/*====================================================================* * * SHA256Reset (struct sha256 * sha256) * * SHA256.h * * initialize the SHA256 hash state; this effectively erases the * previous hash state; * * Read standard FIPS180-2 sec 5.3.2 for an explanation; * * Motley Tools by Charles Maier; * Copyright (c) 2001-2006 by Charles Maier Associates; * Licensed under the Internet Software Consortium License; * *--------------------------------------------------------------------*/ #ifndef SHA256RESET_SOURCE #define SHA256RESET_SOURCE #include "../key/SHA256.h" void SHA256Reset (struct sha256 * sha256) { memset (sha256, 0, sizeof (struct sha256)); sha256->state [0] = 0x6A09E667; sha256->state [1] = 0xBB67AE85; sha256->state [2] = 0x3C6EF372; sha256->state [3] = 0xA54FF53A; sha256->state [4] = 0x510E527F; sha256->state [5] = 0x9B05688C; sha256->state [6] = 0x1F83D9AB; sha256->state [7] = 0x5BE0CD19; sha256->extra [0] = 0x80; return; } #endif