From 1042762dc48be7beebf62476acc33962e1432d3f Mon Sep 17 00:00:00 2001
From: orignal <i2porignal@yandex.ru>
Date: Mon, 17 Apr 2017 12:55:01 -0400
Subject: [PATCH] gost added

---
 Makefile.am  |  3 ++-
 gost/gost.cu | 34 ++++++++++++++++++++++++++++++++++
 miner.h      |  1 +
 util.cpp     |  3 +++
 4 files changed, 40 insertions(+), 1 deletion(-)
 create mode 100644 gost/gost.cu

diff --git a/Makefile.am b/Makefile.am
index 4ed9679..78c27a5 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -69,7 +69,8 @@ ccminer_SOURCES	= elist.h miner.h compat.h \
 			  x15/x14.cu x15/x15.cu x15/cuda_x14_shabal512.cu x15/cuda_x15_whirlpool.cu \
 			  x15/whirlpool.cu x15/cuda_x15_whirlpool_sm3.cu \
 			  x17/x17.cu x17/hmq17.cu x17/cuda_x17_haval256.cu x17/cuda_x17_sha512.cu \
-			  x11/c11.cu x11/s3.cu x11/sib.cu x11/veltor.cu x11/cuda_streebog.cu
+			  x11/c11.cu x11/s3.cu x11/sib.cu x11/veltor.cu x11/cuda_streebog.cu \
+			  gost/gost.cu
 
 # scrypt
 ccminer_SOURCES += scrypt.cpp scrypt-jane.cpp \
diff --git a/gost/gost.cu b/gost/gost.cu
new file mode 100644
index 0000000..65bea9f
--- /dev/null
+++ b/gost/gost.cu
@@ -0,0 +1,34 @@
+extern "C" {
+#include "sph/sph_streebog.h"
+}
+
+#include "miner.h"
+#include "cuda_helper.h"
+
+#include <stdio.h>
+#include <memory.h>
+
+#define NBN 2
+static uint32_t *d_hash[MAX_GPUS];
+static uint32_t *d_resNonce[MAX_GPUS];
+static uint32_t *h_resNonce[MAX_GPUS];
+
+// GOST CPU Hash
+extern "C" void gosthash(void *output, const void *input)
+{
+	unsigned char _ALIGN(128) hash[128] = { 0 };
+
+	sph_gost512_context ctx_gost1;
+	sph_gost256_context ctx_gost2;	
+
+	sph_gost512_init(&ctx_gost1);
+	sph_gost512(&ctx_gost1, (const void*) input, 80);
+	sph_gost512_close(&ctx_gost1, (void*) hash);
+
+	sph_gost256_init(&ctx_gost2);
+	sph_gost256(&ctx_gost2, (const void*)hash, 64);
+	sph_gost256_close(&ctx_gost1, (void*) hash);
+
+	memcpy(output, hash, 32);
+}
+
diff --git a/miner.h b/miner.h
index c4c739f..2f5c812 100644
--- a/miner.h
+++ b/miner.h
@@ -883,6 +883,7 @@ void scryptjane_hash(void* output, const void* input);
 void sha256d_hash(void *output, const void *input);
 void sha256t_hash(void *output, const void *input);
 void sibhash(void *output, const void *input);
+void gosthash(void *output, const void *input);
 void skeincoinhash(void *output, const void *input);
 void skein2hash(void *output, const void *input);
 void s3hash(void *output, const void *input);
diff --git a/util.cpp b/util.cpp
index a01bf30..10b8d92 100644
--- a/util.cpp
+++ b/util.cpp
@@ -2240,6 +2240,9 @@ void print_hash_tests(void)
 	sibhash(&hash[0], &buf[0]);
 	printpfx("sib", hash);
 
+	gosthash(&hash[0], &buf[0]);
+	printpfx("gost", hash);
+
 	skeincoinhash(&hash[0], &buf[0]);
 	printpfx("skein", hash);