diff --git a/branch_predict_test/Makefile b/branch_predict_test/Makefile
index 0aab384..23c6bed 100644
--- a/branch_predict_test/Makefile
+++ b/branch_predict_test/Makefile
@@ -1,2 +1,2 @@
 build: branch_predict.c
-	gcc branch_predict.c -O2 -o branch_predict.exe
+	gcc branch_predict.c -O2 -lssl -lcrypto -o branch_predict.exe
diff --git a/branch_predict_test/branch_predict b/branch_predict_test/branch_predict
deleted file mode 100755
index e109078..0000000
Binary files a/branch_predict_test/branch_predict and /dev/null differ
diff --git a/branch_predict_test/branch_predict.c b/branch_predict_test/branch_predict.c
index 10e3d20..47ceebf 100644
--- a/branch_predict_test/branch_predict.c
+++ b/branch_predict_test/branch_predict.c
@@ -3,6 +3,11 @@
 #include<string.h>
 #include<time.h>
 
+//////////
+#include <openssl/sha.h>
+#include <openssl/bio.h>
+/////////
+
 /*
  * range of the chars in the randomly generated string
  *
@@ -11,8 +16,13 @@
  *
  */
 
-#define CHAR_START 33
-#define CHAR_END   127
+#define CHAR_START '1'
+#define CHAR_END   '9'
+
+//#define MEASURE_FUNC string_bit_count
+//#define MEASURE_FUNC string_bit_count2
+//#define MEASURE_FUNC string_bit_count3
+#define MEASURE_FUNC   sha1_int_from_string
 
 /*
  * returns dynamically allocated random string
@@ -54,6 +64,9 @@ char** read_strings(const char* fileName,  size_t* nRead);
  * count set bits in string s
  */
 int string_bit_count(char* s);
+int string_bit_count2(const char* s);
+int string_bit_count3(const char* s);
+int sha1_int_from_string(const char* s);
 
 /*
  * returns malloced memory of size memSize
@@ -66,6 +79,9 @@ int string_sort_func(const void* a, const void* b);
 
 void usage_and_exit();
 
+#define PRE_STR_HELPER(token) #token
+#define PRE_STR(token) PRE_STR_HELPER(token) 
+
 void usage_and_exit() {
 		printf("usage\n");
 		printf("<prog> measure <filename>\n"); 
@@ -96,10 +112,11 @@ int main(int argc, char* argv[])
 		unsigned long long counter = 0;
 		clock_t t1, t0 = clock();
 		for(; *p; ++p) {
-			counter += string_bit_count(*p);
+			counter += MEASURE_FUNC(*p);
 		}
 		t1 = clock();
 		printf("measure file: <%s>\n", argv[2]);
+		printf("measure function: <%s>\n", PRE_STR(MEASURE_FUNC));
 		printf("counter = %llu\n", counter);
 		printf("time = %lf ms\n", (t1 - t0) / (double) CLOCKS_PER_SEC * 1000.0);
 
@@ -187,6 +204,25 @@ int string_bit_count(char* s) {
 	//printf("count = %d\n", count);
 	return count;
 }
+int string_bit_count3(const char* s) {
+	static const unsigned char lookup[] ={0, 1, 1, 2, 1, 2, 2, 3, 1, 2, 2, 3, 2, 3, 3, 4, 1, 2, 2, 3, 2, 3, 3, 4, 2, 3, 3, 4, 3, 4, 4, 5, 1, 2, 2, 3, 2, 3, 3, 4, 2, 3, 3, 4, 3, 4, 4, 5, 2, 3, 3, 4, 3, 4, 4, 5, 3, 4, 4, 5, 4, 5, 5, 6, 1, 2, 2, 3, 2, 3, 3, 4, 2, 3, 3, 4, 3, 4, 4, 5, 2, 3, 3, 4, 3, 4, 4, 5, 3, 4, 4, 5, 4, 5, 5, 6, 2, 3, 3, 4, 3, 4, 4, 5, 3, 4, 4, 5, 4, 5, 5, 6, 3, 4, 4, 5, 4, 5, 5, 6, 4, 5, 5, 6, 5, 6, 6, 7, 1, 2, 2, 3, 2, 3, 3, 4, 2, 3, 3, 4, 3, 4, 4, 5, 2, 3, 3, 4, 3, 4, 4, 5, 3, 4, 4, 5, 4, 5, 5, 6, 2, 3, 3, 4, 3, 4, 4, 5, 3, 4, 4, 5, 4, 5, 5, 6, 3, 4, 4, 5, 4, 5, 5, 6, 4, 5, 5, 6, 5, 6, 6, 7, 2, 3, 3, 4, 3, 4, 4, 5, 3, 4, 4, 5, 4, 5, 5, 6, 3, 4, 4, 5, 4, 5, 5, 6, 4, 5, 5, 6, 5, 6, 6, 7, 3, 4, 4, 5, 4, 5, 5, 6, 4, 5, 5, 6, 5, 6, 6, 7, 4, 5, 5, 6, 5, 6, 6, 7, 5, 6, 6, 7, 6, 7, 7, 8};
+	int len = strlen(s);
+	int count = 0;
+	for(int i=0; i<len; ++i) {
+		count += lookup[s[i]];
+	}
+	return count;
+}
+int string_bit_count2(const char* s) {
+	static const unsigned char lookup[] ={0, 1, 1, 2, 1, 2, 2, 3, 1, 2, 2, 3, 2, 3, 3, 4, 1, 2, 2, 3, 2, 3, 3, 4, 2, 3, 3, 4, 3, 4, 4, 5, 1, 2, 2, 3, 2, 3, 3, 4, 2, 3, 3, 4, 3, 4, 4, 5, 2, 3, 3, 4, 3, 4, 4, 5, 3, 4, 4, 5, 4, 5, 5, 6, 1, 2, 2, 3, 2, 3, 3, 4, 2, 3, 3, 4, 3, 4, 4, 5, 2, 3, 3, 4, 3, 4, 4, 5, 3, 4, 4, 5, 4, 5, 5, 6, 2, 3, 3, 4, 3, 4, 4, 5, 3, 4, 4, 5, 4, 5, 5, 6, 3, 4, 4, 5, 4, 5, 5, 6, 4, 5, 5, 6, 5, 6, 6, 7, 1, 2, 2, 3, 2, 3, 3, 4, 2, 3, 3, 4, 3, 4, 4, 5, 2, 3, 3, 4, 3, 4, 4, 5, 3, 4, 4, 5, 4, 5, 5, 6, 2, 3, 3, 4, 3, 4, 4, 5, 3, 4, 4, 5, 4, 5, 5, 6, 3, 4, 4, 5, 4, 5, 5, 6, 4, 5, 5, 6, 5, 6, 6, 7, 2, 3, 3, 4, 3, 4, 4, 5, 3, 4, 4, 5, 4, 5, 5, 6, 3, 4, 4, 5, 4, 5, 5, 6, 4, 5, 5, 6, 5, 6, 6, 7, 3, 4, 4, 5, 4, 5, 5, 6, 4, 5, 5, 6, 5, 6, 6, 7, 4, 5, 5, 6, 5, 6, 6, 7, 5, 6, 6, 7, 6, 7, 7, 8};
+	int count = 0;
+	const char* p = s;
+	for(; *p; ++p) {
+		count += lookup[*p];
+	}
+	return count;
+}
+
 int string_sort_func(const void* a, const void* b) {
 	 char* sa = *((char**) a);
 	 char* sb = *((char**) b);
@@ -225,3 +261,16 @@ char** read_strings(const char* fileName, size_t* nRead) {
 	return out_array;
 
 }
+
+int sha1_int_from_string(const char* s) {
+        SHA_CTX c;
+        SHA1_Init(&c);
+        char sha1_bytes[20];
+        SHA1_Update(&c, s, strlen(s));
+        SHA1_Final(sha1_bytes, &c);
+	int count = 0;
+	for(int i=0; i<20; ++i) {
+		count += sha1_bytes[i];
+	}
+	return count;
+}
diff --git a/branch_predict_test/test.sh b/branch_predict_test/test.sh
index 0501f33..887a8fe 100644
--- a/branch_predict_test/test.sh
+++ b/branch_predict_test/test.sh
@@ -1,7 +1,7 @@
-./branch_predict generate 5000000 10  10 > unsorted_sample01.txt
-./branch_predict sort unsorted_sample01.txt  > issorted_sample01.txt
-echo "head of unsorted_sample01.txt" >> output.txt
+./branch_predict.exe generate 5000000 4  4 > unsorted_sample01.txt
+./branch_predict.exe sort unsorted_sample01.txt  > issorted_sample01.txt
+echo -e "\nhead of unsorted_sample01.txt" >> output.txt
 head unsorted_sample01.txt >> output.txt
-echo "\n" >> output.txt
-./branch_predict measure unsorted_sample01.txt >> output.txt
-./branch_predict measure issorted_sample01.txt >> output.txt
+echo -e "\n" >> output.txt
+./branch_predict.exe measure unsorted_sample01.txt >> output.txt
+./branch_predict.exe measure issorted_sample01.txt >> output.txt