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Add OMEMO fingerprint command

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This commit is contained in:
Paul Fariello
2019-03-07 19:04:33 +01:40
parent 55407ee15f
commit b3be504e84
6 changed files with 90 additions and 3 deletions
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51
src/omemo/omemo.c
View File

@@ -679,6 +679,57 @@ omemo_on_message_recv(const char *const from, uint32_t sid,
}
char *
omemo_format_fingerprint(const char *const fingerprint)
{
char *output = malloc(strlen(fingerprint) + strlen(fingerprint) / 8 + 1);
int i, j;
for (i = 0, j = 0; i < strlen(fingerprint); i++) {
if (i > 0 && i % 8 == 0) {
output[j++] = '-';
}
output[j++] = fingerprint[i];
}
output[strlen(fingerprint) + strlen(fingerprint) / 8] = '\0';
return output;
}
char *
omemo_own_fingerprint()
{
signal_buffer *public = omemo_ctx.identity_key_store.public;
/* Skip first byte corresponding to signal base type */
return omemo_fingerprint(signal_buffer_data(public) + 1, signal_buffer_len(public) - 1);
}
char *
omemo_fingerprint(const unsigned char *const identity_key_public, size_t len)
{
int i;
char *fingerprint = malloc(len * 2 + 1);
for (i = 0; i < len; i++) {
fingerprint[i * 2] = (identity_key_public[i] & 0xf0) >> 4;
fingerprint[i * 2] += 0x30;
if (fingerprint[i * 2] > 0x39) {
fingerprint[i * 2] += 0x27;
}
fingerprint[(i * 2) + 1] = identity_key_public[i] & 0x0f;
fingerprint[(i * 2) + 1] += 0x30;
if (fingerprint[(i * 2) + 1] > 0x39) {
fingerprint[(i * 2) + 1] += 0x27;
}
}
fingerprint[len * 2] = '\0';
return fingerprint;
}
static void
lock(void *user_data)
{

3
src/omemo/omemo.h
View File

@@ -28,6 +28,9 @@ void omemo_prekeys(GList **prekeys, GList **ids, GList **lengths);
void omemo_set_device_list(const char *const jid, GList * device_list);
GKeyFile *omemo_sessions_keyfile(void);
void omemo_sessions_keyfile_save(void);
char *omemo_fingerprint(const unsigned char *const identity_key_public, size_t len);
char *omemo_format_fingerprint(const char *const fingerprint);
char *omemo_own_fingerprint();
void omemo_start_session(const char *const barejid);
void omemo_start_device_session(const char *const jid, uint32_t device_id, GList *prekeys, uint32_t signed_prekey_id, const unsigned char *const signed_prekey, size_t signed_prekey_len, const unsigned char *const signature, size_t signature_len, const unsigned char *const identity_key, size_t identity_key_len);