1*f6dc9357SAndroid Build Coastguard Worker // HmacSha1.cpp
2*f6dc9357SAndroid Build Coastguard Worker
3*f6dc9357SAndroid Build Coastguard Worker #include "StdAfx.h"
4*f6dc9357SAndroid Build Coastguard Worker
5*f6dc9357SAndroid Build Coastguard Worker #include <string.h>
6*f6dc9357SAndroid Build Coastguard Worker
7*f6dc9357SAndroid Build Coastguard Worker #include "../../../C/CpuArch.h"
8*f6dc9357SAndroid Build Coastguard Worker
9*f6dc9357SAndroid Build Coastguard Worker #include "HmacSha1.h"
10*f6dc9357SAndroid Build Coastguard Worker
11*f6dc9357SAndroid Build Coastguard Worker namespace NCrypto {
12*f6dc9357SAndroid Build Coastguard Worker namespace NSha1 {
13*f6dc9357SAndroid Build Coastguard Worker
SetKey(const Byte * key,size_t keySize)14*f6dc9357SAndroid Build Coastguard Worker void CHmac::SetKey(const Byte *key, size_t keySize)
15*f6dc9357SAndroid Build Coastguard Worker {
16*f6dc9357SAndroid Build Coastguard Worker MY_ALIGN (16)
17*f6dc9357SAndroid Build Coastguard Worker UInt32 temp[SHA1_NUM_BLOCK_WORDS];
18*f6dc9357SAndroid Build Coastguard Worker size_t i;
19*f6dc9357SAndroid Build Coastguard Worker
20*f6dc9357SAndroid Build Coastguard Worker for (i = 0; i < SHA1_NUM_BLOCK_WORDS; i++)
21*f6dc9357SAndroid Build Coastguard Worker temp[i] = 0;
22*f6dc9357SAndroid Build Coastguard Worker
23*f6dc9357SAndroid Build Coastguard Worker if (keySize > kBlockSize)
24*f6dc9357SAndroid Build Coastguard Worker {
25*f6dc9357SAndroid Build Coastguard Worker _sha.Init();
26*f6dc9357SAndroid Build Coastguard Worker _sha.Update(key, keySize);
27*f6dc9357SAndroid Build Coastguard Worker _sha.Final((Byte *)temp);
28*f6dc9357SAndroid Build Coastguard Worker }
29*f6dc9357SAndroid Build Coastguard Worker else
30*f6dc9357SAndroid Build Coastguard Worker memcpy(temp, key, keySize);
31*f6dc9357SAndroid Build Coastguard Worker
32*f6dc9357SAndroid Build Coastguard Worker for (i = 0; i < SHA1_NUM_BLOCK_WORDS; i++)
33*f6dc9357SAndroid Build Coastguard Worker temp[i] ^= 0x36363636;
34*f6dc9357SAndroid Build Coastguard Worker
35*f6dc9357SAndroid Build Coastguard Worker _sha.Init();
36*f6dc9357SAndroid Build Coastguard Worker _sha.Update((const Byte *)temp, kBlockSize);
37*f6dc9357SAndroid Build Coastguard Worker
38*f6dc9357SAndroid Build Coastguard Worker for (i = 0; i < SHA1_NUM_BLOCK_WORDS; i++)
39*f6dc9357SAndroid Build Coastguard Worker temp[i] ^= 0x36363636 ^ 0x5C5C5C5C;
40*f6dc9357SAndroid Build Coastguard Worker
41*f6dc9357SAndroid Build Coastguard Worker _sha2.Init();
42*f6dc9357SAndroid Build Coastguard Worker _sha2.Update((const Byte *)temp, kBlockSize);
43*f6dc9357SAndroid Build Coastguard Worker }
44*f6dc9357SAndroid Build Coastguard Worker
45*f6dc9357SAndroid Build Coastguard Worker
Final(Byte * mac)46*f6dc9357SAndroid Build Coastguard Worker void CHmac::Final(Byte *mac)
47*f6dc9357SAndroid Build Coastguard Worker {
48*f6dc9357SAndroid Build Coastguard Worker _sha.Final(mac);
49*f6dc9357SAndroid Build Coastguard Worker _sha2.Update(mac, kDigestSize);
50*f6dc9357SAndroid Build Coastguard Worker _sha2.Final(mac);
51*f6dc9357SAndroid Build Coastguard Worker }
52*f6dc9357SAndroid Build Coastguard Worker
53*f6dc9357SAndroid Build Coastguard Worker
GetLoopXorDigest1(void * mac,UInt32 numIteration)54*f6dc9357SAndroid Build Coastguard Worker void CHmac::GetLoopXorDigest1(void *mac, UInt32 numIteration)
55*f6dc9357SAndroid Build Coastguard Worker {
56*f6dc9357SAndroid Build Coastguard Worker MY_ALIGN (16) UInt32 block [SHA1_NUM_BLOCK_WORDS];
57*f6dc9357SAndroid Build Coastguard Worker MY_ALIGN (16) UInt32 block2[SHA1_NUM_BLOCK_WORDS];
58*f6dc9357SAndroid Build Coastguard Worker MY_ALIGN (16) UInt32 mac2 [SHA1_NUM_BLOCK_WORDS];
59*f6dc9357SAndroid Build Coastguard Worker
60*f6dc9357SAndroid Build Coastguard Worker _sha. PrepareBlock((Byte *)block, SHA1_DIGEST_SIZE);
61*f6dc9357SAndroid Build Coastguard Worker _sha2.PrepareBlock((Byte *)block2, SHA1_DIGEST_SIZE);
62*f6dc9357SAndroid Build Coastguard Worker
63*f6dc9357SAndroid Build Coastguard Worker block[0] = ((const UInt32 *)mac)[0];
64*f6dc9357SAndroid Build Coastguard Worker block[1] = ((const UInt32 *)mac)[1];
65*f6dc9357SAndroid Build Coastguard Worker block[2] = ((const UInt32 *)mac)[2];
66*f6dc9357SAndroid Build Coastguard Worker block[3] = ((const UInt32 *)mac)[3];
67*f6dc9357SAndroid Build Coastguard Worker block[4] = ((const UInt32 *)mac)[4];
68*f6dc9357SAndroid Build Coastguard Worker
69*f6dc9357SAndroid Build Coastguard Worker mac2[0] = block[0];
70*f6dc9357SAndroid Build Coastguard Worker mac2[1] = block[1];
71*f6dc9357SAndroid Build Coastguard Worker mac2[2] = block[2];
72*f6dc9357SAndroid Build Coastguard Worker mac2[3] = block[3];
73*f6dc9357SAndroid Build Coastguard Worker mac2[4] = block[4];
74*f6dc9357SAndroid Build Coastguard Worker
75*f6dc9357SAndroid Build Coastguard Worker for (UInt32 i = 0; i < numIteration; i++)
76*f6dc9357SAndroid Build Coastguard Worker {
77*f6dc9357SAndroid Build Coastguard Worker _sha. GetBlockDigest((const Byte *)block, (Byte *)block2);
78*f6dc9357SAndroid Build Coastguard Worker _sha2.GetBlockDigest((const Byte *)block2, (Byte *)block);
79*f6dc9357SAndroid Build Coastguard Worker
80*f6dc9357SAndroid Build Coastguard Worker mac2[0] ^= block[0];
81*f6dc9357SAndroid Build Coastguard Worker mac2[1] ^= block[1];
82*f6dc9357SAndroid Build Coastguard Worker mac2[2] ^= block[2];
83*f6dc9357SAndroid Build Coastguard Worker mac2[3] ^= block[3];
84*f6dc9357SAndroid Build Coastguard Worker mac2[4] ^= block[4];
85*f6dc9357SAndroid Build Coastguard Worker }
86*f6dc9357SAndroid Build Coastguard Worker
87*f6dc9357SAndroid Build Coastguard Worker ((UInt32 *)mac)[0] = mac2[0];
88*f6dc9357SAndroid Build Coastguard Worker ((UInt32 *)mac)[1] = mac2[1];
89*f6dc9357SAndroid Build Coastguard Worker ((UInt32 *)mac)[2] = mac2[2];
90*f6dc9357SAndroid Build Coastguard Worker ((UInt32 *)mac)[3] = mac2[3];
91*f6dc9357SAndroid Build Coastguard Worker ((UInt32 *)mac)[4] = mac2[4];
92*f6dc9357SAndroid Build Coastguard Worker }
93*f6dc9357SAndroid Build Coastguard Worker
94*f6dc9357SAndroid Build Coastguard Worker }}
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