188     DigestAlgorithm::DigestAlgorithmPtr algorithm = nullptr;  in LoadPackage()  local
192     int32_t ret = ReadUpgradePkgHeader(buffer, parsedLen, algorithm);  in LoadPackage()
195     ret = ReadComponents(buffer, parsedLen, algorithm, fileNames);  in LoadPackage()
217     algorithm->Update(buffer, UPGRADE_RESERVE_LEN + GetUpgradeSignatureLen());  in LoadPackage()
221     return Verify(parsedLen, algorithm, verifier, signData);  in LoadPackage()
224 int32_t UpgradePkgFile::Verify(size_t start, DigestAlgorithm::DigestAlgorithmPtr algorithm,  in Verify()  argument
243         algorithm->Update(buffer, readBytes);  in Verify()
248     algorithm->Final(digest);  in Verify()
258     DigestAlgorithm::DigestAlgorithmPtr algorithm, std::vector<std::string> &fileNames)  in ReadComponents()  argument
268     algorithm->Update(buffer, sizeof(PkgTlv)); // tlv generate digest  in ReadComponents()
298         algorithm->Update(signBuffer, decodeLen); // Generate digest for components  in ReadComponents()
313     DigestAlgorithm::DigestAlgorithmPtr &algorithm)  in ReadUpgradePkgHeader()  argument
340     algorithm = PkgAlgorithmFactory::GetDigestAlgorithm(pkgInfo_.pkgInfo.digestMethod);  in ReadUpgradePkgHeader()
341     PKG_CHECK(algorithm != nullptr, return PKG_NOT_EXIST_ALGORITHM,  in ReadUpgradePkgHeader()
343     algorithm->Init();  in ReadUpgradePkgHeader()
347         algorithm->Update(buffer, realLen);  in ReadUpgradePkgHeader()
367     algorithm->Update(buffer, currLen); // Generate digest  in ReadUpgradePkgHeader()
410 …  PkgAlgorithm::PkgAlgorithmPtr algorithm = PkgAlgorithmFactory::GetAlgorithm(&fileInfo_.fileInfo);  in Pack()  local
412     if (algorithm == nullptr || outStream == nullptr || inStream == nullptr) {  in Pack()
426     int32_t ret = algorithm->Pack(inStream, outStream, context);  in Pack()
488 …  PkgAlgorithm::PkgAlgorithmPtr algorithm = PkgAlgorithmFactory::GetAlgorithm(&fileInfo_.fileInfo);  in Unpack()  local
489     if (algorithm == nullptr) {  in Unpack()
509     ret = algorithm->Unpack(inStream, outStream, context);  in Unpack()