--- /dev/null
+/* $OpenBSD: umac.h,v 1.1 2007/06/07 19:37:34 pvalchev Exp $ */
+/* -----------------------------------------------------------------------
+ *
+ * umac.h -- C Implementation UMAC Message Authentication
+ *
+ * Version 0.93a of rfc4418.txt -- 2006 July 14
+ *
+ * For a full description of UMAC message authentication see the UMAC
+ * world-wide-web page at http://www.cs.ucdavis.edu/~rogaway/umac
+ * Please report bugs and suggestions to the UMAC webpage.
+ *
+ * Copyright (c) 1999-2004 Ted Krovetz
+ *
+ * Permission to use, copy, modify, and distribute this software and
+ * its documentation for any purpose and with or without fee, is hereby
+ * granted provided that the above copyright notice appears in all copies
+ * and in supporting documentation, and that the name of the copyright
+ * holder not be used in advertising or publicity pertaining to
+ * distribution of the software without specific, written prior permission.
+ *
+ * Comments should be directed to Ted Krovetz (tdk@acm.org)
+ *
+ * ---------------------------------------------------------------------- */
+
+ /* ////////////////////// IMPORTANT NOTES /////////////////////////////////
+ *
+ * 1) This version does not work properly on messages larger than 16MB
+ *
+ * 2) If you set the switch to use SSE2, then all data must be 16-byte
+ * aligned
+ *
+ * 3) When calling the function umac(), it is assumed that msg is in
+ * a writable buffer of length divisible by 32 bytes. The message itself
+ * does not have to fill the entire buffer, but bytes beyond msg may be
+ * zeroed.
+ *
+ * 4) Two free AES implementations are supported by this implementation of
+ * UMAC. Paulo Barreto's version is in the public domain and can be found
+ * at http://www.esat.kuleuven.ac.be/~rijmen/rijndael/ (search for
+ * "Barreto"). The only two files needed are rijndael-alg-fst.c and
+ * rijndael-alg-fst.h.
+ * Brian Gladman's version is distributed with GNU Public lisence
+ * and can be found at http://fp.gladman.plus.com/AES/index.htm. It
+ * includes a fast IA-32 assembly version.
+ *
+ /////////////////////////////////////////////////////////////////////// */
+#ifndef HEADER_UMAC_H
+#define HEADER_UMAC_H
+
+
+#ifdef __cplusplus
+ extern "C" {
+#endif
+
+struct umac_ctx *umac_new(u_char key[]);
+/* Dynamically allocate a umac_ctx struct, initialize variables,
+ * generate subkeys from key.
+ */
+
+#if 0
+int umac_reset(struct umac_ctx *ctx);
+/* Reset a umac_ctx to begin authenicating a new message */
+#endif
+
+int umac_update(struct umac_ctx *ctx, u_char *input, long len);
+/* Incorporate len bytes pointed to by input into context ctx */
+
+int umac_final(struct umac_ctx *ctx, u_char tag[], u_char nonce[8]);
+/* Incorporate any pending data and the ctr value, and return tag.
+ * This function returns error code if ctr < 0.
+ */
+
+int umac_delete(struct umac_ctx *ctx);
+/* Deallocate the context structure */
+
+#if 0
+int umac(struct umac_ctx *ctx, u_char *input,
+ long len, u_char tag[],
+ u_char nonce[8]);
+/* All-in-one implementation of the functions Reset, Update and Final */
+#endif
+
+/* uhash.h */
+
+
+#if 0
+typedef struct uhash_ctx *uhash_ctx_t;
+ /* The uhash_ctx structure is defined by the implementation of the */
+ /* UHASH functions. */
+
+uhash_ctx_t uhash_alloc(u_char key[16]);
+ /* Dynamically allocate a uhash_ctx struct and generate subkeys using */
+ /* the kdf and kdf_key passed in. If kdf_key_len is 0 then RC6 is */
+ /* used to generate key with a fixed key. If kdf_key_len > 0 but kdf */
+ /* is NULL then the first 16 bytes pointed at by kdf_key is used as a */
+ /* key for an RC6 based KDF. */
+
+int uhash_free(uhash_ctx_t ctx);
+
+int uhash_set_params(uhash_ctx_t ctx,
+ void *params);
+
+int uhash_reset(uhash_ctx_t ctx);
+
+int uhash_update(uhash_ctx_t ctx,
+ u_char *input,
+ long len);
+
+int uhash_final(uhash_ctx_t ctx,
+ u_char ouput[]);
+
+int uhash(uhash_ctx_t ctx,
+ u_char *input,
+ long len,
+ u_char output[]);
+
+#endif
+
+#ifdef __cplusplus
+ }
+#endif
+
+#endif /* HEADER_UMAC_H */
andersk / openssh.git / blobdiff