Merge pull request #20 from cr-marcstevens/feature/performance

Feature/performance

5 files changed, 836 insertions, 188 deletions

diff --git a/Makefile b/Makefile
index 8c014e5..aa2f0c1 100644
--- a/Makefile
+++ b/Makefile
@@ -13,7 +13,7 @@
 # 3. If any interfaces have been added since the last public release, then increment age.
 # 4. If any interfaces have been removed or changed since the last public release,
 #    then set age to 0.
-LIBCOMPAT=0:0:0
+LIBCOMPAT=1:0:0
 
 PREFIX ?= /usr/local
 BINDIR=$(PREFIX)/bin
@@ -66,6 +66,7 @@ SRC_DIR=src
 SRC_DEP_DIR=dep_src
 SRC_OBJ_DIR=obj_src
 
+H_DEP:=$(shell find . -type f -name "*.h")
 FS_LIB=$(wildcard $(LIB_DIR)/*.c)
 FS_SRC=$(wildcard $(SRC_DIR)/*.c)
 FS_OBJ_LIB=$(FS_LIB:$(LIB_DIR)/%.c=$(LIB_OBJ_DIR)/%.lo)
@@ -108,6 +109,13 @@ clean:
 
 .PHONY: test
 test: tools
+	test e98a60b463a6868a6ce351ab0166c0af0c8c4721 != `bin/sha1dcsum test/sha1_reducedsha_coll.bin | cut -d' ' -f1` || (echo "\nError: Compiled for incorrect endianness" && false)
+	test a56374e1cf4c3746499bc7c0acb39498ad2ee185 = `bin/sha1dcsum test/sha1_reducedsha_coll.bin | cut -d' ' -f1`
+	test 16e96b70000dd1e7c85b8368ee197754400e58ec = `bin/sha1dcsum test/shattered-1.pdf | cut -d' ' -f1`
+	test e1761773e6a35916d99f891b77663e6405313587 = `bin/sha1dcsum test/shattered-2.pdf | cut -d' ' -f1`
+	test dd39885a2a5d8f59030b451e00cb45da9f9d3828 = `bin/sha1dcsum_partialcoll test/sha1_reducedsha_coll.bin | cut -d' ' -f1` 
+	test d3a1d09969c3b57113fd17b23e01dd3de74a99bb = `bin/sha1dcsum_partialcoll test/shattered-1.pdf | cut -d' ' -f1`
+	test 92246b0b718f4c704d37bb025717cbc66babf102 = `bin/sha1dcsum_partialcoll test/shattered-2.pdf | cut -d' ' -f1`
 	bin/sha1dcsum test/*
 	bin/sha1dcsum_partialcoll test/*
 	
@@ -143,14 +151,14 @@ bin/sha1dcsum_partialcoll: $(FS_OBJ_SRC) bin/libsha1detectcoll.$(LIB_EXT)
 $(SRC_DEP_DIR)/%.d: $(SRC_DIR)/%.c
 	$(MKDIR) $(shell dirname $@) && $(CC_DEP) $(CFLAGS) -M -MF $@ $<
 
-$(SRC_OBJ_DIR)/%.lo ${SRC_OBJ_DIR}/%.o: ${SRC_DIR}/%.c ${SRC_DEP_DIR}/%.d
+$(SRC_OBJ_DIR)/%.lo ${SRC_OBJ_DIR}/%.o: ${SRC_DIR}/%.c ${SRC_DEP_DIR}/%.d $(H_DEP)
 	$(MKDIR) $(shell dirname $@) && $(CC) $(CFLAGS) -o $@ -c $<
 
 
 $(LIB_DEP_DIR)/%.d: $(LIB_DIR)/%.c
 	$(MKDIR) $(shell dirname $@) && $(CC_DEP) $(CFLAGS) -M -MF $@ $<
 
-$(LIB_OBJ_DIR)/%.lo $(LIB_OBJ_DIR)/%.o: $(LIB_DIR)/%.c $(LIB_DEP_DIR)/%.d
+$(LIB_OBJ_DIR)/%.lo $(LIB_OBJ_DIR)/%.o: $(LIB_DIR)/%.c $(LIB_DEP_DIR)/%.d $(H_DEP)
 	$(MKDIR) $(shell dirname $@) && $(CC) $(CFLAGS) -o $@ -c $<
 
 -include $(FS_DEP)
diff --git a/lib/sha1.c b/lib/sha1.c
index 6cdbfa1..8d12b83 100644
--- a/lib/sha1.c
+++ b/lib/sha1.c
@@ -13,12 +13,43 @@
 #include "sha1.h"
 #include "ubc_check.h"
 
+
+/* 
+   Because Little-Endian architectures are most common,
+   we only set BIGENDIAN if one of these conditions is met.
+   Note that all MSFT platforms are little endian,
+   so none of these will be defined under the MSC compiler.
+   If you are compiling on a big endian platform and your compiler does not define one of these,
+   you will have to add whatever macros your tool chain defines to indicate Big-Endianness.
+ */
+#if (defined(__BYTE_ORDER) && (__BYTE_ORDER == __BIG_ENDIAN)) || \
+    (defined(__BYTE_ORDER__) && (__BYTE_ORDER__ == __BIG_ENDIAN__)) || \
+    defined(__BIG_ENDIAN__) || defined(__ARMEB__) || defined(__THUMBEB__) ||  defined(__AARCH64EB__) || \
+    defined(_MIPSEB) || defined(__MIPSEB) || defined(__MIPSEB__)
+
+#define BIGENDIAN	(1)
+
+#endif /*ENDIANNESS SELECTION*/
+
 #define rotate_right(x,n) (((x)>>(n))|((x)<<(32-(n))))
 #define rotate_left(x,n)  (((x)<<(n))|((x)>>(32-(n))))
 
+#define sha1_bswap32(x) \
+	{x = ((x << 8) & 0xFF00FF00) | ((x >> 8) & 0xFF00FF); x = (x << 16) | (x >> 16);}
+
+#define sha1_mix(W, t)  (rotate_left(W[t - 3] ^ W[t - 8] ^ W[t - 14] ^ W[t - 16], 1))
+
+#if defined(BIGENDIAN)
+	#define sha1_load(m, t, temp)  { temp = m[t]; }
+#else
+	#define sha1_load(m, t, temp)  { temp = m[t]; sha1_bswap32(temp); }
+#endif /*define(BIGENDIAN)*/
+
+#define sha1_store(W, t, x)	*(volatile uint32_t *)&W[t] = x
+
 #define sha1_f1(b,c,d) ((d)^((b)&((c)^(d))))
 #define sha1_f2(b,c,d) ((b)^(c)^(d))
-#define sha1_f3(b,c,d) (((b) & ((c)|(d))) | ((c)&(d)))
+#define sha1_f3(b,c,d) (((b)&(c))+((d)&((b)^(c))))
 #define sha1_f4(b,c,d) ((b)^(c)^(d))
 
 #define HASHCLASH_SHA1COMPRESS_ROUND1_STEP(a, b, c, d, e, m, t) \
@@ -39,18 +70,25 @@
 #define HASHCLASH_SHA1COMPRESS_ROUND4_STEP_BW(a, b, c, d, e, m, t) \
 	{ b = rotate_right(b, 30); e -= rotate_left(a, 5) + sha1_f4(b,c,d) + 0xCA62C1D6 + m[t]; }
 
-#define SHA1_STORE_STATE(i) states[i][0] = a; states[i][1] = b; states[i][2] = c; states[i][3] = d; states[i][4] = e;
+#define SHA1COMPRESS_FULL_ROUND1_STEP_LOAD(a, b, c, d, e, m, W, t, temp) \
+	{sha1_load(m, t, temp); sha1_store(W, t, temp); e += temp + rotate_left(a, 5) + sha1_f1(b,c,d) + 0x5A827999; b = rotate_left(b, 30);}
 
+#define SHA1COMPRESS_FULL_ROUND1_STEP_EXPAND(a, b, c, d, e, W, t, temp) \
+	{temp = sha1_mix(W, t); sha1_store(W, t, temp); e += temp + rotate_left(a, 5) + sha1_f1(b,c,d) + 0x5A827999; b = rotate_left(b, 30); }
 
+#define SHA1COMPRESS_FULL_ROUND2_STEP(a, b, c, d, e, W, t, temp) \
+	{temp = sha1_mix(W, t); sha1_store(W, t, temp); e += temp + rotate_left(a, 5) + sha1_f2(b,c,d) + 0x6ED9EBA1; b = rotate_left(b, 30); }
 
-static void sha1_message_expansion(uint32_t W[80])
-{
-	unsigned i;
-	for (i = 16; i < 80; ++i)
-		W[i] = rotate_left(W[i - 3] ^ W[i - 8] ^ W[i - 14] ^ W[i - 16], 1);
-}
+#define SHA1COMPRESS_FULL_ROUND3_STEP(a, b, c, d, e, W, t, temp) \
+	{temp = sha1_mix(W, t); sha1_store(W, t, temp); e += temp + rotate_left(a, 5) + sha1_f3(b,c,d) + 0x8F1BBCDC; b = rotate_left(b, 30); }
+
+#define SHA1COMPRESS_FULL_ROUND4_STEP(a, b, c, d, e, W, t, temp) \
+	{temp = sha1_mix(W, t); sha1_store(W, t, temp); e += temp + rotate_left(a, 5) + sha1_f4(b,c,d) + 0xCA62C1D6; b = rotate_left(b, 30); }
 
-/*
+
+#define SHA1_STORE_STATE(i) states[i][0] = a; states[i][1] = b; states[i][2] = c; states[i][3] = d; states[i][4] = e;
+
+#ifdef BUILDNOCOLLDETECTSHA1COMPRESSION
 void sha1_compression(uint32_t ihv[5], const uint32_t m[16])
 {
 	uint32_t W[80];
@@ -59,7 +97,7 @@ void sha1_compression(uint32_t ihv[5], const uint32_t m[16])
 
 	memcpy(W, m, 16 * 4);
 	for (i = 16; i < 80; ++i)
-		W[i] = rotate_left(W[i - 3] ^ W[i - 8] ^ W[i - 14] ^ W[i - 16], 1);
+		W[i] = sha1_mix(W, i);
 
 	a = ihv[0]; b = ihv[1]; c = ihv[2]; d = ihv[3]; e = ihv[4];
 
@@ -149,7 +187,8 @@ void sha1_compression(uint32_t ihv[5], const uint32_t m[16])
 
 	ihv[0] += a; ihv[1] += b; ihv[2] += c; ihv[3] += d; ihv[4] += e;
 }
-*/
+#endif /*BUILDNOCOLLDETECTSHA1COMPRESSION*/
+
 
 static void sha1_compression_W(uint32_t ihv[5], const uint32_t W[80])
 {
@@ -243,313 +282,315 @@ static void sha1_compression_W(uint32_t ihv[5], const uint32_t W[80])
 }
 
 
-static void sha1_compression_states(uint32_t ihv[5], const uint32_t W[80], uint32_t states[80][5])
+
+void sha1_compression_states(uint32_t ihv[5], const uint32_t m[16], uint32_t W[80], uint32_t states[80][5])
 {
 	uint32_t a = ihv[0], b = ihv[1], c = ihv[2], d = ihv[3], e = ihv[4];
+	uint32_t temp;
 
 #ifdef DOSTORESTATE00
 	SHA1_STORE_STATE(0)
 #endif
-	HASHCLASH_SHA1COMPRESS_ROUND1_STEP(a, b, c, d, e, W, 0);
+	SHA1COMPRESS_FULL_ROUND1_STEP_LOAD(a, b, c, d, e, m, W, 0, temp);
 
 #ifdef DOSTORESTATE01
 	SHA1_STORE_STATE(1)
 #endif
-	HASHCLASH_SHA1COMPRESS_ROUND1_STEP(e, a, b, c, d, W, 1);
+	SHA1COMPRESS_FULL_ROUND1_STEP_LOAD(e, a, b, c, d, m, W, 1, temp);
 
 #ifdef DOSTORESTATE02
 	SHA1_STORE_STATE(2)
 #endif
-	HASHCLASH_SHA1COMPRESS_ROUND1_STEP(d, e, a, b, c, W, 2);
+	SHA1COMPRESS_FULL_ROUND1_STEP_LOAD(d, e, a, b, c, m, W, 2, temp);
 
 #ifdef DOSTORESTATE03
 	SHA1_STORE_STATE(3)
 #endif
-	HASHCLASH_SHA1COMPRESS_ROUND1_STEP(c, d, e, a, b, W, 3);
+	SHA1COMPRESS_FULL_ROUND1_STEP_LOAD(c, d, e, a, b, m, W, 3, temp);
 
 #ifdef DOSTORESTATE04
 	SHA1_STORE_STATE(4)
 #endif
-	HASHCLASH_SHA1COMPRESS_ROUND1_STEP(b, c, d, e, a, W, 4);
+	SHA1COMPRESS_FULL_ROUND1_STEP_LOAD(b, c, d, e, a, m, W, 4, temp);
 
 #ifdef DOSTORESTATE05
 	SHA1_STORE_STATE(5)
 #endif
-	HASHCLASH_SHA1COMPRESS_ROUND1_STEP(a, b, c, d, e, W, 5);
+	SHA1COMPRESS_FULL_ROUND1_STEP_LOAD(a, b, c, d, e, m, W, 5, temp);
 
 #ifdef DOSTORESTATE06
 	SHA1_STORE_STATE(6)
 #endif
-	HASHCLASH_SHA1COMPRESS_ROUND1_STEP(e, a, b, c, d, W, 6);
+	SHA1COMPRESS_FULL_ROUND1_STEP_LOAD(e, a, b, c, d, m, W, 6, temp);
 
 #ifdef DOSTORESTATE07
 	SHA1_STORE_STATE(7)
 #endif
-	HASHCLASH_SHA1COMPRESS_ROUND1_STEP(d, e, a, b, c, W, 7);
+	SHA1COMPRESS_FULL_ROUND1_STEP_LOAD(d, e, a, b, c, m, W, 7, temp);
 
 #ifdef DOSTORESTATE08
 	SHA1_STORE_STATE(8)
 #endif
-	HASHCLASH_SHA1COMPRESS_ROUND1_STEP(c, d, e, a, b, W, 8);
+	SHA1COMPRESS_FULL_ROUND1_STEP_LOAD(c, d, e, a, b, m, W, 8, temp);
 
 #ifdef DOSTORESTATE09
 	SHA1_STORE_STATE(9)
 #endif
-	HASHCLASH_SHA1COMPRESS_ROUND1_STEP(b, c, d, e, a, W, 9);
+	SHA1COMPRESS_FULL_ROUND1_STEP_LOAD(b, c, d, e, a, m, W, 9, temp);
 
 #ifdef DOSTORESTATE10
 	SHA1_STORE_STATE(10)
 #endif
-	HASHCLASH_SHA1COMPRESS_ROUND1_STEP(a, b, c, d, e, W, 10);
+	SHA1COMPRESS_FULL_ROUND1_STEP_LOAD(a, b, c, d, e, m, W, 10, temp);
 
 #ifdef DOSTORESTATE11
 	SHA1_STORE_STATE(11)
 #endif
-	HASHCLASH_SHA1COMPRESS_ROUND1_STEP(e, a, b, c, d, W, 11);
+	SHA1COMPRESS_FULL_ROUND1_STEP_LOAD(e, a, b, c, d, m, W, 11, temp);
 
 #ifdef DOSTORESTATE12
 	SHA1_STORE_STATE(12)
 #endif
-	HASHCLASH_SHA1COMPRESS_ROUND1_STEP(d, e, a, b, c, W, 12);
+	SHA1COMPRESS_FULL_ROUND1_STEP_LOAD(d, e, a, b, c, m, W, 12, temp);
 
 #ifdef DOSTORESTATE13
 	SHA1_STORE_STATE(13)
 #endif
-	HASHCLASH_SHA1COMPRESS_ROUND1_STEP(c, d, e, a, b, W, 13);
+	SHA1COMPRESS_FULL_ROUND1_STEP_LOAD(c, d, e, a, b, m, W, 13, temp);
 
 #ifdef DOSTORESTATE14
 	SHA1_STORE_STATE(14)
 #endif
-	HASHCLASH_SHA1COMPRESS_ROUND1_STEP(b, c, d, e, a, W, 14);
+	SHA1COMPRESS_FULL_ROUND1_STEP_LOAD(b, c, d, e, a, m, W, 14, temp);
 
 #ifdef DOSTORESTATE15
 	SHA1_STORE_STATE(15)
 #endif
-	HASHCLASH_SHA1COMPRESS_ROUND1_STEP(a, b, c, d, e, W, 15);
+	SHA1COMPRESS_FULL_ROUND1_STEP_LOAD(a, b, c, d, e, m, W, 15, temp);
 
 #ifdef DOSTORESTATE16
 	SHA1_STORE_STATE(16)
 #endif
-	HASHCLASH_SHA1COMPRESS_ROUND1_STEP(e, a, b, c, d, W, 16);
+	SHA1COMPRESS_FULL_ROUND1_STEP_EXPAND(e, a, b, c, d, W, 16, temp);
 
 #ifdef DOSTORESTATE17
 	SHA1_STORE_STATE(17)
 #endif
-	HASHCLASH_SHA1COMPRESS_ROUND1_STEP(d, e, a, b, c, W, 17);
+	SHA1COMPRESS_FULL_ROUND1_STEP_EXPAND(d, e, a, b, c, W, 17, temp);
 
 #ifdef DOSTORESTATE18
 	SHA1_STORE_STATE(18)
 #endif
-	HASHCLASH_SHA1COMPRESS_ROUND1_STEP(c, d, e, a, b, W, 18);
+	SHA1COMPRESS_FULL_ROUND1_STEP_EXPAND(c, d, e, a, b, W, 18, temp);
 
 #ifdef DOSTORESTATE19
 	SHA1_STORE_STATE(19)
 #endif
-	HASHCLASH_SHA1COMPRESS_ROUND1_STEP(b, c, d, e, a, W, 19);
+	SHA1COMPRESS_FULL_ROUND1_STEP_EXPAND(b, c, d, e, a, W, 19, temp);
 
 
 
 #ifdef DOSTORESTATE20
 	SHA1_STORE_STATE(20)
 #endif
-	HASHCLASH_SHA1COMPRESS_ROUND2_STEP(a, b, c, d, e, W, 20);
+	SHA1COMPRESS_FULL_ROUND2_STEP(a, b, c, d, e, W, 20, temp);
 
 #ifdef DOSTORESTATE21
 	SHA1_STORE_STATE(21)
 #endif
-	HASHCLASH_SHA1COMPRESS_ROUND2_STEP(e, a, b, c, d, W, 21);
+	SHA1COMPRESS_FULL_ROUND2_STEP(e, a, b, c, d, W, 21, temp);
 
 #ifdef DOSTORESTATE22
 	SHA1_STORE_STATE(22)
 #endif
-	HASHCLASH_SHA1COMPRESS_ROUND2_STEP(d, e, a, b, c, W, 22);
+	SHA1COMPRESS_FULL_ROUND2_STEP(d, e, a, b, c, W, 22, temp);
 
 #ifdef DOSTORESTATE23
 	SHA1_STORE_STATE(23)
 #endif
-	HASHCLASH_SHA1COMPRESS_ROUND2_STEP(c, d, e, a, b, W, 23);
+	SHA1COMPRESS_FULL_ROUND2_STEP(c, d, e, a, b, W, 23, temp);
 
 #ifdef DOSTORESTATE24
 	SHA1_STORE_STATE(24)
 #endif
-	HASHCLASH_SHA1COMPRESS_ROUND2_STEP(b, c, d, e, a, W, 24);
+	SHA1COMPRESS_FULL_ROUND2_STEP(b, c, d, e, a, W, 24, temp);
 
 #ifdef DOSTORESTATE25
 	SHA1_STORE_STATE(25)
 #endif
-	HASHCLASH_SHA1COMPRESS_ROUND2_STEP(a, b, c, d, e, W, 25);
+	SHA1COMPRESS_FULL_ROUND2_STEP(a, b, c, d, e, W, 25, temp);
 
 #ifdef DOSTORESTATE26
 	SHA1_STORE_STATE(26)
 #endif
-	HASHCLASH_SHA1COMPRESS_ROUND2_STEP(e, a, b, c, d, W, 26);
+	SHA1COMPRESS_FULL_ROUND2_STEP(e, a, b, c, d, W, 26, temp);
 
 #ifdef DOSTORESTATE27
 	SHA1_STORE_STATE(27)
 #endif
-	HASHCLASH_SHA1COMPRESS_ROUND2_STEP(d, e, a, b, c, W, 27);
+	SHA1COMPRESS_FULL_ROUND2_STEP(d, e, a, b, c, W, 27, temp);
 
 #ifdef DOSTORESTATE28
 	SHA1_STORE_STATE(28)
 #endif
-	HASHCLASH_SHA1COMPRESS_ROUND2_STEP(c, d, e, a, b, W, 28);
+	SHA1COMPRESS_FULL_ROUND2_STEP(c, d, e, a, b, W, 28, temp);
 
 #ifdef DOSTORESTATE29
 	SHA1_STORE_STATE(29)
 #endif
-	HASHCLASH_SHA1COMPRESS_ROUND2_STEP(b, c, d, e, a, W, 29);
+	SHA1COMPRESS_FULL_ROUND2_STEP(b, c, d, e, a, W, 29, temp);
 
 #ifdef DOSTORESTATE30
 	SHA1_STORE_STATE(30)
 #endif
-	HASHCLASH_SHA1COMPRESS_ROUND2_STEP(a, b, c, d, e, W, 30);
+	SHA1COMPRESS_FULL_ROUND2_STEP(a, b, c, d, e, W, 30, temp);
 
 #ifdef DOSTORESTATE31
 	SHA1_STORE_STATE(31)
 #endif
-	HASHCLASH_SHA1COMPRESS_ROUND2_STEP(e, a, b, c, d, W, 31);
+	SHA1COMPRESS_FULL_ROUND2_STEP(e, a, b, c, d, W, 31, temp);
 
 #ifdef DOSTORESTATE32
 	SHA1_STORE_STATE(32)
 #endif
-	HASHCLASH_SHA1COMPRESS_ROUND2_STEP(d, e, a, b, c, W, 32);
+	SHA1COMPRESS_FULL_ROUND2_STEP(d, e, a, b, c, W, 32, temp);
 
 #ifdef DOSTORESTATE33
 	SHA1_STORE_STATE(33)
 #endif
-	HASHCLASH_SHA1COMPRESS_ROUND2_STEP(c, d, e, a, b, W, 33);
+	SHA1COMPRESS_FULL_ROUND2_STEP(c, d, e, a, b, W, 33, temp);
 
 #ifdef DOSTORESTATE34
 	SHA1_STORE_STATE(34)
 #endif
-	HASHCLASH_SHA1COMPRESS_ROUND2_STEP(b, c, d, e, a, W, 34);
+	SHA1COMPRESS_FULL_ROUND2_STEP(b, c, d, e, a, W, 34, temp);
 
 #ifdef DOSTORESTATE35
 	SHA1_STORE_STATE(35)
 #endif
-	HASHCLASH_SHA1COMPRESS_ROUND2_STEP(a, b, c, d, e, W, 35);
+	SHA1COMPRESS_FULL_ROUND2_STEP(a, b, c, d, e, W, 35, temp);
 
 #ifdef DOSTORESTATE36
 	SHA1_STORE_STATE(36)
 #endif
-	HASHCLASH_SHA1COMPRESS_ROUND2_STEP(e, a, b, c, d, W, 36);
+	SHA1COMPRESS_FULL_ROUND2_STEP(e, a, b, c, d, W, 36, temp);
 
 #ifdef DOSTORESTATE37
 	SHA1_STORE_STATE(37)
 #endif
-	HASHCLASH_SHA1COMPRESS_ROUND2_STEP(d, e, a, b, c, W, 37);
+	SHA1COMPRESS_FULL_ROUND2_STEP(d, e, a, b, c, W, 37, temp);
 
 #ifdef DOSTORESTATE38
 	SHA1_STORE_STATE(38)
 #endif
-	HASHCLASH_SHA1COMPRESS_ROUND2_STEP(c, d, e, a, b, W, 38);
+	SHA1COMPRESS_FULL_ROUND2_STEP(c, d, e, a, b, W, 38, temp);
 
 #ifdef DOSTORESTATE39
 	SHA1_STORE_STATE(39)
 #endif
-	HASHCLASH_SHA1COMPRESS_ROUND2_STEP(b, c, d, e, a, W, 39);
+	SHA1COMPRESS_FULL_ROUND2_STEP(b, c, d, e, a, W, 39, temp);
 
 
 
 #ifdef DOSTORESTATE40
 	SHA1_STORE_STATE(40)
 #endif
-	HASHCLASH_SHA1COMPRESS_ROUND3_STEP(a, b, c, d, e, W, 40);
+	SHA1COMPRESS_FULL_ROUND3_STEP(a, b, c, d, e, W, 40, temp);
 
 #ifdef DOSTORESTATE41
 	SHA1_STORE_STATE(41)
 #endif
-	HASHCLASH_SHA1COMPRESS_ROUND3_STEP(e, a, b, c, d, W, 41);
+	SHA1COMPRESS_FULL_ROUND3_STEP(e, a, b, c, d, W, 41, temp);
 
 #ifdef DOSTORESTATE42
 	SHA1_STORE_STATE(42)
 #endif
-	HASHCLASH_SHA1COMPRESS_ROUND3_STEP(d, e, a, b, c, W, 42);
+	SHA1COMPRESS_FULL_ROUND3_STEP(d, e, a, b, c, W, 42, temp);
 
 #ifdef DOSTORESTATE43
 	SHA1_STORE_STATE(43)
 #endif
-	HASHCLASH_SHA1COMPRESS_ROUND3_STEP(c, d, e, a, b, W, 43);
+	SHA1COMPRESS_FULL_ROUND3_STEP(c, d, e, a, b, W, 43, temp);
 
 #ifdef DOSTORESTATE44
 	SHA1_STORE_STATE(44)
 #endif
-	HASHCLASH_SHA1COMPRESS_ROUND3_STEP(b, c, d, e, a, W, 44);
+	SHA1COMPRESS_FULL_ROUND3_STEP(b, c, d, e, a, W, 44, temp);
 
 #ifdef DOSTORESTATE45
 	SHA1_STORE_STATE(45)
 #endif
-	HASHCLASH_SHA1COMPRESS_ROUND3_STEP(a, b, c, d, e, W, 45);
+	SHA1COMPRESS_FULL_ROUND3_STEP(a, b, c, d, e, W, 45, temp);
 
 #ifdef DOSTORESTATE46
 	SHA1_STORE_STATE(46)
 #endif
-	HASHCLASH_SHA1COMPRESS_ROUND3_STEP(e, a, b, c, d, W, 46);
+	SHA1COMPRESS_FULL_ROUND3_STEP(e, a, b, c, d, W, 46, temp);
 
 #ifdef DOSTORESTATE47
 	SHA1_STORE_STATE(47)
 #endif
-	HASHCLASH_SHA1COMPRESS_ROUND3_STEP(d, e, a, b, c, W, 47);
+	SHA1COMPRESS_FULL_ROUND3_STEP(d, e, a, b, c, W, 47, temp);
 
 #ifdef DOSTORESTATE48
 	SHA1_STORE_STATE(48)
 #endif
-	HASHCLASH_SHA1COMPRESS_ROUND3_STEP(c, d, e, a, b, W, 48);
+	SHA1COMPRESS_FULL_ROUND3_STEP(c, d, e, a, b, W, 48, temp);
 
 #ifdef DOSTORESTATE49
 	SHA1_STORE_STATE(49)
 #endif
-	HASHCLASH_SHA1COMPRESS_ROUND3_STEP(b, c, d, e, a, W, 49);
+	SHA1COMPRESS_FULL_ROUND3_STEP(b, c, d, e, a, W, 49, temp);
 
 #ifdef DOSTORESTATE50
 	SHA1_STORE_STATE(50)
 #endif
-	HASHCLASH_SHA1COMPRESS_ROUND3_STEP(a, b, c, d, e, W, 50);
+	SHA1COMPRESS_FULL_ROUND3_STEP(a, b, c, d, e, W, 50, temp);
 
 #ifdef DOSTORESTATE51
 	SHA1_STORE_STATE(51)
 #endif
-	HASHCLASH_SHA1COMPRESS_ROUND3_STEP(e, a, b, c, d, W, 51);
+	SHA1COMPRESS_FULL_ROUND3_STEP(e, a, b, c, d, W, 51, temp);
 
 #ifdef DOSTORESTATE52
 	SHA1_STORE_STATE(52)
 #endif
-	HASHCLASH_SHA1COMPRESS_ROUND3_STEP(d, e, a, b, c, W, 52);
+	SHA1COMPRESS_FULL_ROUND3_STEP(d, e, a, b, c, W, 52, temp);
 
 #ifdef DOSTORESTATE53
 	SHA1_STORE_STATE(53)
 #endif
-	HASHCLASH_SHA1COMPRESS_ROUND3_STEP(c, d, e, a, b, W, 53);
+	SHA1COMPRESS_FULL_ROUND3_STEP(c, d, e, a, b, W, 53, temp);
 
 #ifdef DOSTORESTATE54
 	SHA1_STORE_STATE(54)
 #endif
-	HASHCLASH_SHA1COMPRESS_ROUND3_STEP(b, c, d, e, a, W, 54);
+	SHA1COMPRESS_FULL_ROUND3_STEP(b, c, d, e, a, W, 54, temp);
 
 #ifdef DOSTORESTATE55
 	SHA1_STORE_STATE(55)
 #endif
-	HASHCLASH_SHA1COMPRESS_ROUND3_STEP(a, b, c, d, e, W, 55);
+	SHA1COMPRESS_FULL_ROUND3_STEP(a, b, c, d, e, W, 55, temp);
 
 #ifdef DOSTORESTATE56
 	SHA1_STORE_STATE(56)
 #endif
-	HASHCLASH_SHA1COMPRESS_ROUND3_STEP(e, a, b, c, d, W, 56);
+	SHA1COMPRESS_FULL_ROUND3_STEP(e, a, b, c, d, W, 56, temp);
 
 #ifdef DOSTORESTATE57
 	SHA1_STORE_STATE(57)
 #endif
-	HASHCLASH_SHA1COMPRESS_ROUND3_STEP(d, e, a, b, c, W, 57);
+	SHA1COMPRESS_FULL_ROUND3_STEP(d, e, a, b, c, W, 57, temp);
 
 #ifdef DOSTORESTATE58
 	SHA1_STORE_STATE(58)
 #endif
-	HASHCLASH_SHA1COMPRESS_ROUND3_STEP(c, d, e, a, b, W, 58);
+	SHA1COMPRESS_FULL_ROUND3_STEP(c, d, e, a, b, W, 58, temp);
 
 #ifdef DOSTORESTATE59
 	SHA1_STORE_STATE(59)
 #endif
-	HASHCLASH_SHA1COMPRESS_ROUND3_STEP(b, c, d, e, a, W, 59);
+	SHA1COMPRESS_FULL_ROUND3_STEP(b, c, d, e, a, W, 59, temp);
 
 
 
@@ -557,102 +598,102 @@ static void sha1_compression_states(uint32_t ihv[5], const uint32_t W[80], uint3
 #ifdef DOSTORESTATE60
 	SHA1_STORE_STATE(60)
 #endif
-	HASHCLASH_SHA1COMPRESS_ROUND4_STEP(a, b, c, d, e, W, 60);
+	SHA1COMPRESS_FULL_ROUND4_STEP(a, b, c, d, e, W, 60, temp);
 
 #ifdef DOSTORESTATE61
 	SHA1_STORE_STATE(61)
 #endif
-	HASHCLASH_SHA1COMPRESS_ROUND4_STEP(e, a, b, c, d, W, 61);
+	SHA1COMPRESS_FULL_ROUND4_STEP(e, a, b, c, d, W, 61, temp);
 
 #ifdef DOSTORESTATE62
 	SHA1_STORE_STATE(62)
 #endif
-	HASHCLASH_SHA1COMPRESS_ROUND4_STEP(d, e, a, b, c, W, 62);
+	SHA1COMPRESS_FULL_ROUND4_STEP(d, e, a, b, c, W, 62, temp);
 
 #ifdef DOSTORESTATE63
 	SHA1_STORE_STATE(63)
 #endif
-	HASHCLASH_SHA1COMPRESS_ROUND4_STEP(c, d, e, a, b, W, 63);
+	SHA1COMPRESS_FULL_ROUND4_STEP(c, d, e, a, b, W, 63, temp);
 
 #ifdef DOSTORESTATE64
 	SHA1_STORE_STATE(64)
 #endif
-	HASHCLASH_SHA1COMPRESS_ROUND4_STEP(b, c, d, e, a, W, 64);
+	SHA1COMPRESS_FULL_ROUND4_STEP(b, c, d, e, a, W, 64, temp);
 
 #ifdef DOSTORESTATE65
 	SHA1_STORE_STATE(65)
 #endif
-	HASHCLASH_SHA1COMPRESS_ROUND4_STEP(a, b, c, d, e, W, 65);
+	SHA1COMPRESS_FULL_ROUND4_STEP(a, b, c, d, e, W, 65, temp);
 
 #ifdef DOSTORESTATE66
 	SHA1_STORE_STATE(66)
 #endif
-	HASHCLASH_SHA1COMPRESS_ROUND4_STEP(e, a, b, c, d, W, 66);
+	SHA1COMPRESS_FULL_ROUND4_STEP(e, a, b, c, d, W, 66, temp);
 
 #ifdef DOSTORESTATE67
 	SHA1_STORE_STATE(67)
 #endif
-	HASHCLASH_SHA1COMPRESS_ROUND4_STEP(d, e, a, b, c, W, 67);
+	SHA1COMPRESS_FULL_ROUND4_STEP(d, e, a, b, c, W, 67, temp);
 
 #ifdef DOSTORESTATE68
 	SHA1_STORE_STATE(68)
 #endif
-	HASHCLASH_SHA1COMPRESS_ROUND4_STEP(c, d, e, a, b, W, 68);
+	SHA1COMPRESS_FULL_ROUND4_STEP(c, d, e, a, b, W, 68, temp);
 
 #ifdef DOSTORESTATE69
 	SHA1_STORE_STATE(69)
 #endif
-	HASHCLASH_SHA1COMPRESS_ROUND4_STEP(b, c, d, e, a, W, 69);
+	SHA1COMPRESS_FULL_ROUND4_STEP(b, c, d, e, a, W, 69, temp);
 
 #ifdef DOSTORESTATE70
 	SHA1_STORE_STATE(70)
 #endif
-	HASHCLASH_SHA1COMPRESS_ROUND4_STEP(a, b, c, d, e, W, 70);
+	SHA1COMPRESS_FULL_ROUND4_STEP(a, b, c, d, e, W, 70, temp);
 
 #ifdef DOSTORESTATE71
 	SHA1_STORE_STATE(71)
 #endif
-	HASHCLASH_SHA1COMPRESS_ROUND4_STEP(e, a, b, c, d, W, 71);
+	SHA1COMPRESS_FULL_ROUND4_STEP(e, a, b, c, d, W, 71, temp);
 
 #ifdef DOSTORESTATE72
 	SHA1_STORE_STATE(72)
 #endif
-	HASHCLASH_SHA1COMPRESS_ROUND4_STEP(d, e, a, b, c, W, 72);
+	SHA1COMPRESS_FULL_ROUND4_STEP(d, e, a, b, c, W, 72, temp);
 
 #ifdef DOSTORESTATE73
 	SHA1_STORE_STATE(73)
 #endif
-	HASHCLASH_SHA1COMPRESS_ROUND4_STEP(c, d, e, a, b, W, 73);
+	SHA1COMPRESS_FULL_ROUND4_STEP(c, d, e, a, b, W, 73, temp);
 
 #ifdef DOSTORESTATE74
 	SHA1_STORE_STATE(74)
 #endif
-	HASHCLASH_SHA1COMPRESS_ROUND4_STEP(b, c, d, e, a, W, 74);
+	SHA1COMPRESS_FULL_ROUND4_STEP(b, c, d, e, a, W, 74, temp);
 
 #ifdef DOSTORESTATE75
 	SHA1_STORE_STATE(75)
 #endif
-	HASHCLASH_SHA1COMPRESS_ROUND4_STEP(a, b, c, d, e, W, 75);
+	SHA1COMPRESS_FULL_ROUND4_STEP(a, b, c, d, e, W, 75, temp);
 
 #ifdef DOSTORESTATE76
 	SHA1_STORE_STATE(76)
 #endif
-	HASHCLASH_SHA1COMPRESS_ROUND4_STEP(e, a, b, c, d, W, 76);
+	SHA1COMPRESS_FULL_ROUND4_STEP(e, a, b, c, d, W, 76, temp);
 
 #ifdef DOSTORESTATE77
 	SHA1_STORE_STATE(77)
 #endif
-	HASHCLASH_SHA1COMPRESS_ROUND4_STEP(d, e, a, b, c, W, 77);
+	SHA1COMPRESS_FULL_ROUND4_STEP(d, e, a, b, c, W, 77, temp);
 
 #ifdef DOSTORESTATE78
 	SHA1_STORE_STATE(78)
 #endif
-	HASHCLASH_SHA1COMPRESS_ROUND4_STEP(c, d, e, a, b, W, 78);
+	SHA1COMPRESS_FULL_ROUND4_STEP(c, d, e, a, b, W, 78, temp);
 
 #ifdef DOSTORESTATE79
 	SHA1_STORE_STATE(79)
 #endif
-	HASHCLASH_SHA1COMPRESS_ROUND4_STEP(b, c, d, e, a, W, 79);
+	SHA1COMPRESS_FULL_ROUND4_STEP(b, c, d, e, a, W, 79, temp);
 
 
 
@@ -831,197 +872,792 @@ static void sha1recompress_fast_ ## t (uint32_t ihvin[5], uint32_t ihvout[5], co
 	ihvout[0] = ihvin[0] + a; ihvout[1] = ihvin[1] + b; ihvout[2] = ihvin[2] + c; ihvout[3] = ihvin[3] + d; ihvout[4] = ihvin[4] + e; \
 }
 
-/*
+#ifdef DOSTORESTATE0
 SHA1_RECOMPRESS(0)
+#endif
+
+#ifdef DOSTORESTATE1
 SHA1_RECOMPRESS(1)
+#endif
+
+#ifdef DOSTORESTATE2
 SHA1_RECOMPRESS(2)
+#endif
+
+#ifdef DOSTORESTATE3
 SHA1_RECOMPRESS(3)
+#endif
+
+#ifdef DOSTORESTATE4
 SHA1_RECOMPRESS(4)
+#endif
+
+#ifdef DOSTORESTATE5
 SHA1_RECOMPRESS(5)
+#endif
+
+#ifdef DOSTORESTATE6
 SHA1_RECOMPRESS(6)
+#endif
+
+#ifdef DOSTORESTATE7
 SHA1_RECOMPRESS(7)
+#endif
+
+#ifdef DOSTORESTATE8
 SHA1_RECOMPRESS(8)
+#endif
+
+#ifdef DOSTORESTATE9
 SHA1_RECOMPRESS(9)
+#endif
 
+#ifdef DOSTORESTATE10
 SHA1_RECOMPRESS(10)
+#endif
+
+#ifdef DOSTORESTATE11
 SHA1_RECOMPRESS(11)
+#endif
+
+#ifdef DOSTORESTATE12
 SHA1_RECOMPRESS(12)
+#endif
+
+#ifdef DOSTORESTATE13
 SHA1_RECOMPRESS(13)
+#endif
+
+#ifdef DOSTORESTATE14
 SHA1_RECOMPRESS(14)
+#endif
+
+#ifdef DOSTORESTATE15
 SHA1_RECOMPRESS(15)
+#endif
+
+#ifdef DOSTORESTATE16
 SHA1_RECOMPRESS(16)
+#endif
+
+#ifdef DOSTORESTATE17
 SHA1_RECOMPRESS(17)
+#endif
+
+#ifdef DOSTORESTATE18
 SHA1_RECOMPRESS(18)
+#endif
+
+#ifdef DOSTORESTATE19
 SHA1_RECOMPRESS(19)
+#endif
 
+#ifdef DOSTORESTATE20
 SHA1_RECOMPRESS(20)
+#endif
+
+#ifdef DOSTORESTATE21
 SHA1_RECOMPRESS(21)
+#endif
+
+#ifdef DOSTORESTATE22
 SHA1_RECOMPRESS(22)
+#endif
+
+#ifdef DOSTORESTATE23
 SHA1_RECOMPRESS(23)
+#endif
+
+#ifdef DOSTORESTATE24
 SHA1_RECOMPRESS(24)
+#endif
+
+#ifdef DOSTORESTATE25
 SHA1_RECOMPRESS(25)
+#endif
+
+#ifdef DOSTORESTATE26
 SHA1_RECOMPRESS(26)
+#endif
+
+#ifdef DOSTORESTATE27
 SHA1_RECOMPRESS(27)
+#endif
+
+#ifdef DOSTORESTATE28
 SHA1_RECOMPRESS(28)
+#endif
+
+#ifdef DOSTORESTATE29
 SHA1_RECOMPRESS(29)
+#endif
 
+#ifdef DOSTORESTATE30
 SHA1_RECOMPRESS(30)
+#endif
+
+#ifdef DOSTORESTATE31
 SHA1_RECOMPRESS(31)
+#endif
+
+#ifdef DOSTORESTATE32
 SHA1_RECOMPRESS(32)
+#endif
+
+#ifdef DOSTORESTATE33
 SHA1_RECOMPRESS(33)
+#endif
+
+#ifdef DOSTORESTATE34
 SHA1_RECOMPRESS(34)
+#endif
+
+#ifdef DOSTORESTATE35
 SHA1_RECOMPRESS(35)
+#endif
+
+#ifdef DOSTORESTATE36
 SHA1_RECOMPRESS(36)
+#endif
+
+#ifdef DOSTORESTATE37
 SHA1_RECOMPRESS(37)
+#endif
+
+#ifdef DOSTORESTATE38
 SHA1_RECOMPRESS(38)
+#endif
+
+#ifdef DOSTORESTATE39
 SHA1_RECOMPRESS(39)
+#endif
 
+#ifdef DOSTORESTATE40
 SHA1_RECOMPRESS(40)
+#endif
+
+#ifdef DOSTORESTATE41
 SHA1_RECOMPRESS(41)
+#endif
+
+#ifdef DOSTORESTATE42
 SHA1_RECOMPRESS(42)
+#endif
+
+#ifdef DOSTORESTATE43
 SHA1_RECOMPRESS(43)
+#endif
+
+#ifdef DOSTORESTATE44
 SHA1_RECOMPRESS(44)
+#endif
+
+#ifdef DOSTORESTATE45
 SHA1_RECOMPRESS(45)
+#endif
+
+#ifdef DOSTORESTATE46
 SHA1_RECOMPRESS(46)
+#endif
+
+#ifdef DOSTORESTATE47
 SHA1_RECOMPRESS(47)
+#endif
+
+#ifdef DOSTORESTATE48
 SHA1_RECOMPRESS(48)
+#endif
+
+#ifdef DOSTORESTATE49
 SHA1_RECOMPRESS(49)
+#endif
 
+#ifdef DOSTORESTATE50
 SHA1_RECOMPRESS(50)
+#endif
+
+#ifdef DOSTORESTATE51
 SHA1_RECOMPRESS(51)
+#endif
+
+#ifdef DOSTORESTATE52
 SHA1_RECOMPRESS(52)
+#endif
+
+#ifdef DOSTORESTATE53
 SHA1_RECOMPRESS(53)
+#endif
+
+#ifdef DOSTORESTATE54
 SHA1_RECOMPRESS(54)
+#endif
+
+#ifdef DOSTORESTATE55
 SHA1_RECOMPRESS(55)
+#endif
+
+#ifdef DOSTORESTATE56
 SHA1_RECOMPRESS(56)
+#endif
+
+#ifdef DOSTORESTATE57
 SHA1_RECOMPRESS(57)
-*/
+#endif
+
+#ifdef DOSTORESTATE58
 SHA1_RECOMPRESS(58)
-/*
+#endif
+
+#ifdef DOSTORESTATE59
 SHA1_RECOMPRESS(59)
+#endif
 
+#ifdef DOSTORESTATE60
 SHA1_RECOMPRESS(60)
+#endif
+
+#ifdef DOSTORESTATE61
 SHA1_RECOMPRESS(61)
+#endif
+
+#ifdef DOSTORESTATE62
 SHA1_RECOMPRESS(62)
+#endif
+
+#ifdef DOSTORESTATE63
 SHA1_RECOMPRESS(63)
+#endif
+
+#ifdef DOSTORESTATE64
 SHA1_RECOMPRESS(64)
-*/
+#endif
+
+#ifdef DOSTORESTATE65
 SHA1_RECOMPRESS(65)
-/*
+#endif
+
+#ifdef DOSTORESTATE66
 SHA1_RECOMPRESS(66)
+#endif
+
+#ifdef DOSTORESTATE67
 SHA1_RECOMPRESS(67)
+#endif
+
+#ifdef DOSTORESTATE68
 SHA1_RECOMPRESS(68)
+#endif
+
+#ifdef DOSTORESTATE69
 SHA1_RECOMPRESS(69)
+#endif
 
+#ifdef DOSTORESTATE70
 SHA1_RECOMPRESS(70)
+#endif
+
+#ifdef DOSTORESTATE71
 SHA1_RECOMPRESS(71)
+#endif
+
+#ifdef DOSTORESTATE72
 SHA1_RECOMPRESS(72)
+#endif
+
+#ifdef DOSTORESTATE73
 SHA1_RECOMPRESS(73)
+#endif
+
+#ifdef DOSTORESTATE74
 SHA1_RECOMPRESS(74)
+#endif
+
+#ifdef DOSTORESTATE75
 SHA1_RECOMPRESS(75)
+#endif
+
+#ifdef DOSTORESTATE76
 SHA1_RECOMPRESS(76)
+#endif
+
+#ifdef DOSTORESTATE77
 SHA1_RECOMPRESS(77)
+#endif
+
+#ifdef DOSTORESTATE78
 SHA1_RECOMPRESS(78)
+#endif
+
+#ifdef DOSTORESTATE79
 SHA1_RECOMPRESS(79)
-*/
+#endif
 
-/*
-sha1_recompression_type sha1_recompression_step[80] =
+static void sha1_recompression_step(uint32_t step, uint32_t ihvin[5], uint32_t ihvout[5], const uint32_t me2[80], const uint32_t state[5])
 {
-	sha1recompress_fast_0, sha1recompress_fast_1, sha1recompress_fast_2, sha1recompress_fast_3, sha1recompress_fast_4, sha1recompress_fast_5, sha1recompress_fast_6, sha1recompress_fast_7, sha1recompress_fast_8, sha1recompress_fast_9,
-	sha1recompress_fast_10, sha1recompress_fast_11, sha1recompress_fast_12, sha1recompress_fast_13, sha1recompress_fast_14, sha1recompress_fast_15, sha1recompress_fast_16, sha1recompress_fast_17, sha1recompress_fast_18, sha1recompress_fast_19,
-	sha1recompress_fast_20, sha1recompress_fast_21, sha1recompress_fast_22, sha1recompress_fast_23, sha1recompress_fast_24, sha1recompress_fast_25, sha1recompress_fast_26, sha1recompress_fast_27, sha1recompress_fast_28, sha1recompress_fast_29,
-	sha1recompress_fast_30, sha1recompress_fast_31, sha1recompress_fast_32, sha1recompress_fast_33, sha1recompress_fast_34, sha1recompress_fast_35, sha1recompress_fast_36, sha1recompress_fast_37, sha1recompress_fast_38, sha1recompress_fast_39,
-	sha1recompress_fast_40, sha1recompress_fast_41, sha1recompress_fast_42, sha1recompress_fast_43, sha1recompress_fast_44, sha1recompress_fast_45, sha1recompress_fast_46, sha1recompress_fast_47, sha1recompress_fast_48, sha1recompress_fast_49,
-	sha1recompress_fast_50, sha1recompress_fast_51, sha1recompress_fast_52, sha1recompress_fast_53, sha1recompress_fast_54, sha1recompress_fast_55, sha1recompress_fast_56, sha1recompress_fast_57, sha1recompress_fast_58, sha1recompress_fast_59,
-	sha1recompress_fast_60, sha1recompress_fast_61, sha1recompress_fast_62, sha1recompress_fast_63, sha1recompress_fast_64, sha1recompress_fast_65, sha1recompress_fast_66, sha1recompress_fast_67, sha1recompress_fast_68, sha1recompress_fast_69,
-	sha1recompress_fast_70, sha1recompress_fast_71, sha1recompress_fast_72, sha1recompress_fast_73, sha1recompress_fast_74, sha1recompress_fast_75, sha1recompress_fast_76, sha1recompress_fast_77, sha1recompress_fast_78, sha1recompress_fast_79,
-};
-*/
+	switch (step)
+	{
+#ifdef DOSTORESTATE0
+	case 0:
+		sha1recompress_fast_0(ihvin, ihvout, me2, state);
+		break;
+#endif
+#ifdef DOSTORESTATE1
+	case 1:
+		sha1recompress_fast_1(ihvin, ihvout, me2, state);
+		break;
+#endif
+#ifdef DOSTORESTATE2
+	case 2:
+		sha1recompress_fast_2(ihvin, ihvout, me2, state);
+		break;
+#endif
+#ifdef DOSTORESTATE3
+	case 3:
+		sha1recompress_fast_3(ihvin, ihvout, me2, state);
+		break;
+#endif
+#ifdef DOSTORESTATE4
+	case 4:
+		sha1recompress_fast_4(ihvin, ihvout, me2, state);
+		break;
+#endif
+#ifdef DOSTORESTATE5
+	case 5:
+		sha1recompress_fast_5(ihvin, ihvout, me2, state);
+		break;
+#endif
+#ifdef DOSTORESTATE6
+	case 6:
+		sha1recompress_fast_6(ihvin, ihvout, me2, state);
+		break;
+#endif
+#ifdef DOSTORESTATE7
+	case 7:
+		sha1recompress_fast_7(ihvin, ihvout, me2, state);
+		break;
+#endif
+#ifdef DOSTORESTATE8
+	case 8:
+		sha1recompress_fast_8(ihvin, ihvout, me2, state);
+		break;
+#endif
+#ifdef DOSTORESTATE9
+	case 9:
+		sha1recompress_fast_9(ihvin, ihvout, me2, state);
+		break;
+#endif
+#ifdef DOSTORESTATE10
+	case 10:
+		sha1recompress_fast_10(ihvin, ihvout, me2, state);
+		break;
+#endif
+#ifdef DOSTORESTATE11
+	case 11:
+		sha1recompress_fast_11(ihvin, ihvout, me2, state);
+		break;
+#endif
+#ifdef DOSTORESTATE12
+	case 12:
+		sha1recompress_fast_12(ihvin, ihvout, me2, state);
+		break;
+#endif
+#ifdef DOSTORESTATE13
+	case 13:
+		sha1recompress_fast_13(ihvin, ihvout, me2, state);
+		break;
+#endif
+#ifdef DOSTORESTATE14
+	case 14:
+		sha1recompress_fast_14(ihvin, ihvout, me2, state);
+		break;
+#endif
+#ifdef DOSTORESTATE15
+	case 15:
+		sha1recompress_fast_15(ihvin, ihvout, me2, state);
+		break;
+#endif
+#ifdef DOSTORESTATE16
+	case 16:
+		sha1recompress_fast_16(ihvin, ihvout, me2, state);
+		break;
+#endif
+#ifdef DOSTORESTATE17
+	case 17:
+		sha1recompress_fast_17(ihvin, ihvout, me2, state);
+		break;
+#endif
+#ifdef DOSTORESTATE18
+	case 18:
+		sha1recompress_fast_18(ihvin, ihvout, me2, state);
+		break;
+#endif
+#ifdef DOSTORESTATE19
+	case 19:
+		sha1recompress_fast_19(ihvin, ihvout, me2, state);
+		break;
+#endif
+#ifdef DOSTORESTATE20
+	case 20:
+		sha1recompress_fast_20(ihvin, ihvout, me2, state);
+		break;
+#endif
+#ifdef DOSTORESTATE21
+	case 21:
+		sha1recompress_fast_21(ihvin, ihvout, me2, state);
+		break;
+#endif
+#ifdef DOSTORESTATE22
+	case 22:
+		sha1recompress_fast_22(ihvin, ihvout, me2, state);
+		break;
+#endif
+#ifdef DOSTORESTATE23
+	case 23:
+		sha1recompress_fast_23(ihvin, ihvout, me2, state);
+		break;
+#endif
+#ifdef DOSTORESTATE24
+	case 24:
+		sha1recompress_fast_24(ihvin, ihvout, me2, state);
+		break;
+#endif
+#ifdef DOSTORESTATE25
+	case 25:
+		sha1recompress_fast_25(ihvin, ihvout, me2, state);
+		break;
+#endif
+#ifdef DOSTORESTATE26
+	case 26:
+		sha1recompress_fast_26(ihvin, ihvout, me2, state);
+		break;
+#endif
+#ifdef DOSTORESTATE27
+	case 27:
+		sha1recompress_fast_27(ihvin, ihvout, me2, state);
+		break;
+#endif
+#ifdef DOSTORESTATE28
+	case 28:
+		sha1recompress_fast_28(ihvin, ihvout, me2, state);
+		break;
+#endif
+#ifdef DOSTORESTATE29
+	case 29:
+		sha1recompress_fast_29(ihvin, ihvout, me2, state);
+		break;
+#endif
+#ifdef DOSTORESTATE30
+	case 30:
+		sha1recompress_fast_30(ihvin, ihvout, me2, state);
+		break;
+#endif
+#ifdef DOSTORESTATE31
+	case 31:
+		sha1recompress_fast_31(ihvin, ihvout, me2, state);
+		break;
+#endif
+#ifdef DOSTORESTATE32
+	case 32:
+		sha1recompress_fast_32(ihvin, ihvout, me2, state);
+		break;
+#endif
+#ifdef DOSTORESTATE33
+	case 33:
+		sha1recompress_fast_33(ihvin, ihvout, me2, state);
+		break;
+#endif
+#ifdef DOSTORESTATE34
+	case 34:
+		sha1recompress_fast_34(ihvin, ihvout, me2, state);
+		break;
+#endif
+#ifdef DOSTORESTATE35
+	case 35:
+		sha1recompress_fast_35(ihvin, ihvout, me2, state);
+		break;
+#endif
+#ifdef DOSTORESTATE36
+	case 36:
+		sha1recompress_fast_36(ihvin, ihvout, me2, state);
+		break;
+#endif
+#ifdef DOSTORESTATE37
+	case 37:
+		sha1recompress_fast_37(ihvin, ihvout, me2, state);
+		break;
+#endif
+#ifdef DOSTORESTATE38
+	case 38:
+		sha1recompress_fast_38(ihvin, ihvout, me2, state);
+		break;
+#endif
+#ifdef DOSTORESTATE39
+	case 39:
+		sha1recompress_fast_39(ihvin, ihvout, me2, state);
+		break;
+#endif
+#ifdef DOSTORESTATE40
+	case 40:
+		sha1recompress_fast_40(ihvin, ihvout, me2, state);
+		break;
+#endif
+#ifdef DOSTORESTATE41
+	case 41:
+		sha1recompress_fast_41(ihvin, ihvout, me2, state);
+		break;
+#endif
+#ifdef DOSTORESTATE42
+	case 42:
+		sha1recompress_fast_42(ihvin, ihvout, me2, state);
+		break;
+#endif
+#ifdef DOSTORESTATE43
+	case 43:
+		sha1recompress_fast_43(ihvin, ihvout, me2, state);
+		break;
+#endif
+#ifdef DOSTORESTATE44
+	case 44:
+		sha1recompress_fast_44(ihvin, ihvout, me2, state);
+		break;
+#endif
+#ifdef DOSTORESTATE45
+	case 45:
+		sha1recompress_fast_45(ihvin, ihvout, me2, state);
+		break;
+#endif
+#ifdef DOSTORESTATE46
+	case 46:
+		sha1recompress_fast_46(ihvin, ihvout, me2, state);
+		break;
+#endif
+#ifdef DOSTORESTATE47
+	case 47:
+		sha1recompress_fast_47(ihvin, ihvout, me2, state);
+		break;
+#endif
+#ifdef DOSTORESTATE48
+	case 48:
+		sha1recompress_fast_48(ihvin, ihvout, me2, state);
+		break;
+#endif
+#ifdef DOSTORESTATE49
+	case 49:
+		sha1recompress_fast_49(ihvin, ihvout, me2, state);
+		break;
+#endif
+#ifdef DOSTORESTATE50
+	case 50:
+		sha1recompress_fast_50(ihvin, ihvout, me2, state);
+		break;
+#endif
+#ifdef DOSTORESTATE51
+	case 51:
+		sha1recompress_fast_51(ihvin, ihvout, me2, state);
+		break;
+#endif
+#ifdef DOSTORESTATE52
+	case 52:
+		sha1recompress_fast_52(ihvin, ihvout, me2, state);
+		break;
+#endif
+#ifdef DOSTORESTATE53
+	case 53:
+		sha1recompress_fast_53(ihvin, ihvout, me2, state);
+		break;
+#endif
+#ifdef DOSTORESTATE54
+	case 54:
+		sha1recompress_fast_54(ihvin, ihvout, me2, state);
+		break;
+#endif
+#ifdef DOSTORESTATE55
+	case 55:
+		sha1recompress_fast_55(ihvin, ihvout, me2, state);
+		break;
+#endif
+#ifdef DOSTORESTATE56
+	case 56:
+		sha1recompress_fast_56(ihvin, ihvout, me2, state);
+		break;
+#endif
+#ifdef DOSTORESTATE57
+	case 57:
+		sha1recompress_fast_57(ihvin, ihvout, me2, state);
+		break;
+#endif
+#ifdef DOSTORESTATE58
+	case 58:
+		sha1recompress_fast_58(ihvin, ihvout, me2, state);
+		break;
+#endif
+#ifdef DOSTORESTATE59
+	case 59:
+		sha1recompress_fast_59(ihvin, ihvout, me2, state);
+		break;
+#endif
+#ifdef DOSTORESTATE60
+	case 60:
+		sha1recompress_fast_60(ihvin, ihvout, me2, state);
+		break;
+#endif
+#ifdef DOSTORESTATE61
+	case 61:
+		sha1recompress_fast_61(ihvin, ihvout, me2, state);
+		break;
+#endif
+#ifdef DOSTORESTATE62
+	case 62:
+		sha1recompress_fast_62(ihvin, ihvout, me2, state);
+		break;
+#endif
+#ifdef DOSTORESTATE63
+	case 63:
+		sha1recompress_fast_63(ihvin, ihvout, me2, state);
+		break;
+#endif
+#ifdef DOSTORESTATE64
+	case 64:
+		sha1recompress_fast_64(ihvin, ihvout, me2, state);
+		break;
+#endif
+#ifdef DOSTORESTATE65
+	case 65:
+		sha1recompress_fast_65(ihvin, ihvout, me2, state);
+		break;
+#endif
+#ifdef DOSTORESTATE66
+	case 66:
+		sha1recompress_fast_66(ihvin, ihvout, me2, state);
+		break;
+#endif
+#ifdef DOSTORESTATE67
+	case 67:
+		sha1recompress_fast_67(ihvin, ihvout, me2, state);
+		break;
+#endif
+#ifdef DOSTORESTATE68
+	case 68:
+		sha1recompress_fast_68(ihvin, ihvout, me2, state);
+		break;
+#endif
+#ifdef DOSTORESTATE69
+	case 69:
+		sha1recompress_fast_69(ihvin, ihvout, me2, state);
+		break;
+#endif
+#ifdef DOSTORESTATE70
+	case 70:
+		sha1recompress_fast_70(ihvin, ihvout, me2, state);
+		break;
+#endif
+#ifdef DOSTORESTATE71
+	case 71:
+		sha1recompress_fast_71(ihvin, ihvout, me2, state);
+		break;
+#endif
+#ifdef DOSTORESTATE72
+	case 72:
+		sha1recompress_fast_72(ihvin, ihvout, me2, state);
+		break;
+#endif
+#ifdef DOSTORESTATE73
+	case 73:
+		sha1recompress_fast_73(ihvin, ihvout, me2, state);
+		break;
+#endif
+#ifdef DOSTORESTATE74
+	case 74:
+		sha1recompress_fast_74(ihvin, ihvout, me2, state);
+		break;
+#endif
+#ifdef DOSTORESTATE75
+	case 75:
+		sha1recompress_fast_75(ihvin, ihvout, me2, state);
+		break;
+#endif
+#ifdef DOSTORESTATE76
+	case 76:
+		sha1recompress_fast_76(ihvin, ihvout, me2, state);
+		break;
+#endif
+#ifdef DOSTORESTATE77
+	case 77:
+		sha1recompress_fast_77(ihvin, ihvout, me2, state);
+		break;
+#endif
+#ifdef DOSTORESTATE78
+	case 78:
+		sha1recompress_fast_78(ihvin, ihvout, me2, state);
+		break;
+#endif
+#ifdef DOSTORESTATE79
+	case 79:
+		sha1recompress_fast_79(ihvin, ihvout, me2, state);
+		break;
+#endif
+	default:
+		abort();
+	}
 
+}
 
 
 
-void sha1_process(SHA1_CTX* ctx, const uint32_t block[16])
+static void sha1_process(SHA1_CTX* ctx, const uint32_t block[16])
 {
 	unsigned i, j;
-	uint32_t ubc_dv_mask[DVMASKSIZE];
+	uint32_t ubc_dv_mask[DVMASKSIZE] = { 0xFFFFFFFF };
 	uint32_t ihvtmp[5];
-	for (i=0; i < DVMASKSIZE; ++i)
-		ubc_dv_mask[i]=0;
+	
 	ctx->ihv1[0] = ctx->ihv[0];
 	ctx->ihv1[1] = ctx->ihv[1];
 	ctx->ihv1[2] = ctx->ihv[2];
 	ctx->ihv1[3] = ctx->ihv[3];
 	ctx->ihv1[4] = ctx->ihv[4];
-	memcpy(ctx->m1, block, 64);
-	sha1_message_expansion(ctx->m1);
-	if (ctx->detect_coll && ctx->ubc_check)
-	{
-		ubc_check(ctx->m1, ubc_dv_mask);
-	}
-	sha1_compression_states(ctx->ihv, ctx->m1, ctx->states);
+
+	sha1_compression_states(ctx->ihv, block, ctx->m1, ctx->states);
+
 	if (ctx->detect_coll)
 	{
-		for (i = 0; sha1_dvs[i].dvType != 0; ++i)
+		if (ctx->ubc_check)
 		{
-			if ((0 == ctx->ubc_check) || (((uint32_t)(1) << sha1_dvs[i].maskb) & ubc_dv_mask[sha1_dvs[i].maski]))
-			{
-				for (j = 0; j < 80; ++j)
-					ctx->m2[j] = ctx->m1[j] ^ sha1_dvs[i].dm[j];
+			ubc_check(ctx->m1, ubc_dv_mask);
+		}
 
-				/* (sha1_recompression_step[sha1_dvs[i].testt])(ctx->ihv2, ihvtmp, ctx->m2, ctx->states[sha1_dvs[i].testt]); */
-				switch (sha1_dvs[i].testt)
-				{
-				case 58:
-					sha1recompress_fast_58(ctx->ihv2, ihvtmp, ctx->m2, ctx->states[sha1_dvs[i].testt]);
-					break;
-				case 65:
-					sha1recompress_fast_65(ctx->ihv2, ihvtmp, ctx->m2, ctx->states[sha1_dvs[i].testt]);
-					break;
-				default:
-					abort();
-				}
-				/* to verify SHA-1 collision detection code with collisions for reduced-step SHA-1 */
-				if ((0 == ((ihvtmp[0] ^ ctx->ihv[0]) | (ihvtmp[1] ^ ctx->ihv[1]) | (ihvtmp[2] ^ ctx->ihv[2]) | (ihvtmp[3] ^ ctx->ihv[3]) | (ihvtmp[4] ^ ctx->ihv[4])))
-					|| (ctx->reduced_round_coll && 0==((ctx->ihv1[0] ^ ctx->ihv2[0]) | (ctx->ihv1[1] ^ ctx->ihv2[1]) | (ctx->ihv1[2] ^ ctx->ihv2[2]) | (ctx->ihv1[3] ^ ctx->ihv2[3]) | (ctx->ihv1[4] ^ ctx->ihv2[4]))))
+		if (ubc_dv_mask[0] != 0)
+		{
+			for (i = 0; sha1_dvs[i].dvType != 0; ++i)
+			{
+				if (ubc_dv_mask[0] & ((uint32_t)(1) << sha1_dvs[i].maskb))
 				{
-					ctx->found_collision = 1;
+					for (j = 0; j < 80; ++j)
+						ctx->m2[j] = ctx->m1[j] ^ sha1_dvs[i].dm[j];
 
-					if (ctx->callback != NULL)
-						ctx->callback(ctx->total - 64, ctx->ihv1, ctx->ihv2, ctx->m1, ctx->m2);
+					sha1_recompression_step(sha1_dvs[i].testt, ctx->ihv2, ihvtmp, ctx->m2, ctx->states[sha1_dvs[i].testt]);
 
-					if (ctx->safe_hash)
+					/* to verify SHA-1 collision detection code with collisions for reduced-step SHA-1 */
+					if ((0 == ((ihvtmp[0] ^ ctx->ihv[0]) | (ihvtmp[1] ^ ctx->ihv[1]) | (ihvtmp[2] ^ ctx->ihv[2]) | (ihvtmp[3] ^ ctx->ihv[3]) | (ihvtmp[4] ^ ctx->ihv[4])))
+						|| (ctx->reduced_round_coll && 0==((ctx->ihv1[0] ^ ctx->ihv2[0]) | (ctx->ihv1[1] ^ ctx->ihv2[1]) | (ctx->ihv1[2] ^ ctx->ihv2[2]) | (ctx->ihv1[3] ^ ctx->ihv2[3]) | (ctx->ihv1[4] ^ ctx->ihv2[4]))))
 					{
-						sha1_compression_W(ctx->ihv, ctx->m1);
-						sha1_compression_W(ctx->ihv, ctx->m1);
-					}
+						ctx->found_collision = 1;
+
+						if (ctx->safe_hash)
+						{
+							sha1_compression_W(ctx->ihv, ctx->m1);
+							sha1_compression_W(ctx->ihv, ctx->m1);
+						}
 
-					break;
+						break;
+					}
 				}
 			}
 		}
 	}
 }
 
-
-
-
-
-void swap_bytes(uint32_t val[16])
-{
-	unsigned i;
-	for (i = 0; i < 16; ++i)
-	{
-		val[i] = ((val[i] << 8) & 0xFF00FF00) | ((val[i] >> 8) & 0xFF00FF);
-		val[i] = (val[i] << 16) | (val[i] >> 16);
-	}
-}
-
 void SHA1DCInit(SHA1_CTX* ctx)
 {
-	static const union { unsigned char bytes[4]; uint32_t value; } endianness = { { 0, 1, 2, 3 } };
-	static const uint32_t littleendian = 0x03020100;
 	ctx->total = 0;
 	ctx->ihv[0] = 0x67452301;
 	ctx->ihv[1] = 0xEFCDAB89;
@@ -1033,7 +1669,6 @@ void SHA1DCInit(SHA1_CTX* ctx)
 	ctx->ubc_check = 1;
 	ctx->detect_coll = 1;
 	ctx->reduced_round_coll = 0;
-	ctx->bigendian = (endianness.value != littleendian);
 	ctx->callback = NULL;
 }
 
@@ -1088,8 +1723,6 @@ void SHA1DCUpdate(SHA1_CTX* ctx, const char* buf, size_t len)
 	{
 		ctx->total += fill;
 		memcpy(ctx->buffer + left, buf, fill);
-		if (!ctx->bigendian)
-			swap_bytes((uint32_t*)(ctx->buffer));
 		sha1_process(ctx, (uint32_t*)(ctx->buffer));
 		buf += fill;
 		len -= fill;
@@ -1098,14 +1731,7 @@ void SHA1DCUpdate(SHA1_CTX* ctx, const char* buf, size_t len)
 	while (len >= 64)
 	{
 		ctx->total += 64;
-		if (!ctx->bigendian)
-		{
-			memcpy(ctx->buffer, buf, 64);
-			swap_bytes((uint32_t*)(ctx->buffer));
-			sha1_process(ctx, (uint32_t*)(ctx->buffer));
-		}
-		else
-			sha1_process(ctx, (uint32_t*)(buf));
+		sha1_process(ctx, (uint32_t*)(buf));
 		buf += 64;
 		len -= 64;
 	}
@@ -1141,8 +1767,6 @@ int SHA1DCFinal(unsigned char output[20], SHA1_CTX *ctx)
 	ctx->buffer[61] = (unsigned char)(total >> 16);
 	ctx->buffer[62] = (unsigned char)(total >> 8);
 	ctx->buffer[63] = (unsigned char)(total);
-	if (!ctx->bigendian)
-		swap_bytes((uint32_t*)(ctx->buffer));
 	sha1_process(ctx, (uint32_t*)(ctx->buffer));
 	output[0] = (unsigned char)(ctx->ihv[0] >> 24);
 	output[1] = (unsigned char)(ctx->ihv[0] >> 16);
diff --git a/lib/sha1.h b/lib/sha1.h
index a99bce2..e867724 100644
--- a/lib/sha1.h
+++ b/lib/sha1.h
@@ -5,6 +5,10 @@
 * https://opensource.org/licenses/MIT
 ***/
 
+#if defined(__cplusplus)
+extern "C" {
+#endif
+
 #include <stdint.h>
 
 /* uses SHA-1 message expansion to expand the first 16 words of W[] to 80 words */
@@ -16,7 +20,7 @@ void sha1_compression_W(uint32_t ihv[5], const uint32_t W[80]); */
 
 /* same as sha1_compression_W, but additionally store intermediate states */
 /* only stores states ii (the state between step ii-1 and step ii) when DOSTORESTATEii is defined in ubc_check.h */
-/* void sha1_compression_states(uint32_t ihv[5], const uint32_t W[80], uint32_t states[80][5]); */
+void sha1_compression_states(uint32_t[5], const uint32_t[16], uint32_t[80], uint32_t[80][5]);
 
 /*
 // function type for sha1_recompression_step_T (uint32_t ihvin[5], uint32_t ihvout[5], const uint32_t me2[80], const uint32_t state[5])
@@ -41,7 +45,6 @@ typedef struct {
 	uint64_t total;
 	uint32_t ihv[5];
 	unsigned char buffer[64];
-	int bigendian;
 	int found_collision;
 	int safe_hash;
 	int detect_coll;
@@ -80,7 +83,7 @@ void SHA1DCSetUseUBC(SHA1_CTX*, int);
 
 /* function to disable or enable the use of Collision Detection */
 /* enabled by default */
-void SHA1DCSetUseDetectColl(SHA1_CTX* ctx, int detect_coll);
+void SHA1DCSetUseDetectColl(SHA1_CTX*, int);
 
 /* function to disable or enable the detection of reduced-round SHA-1 collisions */
 /* disabled by default */
@@ -95,4 +98,8 @@ void SHA1DCUpdate(SHA1_CTX*, const char*, size_t);
 
 /* obtain SHA-1 hash from SHA-1 context */
 /* returns: 0 = no collision detected, otherwise = collision found => warn user for active attack */
-int  SHA1DCFinal(unsigned char[20], SHA1_CTX*);
+int  SHA1DCFinal(unsigned char[20], SHA1_CTX*); 
+
+#if defined(__cplusplus)
+}
+#endif
diff --git a/lib/ubc_check.h b/lib/ubc_check.h
index 88961b9..b349bed 100644
--- a/lib/ubc_check.h
+++ b/lib/ubc_check.h
@@ -23,6 +23,10 @@
 #ifndef UBC_CHECK_H
 #define UBC_CHECK_H
 
+#if defined(__cplusplus)
+extern "C" {
+#endif
+
 #include <stdint.h>
 
 #define DVMASKSIZE 1
@@ -33,5 +37,10 @@ void ubc_check(const uint32_t W[80], uint32_t dvmask[DVMASKSIZE]);
 #define DOSTORESTATE58
 #define DOSTORESTATE65
 
+#define CHECK_DVMASK(_DVMASK) (0 != _DVMASK[0])
+
+#if defined(__cplusplus)
+}
+#endif
 
 #endif /* UBC_CHECK_H */
diff --git a/src/main.c b/src/main.c
index e0c382e..c671e8b 100644
--- a/src/main.c
+++ b/src/main.c
@@ -19,7 +19,7 @@ int main(int argc, char** argv)
 	char buffer[65536];
 	size_t size;
 	SHA1_CTX ctx2;
-	int i,j;
+	int i,j,foundcollision;
 
 	if (argc < 2)
 	{
@@ -62,14 +62,14 @@ int main(int argc, char** argv)
 			return 1;
 		}
 
-		SHA1DCFinal(hash2,&ctx2);
+		foundcollision = SHA1DCFinal(hash2,&ctx2);
 
 		for (j = 0; j < 20; ++j)
 		{
 			sprintf(buffer+(j*2), "%02x", hash2[j]);
 		}
 		buffer[20*2] = 0;
-		if (ctx2.found_collision)
+		if (foundcollision)
 		{
 			printf("%s *coll* %s\n", buffer, argv[i]);
 		}