diff --git a/Makefile b/Makefile
index db41f018..932c9cd1 100644
--- a/Makefile
+++ b/Makefile
@@ -27,6 +27,13 @@ LIB_DIR :=						$(ROOT)/lib/
 TST_DIR :=						$(ROOT)/t/
 
 
+# project headers
+MD5_HEADER :=					$(INC_DIR)/ft_md5.h
+SHA_HEADER :=					$(INC_DIR)/ft_sha.h
+SSL_HEADER :=					$(INC_DIR)/ft_ssl.h
+HEADERS :=						$(MD5_HEADER)		\
+								$(SHA_HEADER)		\
+								$(SSL_HEADER)
 # libraries
 
 LIBFT_DIR :=					$(LIB_DIR)libft/
@@ -39,7 +46,12 @@ MUINUT_INC :=					-I $(MUINUT_DIR)
 
 # project source files
 
-MD5_SRC =						ft_md5_init.c				\
+MD5_SRC =						ft_md5.c 					\
+								ft_md5_stdin.c 				\
+								ft_md5_string.c 			\
+								ft_md5_file.c 			\
+								ft_md5_print.c				\
+								ft_md5_init.c				\
 								ft_md5_update.c				\
 								ft_md5_transform.c			\
 								ft_md5_decode.c				\
@@ -69,11 +81,6 @@ BASE64_SRC =					ft_base64_init.c 			\
 								ft_base64_encode.c
 
 SRC =							main.c						\
-								ft_ssl_init.c				\
-								ft_ssl_md5_file.c			\
-								ft_ssl_md5_stdin.c			\
-								ft_ssl_md5_string.c			\
-								ft_ssl_md5_print.c			\
 								ft_ssl_sha256_file.c 		\
 								ft_ssl_sha256_stdin.c 		\
 								ft_ssl_sha256_string.c		\
@@ -165,7 +172,7 @@ $(TEST_OBJ) $(OBJ): | $(OBJ_DIR)
 $(OBJ_DIR):
 	mkdir $(OBJ_DIR)
 
-$(OBJ_DIR)%.o: %.c
+$(OBJ_DIR)%.o: %.c $(HEADERS)
 	$(CC) -c $< -o $@ $(CC_FLAGS) $(HEADER_FLAGS)
 
 $(LIBFT):
diff --git a/inc/ft_md5.h b/inc/ft_md5.h
index 6d5bf038..de36b642 100644
--- a/inc/ft_md5.h
+++ b/inc/ft_md5.h
@@ -15,6 +15,7 @@
 
 # include <stdint.h>
 
+# define FT_MD5_READ_BLOCK_SIZE 1024
 # define FT_MD5_BLOCK_SIZE 64
 # define FT_MD5_WORDS_COUNT 16
 # define FT_MD5_MESSAGE_LENGTH_BYTE 8
@@ -91,26 +92,93 @@ typedef struct			s_md5_intr_registers
 	t_byte4				d;
 }						t_md5_intr_registers;
 
-void					ft_md5_init(t_md5_ctx *ctx);
-void					ft_md5_update(t_md5_ctx *ctx, t_byte1 *chunk,
-							t_byte8 len);
-void					ft_md5_transform(t_md5_ctx *ctx,
-							t_byte1 blck[FT_MD5_BLOCK_SIZE]);
-void					ft_md5_final(t_byte1 digest[FT_MD5_DIGEST_LENGTH_BYTE],
-							t_md5_ctx *ctx);
-void					ft_md5_decode(t_byte4 w[FT_MD5_WORDS_COUNT],
-							t_byte1 b[FT_MD5_BLOCK_SIZE]);
-void					ft_md5_encode_len(
-							t_byte1 bits[FT_MD5_MESSAGE_LENGTH_BYTE],
-							t_byte8 bit_len);
-void					ft_md5_encode_register(t_byte1 *digest_part,
-							t_byte4 reg);
-void					ft_md5_padding(t_byte1 padding[FT_MD5_BLOCK_SIZE]);
-void					ft_md5_digest_string(
-							t_byte1 digest[FT_MD5_DIGEST_LENGTH_BYTE],
-							t_byte1 string[FT_MD5_STRING_SIZE_BYTE]);
-void					ft_md5_string(t_byte1 *str);
-void					ft_md5_file(t_byte1 *filename);
-void					ft_md5_filter(void);
+typedef struct			s_md5_flags
+{
+	int					quiet;
+	int					reverse;
+	int					print_stdin;
+	int					something_printed;
+}						t_md5_flags;
+
+void					ft_md5
+(
+						int argc,
+						char **argv
+);
+
+void					ft_md5_init
+(
+						t_md5_ctx *ctx
+);
+
+void					ft_md5_update
+(
+						t_md5_ctx *ctx, t_byte1 *chunk,
+						t_byte8 len
+);
+
+void					ft_md5_transform
+(
+						t_md5_ctx *ctx,
+						t_byte1 blck[FT_MD5_BLOCK_SIZE]
+);
+void					ft_md5_final
+(
+						t_byte1 digest[FT_MD5_DIGEST_LENGTH_BYTE],
+						t_md5_ctx *ctx
+);
+
+void					ft_md5_decode
+(
+						t_byte4 w[FT_MD5_WORDS_COUNT],
+						t_byte1 b[FT_MD5_BLOCK_SIZE]
+);
+
+void					ft_md5_encode_len
+(
+						t_byte1 bits[FT_MD5_MESSAGE_LENGTH_BYTE],
+						t_byte8 bit_len
+);
+
+void					ft_md5_encode_register
+(
+						t_byte1 *digest_part,
+						t_byte4 reg
+);
+
+void					ft_md5_padding
+(
+						t_byte1 padding[FT_MD5_BLOCK_SIZE]
+);
+
+void					ft_md5_digest_string
+(
+						t_byte1 digest[FT_MD5_DIGEST_LENGTH_BYTE],
+						t_byte1 string[FT_MD5_STRING_SIZE_BYTE]
+);
+
+void					ft_md5_string
+(
+						const char *message,
+						t_md5_flags *flags
+);
+
+void					ft_md5_file
+(
+						const char *filename,
+						t_md5_flags *flags
+);
+
+void					ft_md5_stdin
+(
+						t_md5_flags *flags
+);
+
+void					ft_md5_print
+(
+						t_byte1 *message,
+						t_byte1 *digest,
+						t_md5_flags *flags
+);
 
 #endif
diff --git a/inc/ft_ssl.h b/inc/ft_ssl.h
index cca128af..6cead32d 100644
--- a/inc/ft_ssl.h
+++ b/inc/ft_ssl.h
@@ -18,13 +18,6 @@
 # define FT_SSL_ALGS_COUNT 3
 # define FT_SSL_BUFFER_SIZE 1024
 
-typedef enum			e_alg_type
-{
-	DIGEST,
-	CIPHER,
-	END
-}						t_alg_type;
-
 typedef struct s_ft_ssl	t_ft_ssl;
 
 typedef void			(*t_process_stdin)(t_ft_ssl *ft_ssl);
@@ -33,6 +26,8 @@ typedef void			(*t_process_string)(const char *string,
 typedef void			(*t_process_file)(const char *filename,
 							t_ft_ssl *ft_ssl);
 
+typedef void			(*t_alg_function)(int argc, char **argv);
+
 typedef struct			s_flags
 {
 	int					quiet;
@@ -44,10 +39,7 @@ typedef struct			s_flags
 typedef struct			s_alorithm
 {
 	const char			*name;
-	t_process_stdin		process_stdin;
-	t_process_file		process_file;
-	t_process_string	process_string;
-	t_alg_type			type;
+	t_alg_function		function;
 }						t_algorithm;
 
 struct					s_ft_ssl
@@ -56,11 +48,10 @@ struct					s_ft_ssl
 	t_process_stdin		process_stdin;
 	t_process_file		process_file;
 	t_process_string	process_string;
-	t_alg_type			type;
 };
 
 void					ft_ssl_usage(void);
-void					ft_ssl_init(char *alg, t_ft_ssl *ft_ssl);
+void					ft_ssl_init(int argc, char **argv);
 
 void					ft_ssl_md5_stdin(t_ft_ssl *ft_ssl);
 void					ft_ssl_md5_string(const char *strng,
diff --git a/src/ft_ssl_init.c b/src/ft_ssl_init.c
deleted file mode 100644
index 5ebc3cde..00000000
--- a/src/ft_ssl_init.c
+++ /dev/null
@@ -1,80 +0,0 @@
-/* ************************************************************************** */
-/*                                                                            */
-/*                                                        :::      ::::::::   */
-/*   ft_ssl_init.c                                      :+:      :+:    :+:   */
-/*                                                    +:+ +:+         +:+     */
-/*   By: gtertysh <marvin@42.fr>                    +#+  +:+       +#+        */
-/*                                                +#+#+#+#+#+   +#+           */
-/*   Created: 2018/10/23 20:21:21 by gtertysh          #+#    #+#             */
-/*   Updated: 2018/10/23 20:28:00 by gtertysh         ###   ########.fr       */
-/*                                                                            */
-/* ************************************************************************** */
-
-#include "ft_ssl.h"
-#include "libft.h"
-
-t_algorithm g_algorithms[] = {
-	{
-		"md5",
-		ft_ssl_md5_stdin,
-		ft_ssl_md5_file,
-		ft_ssl_md5_string,
-		DIGEST
-	},
-	{
-		"sha256",
-		ft_ssl_sha256_stdin,
-		ft_ssl_sha256_file,
-		ft_ssl_sha256_string,
-		DIGEST
-	},
-	{
-		"sha224",
-		ft_ssl_sha224_stdin,
-		ft_ssl_sha224_file,
-		ft_ssl_sha224_string,
-		DIGEST
-	},
-	{NULL, NULL, NULL, NULL, END}
-};
-
-static void			init_flags(t_ft_ssl *ft_ssl)
-{
-	ft_ssl->flags.print_stdin = 0;
-	ft_ssl->flags.quiet = 0;
-	ft_ssl->flags.reverse = 0;
-	ft_ssl->flags.something_printed = 0;
-}
-
-static void			set_algorithm(t_algorithm *alg, t_ft_ssl *ft_ssl)
-{
-	ft_ssl->process_file = alg->process_file;
-	ft_ssl->process_string = alg->process_string;
-	ft_ssl->process_stdin = alg->process_stdin;
-}
-
-void				ft_ssl_init(char *alg_name, t_ft_ssl *ft_ssl)
-{
-	int			i;
-	t_algorithm	*alg;
-	t_algorithm	*alg_walker;
-
-	i = 0;
-	alg = 0;
-	init_flags(ft_ssl);
-	alg_walker = g_algorithms;
-	while (alg_walker)
-	{
-		if (alg_walker[i].type == END)
-			break ;
-		if (ft_strcmp(alg_name, alg_walker[i].name) == 0)
-		{
-			alg = &alg_walker[i];
-			break ;
-		}
-		i++;
-	}
-	if (!alg)
-		ft_ssl_usage();
-	set_algorithm(alg, ft_ssl);
-}
diff --git a/src/ft_ssl_usage.c b/src/ft_ssl_usage.c
index 37141119..69c8624d 100644
--- a/src/ft_ssl_usage.c
+++ b/src/ft_ssl_usage.c
@@ -15,13 +15,12 @@
 
 void	ft_ssl_usage(void)
 {
+	ft_putstr("\e[1;1H\e[2J");
 	ft_putstr("Message Digest commands:\n");
 	ft_putstr("md5\nsha256\nsha224\n\n");
-	ft_putstr("Digest command usage:\n");
-	ft_putstr("ft_ssl digest [-p|-q|-r] [[-s string...] [file...]]\n\n");
 	ft_putstr("Cipher commands:\n");
-	ft_putstr("base64\n");
-	ft_putstr("Cipher command usage:\n");
-	ft_putstr("ft_ssl cipher [-p|-q|-r] [[-s string...] [file...]]\n\n");
+	ft_putstr("base64\n\n");
+	ft_putstr("To get help for specific command:\n");
+	ft_putstr("ft_ssl command -h\n\n");
 	exit(1);
 }
diff --git a/src/main.c b/src/main.c
index 7fb89a87..01cd7ecd 100644
--- a/src/main.c
+++ b/src/main.c
@@ -11,68 +11,32 @@
 /* ************************************************************************** */
 
 #include "ft_ssl.h"
+#include "ft_md5.h"
 #include "libft.h"
 
-static int	find_flag(const char *expected, char *real)
-{
-	return (ft_strcmp(real, expected) == 0);
-}
-
-static int	process_flags(int argc, char **argv, t_ft_ssl *ft_ssl)
-{
-	int		i;
-
-	i = 2;
-	while (i < argc)
+t_algorithm g_algorithms[] = {
 	{
-		if (find_flag("-r", argv[i]))
-			ft_ssl->flags.reverse = 1;
-		else if (find_flag("-q", argv[i]))
-			ft_ssl->flags.quiet = 1;
-		else if (find_flag("-p", argv[i]))
-			ft_ssl->flags.print_stdin = 1;
-		else
-			break ;
-		i++;
-	}
-	return (i);
-}
-
-static void	process_strings_and_files
-(
-	int i,
-	int argc,
-	char **argv,
-	t_ft_ssl *ft_ssl
-)
-{
-	while (i < argc)
-	{
-		if (find_flag("-s", argv[i]))
-		{
-			if (i + 1 >= argc)
-				ft_ssl_usage();
-			ft_ssl->process_string(argv[++i], ft_ssl);
-			i++;
-		}
-		else
-			ft_ssl->process_file(argv[i++], ft_ssl);
-	}
-}
+		"md5",
+		ft_md5,
+	},
+	{NULL, NULL}
+};
 
 int			main(int argc, char **argv)
 {
-	t_ft_ssl	ft_ssl;
-	int			i;
+	char			*alg_name;
+	t_algorithm		*alg_walker;
 
+	alg_walker = g_algorithms;
+	alg_name = argv[1];
 	if (argc < 2)
 		ft_ssl_usage();
-	ft_ssl_init(argv[1], &ft_ssl);
-	i = process_flags(argc, argv, &ft_ssl);
-	if (ft_ssl.flags.print_stdin)
-		ft_ssl.process_stdin(&ft_ssl);
-	process_strings_and_files(i, argc, argv, &ft_ssl);
-	if (!ft_ssl.flags.something_printed)
-		ft_ssl.process_stdin(&ft_ssl);
+	while (alg_walker->function)
+	{
+		if (ft_strcmp(alg_walker->name, alg_name) == 0)
+			alg_walker->function(argc, argv);
+		alg_walker++;
+	}
+	ft_ssl_usage();
 	return (0);
 }
diff --git a/src/md5/ft_md5.c b/src/md5/ft_md5.c
new file mode 100644
index 00000000..5c527180
--- /dev/null
+++ b/src/md5/ft_md5.c
@@ -0,0 +1,90 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   ft_md5.c                                           :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: gtertysh <marvin@42.fr>                    +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2019/02/02 22:21:59 by gtertysh          #+#    #+#             */
+/*   Updated: 2019/02/02 22:26:35 by gtertysh         ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include "ft_md5.h"
+#include "libft.h"
+
+static void		ft_md5_usage(void)
+{
+	ft_putstr("MD5 Digest usage:\n");
+	ft_putstr("ft_ssl md5 [-p|-q|-r] [[-s string...] [file...]]\n\n");
+	exit(1);
+}
+
+/*
+** argc and argv are same as in main();
+*/
+
+static void		init_flags(t_md5_flags *flags)
+{
+	flags->quiet = 0;
+	flags->print_stdin = 0;
+	flags->reverse = 0;
+	flags->something_printed = 0;
+}
+
+static int		read_flags(int argc, char **argv, t_md5_flags *flags)
+{
+	int		i;
+
+	i = 2;
+	while (i < argc)
+	{
+		if (ft_strcmp("-r", argv[i]) == 0)
+			flags->reverse = 1;
+		else if (ft_strcmp("-q", argv[i]) == 0)
+			flags->quiet = 1;
+		else if (ft_strcmp("-p", argv[i]) == 0)
+			flags->print_stdin = 1;
+		else
+			break ;
+		i++;
+	}
+	return (i);
+}
+
+static void		process_strings_and_files
+(
+	int i,
+	int argc,
+	char **argv,
+	t_md5_flags *flags
+)
+{
+	while (i < argc)
+	{
+		if (ft_strcmp("-s", argv[i]) == 0)
+		{
+			if (i + 1 >= argc)
+				ft_md5_usage();
+			ft_md5_string(argv[++i], flags);
+			i++;
+		}
+		else
+			ft_md5_file(argv[i++], flags);
+	}
+}
+
+void			ft_md5(int argc, char **argv)
+{
+	int			flags_readed;
+	t_md5_flags	flags;
+
+	init_flags(&flags);
+	flags_readed = read_flags(argc, argv, &flags);
+	if (flags.print_stdin)
+		ft_md5_stdin(&flags);
+	process_strings_and_files(flags_readed, argc, argv, &flags);
+	if (!flags.something_printed)
+		ft_md5_stdin(&flags);
+	exit(0);
+}
diff --git a/src/ft_ssl_md5_file.c b/src/md5/ft_md5_file.c
similarity index 84%
rename from src/ft_ssl_md5_file.c
rename to src/md5/ft_md5_file.c
index effca1d1..657ea308 100644
--- a/src/ft_ssl_md5_file.c
+++ b/src/md5/ft_md5_file.c
@@ -15,25 +15,23 @@
 #include "stdio.h"
 #include "unistd.h"
 #include "libft.h"
-#include "ft_ssl.h"
 
-void	ft_ssl_md5_file(const char *filename, t_ft_ssl *ft_ssl)
+void	ft_md5_file(const char *filename, t_md5_flags *flags)
 {
 	int			fd;
 	int			len;
 	t_byte1		digest[FT_MD5_DIGEST_LENGTH_BYTE];
 	t_md5_ctx	ctx;
-	t_byte1		buf[FT_SSL_BUFFER_SIZE];
+	t_byte1		buf[FT_MD5_READ_BLOCK_SIZE];
 
-	(void)ft_ssl;
 	if ((fd = open(filename, O_RDONLY)) == -1)
 	{
 		perror("ft_ssl");
 		exit(1);
 	}
 	ft_md5_init(&ctx);
-	while ((len = read(fd, buf, FT_SSL_BUFFER_SIZE)) > 0)
+	while ((len = read(fd, buf, FT_MD5_READ_BLOCK_SIZE)) > 0)
 		ft_md5_update(&ctx, buf, len);
 	ft_md5_final(digest, &ctx);
-	ft_ssl_md5_print(filename, digest, ft_ssl);
+	ft_md5_print((t_byte1 *)filename, digest, flags);
 }
diff --git a/src/ft_ssl_md5_print.c b/src/md5/ft_md5_print.c
similarity index 76%
rename from src/ft_ssl_md5_print.c
rename to src/md5/ft_md5_print.c
index 94ad183d..f26bb7e7 100644
--- a/src/ft_ssl_md5_print.c
+++ b/src/md5/ft_md5_print.c
@@ -11,46 +11,45 @@
 /* ************************************************************************** */
 
 #include "ft_md5.h"
-#include "ft_ssl.h"
 #include "libft.h"
 
-static void	print_name(const char *name, int reverse)
+static void	print_name(t_byte1 *name, int reverse)
 {
 	if (reverse)
 	{
 		ft_putstr(" ");
-		ft_putstr(name);
+		ft_putstr((const char *)name);
 	}
 	else
 	{
 		ft_putstr("MD5 (");
-		ft_putstr(name);
+		ft_putstr((const char *)name);
 		ft_putstr(") = ");
 	}
 }
 
-void		ft_ssl_md5_print
+void		ft_md5_print
 (
-	const char *target,
-	unsigned char *digest,
-	t_ft_ssl *ft_ssl
+	t_byte1 *message,
+	t_byte1 *digest,
+	t_md5_flags *flags
 )
 {
 	t_byte1 digest_string[FT_MD5_STRING_SIZE_BYTE];
 
 	ft_md5_digest_string(digest, digest_string);
-	if (target && !ft_ssl->flags.quiet && ft_ssl->flags.reverse)
+	if (message && !flags->quiet && flags->reverse)
 	{
 		ft_putstr((const char *)digest_string);
-		print_name(target, 1);
+		print_name(message, 1);
 	}
-	else if (target && !ft_ssl->flags.quiet)
+	else if (message && !flags->quiet)
 	{
-		print_name(target, 0);
+		print_name(message, 0);
 		ft_putstr((const char *)digest_string);
 	}
 	else
 		ft_putstr((const char *)digest_string);
 	ft_putstr("\n");
-	ft_ssl->flags.something_printed = 1;
+	flags->something_printed = 1;
 }
diff --git a/src/ft_ssl_md5_stdin.c b/src/md5/ft_md5_stdin.c
similarity index 79%
rename from src/ft_ssl_md5_stdin.c
rename to src/md5/ft_md5_stdin.c
index 1d821497..838ed2e6 100644
--- a/src/ft_ssl_md5_stdin.c
+++ b/src/md5/ft_md5_stdin.c
@@ -10,27 +10,26 @@
 /*                                                                            */
 /* ************************************************************************** */
 
-#include "ft_ssl.h"
+#include <fcntl.h>
+#include <stdio.h>
+#include <unistd.h>
+#include <stdlib.h>
 #include "ft_md5.h"
-#include "fcntl.h"
-#include "stdio.h"
-#include "unistd.h"
 
-void	ft_ssl_md5_stdin(t_ft_ssl *ft_ssl)
+void	ft_md5_stdin(t_md5_flags *flags)
 {
 	int			len;
 	t_byte1		digest[FT_MD5_DIGEST_LENGTH_BYTE];
 	t_md5_ctx	ctx;
-	t_byte1		buf[FT_SSL_BUFFER_SIZE];
+	t_byte1		buf[FT_MD5_READ_BLOCK_SIZE];
 
-	(void)ft_ssl;
 	ft_md5_init(&ctx);
-	while ((len = read(0, buf, FT_SSL_BUFFER_SIZE)))
+	while ((len = read(0, buf, FT_MD5_READ_BLOCK_SIZE)))
 	{
-		if (ft_ssl->flags.print_stdin)
+		if (flags->print_stdin)
 			write(1, buf, len);
 		ft_md5_update(&ctx, buf, len);
 	}
 	ft_md5_final(digest, &ctx);
-	ft_ssl_md5_print(NULL, digest, ft_ssl);
+	ft_md5_print(NULL, digest, flags);
 }
diff --git a/src/ft_ssl_md5_string.c b/src/md5/ft_md5_string.c
similarity index 90%
rename from src/ft_ssl_md5_string.c
rename to src/md5/ft_md5_string.c
index 792422cf..5436a109 100644
--- a/src/ft_ssl_md5_string.c
+++ b/src/md5/ft_md5_string.c
@@ -10,14 +10,13 @@
 /*                                                                            */
 /* ************************************************************************** */
 
-#include "ft_ssl.h"
 #include "ft_md5.h"
 #include "fcntl.h"
 #include "stdio.h"
 #include "unistd.h"
 #include "libft.h"
 
-void	ft_ssl_md5_string(const char *str, t_ft_ssl *ft_ssl)
+void	ft_md5_string(const char *str, t_md5_flags *flags)
 {
 	t_byte1		digest[FT_MD5_DIGEST_LENGTH_BYTE];
 	t_md5_ctx	ctx;
@@ -25,5 +24,5 @@ void	ft_ssl_md5_string(const char *str, t_ft_ssl *ft_ssl)
 	ft_md5_init(&ctx);
 	ft_md5_update(&ctx, (unsigned char *)str, ft_strlen((const char *)str));
 	ft_md5_final(digest, &ctx);
-	ft_ssl_md5_print(str, digest, ft_ssl);
+	ft_md5_print((t_byte1 *)str, digest, flags);
 }