alt-sha512.cpp revision 0ff3ea690ada5a31247aa874ec391cf898536876
/* $Id$ */
/** @file
* IPRT - SHA-512 and SHA-384 hash functions, Alternative Implementation.
*/
/*
* Copyright (C) 2009-2014 Oracle Corporation
*
* This file is part of VirtualBox Open Source Edition (OSE), as
* available from http://www.virtualbox.org. This file is free software;
* General Public License (GPL) as published by the Free Software
* Foundation, in version 2 as it comes in the "COPYING" file of the
* VirtualBox OSE distribution. VirtualBox OSE is distributed in the
* hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
*
* The contents of this file may alternatively be used under the terms
* of the Common Development and Distribution License Version 1.0
* (CDDL) only, as it comes in the "COPYING.CDDL" file of the
* VirtualBox OSE distribution, in which case the provisions of the
* CDDL are applicable instead of those of the GPL.
*
* You may elect to license modified versions of this file under the
* terms and conditions of either the GPL or the CDDL or both.
*/
/*******************************************************************************
* Defined Constants And Macros *
*******************************************************************************/
/** The SHA-512 block size (in bytes). */
#define RTSHA512_BLOCK_SIZE 128U
/*******************************************************************************
* Header Files *
*******************************************************************************/
/** Our private context structure. */
typedef struct RTSHA512ALTPRIVATECTX
{
/** The W array.
* Buffering happens in the first 16 words, converted from big endian to host
* endian immediately before processing. The amount of buffered data is kept
* in the 6 least significant bits of cbMessage. */
/** The message length (in bytes). */
/** The 8 hash values. */
#define RT_SHA512_PRIVATE_ALT_CONTEXT
AssertCompile(RT_SIZEOFMEMB(RTSHA512CONTEXT, abPadding) >= RT_SIZEOFMEMB(RTSHA512CONTEXT, AltPrivate));
/*******************************************************************************
* Global Variables *
*******************************************************************************/
/** The K constants. */
{
UINT64_C(0x428a2f98d728ae22), UINT64_C(0x7137449123ef65cd), UINT64_C(0xb5c0fbcfec4d3b2f), UINT64_C(0xe9b5dba58189dbbc),
UINT64_C(0x3956c25bf348b538), UINT64_C(0x59f111f1b605d019), UINT64_C(0x923f82a4af194f9b), UINT64_C(0xab1c5ed5da6d8118),
UINT64_C(0xd807aa98a3030242), UINT64_C(0x12835b0145706fbe), UINT64_C(0x243185be4ee4b28c), UINT64_C(0x550c7dc3d5ffb4e2),
UINT64_C(0x72be5d74f27b896f), UINT64_C(0x80deb1fe3b1696b1), UINT64_C(0x9bdc06a725c71235), UINT64_C(0xc19bf174cf692694),
UINT64_C(0xe49b69c19ef14ad2), UINT64_C(0xefbe4786384f25e3), UINT64_C(0x0fc19dc68b8cd5b5), UINT64_C(0x240ca1cc77ac9c65),
UINT64_C(0x2de92c6f592b0275), UINT64_C(0x4a7484aa6ea6e483), UINT64_C(0x5cb0a9dcbd41fbd4), UINT64_C(0x76f988da831153b5),
UINT64_C(0x983e5152ee66dfab), UINT64_C(0xa831c66d2db43210), UINT64_C(0xb00327c898fb213f), UINT64_C(0xbf597fc7beef0ee4),
UINT64_C(0xc6e00bf33da88fc2), UINT64_C(0xd5a79147930aa725), UINT64_C(0x06ca6351e003826f), UINT64_C(0x142929670a0e6e70),
UINT64_C(0x27b70a8546d22ffc), UINT64_C(0x2e1b21385c26c926), UINT64_C(0x4d2c6dfc5ac42aed), UINT64_C(0x53380d139d95b3df),
UINT64_C(0x650a73548baf63de), UINT64_C(0x766a0abb3c77b2a8), UINT64_C(0x81c2c92e47edaee6), UINT64_C(0x92722c851482353b),
UINT64_C(0xa2bfe8a14cf10364), UINT64_C(0xa81a664bbc423001), UINT64_C(0xc24b8b70d0f89791), UINT64_C(0xc76c51a30654be30),
UINT64_C(0xd192e819d6ef5218), UINT64_C(0xd69906245565a910), UINT64_C(0xf40e35855771202a), UINT64_C(0x106aa07032bbd1b8),
UINT64_C(0x19a4c116b8d2d0c8), UINT64_C(0x1e376c085141ab53), UINT64_C(0x2748774cdf8eeb99), UINT64_C(0x34b0bcb5e19b48a8),
UINT64_C(0x391c0cb3c5c95a63), UINT64_C(0x4ed8aa4ae3418acb), UINT64_C(0x5b9cca4f7763e373), UINT64_C(0x682e6ff3d6b2b8a3),
UINT64_C(0x748f82ee5defb2fc), UINT64_C(0x78a5636f43172f60), UINT64_C(0x84c87814a1f0ab72), UINT64_C(0x8cc702081a6439ec),
UINT64_C(0x90befffa23631e28), UINT64_C(0xa4506cebde82bde9), UINT64_C(0xbef9a3f7b2c67915), UINT64_C(0xc67178f2e372532b),
UINT64_C(0xca273eceea26619c), UINT64_C(0xd186b8c721c0c207), UINT64_C(0xeada7dd6cde0eb1e), UINT64_C(0xf57d4f7fee6ed178),
UINT64_C(0x06f067aa72176fba), UINT64_C(0x0a637dc5a2c898a6), UINT64_C(0x113f9804bef90dae), UINT64_C(0x1b710b35131c471b),
UINT64_C(0x28db77f523047d84), UINT64_C(0x32caab7b40c72493), UINT64_C(0x3c9ebe0a15c9bebc), UINT64_C(0x431d67c49c100d4c),
UINT64_C(0x4cc5d4becb3e42b6), UINT64_C(0x597f299cfc657e2a), UINT64_C(0x5fcb6fab3ad6faec), UINT64_C(0x6c44198c4a475817),
};
{
}
/** Function 4.8. */
{
return uResult;
}
/** Function 4.9. */
{
return uResult;
}
/** Function 4.10. */
{
return uResult;
}
/** Function 4.11. */
{
return uResult;
}
/** Function 4.12. */
{
return uResult;
}
/** Function 4.13. */
{
return uResult;
}
/**
* Initializes the auW array from the specfied input block.
*
* @param pCtx The SHA-512 context.
* @param pbBlock The block. Must be 32-bit aligned.
*/
{
unsigned iWord;
{
}
}
/**
* Initializes the auW array from data buffered in the first part of the array.
*
* @param pCtx The SHA-512 context.
*/
{
unsigned iWord;
{
}
}
/**
* Process the current block.
*
* Requires one of the rtSha512BlockInit functions to be called first.
*
* @param pCtx The SHA-512 context.
*/
{
{
}
}
{
/*
* Deal with buffered bytes first.
*/
if (cbBuffered)
{
{
}
else
{
return;
}
}
{
/*
* Process full blocks directly from the input buffer.
*/
while (cbBuf >= RTSHA512_BLOCK_SIZE)
{
}
}
else
{
/*
* Unaligned input, so buffer it.
*/
while (cbBuf >= RTSHA512_BLOCK_SIZE)
{
}
}
/*
* Stash any remaining bytes into the context buffer.
*/
if (cbBuf > 0)
{
}
}
/**
* Internal worker for RTSha512Final and RTSha384Final that finalizes the
* computation but does not copy out the hash value.
*
* @param pCtx The SHA-512 context.
*/
{
/*
* Complete the message by adding a single bit (0x80), padding till
* the next 448-bit boundrary, the add the message length.
*/
unsigned cbMissing = RTSHA512_BLOCK_SIZE - ((unsigned)pCtx->AltPrivate.cbMessage.s.Lo & (RTSHA512_BLOCK_SIZE - 1U));
{ 0x80, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,};
/* Less than 64+16 bits left in the current block, force a new block. */
else
/*
* Process the last buffered block constructed/completed above.
*/
/*
* Convert the byte order of the hash words and we're done.
*/
}
{
}
{
RTSha512Init(&Ctx);
}
/*
* SHA-384 is just SHA-512 with different initial values an a truncated result.
*/
{
}
{
}
{
}
{
RTSha384Init(&Ctx);
}
/*
* SHA-512/224 is just SHA-512 with different initial values an a truncated result.
*/
{
}
{
}
RTDECL(void) RTSha512t224Final(PRTSHA512T224CONTEXT pCtx, uint8_t pabDigest[RTSHA512T224_HASH_SIZE])
{
}
RTDECL(void) RTSha512t224(const void *pvBuf, size_t cbBuf, uint8_t pabDigest[RTSHA512T224_HASH_SIZE])
{
}
/*
* SHA-512/256 is just SHA-512 with different initial values an a truncated result.
*/
{
}
{
}
RTDECL(void) RTSha512t256Final(PRTSHA512T256CONTEXT pCtx, uint8_t pabDigest[RTSHA512T256_HASH_SIZE])
{
}
RTDECL(void) RTSha512t256(const void *pvBuf, size_t cbBuf, uint8_t pabDigest[RTSHA512T256_HASH_SIZE])
{
}