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Add Flex Algorithm
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xiaolin1579 committed Jun 7, 2024
1 parent 5504c82 commit d3dd432
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22 changes: 22 additions & 0 deletions src/Miningcore/Crypto/Hashing/Algorithms/Flex.cs
Original file line number Diff line number Diff line change
@@ -0,0 +1,22 @@
using Miningcore.Contracts;
using Miningcore.Native;

namespace Miningcore.Crypto.Hashing.Algorithms;

[Identifier("flex")]

public unsafe class Flex : IHashAlgorithm
{
public void Digest(ReadOnlySpan<byte> data, Span<byte> result, params object[] extra)
{
Contract.Requires<ArgumentException>(result.Length >= 32);

fixed (byte* input = data)
{
fixed (byte* output = result)
{
Multihash.flex(input, output, (uint) data.Length);
}
}
}
}
3 changes: 3 additions & 0 deletions src/Miningcore/Native/Multihash.cs
Original file line number Diff line number Diff line change
Expand Up @@ -220,4 +220,7 @@ public static unsafe class Multihash
[DllImport("libmultihash", EntryPoint = "x11gost_export", CallingConvention = CallingConvention.Cdecl)]
public static extern void x11gost(byte* input, void* output, uint inputLength);

[DllImport("libmultihash", EntryPoint = "flex_export", CallingConvention = CallingConvention.Cdecl)]
public static extern void flex(byte* input, void* output, uint inputLength);

}
8 changes: 5 additions & 3 deletions src/Native/libmultihash/Makefile
Original file line number Diff line number Diff line change
Expand Up @@ -4,11 +4,11 @@ LDFLAGS = -shared
LDLIBS = -lsodium
TARGET = libmultihash.so

OBJECTS = allium.o aurum.o bcrypt.o blake.o c11.o dcrypt.o fresh.o lane.o \
fugue.o groestl.o hefty1.o jh.o keccak.o neoscrypt.o exports.o nist5.o quark.o qubit.o s3.o scryptn.o \
OBJECTS = allium.o aurum.o bcrypt.o blake.o c11.o dcrypt.o fresh.o lane.o flex.o \
fugue.o groestl.o hefty1.o jha.o keccak.o neoscrypt.o exports.o nist5.o quark.o qubit.o s3.o scryptn.o \
sha256csm.o sha256-d.o hmq17.o phi.o \
sha3/aes_helper.o sha3/hamsi.o sha3/hamsi_helper.o sha3/sph_blake.o sha3/sph_bmw.o sha3/sph_cubehash.o \
sha3/sph_echo.o sha3/sph_fugue.o sha3/sph_groestl.o sha3/sph_hefty1.o sha3/sph_jh.o sha3/sph_keccak.o \
sha3/sph_echo.o sha3/sph_fugue.o sha3/sph_groestl.o sha3/sph_hefty1.o sha3/sph_jh.o sha3/sph_keccak.o sha3/flex_keccak.o \
sha3/sph_luffa.o sha3/sph_shabal.o sha3/sph_shavite.o sha3/sph_simd.o sha3/sph_skein.o sha3/sph_whirlpool.o \
sha3/sph_haval.o sha3/sph_sha2.o sha3/sph_sha2big.o sha3/sm3.o sha3/panama.o sha3/sph_radiogatun.o \
sha3/extra.o sha3/gost_streebog.o sha3/sph_tiger.o sha3/SWIFFTX.o KeccakP-800-reference.o \
Expand All @@ -19,6 +19,8 @@ OBJECTS = allium.o aurum.o bcrypt.o blake.o c11.o dcrypt.o fresh.o lane.o \
Lyra2.o Lyra2RE.o Sponge.o geek.o minotaurx.o memehash.o rwahash.o \
heavyhash/heavyhash.o heavyhash/keccak_tiny.o \
verthash/tiny_sha3/sha3.o verthash/h2.o \
cryptonote/cryptonight.o cryptonote/cryptonight_dark.o cryptonote/cryptonight_dark_lite.o cryptonote/cryptonight_fast.o cryptonote/cryptonight_lite.o cryptonote/cryptonight_soft_shell.o cryptonote/cryptonight_turtle.o cryptonote/cryptonight_turtle_lite.o \
cryptonote/crypto/aesb.o cryptonote/crypto/c_blake256.o cryptonote/crypto/c_groestl.o cryptonote/crypto/c_jh.o cryptonote/crypto/c_keccak.o cryptonote/crypto/c_skein.o cryptonote/crypto/hash.o cryptonote/crypto/oaes_lib.o cryptonote/crypto/wild_keccak.o \
equi/util.o equi/support/cleanse.o equi/random.o \
equi/uint256.o equi/arith_uint256.o equi/crypto/hmac_sha512.o \
equi/crypto/sha1.o equi/crypto/sha512.o equi/crypto/sha256.o \
Expand Down
177 changes: 177 additions & 0 deletions src/Native/libmultihash/cryptonote/crypto/aesb.c
Original file line number Diff line number Diff line change
@@ -0,0 +1,177 @@
/*
---------------------------------------------------------------------------
Copyright (c) 1998-2013, Brian Gladman, Worcester, UK. All rights reserved.
The redistribution and use of this software (with or without changes)
is allowed without the payment of fees or royalties provided that:
source code distributions include the above copyright notice, this
list of conditions and the following disclaimer;
binary distributions include the above copyright notice, this list
of conditions and the following disclaimer in their documentation.
This software is provided 'as is' with no explicit or implied warranties
in respect of its operation, including, but not limited to, correctness
and fitness for purpose.
---------------------------------------------------------------------------
Issue Date: 20/12/2007
*/

#include <stdint.h>

#if defined(__cplusplus)
extern "C"
{
#endif

#define TABLE_ALIGN 32
#define WPOLY 0x011b
#define N_COLS 4
#define AES_BLOCK_SIZE 16
#define RC_LENGTH (5 * (AES_BLOCK_SIZE / 4 - 2))

#if defined(_MSC_VER)
#define ALIGN __declspec(align(TABLE_ALIGN))
#elif defined(__GNUC__)
#define ALIGN __attribute__ ((aligned(16)))
#else
#define ALIGN
#endif

#define rf1(r,c) (r)
#define word_in(x,c) (*((uint32_t*)(x)+(c)))
#define word_out(x,c,v) (*((uint32_t*)(x)+(c)) = (v))

#define s(x,c) x[c]
#define si(y,x,c) (s(y,c) = word_in(x, c))
#define so(y,x,c) word_out(y, c, s(x,c))
#define state_in(y,x) si(y,x,0); si(y,x,1); si(y,x,2); si(y,x,3)
#define state_out(y,x) so(y,x,0); so(y,x,1); so(y,x,2); so(y,x,3)
#define round(rm,y,x,k) rm(y,x,k,0); rm(y,x,k,1); rm(y,x,k,2); rm(y,x,k,3)
#define to_byte(x) ((x) & 0xff)
#define bval(x,n) to_byte((x) >> (8 * (n)))

#define fwd_var(x,r,c)\
( r == 0 ? ( c == 0 ? s(x,0) : c == 1 ? s(x,1) : c == 2 ? s(x,2) : s(x,3))\
: r == 1 ? ( c == 0 ? s(x,1) : c == 1 ? s(x,2) : c == 2 ? s(x,3) : s(x,0))\
: r == 2 ? ( c == 0 ? s(x,2) : c == 1 ? s(x,3) : c == 2 ? s(x,0) : s(x,1))\
: ( c == 0 ? s(x,3) : c == 1 ? s(x,0) : c == 2 ? s(x,1) : s(x,2)))

#define fwd_rnd(y,x,k,c) (s(y,c) = (k)[c] ^ four_tables(x,t_use(f,n),fwd_var,rf1,c))

#define sb_data(w) {\
w(0x63), w(0x7c), w(0x77), w(0x7b), w(0xf2), w(0x6b), w(0x6f), w(0xc5),\
w(0x30), w(0x01), w(0x67), w(0x2b), w(0xfe), w(0xd7), w(0xab), w(0x76),\
w(0xca), w(0x82), w(0xc9), w(0x7d), w(0xfa), w(0x59), w(0x47), w(0xf0),\
w(0xad), w(0xd4), w(0xa2), w(0xaf), w(0x9c), w(0xa4), w(0x72), w(0xc0),\
w(0xb7), w(0xfd), w(0x93), w(0x26), w(0x36), w(0x3f), w(0xf7), w(0xcc),\
w(0x34), w(0xa5), w(0xe5), w(0xf1), w(0x71), w(0xd8), w(0x31), w(0x15),\
w(0x04), w(0xc7), w(0x23), w(0xc3), w(0x18), w(0x96), w(0x05), w(0x9a),\
w(0x07), w(0x12), w(0x80), w(0xe2), w(0xeb), w(0x27), w(0xb2), w(0x75),\
w(0x09), w(0x83), w(0x2c), w(0x1a), w(0x1b), w(0x6e), w(0x5a), w(0xa0),\
w(0x52), w(0x3b), w(0xd6), w(0xb3), w(0x29), w(0xe3), w(0x2f), w(0x84),\
w(0x53), w(0xd1), w(0x00), w(0xed), w(0x20), w(0xfc), w(0xb1), w(0x5b),\
w(0x6a), w(0xcb), w(0xbe), w(0x39), w(0x4a), w(0x4c), w(0x58), w(0xcf),\
w(0xd0), w(0xef), w(0xaa), w(0xfb), w(0x43), w(0x4d), w(0x33), w(0x85),\
w(0x45), w(0xf9), w(0x02), w(0x7f), w(0x50), w(0x3c), w(0x9f), w(0xa8),\
w(0x51), w(0xa3), w(0x40), w(0x8f), w(0x92), w(0x9d), w(0x38), w(0xf5),\
w(0xbc), w(0xb6), w(0xda), w(0x21), w(0x10), w(0xff), w(0xf3), w(0xd2),\
w(0xcd), w(0x0c), w(0x13), w(0xec), w(0x5f), w(0x97), w(0x44), w(0x17),\
w(0xc4), w(0xa7), w(0x7e), w(0x3d), w(0x64), w(0x5d), w(0x19), w(0x73),\
w(0x60), w(0x81), w(0x4f), w(0xdc), w(0x22), w(0x2a), w(0x90), w(0x88),\
w(0x46), w(0xee), w(0xb8), w(0x14), w(0xde), w(0x5e), w(0x0b), w(0xdb),\
w(0xe0), w(0x32), w(0x3a), w(0x0a), w(0x49), w(0x06), w(0x24), w(0x5c),\
w(0xc2), w(0xd3), w(0xac), w(0x62), w(0x91), w(0x95), w(0xe4), w(0x79),\
w(0xe7), w(0xc8), w(0x37), w(0x6d), w(0x8d), w(0xd5), w(0x4e), w(0xa9),\
w(0x6c), w(0x56), w(0xf4), w(0xea), w(0x65), w(0x7a), w(0xae), w(0x08),\
w(0xba), w(0x78), w(0x25), w(0x2e), w(0x1c), w(0xa6), w(0xb4), w(0xc6),\
w(0xe8), w(0xdd), w(0x74), w(0x1f), w(0x4b), w(0xbd), w(0x8b), w(0x8a),\
w(0x70), w(0x3e), w(0xb5), w(0x66), w(0x48), w(0x03), w(0xf6), w(0x0e),\
w(0x61), w(0x35), w(0x57), w(0xb9), w(0x86), w(0xc1), w(0x1d), w(0x9e),\
w(0xe1), w(0xf8), w(0x98), w(0x11), w(0x69), w(0xd9), w(0x8e), w(0x94),\
w(0x9b), w(0x1e), w(0x87), w(0xe9), w(0xce), w(0x55), w(0x28), w(0xdf),\
w(0x8c), w(0xa1), w(0x89), w(0x0d), w(0xbf), w(0xe6), w(0x42), w(0x68),\
w(0x41), w(0x99), w(0x2d), w(0x0f), w(0xb0), w(0x54), w(0xbb), w(0x16) }

#define rc_data(w) {\
w(0x01), w(0x02), w(0x04), w(0x08), w(0x10),w(0x20), w(0x40), w(0x80),\
w(0x1b), w(0x36) }

#define bytes2word(b0, b1, b2, b3) (((uint32_t)(b3) << 24) | \
((uint32_t)(b2) << 16) | ((uint32_t)(b1) << 8) | (b0))

#define h0(x) (x)
#define w0(p) bytes2word(p, 0, 0, 0)
#define w1(p) bytes2word(0, p, 0, 0)
#define w2(p) bytes2word(0, 0, p, 0)
#define w3(p) bytes2word(0, 0, 0, p)

#define u0(p) bytes2word(f2(p), p, p, f3(p))
#define u1(p) bytes2word(f3(p), f2(p), p, p)
#define u2(p) bytes2word(p, f3(p), f2(p), p)
#define u3(p) bytes2word(p, p, f3(p), f2(p))

#define v0(p) bytes2word(fe(p), f9(p), fd(p), fb(p))
#define v1(p) bytes2word(fb(p), fe(p), f9(p), fd(p))
#define v2(p) bytes2word(fd(p), fb(p), fe(p), f9(p))
#define v3(p) bytes2word(f9(p), fd(p), fb(p), fe(p))

#define f2(x) ((x<<1) ^ (((x>>7) & 1) * WPOLY))
#define f4(x) ((x<<2) ^ (((x>>6) & 1) * WPOLY) ^ (((x>>6) & 2) * WPOLY))
#define f8(x) ((x<<3) ^ (((x>>5) & 1) * WPOLY) ^ (((x>>5) & 2) * WPOLY) ^ (((x>>5) & 4) * WPOLY))
#define f3(x) (f2(x) ^ x)
#define f9(x) (f8(x) ^ x)
#define fb(x) (f8(x) ^ f2(x) ^ x)
#define fd(x) (f8(x) ^ f4(x) ^ x)
#define fe(x) (f8(x) ^ f4(x) ^ f2(x))

#define t_dec(m,n) t_##m##n
#define t_set(m,n) t_##m##n
#define t_use(m,n) t_##m##n

#define d_4(t,n,b,e,f,g,h) ALIGN const t n[4][256] = { b(e), b(f), b(g), b(h) }

#define four_tables(x,tab,vf,rf,c) \
(tab[0][bval(vf(x,0,c),rf(0,c))] \
^ tab[1][bval(vf(x,1,c),rf(1,c))] \
^ tab[2][bval(vf(x,2,c),rf(2,c))] \
^ tab[3][bval(vf(x,3,c),rf(3,c))])

d_4(uint32_t, t_dec(f,n), sb_data, u0, u1, u2, u3);

void aesb_single_round(const uint8_t *in, uint8_t *out, uint8_t *expandedKey)
{
uint32_t b0[4], b1[4];
const uint32_t *kp = (uint32_t *) expandedKey;
state_in(b0, in);

round(fwd_rnd, b1, b0, kp);

state_out(out, b1);
}

void aesb_pseudo_round(const uint8_t *in, uint8_t *out, uint8_t *expandedKey)
{
uint32_t b0[4], b1[4];
const uint32_t *kp = (uint32_t *) expandedKey;
state_in(b0, in);

round(fwd_rnd, b1, b0, kp);
round(fwd_rnd, b0, b1, kp + 1 * N_COLS);
round(fwd_rnd, b1, b0, kp + 2 * N_COLS);
round(fwd_rnd, b0, b1, kp + 3 * N_COLS);
round(fwd_rnd, b1, b0, kp + 4 * N_COLS);
round(fwd_rnd, b0, b1, kp + 5 * N_COLS);
round(fwd_rnd, b1, b0, kp + 6 * N_COLS);
round(fwd_rnd, b0, b1, kp + 7 * N_COLS);
round(fwd_rnd, b1, b0, kp + 8 * N_COLS);
round(fwd_rnd, b0, b1, kp + 9 * N_COLS);

state_out(out, b0);
}


#if defined(__cplusplus)
}
#endif
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