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-rw-r--r--src/sas.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/src/sas.c b/src/sas.c
index 75e7724..7117fed 100644
--- a/src/sas.c
+++ b/src/sas.c
@@ -141,6 +141,10 @@ size_t olm_sas_calculate_mac(
sas->last_error = OLM_OUTPUT_BUFFER_TOO_SMALL;
return (size_t)-1;
}
+ if (!sas->their_key_set) {
+ sas->last_error = OLM_SAS_THEIR_KEY_NOT_SET;
+ return (size_t)-1;
+ }
uint8_t key[32];
_olm_crypto_hkdf_sha256(
sas->secret, sizeof(sas->secret),
@@ -164,6 +168,10 @@ size_t olm_sas_calculate_mac_long_kdf(
sas->last_error = OLM_OUTPUT_BUFFER_TOO_SMALL;
return (size_t)-1;
}
+ if (!sas->their_key_set) {
+ sas->last_error = OLM_SAS_THEIR_KEY_NOT_SET;
+ return (size_t)-1;
+ }
uint8_t key[256];
_olm_crypto_hkdf_sha256(
sas->secret, sizeof(sas->secret),