These changes are the raw update to linux-4.4.6-rt14. Kernel sources

[kvmfornfv.git] / kernel / include / crypto / poly1305.h

diff --git a/kernel/include/crypto/poly1305.h b/kernel/include/crypto/poly1305.h
new file mode 100644 (file)
index 0000000..894df59
--- /dev/null
+++ b/kernel/include/crypto/poly1305.h
@@ -0,0 +1,41 @@
+/*
+ * Common values for the Poly1305 algorithm
+ */
+
+#ifndef _CRYPTO_POLY1305_H
+#define _CRYPTO_POLY1305_H
+
+#include <linux/types.h>
+#include <linux/crypto.h>
+
+#define POLY1305_BLOCK_SIZE    16
+#define POLY1305_KEY_SIZE      32
+#define POLY1305_DIGEST_SIZE   16
+
+struct poly1305_desc_ctx {
+       /* key */
+       u32 r[5];
+       /* finalize key */
+       u32 s[4];
+       /* accumulator */
+       u32 h[5];
+       /* partial buffer */
+       u8 buf[POLY1305_BLOCK_SIZE];
+       /* bytes used in partial buffer */
+       unsigned int buflen;
+       /* r key has been set */
+       bool rset;
+       /* s key has been set */
+       bool sset;
+};
+
+int crypto_poly1305_init(struct shash_desc *desc);
+int crypto_poly1305_setkey(struct crypto_shash *tfm,
+                          const u8 *key, unsigned int keylen);
+unsigned int crypto_poly1305_setdesckey(struct poly1305_desc_ctx *dctx,
+                                       const u8 *src, unsigned int srclen);
+int crypto_poly1305_update(struct shash_desc *desc,
+                          const u8 *src, unsigned int srclen);
+int crypto_poly1305_final(struct shash_desc *desc, u8 *dst);
+
+#endif