Signatum skunk algo

Signed-off-by: Tanguy Pruvot <tanguy.pruvot@gmail.com>

stratum/algos/makefile

@@ -18,7 +18,7 @@ SOURCES=lyra2re.c lyra2v2.c Lyra2.c lyra2z.c Lyra2z.c Sponge.c \
 	m7m.c magimath.cpp velvet.c \
 	argon2a.c ar2/blake2b.c ar2/argon2.c ar2/ref.c ar2/cores.c ar2/ar2-scrypt-jane.c \
 	hive.c pomelo.c \
-	sib.c veltor.c gost.c x11evo.c
+	skunk.c sib.c veltor.c gost.c x11evo.c
 
 OBJECTS=$(SOURCES:%.c=%.o) $(SOURCES:%.cpp=%.o)
 OUTPUT=libalgos.a

stratum/algos/skunk.c

@@ -0,0 +1,40 @@
+#include <stdlib.h>
+#include <stdint.h>
+#include <string.h>
+#include <stdio.h>
+
+#include <sha3/sph_skein.h>
+#include <sha3/sph_cubehash.h>
+#include <sha3/sph_fugue.h>
+#include "gost.h"
+
+#include "common.h"
+
+void skunk_hash(const char *input, char* output, uint32_t len)
+{
+	uint32_t _ALIGN(64) hash[16];
+
+	sph_skein512_context ctx_skein;
+	sph_cubehash512_context ctx_cube;
+	sph_fugue512_context ctx_fugue;
+	sph_gost512_context ctx_gost;
+
+	sph_skein512_init(&ctx_skein);
+	sph_skein512(&ctx_skein, input, 80);
+	sph_skein512_close(&ctx_skein, (void*) hash);
+
+	sph_cubehash512_init(&ctx_cube);
+	sph_cubehash512(&ctx_cube, hash, 64);
+	sph_cubehash512_close(&ctx_cube, hash);
+
+	sph_fugue512_init (&ctx_fugue);
+	sph_fugue512(&ctx_fugue, hash, 64);
+	sph_fugue512_close(&ctx_fugue, hash);
+
+	sph_gost512_init(&ctx_gost);
+	sph_gost512(&ctx_gost, (const void*) hash, 64);
+	sph_gost512_close(&ctx_gost, (void*) hash);
+
+	memcpy(output, hash, 32);
+}
+

stratum/algos/skunk.h

@@ -0,0 +1,16 @@
+#ifndef SKUNK_H
+#define SKUNK_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <stdint.h>
+
+void skunk_hash(const char* input, char* output, uint32_t len);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif

stratum/stratum.cpp

@@ -134,6 +134,7 @@ YAAMP_ALGO g_algos[] =
 	{"skein", skein_hash, 1, 0, 0},
 	{"tribus", tribus_hash, 1, 0, 0},
 	{"keccak", keccak256_hash, 0x80, 0, sha256_hash_hex },
+	{"skunk", skunk_hash, 1, 0, 0},
 
 	{"bmw", bmw_hash, 1, 0, 0},
 	{"lbry", lbry_hash, 0x100, 0, 0},

stratum/stratum.h

@@ -154,6 +154,7 @@ void sha256_double_hash_hex(const char *input, char *output, unsigned int len);
 #include "algos/skein.h"
 #include "algos/keccak.h"
 #include "algos/sha256t.h"
+#include "algos/skunk.h"
 #include "algos/timetravel.h"
 #include "algos/bitcore.h"
 

web/yaamp/core/functions/yaamp.php

@@ -44,6 +44,7 @@ function yaamp_get_algos()
 		'sib',
 		'skein',
 		'skein2',
+		'skunk',
 		'timetravel',
 		'tribus',
 		'vanilla',
@@ -153,6 +154,7 @@ function getAlgoColors($algo)
 		'skein2'	=> '#c8a060',
 		'timetravel'	=> '#f0b0d0',
 		'bitcore'	=> '#f790c0',
+		'skunk'		=> '#051313',
 		'tribus'	=> '#c0d0d0',
 		'vanilla'	=> '#f0f0f0',
 		'velvet'	=> '#aac0cc',
@@ -222,6 +224,7 @@ function getAlgoPort($algo)
 		'velvet'	=> 6133,
 		'yescrypt'	=> 6233,
 		'bastion'	=> 6433,
+		'skunk'		=> 8433,
 		'tribus'	=> 8533,
 	);