 714 | */ |
| 715 | teeResult_t TEE_HMACVerify( |
| 716 | const uint8_t* keyData, |
| 717 | const uint32_t keyDataLength, |
| 718 | const uint8_t* plainData, |
| 719 | const uint32_t plainDataLength, |
| 720 | const uint8_t* signatureData, |
| 721 | const uint32_t signatureDataLength, |
| 722 | teeDigest_t digest, |
| 723 | bool *validity |
| 724 | ){ |
| 725 | teeResult_t ret = TEE_ERR_NONE; |
| 726 | tciMessage_ptr pTci = NULL; |
| 727 | mcSessionHandle_t sessionHandle; |
| 728 | mcBulkMap_t keyMapInfo; |
| 729 | mcBulkMap_t plainMapInfo; |
| 730 | mcBulkMap_t signatureMapInfo; |
| 731 | mcResult_t mcRet; |
| 732 | |
| 733 | do { |
| 734 | |
| 735 | /* Open session to the trustlet */ |
| 736 | pTci = TEE_Open(&sessionHandle); |
| 737 | if (!pTci) { |
| 738 | ret = TEE_ERR_MEMORY; |
| 739 | break; |
| 740 | } |
| 741 | |
| 742 | /* Map memory to the secure world */ |
| 743 | mcRet = mcMap(&sessionHandle, (void*)keyData, keyDataLength, &keyMapInfo); |
| 744 | if (MC_DRV_OK != mcRet) { |
| 745 | ret = TEE_ERR_MAP; |
| 746 | break; |
| 747 | } |
| 748 | |
| 749 | mcRet = mcMap(&sessionHandle, (void*)plainData, plainDataLength, &plainMapInfo); |
| 750 | if (MC_DRV_OK != mcRet) { |
| 751 | ret = TEE_ERR_MAP; |
| 752 | break; |
| 753 | } |
| 754 | |
| 755 | mcRet = mcMap(&sessionHandle, (void*)signatureData, signatureDataLength, &signatureMapInfo); |
| 756 | if (MC_DRV_OK != mcRet) { |
| 757 | ret = TEE_ERR_MAP; |
| 758 | break; |
| 759 | } |
| 760 | |
| 761 | /* Update TCI buffer */ |
| 762 | pTci->command.header.commandId = CMD_ID_TEE_HMAC_VERIFY; |
| 763 | pTci->hmacverify.keydata = (uint32_t)keyMapInfo.sVirtualAddr; |
| 764 | pTci->hmacverify.keydatalen = keyDataLength; |
| 765 | |
| 766 | pTci->hmacverify.plaindata = (uint32_t)plainMapInfo.sVirtualAddr; |
| 767 | pTci->hmacverify.plaindatalen = plainDataLength; |
| 768 | |
| 769 | pTci->hmacverify.signaturedata = (uint32_t)signatureMapInfo.sVirtualAddr; |
| 770 | pTci->hmacverify.signaturedatalen = signatureDataLength; |
| 771 | |
| 772 | pTci->hmacverify.digest = digest; |
| 773 | pTci->hmacverify.validity = false; |
| 774 | |
| 775 | /* Notify the trustlet */ |
| 776 | mcRet = mcNotify(&sessionHandle); |
| 777 | if (MC_DRV_OK != mcRet) |
| 778 | { |
| 779 | ret = TEE_ERR_NOTIFICATION; |
| 780 | break; |
| 781 | } |
| 782 | |
| 783 | /* Wait for response from the trustlet */ |
| 784 | if (MC_DRV_OK != mcWaitNotification(&sessionHandle, MC_INFINITE_TIMEOUT)) |
| 785 | { |
| 786 | ret = TEE_ERR_NOTIFICATION; |
| 787 | break; |
| 788 | } |
| 789 | |
| 790 | /* Unmap memory */ |
| 791 | mcRet = mcUnmap(&sessionHandle, (void*)keyData, &keyMapInfo); |
| 792 | if (MC_DRV_OK != mcRet) |
| 793 | { |
| 794 | ret = TEE_ERR_MAP; |
| 795 | break; |
| 796 | } |
| 797 | |
| 798 | mcRet = mcUnmap(&sessionHandle, (void*)plainData, &plainMapInfo); |
| 799 | if (MC_DRV_OK != mcRet) |
| 800 | { |
| 801 | ret = TEE_ERR_MAP; |
| 802 | break; |
| 803 | } |
| 804 | |
| 805 | mcRet = mcUnmap(&sessionHandle, (void*)signatureData, &signatureMapInfo); |
| 806 | if (MC_DRV_OK != mcRet) |
| 807 | { |
| 808 | ret = TEE_ERR_MAP; |
| 809 | break; |
| 810 | } |
| 811 | |
| 812 | if (RET_OK != pTci->response.header.returnCode) |
| 813 | { |
| 814 | LOG_E("TEE_HMACVerify(): TEE Keymaster trustlet returned: 0x%.8x\n", |
| 815 | pTci->response.header.returnCode); |
| 816 | ret = TEE_ERR_FAIL; |
| 817 | break; |
| 818 | } |
| 819 | |
| 820 | *validity = pTci->hmacverify.validity; |
| 821 | |
| 822 | } while (false); |
| 823 | |
| 824 | /* Close session to the trustlet */ |
| 825 | TEE_Close(sessionHandle); |
| 826 | |
| 827 | return ret; |
| 828 | } |
| 829 | |
| 830 | |
| 831 | /** |
| 832 | * TEE_KeyImport |
| 833 | * |
| 834 | * Imports key data and returns key data as secure object |
| 835 | * |
| 836 | * Key data needs to be in the following format |
| 837 | * |
| 838 | * RSA key data: |
| 839 | * |--key metadata--|--public modulus--|--public exponent--|--private exponent--| |
| 840 | * |
| 841 | * RSA CRT key data: |
| 842 | * |--key metadata--|--public modulus--|--public exponent--|--P--|--Q--|--DP--|--DQ--|--Qinv--| |
| 843 | * |
| 844 | * Where: |
| 845 | * P: secret prime factor |
| 846 | * Q: secret prime factor |
| 847 | * DP: d mod (p-1) |
| 848 | * DQ: d mod (q-1) |
| 849 | * Qinv: q^-1 mod p |
| 850 | * |
| 851 | * @param keyData [in] Pointer to key data |
| 852 | * @param keyDataLength [in] Key data length |
| 853 | * @param soData [out] Pointer to wrapped key data |
| 854 | * @param soDataLength [out] Wrapped key data length |
| 855 | */ |
| 856 | teeResult_t TEE_KeyImport( |
| 857 | const uint8_t* keyData, |
| 858 | const uint32_t keyDataLength, |
| 859 | uint8_t* soData, |
| 860 | uint32_t* soDataLength |
| 861 | ){ |
| 862 | teeResult_t ret = TEE_ERR_NONE; |
| 863 | tciMessage_ptr pTci = NULL; |
| 864 | mcSessionHandle_t sessionHandle; |
| 865 | mcBulkMap_t keyMapInfo; |
| 866 | mcBulkMap_t soMapInfo; |
| 867 | mcResult_t mcRet; |
| 868 | |
| 869 | do { |
| 870 | |
| 871 | /* Open session to the trustlet */ |
| 872 | pTci = TEE_Open(&sessionHandle); |
| 873 | if (!pTci) { |
| 874 | ret = TEE_ERR_MEMORY; |
| 875 | break; |
| 876 | } |
| 877 | |
| 878 | /* Map memory to the secure world */ |
| 879 | mcRet = mcMap(&sessionHandle, (void*)keyData, keyDataLength, &keyMapInfo); |
| 880 | if (MC_DRV_OK != mcRet) { |
| 881 | ret = TEE_ERR_MAP; |
| 882 | break; |
| 883 | } |
| 884 | |
| 885 | mcRet = mcMap(&sessionHandle, (void*)soData, *soDataLength, &soMapInfo); |
| 886 | if (MC_DRV_OK != mcRet) { |
| 887 | ret = TEE_ERR_MAP; |
| 888 | break; |
| 889 | } |
| 890 | |
| 891 | /* Update TCI buffer */ |
| 892 | pTci->command.header.commandId = CMD_ID_TEE_KEY_IMPORT; |
| 893 | pTci->keyimport.keydata = (uint32_t)keyMapInfo.sVirtualAddr; |
| 894 | pTci->keyimport.keydatalen = keyDataLength; |
| 895 | pTci->keyimport.sodata = (uint32_t)soMapInfo.sVirtualAddr; |
| 896 | pTci->keyimport.sodatalen = *soDataLength; |
| 897 | |
| 898 | /* Notify the trustlet */ |
| 899 | mcRet = mcNotify(&sessionHandle); |
| 900 | if (MC_DRV_OK != mcRet) |
| 901 | { |
| 902 | ret = TEE_ERR_NOTIFICATION; |
| 903 | break; |
| 904 | } |
| 905 | |
| 906 | /* Wait for response from the trustlet */ |
| 907 | if (MC_DRV_OK != mcWaitNotification(&sessionHandle, MC_INFINITE_TIMEOUT)) |
| 908 | { |
| 909 | ret = TEE_ERR_NOTIFICATION; |
| 910 | break; |
| 911 | } |
| 912 | |
| 913 | /* Unmap memory */ |
| 914 | mcRet = mcUnmap(&sessionHandle, (void*)keyData, &keyMapInfo); |
| 915 | if (MC_DRV_OK != mcRet) |
| 916 | { |
| 917 | ret = TEE_ERR_MAP; |
| 918 | break; |
| 919 | } |
| 920 | |
| 921 | mcRet = mcUnmap(&sessionHandle, (void*)soData, &soMapInfo); |
| 922 | if (MC_DRV_OK != mcRet) |
| 923 | { |
| 924 | ret = TEE_ERR_MAP; |
| 925 | break; |
| 926 | } |
| 927 | |
| 928 | if (RET_OK != pTci->response.header.returnCode) |
| 929 | { |
| 930 | LOG_E("TEE_KeyWrap(): TEE Keymaster trustlet returned: 0x%.8x\n", |
| 931 | pTci->response.header.returnCode); |
| 932 | ret = TEE_ERR_FAIL; |
| 933 | break; |
| 934 | } |
| 935 | |
| 936 | /* Update secure object length */ |
| 937 | *soDataLength = pTci->keyimport.sodatalen; |
| 938 | |
| 939 | } while (false); |
| 940 | |
| 941 | /* Close session to the trustlet */ |
| 942 | TEE_Close(sessionHandle); |
| 943 | |
| 944 | return ret; |
| 945 | } |
| 946 | |
| 947 | |
| 948 | /** * TEE_GetPubKey |
| 949 | * |
| 950 | * Retrieves public key daya (modulus and exponent) from wrapped key data |
| 951 | * |
| 952 | * @param keyData [in] Pointer to key data |
| 953 | * @param keyDataLength [in] Key data length |
| 954 | * @param modulus [out] Pointer to public key modulus data |
| 955 | * @param modulusLength [out] Modulus data length |
| 956 | * @param exponent [out] Pointer to public key exponent data |
| 957 | * @param exponentLength [out] Exponent data length |
| 958 | */ |
| 959 | teeResult_t TEE_GetPubKey( |
| 960 | const uint8_t* keyData, |
| 961 | const uint32_t keyDataLength, |
| 962 | uint8_t* modulus, |
| 963 | uint32_t* modulusLength, |
| 964 | uint8_t* exponent, |
| 965 | uint32_t* exponentLength |
| 966 | ){ |
| 967 | teeResult_t ret = TEE_ERR_NONE; |
| 968 | tciMessage_ptr pTci = NULL; |
| 969 | mcSessionHandle_t sessionHandle; |
| 970 | mcBulkMap_t keyMapInfo; |
| 971 | mcBulkMap_t modMapInfo; |
| 972 | mcBulkMap_t expMapInfo; |
| 973 | mcResult_t mcRet; |
| 974 | |
| 975 | do { |
| 976 | |
| 977 | /* Open session to the trustlet */ |
| 978 | pTci = TEE_Open(&sessionHandle); |
| 979 | if (!pTci) { |
| 980 | ret = TEE_ERR_MEMORY; |
| 981 | break; |
| 982 | } |
| 983 | |
| 984 | /* Map memory to the secure world */ |
| 985 | mcRet = mcMap(&sessionHandle, (void*)keyData, keyDataLength, &keyMapInfo); |
| 986 | if (MC_DRV_OK != mcRet) { |
| 987 | ret = TEE_ERR_MAP; |
| 988 | break; |
| 989 | } |
| 990 | |
| 991 | mcRet = mcMap(&sessionHandle, (void*)modulus, *modulusLength, &modMapInfo); |
| 992 | if (MC_DRV_OK != mcRet) { |
| 993 | ret = TEE_ERR_MAP; |
| 994 | break; |
| 995 | } |
| 996 | |
| 997 | mcRet = mcMap(&sessionHandle, (void*)exponent, *exponentLength, &expMapInfo); |
| 998 | if (MC_DRV_OK != mcRet) { |
| 999 | ret = TEE_ERR_MAP; |
| 1000 | break; |
| 1001 | } |
| 1002 | |
| 1003 | /* Update TCI buffer */ |
| 1004 | pTci->command.header.commandId = CMD_ID_TEE_GET_PUB_KEY; |
| 1005 | pTci->getpubkey.keydata = (uint32_t)keyMapInfo.sVirtualAddr; |
| 1006 | pTci->getpubkey.keydatalen = keyDataLength; |
| 1007 | pTci->getpubkey.modulus = (uint32_t)modMapInfo.sVirtualAddr; |
| 1008 | pTci->getpubkey.moduluslen = *modulusLength; |
| 1009 | pTci->getpubkey.exponent = (uint32_t)expMapInfo.sVirtualAddr; |
| 1010 | pTci->getpubkey.exponentlen = *exponentLength; |
| 1011 | |
| 1012 | /* Notify the trustlet */ |
| 1013 | mcRet = mcNotify(&sessionHandle); |
| 1014 | if (MC_DRV_OK != mcRet) |
| 1015 | { |
| 1016 | ret = TEE_ERR_NOTIFICATION; |
| 1017 | break; |
| 1018 | } |
| 1019 | |
| 1020 | /* Wait for response from the trustlet */ |
| 1021 | if (MC_DRV_OK != mcWaitNotification(&sessionHandle, MC_INFINITE_TIMEOUT)) |
| 1022 | { |
| 1023 | ret = TEE_ERR_NOTIFICATION; |
| 1024 | break; |
| 1025 | } |
| 1026 | |
| 1027 | /* Unmap memory */ |
| 1028 | mcRet = mcUnmap(&sessionHandle, (void*)keyData, &keyMapInfo); |
| 1029 | if (MC_DRV_OK != mcRet) |
| 1030 | { |
| 1031 | ret = TEE_ERR_MAP; |
| 1032 | break; |
| 1033 | } |
| 1034 | |
| 1035 | mcRet = mcUnmap(&sessionHandle, (void*)modulus, &modMapInfo); |
| 1036 | if (MC_DRV_OK != mcRet) |
| 1037 | { |
| 1038 | ret = TEE_ERR_MAP; |
| 1039 | break; |
| 1040 | } |
| 1041 | |
| 1042 | mcRet = mcUnmap(&sessionHandle, (void*)exponent, &expMapInfo); |
| 1043 | if (MC_DRV_OK != mcRet) |
| 1044 | { |
| 1045 | ret = TEE_ERR_MAP; |
| 1046 | break; |
| 1047 | } |
| 1048 | |
| 1049 | if (RET_OK != pTci->response.header.returnCode) |
| 1050 | { |
| 1051 | LOG_E("TEE_GetPubKey(): TEE Keymaster trustlet returned: 0x%.8x\n", |
| 1052 | pTci->response.header.returnCode); |
| 1053 | ret = TEE_ERR_FAIL; |
| 1054 | break; |
| 1055 | } |
| 1056 | |
| 1057 | /* Update modulus and exponent lengths */ |
| 1058 | *modulusLength = pTci->getpubkey.moduluslen; |
| 1059 | *exponentLength = pTci->getpubkey.exponentlen; |
| 1060 | |
| 1061 | } while (false); |
| 1062 | |
| 1063 | /* Close session to the trustlet */ |
| 1064 | TEE_Close(sessionHandle); |
| 1065 | |
| 1066 | return ret; |
| 1067 | } |