diff sprng.c @ 3:7faae8f46238 libtomcrypt-orig

Branch renaming
author Matt Johnston <matt@ucc.asn.au>
date Mon, 31 May 2004 18:25:41 +0000
parents
children 5d99163f7e32
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/sprng.c	Mon May 31 18:25:41 2004 +0000
@@ -0,0 +1,53 @@
+/* LibTomCrypt, modular cryptographic library -- Tom St Denis
+ *
+ * LibTomCrypt is a library that provides various cryptographic
+ * algorithms in a highly modular and flexible manner.
+ *
+ * The library is free for all purposes without any express
+ * guarantee it works.
+ *
+ * Tom St Denis, [email protected], http://libtomcrypt.org
+ */
+
+/* A secure PRNG using the RNG functions.  Basically this is a
+ * wrapper that allows you to use a secure RNG as a PRNG
+ * in the various other functions.
+ */
+#include "mycrypt.h"
+
+#ifdef SPRNG
+
+const struct _prng_descriptor sprng_desc =
+{
+    "sprng",
+    &sprng_start,
+    &sprng_add_entropy,
+    &sprng_ready,
+    &sprng_read
+};
+
+int sprng_start(prng_state *prng)
+{
+   return CRYPT_OK;  
+}
+
+int sprng_add_entropy(const unsigned char *buf, unsigned long len, prng_state *prng)
+{
+   return CRYPT_OK;
+}
+
+int sprng_ready(prng_state *prng)
+{
+   return CRYPT_OK;
+}
+
+unsigned long sprng_read(unsigned char *buf, unsigned long len, prng_state *prng)
+{
+   _ARGCHK(buf != NULL);
+   return rng_get_bytes(buf, len, NULL);
+}
+
+#endif
+
+
+