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chore: initial commit (extracted from Launchers monorepo)

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Plugin: ns7zip v2.0.0
Architectures: x86-ansi, x86-unicode, amd64-unicode
License: LGPL-2.1-or-later
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Simone
2026-04-29 14:07:51 +02:00
commit d074cc7c07
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versions/25.01/C/Sha3.c
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/* Sha3.c -- SHA-3 Hash
: Igor Pavlov : Public domain
This code is based on public domain code from Wei Dai's Crypto++ library. */
#include "Precomp.h"
#include <string.h>
#include "Sha3.h"
#include "RotateDefs.h"
#include "CpuArch.h"
#define U64C(x) UINT64_CONST(x)
static
MY_ALIGN(64)
const UInt64 SHA3_K_ARRAY[24] =
{
U64C(0x0000000000000001), U64C(0x0000000000008082),
U64C(0x800000000000808a), U64C(0x8000000080008000),
U64C(0x000000000000808b), U64C(0x0000000080000001),
U64C(0x8000000080008081), U64C(0x8000000000008009),
U64C(0x000000000000008a), U64C(0x0000000000000088),
U64C(0x0000000080008009), U64C(0x000000008000000a),
U64C(0x000000008000808b), U64C(0x800000000000008b),
U64C(0x8000000000008089), U64C(0x8000000000008003),
U64C(0x8000000000008002), U64C(0x8000000000000080),
U64C(0x000000000000800a), U64C(0x800000008000000a),
U64C(0x8000000080008081), U64C(0x8000000000008080),
U64C(0x0000000080000001), U64C(0x8000000080008008)
};
void Sha3_Init(CSha3 *p)
{
p->count = 0;
memset(p->state, 0, sizeof(p->state));
}
#define GET_state(i, a) UInt64 a = state[i];
#define SET_state(i, a) state[i] = a;
#define LS_5(M, i, a0,a1,a2,a3,a4) \
M ((i) * 5 , a0) \
M ((i) * 5 + 1, a1) \
M ((i) * 5 + 2, a2) \
M ((i) * 5 + 3, a3) \
M ((i) * 5 + 4, a4) \
#define LS_25(M) \
LS_5 (M, 0, a50, a51, a52, a53, a54) \
LS_5 (M, 1, a60, a61, a62, a63, a64) \
LS_5 (M, 2, a70, a71, a72, a73, a74) \
LS_5 (M, 3, a80, a81, a82, a83, a84) \
LS_5 (M, 4, a90, a91, a92, a93, a94) \
#define XOR_1(i, a0) \
a0 ^= GetUi64(data + (i) * 8); \
#define XOR_4(i, a0,a1,a2,a3) \
XOR_1 ((i) , a0); \
XOR_1 ((i) + 1, a1); \
XOR_1 ((i) + 2, a2); \
XOR_1 ((i) + 3, a3); \
#define D(d,b1,b2) \
d = b1 ^ Z7_ROTL64(b2, 1);
#define D5 \
D (d0, c4, c1) \
D (d1, c0, c2) \
D (d2, c1, c3) \
D (d3, c2, c4) \
D (d4, c3, c0) \
#define C0(c,a,d) \
c = a ^ d; \
#define C(c,a,d,k) \
c = a ^ d; \
c = Z7_ROTL64(c, k); \
#define E4(e1,e2,e3,e4) \
e1 = c1 ^ (~c2 & c3); \
e2 = c2 ^ (~c3 & c4); \
e3 = c3 ^ (~c4 & c0); \
e4 = c4 ^ (~c0 & c1); \
#define CK( v0,w0, \
v1,w1,k1, \
v2,w2,k2, \
v3,w3,k3, \
v4,w4,k4, e0,e1,e2,e3,e4, keccak_c) \
C0(c0,v0,w0) \
C (c1,v1,w1,k1) \
C (c2,v2,w2,k2) \
C (c3,v3,w3,k3) \
C (c4,v4,w4,k4) \
e0 = c0 ^ (~c1 & c2) ^ keccak_c; \
E4(e1,e2,e3,e4) \
#define CE( v0,w0,k0, \
v1,w1,k1, \
v2,w2,k2, \
v3,w3,k3, \
v4,w4,k4, e0,e1,e2,e3,e4) \
C (c0,v0,w0,k0) \
C (c1,v1,w1,k1) \
C (c2,v2,w2,k2) \
C (c3,v3,w3,k3) \
C (c4,v4,w4,k4) \
e0 = c0 ^ (~c1 & c2); \
E4(e1,e2,e3,e4) \
// numBlocks != 0
static
Z7_NO_INLINE
void Z7_FASTCALL Sha3_UpdateBlocks(UInt64 state[SHA3_NUM_STATE_WORDS],
const Byte *data, size_t numBlocks, size_t blockSize)
{
LS_25 (GET_state)
do
{
unsigned round;
XOR_4 ( 0, a50, a51, a52, a53)
XOR_4 ( 4, a54, a60, a61, a62)
XOR_1 ( 8, a63)
if (blockSize > 8 * 9) { XOR_4 ( 9, a64, a70, a71, a72) // sha3-384
if (blockSize > 8 * 13) { XOR_4 (13, a73, a74, a80, a81) // sha3-256
if (blockSize > 8 * 17) { XOR_1 (17, a82) // sha3-224
if (blockSize > 8 * 18) { XOR_1 (18, a83) // shake128
XOR_1 (19, a84)
XOR_1 (20, a90) }}}}
data += blockSize;
for (round = 0; round < 24; round += 2)
{
UInt64 c0, c1, c2, c3, c4;
UInt64 d0, d1, d2, d3, d4;
UInt64 e50, e51, e52, e53, e54;
UInt64 e60, e61, e62, e63, e64;
UInt64 e70, e71, e72, e73, e74;
UInt64 e80, e81, e82, e83, e84;
UInt64 e90, e91, e92, e93, e94;
c0 = a50^a60^a70^a80^a90;
c1 = a51^a61^a71^a81^a91;
c2 = a52^a62^a72^a82^a92;
c3 = a53^a63^a73^a83^a93;
c4 = a54^a64^a74^a84^a94;
D5
CK( a50, d0,
a61, d1, 44,
a72, d2, 43,
a83, d3, 21,
a94, d4, 14, e50, e51, e52, e53, e54, SHA3_K_ARRAY[round])
CE( a53, d3, 28,
a64, d4, 20,
a70, d0, 3,
a81, d1, 45,
a92, d2, 61, e60, e61, e62, e63, e64)
CE( a51, d1, 1,
a62, d2, 6,
a73, d3, 25,
a84, d4, 8,
a90, d0, 18, e70, e71, e72, e73, e74)
CE( a54, d4, 27,
a60, d0, 36,
a71, d1, 10,
a82, d2, 15,
a93, d3, 56, e80, e81, e82, e83, e84)
CE( a52, d2, 62,
a63, d3, 55,
a74, d4, 39,
a80, d0, 41,
a91, d1, 2, e90, e91, e92, e93, e94)
// ---------- ROUND + 1 ----------
c0 = e50^e60^e70^e80^e90;
c1 = e51^e61^e71^e81^e91;
c2 = e52^e62^e72^e82^e92;
c3 = e53^e63^e73^e83^e93;
c4 = e54^e64^e74^e84^e94;
D5
CK( e50, d0,
e61, d1, 44,
e72, d2, 43,
e83, d3, 21,
e94, d4, 14, a50, a51, a52, a53, a54, SHA3_K_ARRAY[(size_t)round + 1])
CE( e53, d3, 28,
e64, d4, 20,
e70, d0, 3,
e81, d1, 45,
e92, d2, 61, a60, a61, a62, a63, a64)
CE( e51, d1, 1,
e62, d2, 6,
e73, d3, 25,
e84, d4, 8,
e90, d0, 18, a70, a71, a72, a73, a74)
CE (e54, d4, 27,
e60, d0, 36,
e71, d1, 10,
e82, d2, 15,
e93, d3, 56, a80, a81, a82, a83, a84)
CE (e52, d2, 62,
e63, d3, 55,
e74, d4, 39,
e80, d0, 41,
e91, d1, 2, a90, a91, a92, a93, a94)
}
}
while (--numBlocks);
LS_25 (SET_state)
}
#define Sha3_UpdateBlock(p) \
Sha3_UpdateBlocks(p->state, p->buffer, 1, p->blockSize)
void Sha3_Update(CSha3 *p, const Byte *data, size_t size)
{
/*
for (;;)
{
if (size == 0)
return;
unsigned cur = p->blockSize - p->count;
if (cur > size)
cur = (unsigned)size;
size -= cur;
unsigned pos = p->count;
p->count = pos + cur;
while (pos & 7)
{
if (cur == 0)
return;
Byte *pb = &(((Byte *)p->state)[pos]);
*pb = (Byte)(*pb ^ *data++);
cur--;
pos++;
}
if (cur >= 8)
{
do
{
*(UInt64 *)(void *)&(((Byte *)p->state)[pos]) ^= GetUi64(data);
data += 8;
pos += 8;
cur -= 8;
}
while (cur >= 8);
}
if (pos != p->blockSize)
{
if (cur)
{
Byte *pb = &(((Byte *)p->state)[pos]);
do
{
*pb = (Byte)(*pb ^ *data++);
pb++;
}
while (--cur);
}
return;
}
Sha3_UpdateBlock(p->state);
p->count = 0;
}
*/
if (size == 0)
return;
{
const unsigned pos = p->count;
const unsigned num = p->blockSize - pos;
if (num > size)
{
p->count = pos + (unsigned)size;
memcpy(p->buffer + pos, data, size);
return;
}
if (pos != 0)
{
size -= num;
memcpy(p->buffer + pos, data, num);
data += num;
Sha3_UpdateBlock(p);
}
}
if (size >= p->blockSize)
{
const size_t numBlocks = size / p->blockSize;
const Byte *dataOld = data;
data += numBlocks * p->blockSize;
size = (size_t)(dataOld + size - data);
Sha3_UpdateBlocks(p->state, dataOld, numBlocks, p->blockSize);
}
p->count = (unsigned)size;
if (size)
memcpy(p->buffer, data, size);
}
// we support only (digestSize % 4 == 0) cases
void Sha3_Final(CSha3 *p, Byte *digest, unsigned digestSize, unsigned shake)
{
memset(p->buffer + p->count, 0, p->blockSize - p->count);
// we write bits markers from low to higher in current byte:
// - if sha-3 : 2 bits : 0,1
// - if shake : 4 bits : 1111
// then we write bit 1 to same byte.
// And we write bit 1 to highest bit of last byte of block.
p->buffer[p->count] = (Byte)(shake ? 0x1f : 0x06);
// we need xor operation (^= 0x80) here because we must write 0x80 bit
// to same byte as (0x1f : 0x06), if (p->count == p->blockSize - 1) !!!
p->buffer[p->blockSize - 1] ^= 0x80;
/*
((Byte *)p->state)[p->count] ^= (Byte)(shake ? 0x1f : 0x06);
((Byte *)p->state)[p->blockSize - 1] ^= 0x80;
*/
Sha3_UpdateBlock(p);
#if 1 && defined(MY_CPU_LE)
memcpy(digest, p->state, digestSize);
#else
{
const unsigned numWords = digestSize >> 3;
unsigned i;
for (i = 0; i < numWords; i++)
{
const UInt64 v = p->state[i];
SetUi64(digest, v)
digest += 8;
}
if (digestSize & 4) // for SHA3-224
{
const UInt32 v = (UInt32)p->state[numWords];
SetUi32(digest, v)
}
}
#endif
Sha3_Init(p);
}
#undef GET_state
#undef SET_state
#undef LS_5
#undef LS_25
#undef XOR_1
#undef XOR_4
#undef D
#undef D5
#undef C0
#undef C
#undef E4
#undef CK
#undef CE