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gms/SKBB/sdkfreebsd64/libs/mhash-0.9.9.9/lib/mhash_sha256_sha224.h

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+/* mhash_sha256_sha224.h
+ *
+ * The sha256 and sha224 hash functions.
+ */
+
+/* nettle, low-level cryptographics library
+ *
+ * Copyright (C) 2001 Niels Möller
+ *  
+ * The nettle library is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation; either version 2.1 of the License, or (at your
+ * option) any later version.
+ * 
+ * The nettle library is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public
+ * License for more details.
+ * 
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with the nettle library; see the file COPYING.LIB.  If not, write to
+ * the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
+ * MA 02111-1307, USA.
+ */
+
+/* The SHA224 support was added by B. Poettering in April 2004. */
+
+#if defined(ENABLE_SHA256_SHA224)
+ 
+#if !defined(__MHASH_SHA256_SHA224_H_INCLUDED)
+#define __MHASH_SHA256_SHA224_H_INCLUDED
+
+
+/* SHA256 and SHA224 */
+
+#define SHA256_DIGEST_SIZE 32
+#define SHA224_DIGEST_SIZE 28
+#define SHA256_SHA224_DATA_SIZE 64
+
+/* State is kept internally as 8 32-bit words. */
+#define _SHA256_SHA224_DIGEST_LENGTH 8
+
+typedef struct sha256_sha224_ctx
+{
+  mutils_word32 state[_SHA256_SHA224_DIGEST_LENGTH]; /* State variables */
+  mutils_word64 bitcount;                            /* Bit counter */
+  mutils_word8 block[SHA256_SHA224_DATA_SIZE];        /* SHA256/224 data buffer */
+  mutils_word32 index;                         /* index into buffer */
+} SHA256_SHA224_CTX;
+
+void
+sha256_init(struct sha256_sha224_ctx *ctx);
+
+void
+sha224_init(struct sha256_sha224_ctx *ctx);
+
+void
+sha256_sha224_update(struct sha256_sha224_ctx *ctx, __const mutils_word8 *data, mutils_word32 length);
+
+void
+sha256_sha224_final(struct sha256_sha224_ctx *ctx);
+
+void
+sha256_digest(__const struct sha256_sha224_ctx *ctx, mutils_word8 *digest);
+
+void
+sha224_digest(__const struct sha256_sha224_ctx *ctx, mutils_word8 *digest);
+
+
+#endif /* __MHASH_SHA256_SHA224_H_INCLUDED */
+
+#endif