kernel: replace various custom random iv buffer filling functions with calls to prng()

[plan9front.git] / sys / src / 9 / port / devtls.c

diff --git a/sys/src/9/port/devtls.c b/sys/src/9/port/devtls.c
index 3f864a7fc939099f60535d08e3707504225156aa..c417b38b5d6b7ad4df0a29556da800f53175c590 100644 (file)
--- a/sys/src/9/port/devtls.c
+++ b/sys/src/9/port/devtls.c
@@ -1234,13 +1234,6 @@ tlsread(Chan *c, void *a, long n, vlong off)
        return n;
 }
 
-static void
-randfill(uchar *buf, int len)
-{
-       while(len-- > 0)
-               *buf++ = nrand(256);
-}
-
 /*
  *  write a block in tls records
  */
@@ -1325,7 +1318,7 @@ if(tr->debug)pdump(BLEN(b), b->rp, "sent:");
                                n = (*sec->aead_enc)(sec, aad, aadlen, p + RecHdrLen, p + RecHdrLen + ivlen, n) + ivlen;
                        else {
                                if(ivlen > 0)
-                                       randfill(p + RecHdrLen, ivlen);
+                                       prng(p + RecHdrLen, ivlen);
                                packMac(sec, aad, aadlen, p + RecHdrLen + ivlen, n, p + RecHdrLen + ivlen + n);
                                n = (*sec->enc)(sec, p + RecHdrLen, ivlen + n + maclen);
                        }
@@ -1523,7 +1516,7 @@ initaesgcmkey(Encalg *ea, Secret *s, uchar *p, uchar *iv)
        s->maclen = 16;
        s->recivlen = 8;
        memmove(s->mackey, iv, ea->ivlen);
-       randfill(s->mackey + ea->ivlen, s->recivlen);
+       prng(s->mackey + ea->ivlen, s->recivlen);
        setupAESGCMstate(s->enckey, p, ea->keylen, nil, 0);
 }