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- #include "optiga/common/Util.h"
- #include "optiga/dtls/HardwareCrypto.h"
- #include "optiga/dtls/OcpCommon.h"
- #include "optiga/cmd/CommandLib.h"
- #ifdef MODULE_ENABLE_DTLS_MUTUAL_AUTH
- int32_t HWCL_Init(sCL_d* PpsCL, const void* PpParam)
- {
- int32_t i4Status = (int32_t)OCP_CL_ERROR;
- do
- {
- PpsCL->phCryptoHdl = (sHardwareCrypto_d*)OCP_MALLOC(sizeof(sHardwareCrypto_d));
- if(NULL == PpsCL->phCryptoHdl)
- {
- i4Status = (int32_t)OCP_CL_MALLOC_FAILURE;
- break;
- }
- memset(PpsCL->phCryptoHdl, 0x00, sizeof(sHardwareCrypto_d));
- ((sHardwareCrypto_d*)PpsCL->phCryptoHdl)->wSessionKeyOID = *((uint16_t*)PpParam);
- i4Status = OCP_CL_OK;
- }while(FALSE);
- return i4Status;
- }
- int32_t HWCL_Encrypt(const sCL_d* PpsCL, const sbBlob_d* PpsBlobPlainText,sbBlob_d* PpsBlobCipherText,uint16_t PwLen)
- {
- int32_t i4Status = (int32_t)OCP_CL_ERROR;
- sProcCryptoData_d sProcCryptoData;
- do
- {
-
- if((NULL == PpsBlobPlainText)||(NULL == PpsBlobPlainText->prgbStream) ||
- (NULL == PpsBlobCipherText)|| (NULL == PpsBlobCipherText->prgbStream) || (NULL == PpsCL))
- {
- i4Status = (int32_t)OCP_CL_NULL_PARAM;
- break;
- }
-
- if(0 == PwLen)
- {
- i4Status = (int32_t)OCP_CL_ZERO_LEN;
- break;
- }
-
- if(PpsBlobPlainText->wLen < (PwLen + OVERHEAD_UPDOWNLINK) ||
- (PpsBlobCipherText->wLen < (PwLen + OVERHEAD_ENCDEC_RESPONSE + MAC_LENGTH + EXPLICIT_NOUNCE_LENGTH)))
- {
- i4Status = (int32_t)OCP_CL_INSUFFICIENT_MEMORY;
- break;
- }
-
- sProcCryptoData.sInData.prgbStream = PpsBlobPlainText->prgbStream;
- sProcCryptoData.sInData.wLen = PpsBlobPlainText->wLen;
- sProcCryptoData.wInDataLength = PwLen;
- sProcCryptoData.wSessionKeyOID = ((sHardwareCrypto_d*)PpsCL->phCryptoHdl)->wSessionKeyOID;
- sProcCryptoData.sOutData.prgbBuffer = PpsBlobCipherText->prgbStream;
- sProcCryptoData.sOutData.wBufferLength = PpsBlobCipherText->wLen;
-
- i4Status = CmdLib_Encrypt(&sProcCryptoData);
- if(CMD_LIB_OK != i4Status)
- {
- break;
- }
- PpsBlobCipherText->wLen = sProcCryptoData.sOutData.wRespLength;
- i4Status = (int32_t)OCP_CL_OK;
- }while(FALSE);
- return i4Status;
- }
- int32_t HWCL_Decrypt(const sCL_d* PpsCL,const sbBlob_d* PpsBlobCipherText,sbBlob_d* PpsBlobPlainText,uint16_t PwLen)
- {
- int32_t i4Status = (int32_t)OCP_CL_ERROR;
- sProcCryptoData_d sProcCryptoData;
- do
- {
-
- if((NULL == PpsBlobPlainText)||(NULL == PpsBlobPlainText->prgbStream) ||
- (NULL == PpsBlobCipherText)|| (NULL == PpsBlobCipherText->prgbStream) || (NULL == PpsCL))
- {
- i4Status = (int32_t)OCP_CL_NULL_PARAM;
- break;
- }
-
- if(0 == PwLen)
- {
- i4Status = (int32_t)OCP_CL_ZERO_LEN;
- break;
- }
-
- if((PpsBlobPlainText->wLen < (PwLen + OVERHEAD_ENCDEC_RESPONSE - (MAC_LENGTH + EXPLICIT_NOUNCE_LENGTH))) ||
- (PpsBlobCipherText->wLen < (PwLen + OVERHEAD_UPDOWNLINK)))
- {
- i4Status = (int32_t)OCP_CL_INSUFFICIENT_MEMORY;
- break;
- }
-
- sProcCryptoData.sInData.prgbStream = PpsBlobCipherText->prgbStream;
- sProcCryptoData.sInData.wLen = PpsBlobCipherText->wLen;
- sProcCryptoData.wInDataLength = PwLen;
- sProcCryptoData.wSessionKeyOID = ((sHardwareCrypto_d*)PpsCL->phCryptoHdl)->wSessionKeyOID;
- sProcCryptoData.sOutData.prgbBuffer = PpsBlobPlainText->prgbStream;
- sProcCryptoData.sOutData.wBufferLength = PpsBlobPlainText->wLen;
- LOG_TRANSPORTMSG("Encrypted Data sent to OPTIGA",eInfo);
-
- i4Status = CmdLib_Decrypt(&sProcCryptoData);
- if(CMD_LIB_OK != i4Status)
- {
- LOG_TRANSPORTDBVAL(i4Status,eInfo);
- break;
- }
- PpsBlobPlainText->wLen = sProcCryptoData.sOutData.wRespLength;
-
- LOG_TRANSPORTDBARY("Decrypted Data", sProcCryptoData.sOutData.prgbBuffer, PpsBlobPlainText->wLen, eInfo);
- i4Status = (int32_t) OCP_CL_OK;
- }while(FALSE);
- return i4Status;
- }
- void HWCL_Close(sCL_d* PpsCL)
- {
- if((NULL != PpsCL) && (NULL != PpsCL->phCryptoHdl))
- {
- OCP_FREE(PpsCL->phCryptoHdl);
- PpsCL->phCryptoHdl = NULL;
- }
- }
- #endif
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