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Merge pull request #220 

9b3673a added portable slow-hash, updated makefile targets, fixed readme (Riccardo Spagni)
This commit is contained in:
Riccardo Spagni 2015-01-27 09:44:17 +02:00
parent de8a1291ce 9b3673a54c
commit bd143e0c2f
No known key found for this signature in database
GPG Key ID: 55432DF31CCD4FCD
3 changed files with 166 additions and 16 deletions
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16
Makefile
View File

@ -1,17 +1,17 @@
all: all-release
all: release-all
cmake-debug:
mkdir -p build/debug
cd build/debug && cmake -D CMAKE_BUILD_TYPE=Debug ../..
build-debug: cmake-debug
debug: cmake-debug
cd build/debug && $(MAKE)
test-debug: build-debug
debug-test: debug
mkdir -p build/debug
cd build/debug && cmake -D BUILD_TESTS=ON -D CMAKE_BUILD_TYPE=Debug ../.. && $(MAKE) test
all-debug:
debug-all:
mkdir -p build/debug
cd build/debug && cmake -D BUILD_TESTS=ON -D CMAKE_BUILD_TYPE=Debug ../.. && $(MAKE)
@ -19,14 +19,14 @@ cmake-release:
mkdir -p build/release
cd build/release && cmake -D CMAKE_BUILD_TYPE=Release ../..
build-release: cmake-release
release: cmake-release
cd build/release && $(MAKE)
test-release: build-release
release-test: release
mkdir -p build/release
cd build/release && cmake -D BUILD_TESTS=ON -D CMAKE_BUILD_TYPE=release ../.. && $(MAKE) test
all-release:
release-all:
mkdir -p build/release
cd build/release && cmake -D BUILD_TESTS=ON -D CMAKE_BUILD_TYPE=release ../.. && $(MAKE)
@ -43,4 +43,4 @@ clean:
tags:
ctags -R --sort=1 --c++-kinds=+p --fields=+iaS --extra=+q --language-force=C++ src contrib tests/gtest
.PHONY: all cmake-debug build-debug test-debug all-debug cmake-release build-release test-release all-release clean tags
.PHONY: all cmake-debug debug debug-test debug-all cmake-release release release-test release-all clean tags

12
README.md
View File

@ -56,14 +56,14 @@ Static Build Additional Dependencies: ldns 1.6.17 or later, expat 1.1 or later,
**Basic Process:**
* To build, change to the root of the source code directory, and run `make`.
* The resulting executables can be found in `build/release/src` or `build/debug/src`, depending on what you're building.
* The resulting executables can be found in `build/release/bin` or `build/debug/bin`, depending on what you're building.
**Advanced options:**
* Parallel build: run `make -j<number of threads>` instead of `make`.
* Statically linked release build: run `make release-static`.
* Debug build: run `make build-debug`.
* Test suite: run `make test-release` to run tests in addition to building. Running `make test-debug` will do the same to the debug version.
* Debug build: run `make debug`.
* Test suite: run `make release-test` to run tests in addition to building. Running `make debug-test` will do the same to the debug version.
* Building with Clang: it may be possible to use Clang instead of GCC, but this may not work everywhere. To build, run `export CC=clang CXX=clang++` before running `make`.
### On OS X:
@ -111,7 +111,7 @@ cmake -G "MSYS Makefiles" -D CMAKE_BUILD_TYPE=Release -D CMAKE_TOOLCHAIN_FILE=..
cmake -G "MSYS Makefiles" -D CMAKE_BUILD_TYPE=Release -D CMAKE_TOOLCHAIN_FILE=../cmake/32-bit-toolchain.cmake -D MSYS2_FOLDER=c:/msys32 ..
```
* You can now run `make` to have it build
* The resulting executables can be found in `build/release/src` or `build/debug/src`, depending on what you're building.
* The resulting executables can be found in `build/release/bin` or `build/debug/bin`, depending on what you're building.
If you installed MSYS2 in a folder other than c:/msys64, make the appropriate substitution above.
@ -119,8 +119,8 @@ If you installed MSYS2 in a folder other than c:/msys64, make the appropriate su
* Parallel build: run `make -j<number of threads>` instead of `make`.
* Statically linked release build: run `make release-static`.
* Debug build: run `make build-debug`.
* Test suite: run `make test-release` to run tests in addition to building. Running `make test-debug` will do the same to the debug version.
* Debug build: run `make debug`.
* Test suite: run `make release-test` to run tests in addition to building. Running `make debug-test` will do the same to the debug version.
### On FreeBSD:

154
src/crypto/slow-hash.c
View File

@ -37,9 +37,11 @@
#include "hash-ops.h"
#include "oaes_lib.h"
#ifdef __SSE2__
#if defined(__x86_64__) || defined(__i386)
// Optimised code below, uses x86-specific intrinsics, SSE2, AES-NI
// Fall back to more portable code is down at the bottom
#include <emmintrin.h>
#endif
#if defined(_MSC_VER)
#include <intrin.h>
@ -621,3 +623,151 @@ void cn_slow_hash(const void *data, size_t length, char *hash)
hash_permutation(&state.hs);
extra_hashes[state.hs.b[0] & 3](&state, 200, hash);
}
#else
// Portable implementation as a fallback
static void (*const extra_hashes[4])(const void *, size_t, char *) = {
hash_extra_blake, hash_extra_groestl, hash_extra_jh, hash_extra_skein
};
#define MEMORY (1 << 21) /* 2 MiB */
#define ITER (1 << 20)
#define AES_BLOCK_SIZE 16
#define AES_KEY_SIZE 32 /*16*/
#define INIT_SIZE_BLK 8
#define INIT_SIZE_BYTE (INIT_SIZE_BLK * AES_BLOCK_SIZE)
extern int aesb_single_round(const uint8_t *in, uint8_t*out, const uint8_t *expandedKey);
extern int aesb_pseudo_round(const uint8_t *in, uint8_t *out, const uint8_t *expandedKey);
static size_t e2i(const uint8_t* a, size_t count) { return (*((uint64_t*)a) / AES_BLOCK_SIZE) & (count - 1); }
static void mul(const uint8_t* a, const uint8_t* b, uint8_t* res) {
uint64_t a0, b0;
uint64_t hi, lo;
a0 = SWAP64LE(((uint64_t*)a)[0]);
b0 = SWAP64LE(((uint64_t*)b)[0]);
lo = mul128(a0, b0, &hi);
((uint64_t*)res)[0] = SWAP64LE(hi);
((uint64_t*)res)[1] = SWAP64LE(lo);
}
static void sum_half_blocks(uint8_t* a, const uint8_t* b) {
uint64_t a0, a1, b0, b1;
a0 = SWAP64LE(((uint64_t*)a)[0]);
a1 = SWAP64LE(((uint64_t*)a)[1]);
b0 = SWAP64LE(((uint64_t*)b)[0]);
b1 = SWAP64LE(((uint64_t*)b)[1]);
a0 += b0;
a1 += b1;
((uint64_t*)a)[0] = SWAP64LE(a0);
((uint64_t*)a)[1] = SWAP64LE(a1);
}
#define U64(x) ((uint64_t *) (x))
static void copy_block(uint8_t* dst, const uint8_t* src) {
memcpy(dst, src, AES_BLOCK_SIZE);
}
static void swap_blocks(uint8_t *a, uint8_t *b){
uint64_t t[2];
U64(t)[0] = U64(a)[0];
U64(t)[1] = U64(a)[1];
U64(a)[0] = U64(b)[0];
U64(a)[1] = U64(b)[1];
U64(b)[0] = U64(t)[0];
U64(b)[1] = U64(t)[1];
}
static void xor_blocks(uint8_t* a, const uint8_t* b) {
size_t i;
for (i = 0; i < AES_BLOCK_SIZE; i++) {
a[i] ^= b[i];
}
}
#pragma pack(push, 1)
union cn_slow_hash_state {
union hash_state hs;
struct {
uint8_t k[64];
uint8_t init[INIT_SIZE_BYTE];
};
};
#pragma pack(pop)
void cn_slow_hash(const void *data, size_t length, char *hash) {
uint8_t long_state[MEMORY];
union cn_slow_hash_state state;
uint8_t text[INIT_SIZE_BYTE];
uint8_t a[AES_BLOCK_SIZE];
uint8_t b[AES_BLOCK_SIZE];
uint8_t c[AES_BLOCK_SIZE];
uint8_t d[AES_BLOCK_SIZE];
size_t i, j;
uint8_t aes_key[AES_KEY_SIZE];
oaes_ctx *aes_ctx;
hash_process(&state.hs, data, length);
memcpy(text, state.init, INIT_SIZE_BYTE);
memcpy(aes_key, state.hs.b, AES_KEY_SIZE);
aes_ctx = (oaes_ctx *) oaes_alloc();
oaes_key_import_data(aes_ctx, aes_key, AES_KEY_SIZE);
for (i = 0; i < MEMORY / INIT_SIZE_BYTE; i++) {
for (j = 0; j < INIT_SIZE_BLK; j++) {
aesb_pseudo_round(&text[AES_BLOCK_SIZE * j], &text[AES_BLOCK_SIZE * j], aes_ctx->key->exp_data);
}
memcpy(&long_state[i * INIT_SIZE_BYTE], text, INIT_SIZE_BYTE);
}
for (i = 0; i < 16; i++) {
a[i] = state.k[ i] ^ state.k[32 + i];
b[i] = state.k[16 + i] ^ state.k[48 + i];
}
for (i = 0; i < ITER / 2; i++) {
/* Dependency chain: address -> read value ------+
* written value <-+ hard function (AES or MUL) <+
* next address <-+
*/
/* Iteration 1 */
j = e2i(a, MEMORY / AES_BLOCK_SIZE);
copy_block(c, &long_state[j * AES_BLOCK_SIZE]);
aesb_single_round(c, c, a);
xor_blocks(b, c);
swap_blocks(b, c);
copy_block(&long_state[j * AES_BLOCK_SIZE], c);
assert(j == e2i(a, MEMORY / AES_BLOCK_SIZE));
swap_blocks(a, b);
/* Iteration 2 */
j = e2i(a, MEMORY / AES_BLOCK_SIZE);
copy_block(c, &long_state[j * AES_BLOCK_SIZE]);
mul(a, c, d);
sum_half_blocks(b, d);
swap_blocks(b, c);
xor_blocks(b, c);
copy_block(&long_state[j * AES_BLOCK_SIZE], c);
assert(j == e2i(a, MEMORY / AES_BLOCK_SIZE));
swap_blocks(a, b);
}
memcpy(text, state.init, INIT_SIZE_BYTE);
oaes_key_import_data(aes_ctx, &state.hs.b[32], AES_KEY_SIZE);
for (i = 0; i < MEMORY / INIT_SIZE_BYTE; i++) {
for (j = 0; j < INIT_SIZE_BLK; j++) {
xor_blocks(&text[j * AES_BLOCK_SIZE], &long_state[i * INIT_SIZE_BYTE + j * AES_BLOCK_SIZE]);
aesb_pseudo_round(&text[AES_BLOCK_SIZE * j], &text[AES_BLOCK_SIZE * j], aes_ctx->key->exp_data);
}
}
memcpy(state.init, text, INIT_SIZE_BYTE);
hash_permutation(&state.hs);
/*memcpy(hash, &state, 32);*/
extra_hashes[state.hs.b[0] & 3](&state, 200, hash);
oaes_free((OAES_CTX **) &aes_ctx);
}
#endif