more management

include/dune

@@ -9,6 +9,11 @@
  (modules gen_taler_signatures)
  (libraries fmt angstrom))
 
+(executable
+ (name gen_eddsa_key)
+ (modules gen_eddsa_key)
+ (libraries fmt mirage-crypto-rng.unix mirage-crypto-ec b32))
+
 (executable
  (name parse_config)
  (modules parse_config)

include/gen_eddsa_key.ml

@@ -0,0 +1,16 @@
+let () =
+  Mirage_crypto_rng_unix.use_default ();
+  let open Mirage_crypto_ec.Ed25519 in
+  let _priv, pub = generate () in
+  let octets = pub_to_octets pub in
+  let pub_b32 = B32.encode octets in
+  let octets' = B32.decode pub_b32 |> Result.get_ok in
+  assert (octets = octets');
+  (*
+  Fmt.pr "public key    :@.%S@." octets;
+  Fmt.pr "len: %d@." (String.length octets);
+  Fmt.pr "len: %d@." (String.length pub_b32);
+  *)
+  Fmt.pr "%s@." pub_b32;
+
+  ()