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/*############################################################################
# Copyright 2016 Intel Corporation
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
############################################################################*/
/*
//
// Purpose:
// Cryptography Primitive.
// Message block processing according to MD5
//
// Contents:
// UpdateMD5()
//
//
*/
#include "precomp.h"
#include "owncp.h"
#include "pcphash.h"
#include "pcptool.h"
#if !defined(_ENABLE_ALG_MD5_)
#pragma message("IPP_ALG_HASH_MD5 disabled")
#else
#pragma message("IPP_ALG_HASH_MD5 enabled")
#if !((_IPPXSC==_IPPXSC_S1) || (_IPPXSC==_IPPXSC_S2) || (_IPPXSC==_IPPXSC_C2) || \
(_IPP==_IPP_M5) || \
(_IPP==_IPP_W7) || (_IPP==_IPP_T7) || \
(_IPP==_IPP_V8) || (_IPP==_IPP_P8) || \
(_IPPLP32==_IPPLP32_S8) || (_IPP>=_IPP_G9) || \
(_IPP32E==_IPP32E_M7) || \
(_IPP32E==_IPP32E_U8) || (_IPP32E==_IPP32E_Y8) || \
(_IPPLP64==_IPPLP64_N8) || (_IPP32E>=_IPP32E_E9) || \
(_IPP64==_IPP64_I7) )
/*
// Magic functions defined in RFC 1321
//
*/
#define F(X,Y,Z) ((Z) ^ ((X) & ((Y) ^ (Z)))) /* sightly optimized form of (((X) & (Y)) | ((~(X) & (Z)))*/
#define G(X,Y,Z) F((Z),(X),(Y)) /* replace the original (((X) & (Z)) | ((Y) & ~(Z))) */
#define H(X,Y,Z) ((X) ^ (Y) ^ (Z))
#define I(X,Y,Z) ((Y) ^ ((X) | ~(Z)))
/*
// MD5 step
*/
#define MD5_STEP(MAGIC, A,B,C,D, data, constant, nrot) \
(A = B +ROL32((A +MAGIC(B,C,D) +data +constant), nrot))
/*
// MD5 left rotations (number of bits)
// depends on round type
*/
#define F1 7
#define F2 12
#define F3 17
#define F4 22
#define G1 5
#define G2 9
#define G3 14
#define G4 20
#define H1 4
#define H2 11
#define H3 16
#define H4 23
#define I1 6
#define I2 10
#define I3 15
#define I4 21
/*F*
// Name: UpdateMD5
//
// Purpose: Update internal hash according to input message stream.
//
// Parameters:
// uniHash pointer to in/out hash
// mblk pointer to message stream
// mlen message stream length (multiple by message block size)
// uniParam pointer to the optional parameter
//
*F*/
void UpdateMD5(void* uinHash, const Ipp8u* mblk, int mlen, const void* uniParam)
{
Ipp32u* digest = (Ipp32u*)uinHash;
Ipp32u* MD5_cnt_loc = (Ipp32u*)uniParam;
for(; mlen>=MBS_MD5; mblk += MBS_MD5, mlen -= MBS_MD5) {
/* allocate data */
#if (IPP_ENDIAN == IPP_BIG_ENDIAN)
Ipp32u data[MBS_MD5/sizeof(Ipp32u)];
#else
/* or just word alias */
Ipp32u* data = (Ipp32u*)mblk;
#endif
/* init variables */
Ipp32u a = digest[0];
Ipp32u b = digest[1];
Ipp32u c = digest[2];
Ipp32u d = digest[3];
#if (IPP_ENDIAN == IPP_BIG_ENDIAN)
int t;
for(t=0; t<16; t++) {
data[t] = ENDIANNESS(((Ipp32u*)mblk)[t]);
}
#endif
/* rounds type F */
MD5_STEP(F, a,b,c,d, data[ 0], MD5_cnt_loc[ 0], F1);
MD5_STEP(F, d,a,b,c, data[ 1], MD5_cnt_loc[ 1], F2);
MD5_STEP(F, c,d,a,b, data[ 2], MD5_cnt_loc[ 2], F3);
MD5_STEP(F, b,c,d,a, data[ 3], MD5_cnt_loc[ 3], F4);
MD5_STEP(F, a,b,c,d, data[ 4], MD5_cnt_loc[ 4], F1);
MD5_STEP(F, d,a,b,c, data[ 5], MD5_cnt_loc[ 5], F2);
MD5_STEP(F, c,d,a,b, data[ 6], MD5_cnt_loc[ 6], F3);
MD5_STEP(F, b,c,d,a, data[ 7], MD5_cnt_loc[ 7], F4);
MD5_STEP(F, a,b,c,d, data[ 8], MD5_cnt_loc[ 8], F1);
MD5_STEP(F, d,a,b,c, data[ 9], MD5_cnt_loc[ 9], F2);
MD5_STEP(F, c,d,a,b, data[10], MD5_cnt_loc[10], F3);
MD5_STEP(F, b,c,d,a, data[11], MD5_cnt_loc[11], F4);
MD5_STEP(F, a,b,c,d, data[12], MD5_cnt_loc[12], F1);
MD5_STEP(F, d,a,b,c, data[13], MD5_cnt_loc[13], F2);
MD5_STEP(F, c,d,a,b, data[14], MD5_cnt_loc[14], F3);
MD5_STEP(F, b,c,d,a, data[15], MD5_cnt_loc[15], F4);
/* rounds type G */
MD5_STEP(G, a,b,c,d, data[ 1], MD5_cnt_loc[16], G1);
MD5_STEP(G, d,a,b,c, data[ 6], MD5_cnt_loc[17], G2);
MD5_STEP(G, c,d,a,b, data[11], MD5_cnt_loc[18], G3);
MD5_STEP(G, b,c,d,a, data[ 0], MD5_cnt_loc[19], G4);
MD5_STEP(G, a,b,c,d, data[ 5], MD5_cnt_loc[20], G1);
MD5_STEP(G, d,a,b,c, data[10], MD5_cnt_loc[21], G2);
MD5_STEP(G, c,d,a,b, data[15], MD5_cnt_loc[22], G3);
MD5_STEP(G, b,c,d,a, data[ 4], MD5_cnt_loc[23], G4);
MD5_STEP(G, a,b,c,d, data[ 9], MD5_cnt_loc[24], G1);
MD5_STEP(G, d,a,b,c, data[14], MD5_cnt_loc[25], G2);
MD5_STEP(G, c,d,a,b, data[ 3], MD5_cnt_loc[26], G3);
MD5_STEP(G, b,c,d,a, data[ 8], MD5_cnt_loc[27], G4);
MD5_STEP(G, a,b,c,d, data[13], MD5_cnt_loc[28], G1);
MD5_STEP(G, d,a,b,c, data[ 2], MD5_cnt_loc[29], G2);
MD5_STEP(G, c,d,a,b, data[ 7], MD5_cnt_loc[30], G3);
MD5_STEP(G, b,c,d,a, data[12], MD5_cnt_loc[31], G4);
/* rounds type H */
MD5_STEP(H, a,b,c,d, data[ 5], MD5_cnt_loc[32], H1);
MD5_STEP(H, d,a,b,c, data[ 8], MD5_cnt_loc[33], H2);
MD5_STEP(H, c,d,a,b, data[11], MD5_cnt_loc[34], H3);
MD5_STEP(H, b,c,d,a, data[14], MD5_cnt_loc[35], H4);
MD5_STEP(H, a,b,c,d, data[ 1], MD5_cnt_loc[36], H1);
MD5_STEP(H, d,a,b,c, data[ 4], MD5_cnt_loc[37], H2);
MD5_STEP(H, c,d,a,b, data[ 7], MD5_cnt_loc[38], H3);
MD5_STEP(H, b,c,d,a, data[10], MD5_cnt_loc[39], H4);
MD5_STEP(H, a,b,c,d, data[13], MD5_cnt_loc[40], H1);
MD5_STEP(H, d,a,b,c, data[ 0], MD5_cnt_loc[41], H2);
MD5_STEP(H, c,d,a,b, data[ 3], MD5_cnt_loc[42], H3);
MD5_STEP(H, b,c,d,a, data[ 6], MD5_cnt_loc[43], H4);
MD5_STEP(H, a,b,c,d, data[ 9], MD5_cnt_loc[44], H1);
MD5_STEP(H, d,a,b,c, data[12], MD5_cnt_loc[45], H2);
MD5_STEP(H, c,d,a,b, data[15], MD5_cnt_loc[46], H3);
MD5_STEP(H, b,c,d,a, data[ 2], MD5_cnt_loc[47], H4);
/* rounds type I */
MD5_STEP(I, a,b,c,d, data[ 0], MD5_cnt_loc[48], I1);
MD5_STEP(I, d,a,b,c, data[ 7], MD5_cnt_loc[49], I2);
MD5_STEP(I, c,d,a,b, data[14], MD5_cnt_loc[50], I3);
MD5_STEP(I, b,c,d,a, data[ 5], MD5_cnt_loc[51], I4);
MD5_STEP(I, a,b,c,d, data[12], MD5_cnt_loc[52], I1);
MD5_STEP(I, d,a,b,c, data[ 3], MD5_cnt_loc[53], I2);
MD5_STEP(I, c,d,a,b, data[10], MD5_cnt_loc[54], I3);
MD5_STEP(I, b,c,d,a, data[ 1], MD5_cnt_loc[55], I4);
MD5_STEP(I, a,b,c,d, data[ 8], MD5_cnt_loc[56], I1);
MD5_STEP(I, d,a,b,c, data[15], MD5_cnt_loc[57], I2);
MD5_STEP(I, c,d,a,b, data[ 6], MD5_cnt_loc[58], I3);
MD5_STEP(I, b,c,d,a, data[13], MD5_cnt_loc[59], I4);
MD5_STEP(I, a,b,c,d, data[ 4], MD5_cnt_loc[60], I1);
MD5_STEP(I, d,a,b,c, data[11], MD5_cnt_loc[61], I2);
MD5_STEP(I, c,d,a,b, data[ 2], MD5_cnt_loc[62], I3);
MD5_STEP(I, b,c,d,a, data[ 9], MD5_cnt_loc[63], I4);
/* update digest */
digest[0] += a;
digest[1] += b;
digest[2] += c;
digest[3] += d;
}
}
#endif
#endif /* IPP_ALG_HASH_MD5 */
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