diff --git a/gen164/5/ed_puck.c b/gen164/5/ed_puck.c
index e20d7f2a3d..76e6ff448f 100644
--- a/gen164/5/ed_puck.c
+++ b/gen164/5/ed_puck.c
@@ -16,13 +16,16 @@
     c3_y pub_y[32];
     c3_y sec_y[64];
     c3_y sed_y[32];
+    c3_y mes_y;
     u2_noun a = u2_frag(u2_cv_sam, cor);
 
     if ( (u2_none == a) || (u2_no == u2_stud(a)) ) {
       return u2_bl_bail(wir_r, c3__exit);
     }
 
-    u2_cr_bytes(0, 32, sed_y, a);
+    mes_y = u2_met(3, a);
+    memset(sed_y, 0, 32);
+    u2_cr_bytes(0, mes_y, sed_y, a);
     ed25519_create_keypair(pub_y, sec_y, sed_y);
     return u2_ci_bytes(32, pub_y);
   }
diff --git a/gen164/5/ed_sign.c b/gen164/5/ed_sign.c
index 687425dbb2..b0d5f41e5a 100644
--- a/gen164/5/ed_sign.c
+++ b/gen164/5/ed_sign.c
@@ -15,28 +15,24 @@
                         u2_noun b)                                //  retain
   {
     c3_y sig_y[64];
-    c3_y sec_y[32];
-    c3_y pub_y[32];
     c3_y sed_y[32];
-
-    c3_w secm_w = u2_met(3, b);
+    c3_y pub_y[64];
+    c3_y sec_y[64];
 
     c3_w mesm_w = u2_met(3, a);
+    c3_w mess_w = u2_met(3, b);
 
     c3_y* mes_y = 0;
 
+    memset(sig_y, 0, 64);
+    memset(sed_y, 0, 32);
+    memset(pub_y, 0, 64);
+    memset(sec_y, 0, 64);
 
-    if ( 64 < secm_w ) {
-      return u2_bl_bail(wir_r, c3__exit);
-    }
-    memset(&sig_y, 64, 0);
-    memset(&pub_y, 32, 0);
-
-    mes_y = c3_malloc(mesm_w);
-    memset(sec_y, 0, 32);
+    mes_y = malloc(mesm_w);
 
     u2_cr_bytes(0, mesm_w, mes_y, a);
-    u2_cr_bytes(0, 32, sed_y, b);
+    u2_cr_bytes(0, mess_w, sed_y, b);
 
     ed25519_create_keypair(pub_y, sec_y, sed_y);
     ed25519_sign(sig_y, mes_y, mesm_w, pub_y, sec_y);
diff --git a/gen164/5/ed_veri.c b/gen164/5/ed_veri.c
index a15e0aff9e..a40696600b 100644
--- a/gen164/5/ed_veri.c
+++ b/gen164/5/ed_veri.c
@@ -16,17 +16,19 @@
                               u2_noun pk)
   {
     c3_y  sig_y[64];
-    c3_y  pub_y[32];
+    c3_y  pub_y[64];
+    c3_w ret;
     c3_y* mes_y;
 
     c3_w mesm_w = u2_met(3, s);
-    c3_w ret;
-    memset(&sig_y, 64, 0);
-    memset(&pub_y, 32, 0);
+
+    memset(sig_y, 0, 64);
+    memset(pub_y, 0, 64);
+
     mes_y = c3_malloc(mesm_w);
 
     u2_cr_bytes(0, 64, sig_y, s);
-    u2_cr_bytes(0, 32, pub_y, pk);
+    u2_cr_bytes(0, 64, pub_y, pk);
     u2_cr_bytes(0, mesm_w, mes_y, m);
 
     ret = ed25519_verify(sig_y, mes_y, mesm_w, pub_y) == 1 ? u2_yes : u2_no;