+/* --- Ed448 --- */
+
+typedef struct ed448_signctx {
+ octet k[ED448_KEYSZ];
+ octet K[ED448_PUBSZ];
+ octet m[64];
+} ed448_signctx;
+
+typedef struct ed448_vrfctx {
+ octet K[ED448_PUBSZ];
+ octet m[64];
+ octet sig[ED448_SIGSZ];
+} ed448_vrfctx;
+
+static void *ed448_signinit(opts *o)
+{
+ ed448_signctx *c = CREATE(ed448_signctx);
+
+ rand_get(RAND_GLOBAL, c->k, sizeof(c->k));
+ rand_get(RAND_GLOBAL, c->m, sizeof(c->m));
+ ed448_pubkey(c->K, c->k, sizeof(c->k));
+ return (c);
+}
+
+static void ed448_signrun(void *cc)
+{
+ ed448_signctx *c = cc;
+ octet sig[ED448_SIGSZ];
+
+ ed448_sign(sig, c->k, sizeof(c->k), c->K, 0, 0, 0, c->m, sizeof(c->m));
+}
+
+static void *ed448_vrfinit(opts *o)
+{
+ octet k[ED448_KEYSZ];
+ ed448_vrfctx *c = CREATE(ed448_vrfctx);
+
+ rand_get(RAND_GLOBAL, k, sizeof(k));
+ rand_get(RAND_GLOBAL, c->m, sizeof(c->m));
+ ed448_pubkey(c->K, k, sizeof(k));
+ ed448_sign(c->sig, k, sizeof(k), c->K, 0, 0, 0, c->m, sizeof(c->m));
+ return (c);
+}
+
+static void ed448_vrfrun(void *cc)
+{
+ ed448_vrfctx *c = cc;
+ ed448_verify(c->K, 0, 0, 0, c->m, sizeof(c->m), c->sig);
+}
+