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diff --git a/native/cpp/CommonCpp/CryptoTools/CryptoModule.h b/native/cpp/CommonCpp/CryptoTools/CryptoModule.h
--- a/native/cpp/CommonCpp/CryptoTools/CryptoModule.h
+++ b/native/cpp/CommonCpp/CryptoTools/CryptoModule.h
@@ -77,9 +77,6 @@
encrypt(const std::string &targetDeviceId, const std::string &content);
std::string
decrypt(const std::string &targetDeviceId, EncryptedData &encryptedData);
- std::string decryptSequential(
- const std::string &targetDeviceId,
- EncryptedData &encryptedData);
std::string signMessage(const std::string &message);
static void verifySignature(
diff --git a/native/cpp/CommonCpp/CryptoTools/CryptoModule.cpp b/native/cpp/CommonCpp/CryptoTools/CryptoModule.cpp
--- a/native/cpp/CommonCpp/CryptoTools/CryptoModule.cpp
+++ b/native/cpp/CommonCpp/CryptoTools/CryptoModule.cpp
@@ -414,16 +414,6 @@
return this->sessions.at(targetDeviceId)->decrypt(encryptedData);
}
-std::string CryptoModule::decryptSequential(
- const std::string &targetDeviceId,
- EncryptedData &encryptedData) {
- if (!this->hasSessionFor(targetDeviceId)) {
- throw std::runtime_error{
- "error decrypt sequential => uninitialized session"};
- }
- return this->sessions.at(targetDeviceId)->decryptSequential(encryptedData);
-}
-
std::string CryptoModule::signMessage(const std::string &message) {
OlmBuffer signature;
signature.resize(::olm_account_signature_length(this->getOlmAccount()));
diff --git a/native/cpp/CommonCpp/CryptoTools/Session.h b/native/cpp/CommonCpp/CryptoTools/Session.h
--- a/native/cpp/CommonCpp/CryptoTools/Session.h
+++ b/native/cpp/CommonCpp/CryptoTools/Session.h
@@ -33,7 +33,6 @@
restoreFromB64(const std::string &secretKey, OlmBuffer &b64);
OlmSession *getOlmSession();
std::string decrypt(EncryptedData &encryptedData);
- std::string decryptSequential(EncryptedData &encryptedData);
int getVersion();
void setVersion(int newVersion);
};
diff --git a/native/cpp/CommonCpp/CryptoTools/Session.cpp b/native/cpp/CommonCpp/CryptoTools/Session.cpp
--- a/native/cpp/CommonCpp/CryptoTools/Session.cpp
+++ b/native/cpp/CommonCpp/CryptoTools/Session.cpp
@@ -179,51 +179,6 @@
return std::string{(char *)decryptedMessage.data(), decryptedSize};
}
-std::string Session::decryptSequential(EncryptedData &encryptedData) {
- OlmSession *session = this->getOlmSession();
-
- OlmBuffer utilityBuffer(::olm_utility_size());
- OlmUtility *olmUtility = ::olm_utility(utilityBuffer.data());
-
- OlmBuffer messageHashBuffer(::olm_sha256_length(olmUtility));
- ::olm_sha256(
- olmUtility,
- encryptedData.message.data(),
- encryptedData.message.size(),
- messageHashBuffer.data(),
- messageHashBuffer.size());
-
- OlmBuffer tmpEncryptedMessage(encryptedData.message);
- size_t maxSize = ::olm_decrypt_max_plaintext_length(
- session,
- encryptedData.messageType,
- tmpEncryptedMessage.data(),
- tmpEncryptedMessage.size());
-
- if (maxSize == -1) {
- throw std::runtime_error{
- "error decrypt_max_plaintext_length => " +
- std::string{::olm_session_last_error(session)} + ". Hash: " +
- std::string{messageHashBuffer.begin(), messageHashBuffer.end()}};
- }
-
- OlmBuffer decryptedMessage(maxSize);
- size_t decryptedSize = ::olm_decrypt_sequential(
- session,
- encryptedData.messageType,
- encryptedData.message.data(),
- encryptedData.message.size(),
- decryptedMessage.data(),
- decryptedMessage.size());
- if (decryptedSize == -1) {
- throw std::runtime_error{
- "error decrypt_sequential => " +
- std::string{::olm_session_last_error(session)} + ". Hash: " +
- std::string{messageHashBuffer.begin(), messageHashBuffer.end()}};
- }
- return std::string{(char *)decryptedMessage.data(), decryptedSize};
-}
-
int Session::getVersion() {
return this->version;
}

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