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-rw-r--r--src/session.cpp22
1 files changed, 15 insertions, 7 deletions
diff --git a/src/session.cpp b/src/session.cpp
index c0b6cf4..0d9b58a 100644
--- a/src/session.cpp
+++ b/src/session.cpp
@@ -13,7 +13,7 @@
* limitations under the License.
*/
#include "olm/session.hh"
-#include "olm/cipher.hh"
+#include "olm/cipher.h"
#include "olm/crypto.hh"
#include "olm/account.hh"
#include "olm/memory.hh"
@@ -30,19 +30,27 @@ static const std::uint8_t ROOT_KDF_INFO[] = "OLM_ROOT";
static const std::uint8_t RATCHET_KDF_INFO[] = "OLM_RATCHET";
static const std::uint8_t CIPHER_KDF_INFO[] = "OLM_KEYS";
-static const olm::CipherAesSha256 OLM_CIPHER(
- CIPHER_KDF_INFO, sizeof(CIPHER_KDF_INFO) -1
-);
-
static const olm::KdfInfo OLM_KDF_INFO = {
ROOT_KDF_INFO, sizeof(ROOT_KDF_INFO) - 1,
RATCHET_KDF_INFO, sizeof(RATCHET_KDF_INFO) - 1
};
+const olm_cipher *get_cipher() {
+ static olm_cipher *cipher;
+ static olm_cipher_aes_sha_256 OLM_CIPHER;
+ if (!cipher) {
+ cipher = olm_cipher_aes_sha_256_init(
+ &OLM_CIPHER,
+ CIPHER_KDF_INFO, sizeof(CIPHER_KDF_INFO) - 1
+ );
+ }
+ return cipher;
+}
+
} // namespace
olm::Session::Session(
-) : ratchet(OLM_KDF_INFO, OLM_CIPHER),
+) : ratchet(OLM_KDF_INFO, get_cipher()),
last_error(OlmErrorCode::OLM_SUCCESS),
received_message(false) {
@@ -149,7 +157,7 @@ std::size_t olm::Session::new_inbound_session(
olm::MessageReader message_reader;
decode_message(
message_reader, reader.message, reader.message_length,
- ratchet.ratchet_cipher.mac_length()
+ ratchet.ratchet_cipher->ops->mac_length(ratchet.ratchet_cipher)
);
if (!message_reader.ratchet_key