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authorNeil Horman <nhorman@tuxdriver.com>2008-08-14 16:15:52 +0400
committerHerbert Xu <herbert@gondor.apana.org.au>2008-08-29 09:50:04 +0400
commit17f0f4a47df9aea9ee26c939f8057c35e0be1847 (patch)
treed6c7ff6c93573227a49c9e8fe06c53d97950e4e6 /include/crypto/internal
parentccb778e1841ce04b4c10b39f0dd2558ab2c6dcd4 (diff)
downloadlinux-17f0f4a47df9aea9ee26c939f8057c35e0be1847.tar.xz
crypto: rng - RNG interface and implementation
This patch adds a random number generator interface as well as a cryptographic pseudo-random number generator based on AES. It is meant to be used in cases where a deterministic CPRNG is required. One of the first applications will be as an input in the IPsec IV generation process. Signed-off-by: Neil Horman <nhorman@tuxdriver.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'include/crypto/internal')
-rw-r--r--include/crypto/internal/rng.h26
1 files changed, 26 insertions, 0 deletions
diff --git a/include/crypto/internal/rng.h b/include/crypto/internal/rng.h
new file mode 100644
index 000000000000..896973369573
--- /dev/null
+++ b/include/crypto/internal/rng.h
@@ -0,0 +1,26 @@
+/*
+ * RNG: Random Number Generator algorithms under the crypto API
+ *
+ * Copyright (c) 2008 Neil Horman <nhorman@tuxdriver.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the Free
+ * Software Foundation; either version 2 of the License, or (at your option)
+ * any later version.
+ *
+ */
+
+#ifndef _CRYPTO_INTERNAL_RNG_H
+#define _CRYPTO_INTERNAL_RNG_H
+
+#include <crypto/algapi.h>
+#include <crypto/rng.h>
+
+extern const struct crypto_type crypto_rng_type;
+
+static inline void *crypto_rng_ctx(struct crypto_rng *tfm)
+{
+ return crypto_tfm_ctx(&tfm->base);
+}
+
+#endif