-/*----- Revision history --------------------------------------------------*
- *
- * $Log: sha256.h,v $
- * Revision 1.3 2004/03/21 22:43:34 mdw
- * New hash variant SHA224.
- *
- * Revision 1.2 2000/10/15 19:09:20 mdw
- * Support HMAC mode for hash functions which need to store more state than
- * the hash output size.
- *
- * Revision 1.1 2000/10/15 17:48:15 mdw
- * New SHA variants with longer outputs.
- *
- */
-
-/*----- Notes on the SHA-256 hash function ----------------------------------*