generate shorter UUID strings for interaction with users (#7089)

1 files changed, 25 insertions, 0 deletions

diff --git a/src/util/anastasis_crypto.c b/src/util/anastasis_crypto.c
index f5e6c77..8f218f7 100644
--- a/src/util/anastasis_crypto.c
+++ b/src/util/anastasis_crypto.c
@@ -579,4 +579,29 @@ ANASTASIS_CRYPTO_destroy_encrypted_core_secret (
 }
 
 
+/**
+ * Convert a @a uuid to a shortened, human-readable string
+ * useful to show to users to identify the truth.
+ * Note that the return value is in a global variable and
+ * only valid until the next invocation of this function.
+ *
+ * @param uuid UUID to convert
+ * @return string representation
+ */
+const char *
+ANASTASIS_CRYPTO_uuid2s (const struct ANASTASIS_CRYPTO_TruthUUIDP *uuid)
+{
+  static char uuids[7];
+  char *tpk;
+
+  tpk = GNUNET_STRINGS_data_to_string_alloc (uuid,
+                                             sizeof (*uuid));
+  memcpy (uuids,
+          tpk,
+          sizeof (uuids) - 1);
+  GNUNET_free (tpk);
+  return uuids;
+}
+
+
 /* end of anastasis_crypto.c */