initial implementation of short authentication string generation

1 files changed, 82 insertions, 0 deletions

diff --git a/include/olm/sas.h b/include/olm/sas.h
new file mode 100644
index 0000000..688b587
--- /dev/null
+++ b/include/olm/sas.h
@@ -0,0 +1,82 @@
+/* Copyright 2018 New Vector Ltd
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+
+#ifndef OLM_SAS_H_
+#define OLM_SAS_H_
+
+#include <stddef.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef struct OlmSAS OlmSAS;
+
+const char * olm_sas_last_error(
+    OlmSAS * sas
+);
+
+size_t olm_sas_size(void);
+
+OlmSAS * olm_sas(
+    void * memory
+);
+
+size_t olm_clear_sas(
+    OlmSAS * sas
+);
+
+size_t olm_create_sas_random_length(
+    OlmSAS * sas
+);
+
+size_t olm_create_sas(
+    OlmSAS * sas,
+    void * random, size_t random_length
+);
+
+size_t olm_sas_pubkey_length(OlmSAS * sas);
+
+size_t olm_sas_get_pubkey(
+    OlmSAS * sas,
+    void * pubkey, size_t pubkey_length
+);
+
+size_t olm_sas_set_their_key(
+    OlmSAS *sas,
+    void * their_key, size_t their_key_length
+);
+
+size_t olm_sas_generate_bytes(
+    OlmSAS * sas,
+    void * output, size_t output_length
+);
+
+size_t olm_sas_mac_length(
+    OlmSAS *sas
+);
+
+size_t olm_sas_calculate_mac(
+    OlmSAS * sas,
+    void * input, size_t input_length,
+    void * mac, size_t mac_length
+);
+
+#ifdef __cplusplus
+} // extern "C"
+#endif
+
+#endif /* OLM_SAS_H_ */