diff --git a/appdata/BLES02152.ps3savepatch b/appdata/BLES02152.ps3savepatch
new file mode 100644
index 0000000..18a8feb
--- /dev/null
+++ b/appdata/BLES02152.ps3savepatch
@@ -0,0 +1,82 @@
+; "Tales of Zestiria"
+; BLES02152
+
+:SAVE
+
+[999999999 Gald]
+200001D4 3B9AC9FF
+
+[Sorey LV 200]
+2001F3DC 000000C8
+
+[Super Soray code]
+2001F440 0000270F
+2001F44C 0000270F
+2001F450 0000270F
+2001F454 0000270F
+2001F458 0000270F
+2001F45C 0000270F
+
+[Super Rose code]
+20027440 0000270F
+2002744C 0000270F
+20027450 0000270F
+20027454 0000270F
+20027458 0000270F
+2002745C 0000270F
+
+[Super Mikurio code]
+2002F440 0000270F
+2002F44C 0000270F
+2002F450 0000270F
+2002F454 0000270F
+2002F458 0000270F
+2002F45C 0000270F
+
+[Lyra Super code]
+20037440 0000270F
+2003744C 0000270F
+20037450 0000270F
+20037454 0000270F
+20037458 0000270F
+2003745C 0000270F
+
+[Super Edna code]
+2003F440 0000270F
+2003F44C 0000270F
+2003F450 0000270F
+2003F454 0000270F
+2003F458 0000270F
+2003F45C 0000270F
+
+[Super Zabida code]
+20047440 0000270F
+2004744C 0000270F
+20047450 0000270F
+20047454 0000270F
+20047458 0000270F
+2004745C 0000270F
+
+[Super Alisha code]
+2004F440 0000270F
+2004F44C 0000270F
+2004F450 0000270F
+2004F454 0000270F
+2004F458 0000270F
+2004F45C 0000270F
+
+[Super Dezeru code]
+20057440 0000270F
+2005744C 0000270F
+20057450 0000270F
+20057454 0000270F
+20057458 0000270F
+2005745C 0000270F
+
+; custom checksum
+; by bucanero
+[Update Custom Checksum (Required)]
+; hash len 637440 bytes
+set range:0x01D0,0x9BBCF
+set [hash]:toz_checksum
+write at 0x0C:[hash]
diff --git a/appdata/BLUS31533.ps3savepatch b/appdata/BLUS31533.ps3savepatch
new file mode 100644
index 0000000..c0cc1fe
--- /dev/null
+++ b/appdata/BLUS31533.ps3savepatch
@@ -0,0 +1,82 @@
+; "Tales of Zestiria"
+; BLUS31533
+
+:SAVE
+
+[999999999 Gald]
+200001D4 3B9AC9FF
+
+[Sorey LV 200]
+2001F3DC 000000C8
+
+[Super Soray code]
+2001F440 0000270F
+2001F44C 0000270F
+2001F450 0000270F
+2001F454 0000270F
+2001F458 0000270F
+2001F45C 0000270F
+
+[Super Rose code]
+20027440 0000270F
+2002744C 0000270F
+20027450 0000270F
+20027454 0000270F
+20027458 0000270F
+2002745C 0000270F
+
+[Super Mikurio code]
+2002F440 0000270F
+2002F44C 0000270F
+2002F450 0000270F
+2002F454 0000270F
+2002F458 0000270F
+2002F45C 0000270F
+
+[Lyra Super code]
+20037440 0000270F
+2003744C 0000270F
+20037450 0000270F
+20037454 0000270F
+20037458 0000270F
+2003745C 0000270F
+
+[Super Edna code]
+2003F440 0000270F
+2003F44C 0000270F
+2003F450 0000270F
+2003F454 0000270F
+2003F458 0000270F
+2003F45C 0000270F
+
+[Super Zabida code]
+20047440 0000270F
+2004744C 0000270F
+20047450 0000270F
+20047454 0000270F
+20047458 0000270F
+2004745C 0000270F
+
+[Super Alisha code]
+2004F440 0000270F
+2004F44C 0000270F
+2004F450 0000270F
+2004F454 0000270F
+2004F458 0000270F
+2004F45C 0000270F
+
+[Super Dezeru code]
+20057440 0000270F
+2005744C 0000270F
+20057450 0000270F
+20057454 0000270F
+20057458 0000270F
+2005745C 0000270F
+
+; custom checksum
+; by bucanero
+[Update Custom Checksum (Required)]
+; hash len 637440 bytes
+set range:0x01D0,0x9BBCF
+set [hash]:toz_checksum
+write at 0x0C:[hash]
diff --git a/appdata/NPUB31675.ps3savepatch b/appdata/NPUB31675.ps3savepatch
new file mode 100644
index 0000000..7a43115
--- /dev/null
+++ b/appdata/NPUB31675.ps3savepatch
@@ -0,0 +1,82 @@
+; "Tales of Zestiria"
+; NPUB31675
+
+:SAVE
+
+[999999999 Gald]
+200001D4 3B9AC9FF
+
+[Sorey LV 200]
+2001F3DC 000000C8
+
+[Super Soray code]
+2001F440 0000270F
+2001F44C 0000270F
+2001F450 0000270F
+2001F454 0000270F
+2001F458 0000270F
+2001F45C 0000270F
+
+[Super Rose code]
+20027440 0000270F
+2002744C 0000270F
+20027450 0000270F
+20027454 0000270F
+20027458 0000270F
+2002745C 0000270F
+
+[Super Mikurio code]
+2002F440 0000270F
+2002F44C 0000270F
+2002F450 0000270F
+2002F454 0000270F
+2002F458 0000270F
+2002F45C 0000270F
+
+[Lyra Super code]
+20037440 0000270F
+2003744C 0000270F
+20037450 0000270F
+20037454 0000270F
+20037458 0000270F
+2003745C 0000270F
+
+[Super Edna code]
+2003F440 0000270F
+2003F44C 0000270F
+2003F450 0000270F
+2003F454 0000270F
+2003F458 0000270F
+2003F45C 0000270F
+
+[Super Zabida code]
+20047440 0000270F
+2004744C 0000270F
+20047450 0000270F
+20047454 0000270F
+20047458 0000270F
+2004745C 0000270F
+
+[Super Alisha code]
+2004F440 0000270F
+2004F44C 0000270F
+2004F450 0000270F
+2004F454 0000270F
+2004F458 0000270F
+2004F45C 0000270F
+
+[Super Dezeru code]
+20057440 0000270F
+2005744C 0000270F
+20057450 0000270F
+20057454 0000270F
+20057458 0000270F
+2005745C 0000270F
+
+; custom checksum
+; by bucanero
+[Update Custom Checksum (Required)]
+; hash len 637440 bytes
+set range:0x01D0,0x9BBCF
+set [hash]:toz_checksum
+write at 0x0C:[hash]
diff --git a/include/crc_util.h b/include/crc_util.h
index 53c9197..d19d869 100644
--- a/include/crc_util.h
+++ b/include/crc_util.h
@@ -159,17 +159,24 @@ int sw4_hash(const uint8_t* data, uint32_t size, uint32_t* crcs);
 /**
  * This function makes MGS2 hash calculation on Length data bytes
  *
- * RETURN VALUE: 32 bit result array of CRC calculation
+ * RETURN VALUE: 32 bit result of CRC calculation
  */
 int mgs2_hash(const uint8_t* data, uint32_t len);
 
 /**
  * This function makes Tears to Tiara 2 hash calculation on Length data bytes
  *
- * RETURN VALUE: 32 bit result array of CRC calculation
+ * RETURN VALUE: 32 bit result of CRC calculation
  */
 uint32_t tiara2_hash(const uint8_t* data, uint32_t len);
 
+/**
+ * This function makes Tales of Zestiria hash calculation on Length data bytes
+ *
+ * RETURN VALUE: 20 byte result array of SHA1 calculation
+ */
+void toz_hash(const uint8_t* data, uint32_t len, uint8_t* sha_hash);
+
 #ifdef __cplusplus
 }
 #endif
diff --git a/source/crc_util.c b/source/crc_util.c
index 1f3c3c6..577b843 100644
--- a/source/crc_util.c
+++ b/source/crc_util.c
@@ -16,6 +16,7 @@
  **********************************************************************/
 
 #include <stdio.h>
+#include <polarssl/sha1.h>
 #include "crc_util.h"
 
 #define SW4_OFF_1      0x00004
@@ -313,6 +314,29 @@ uint32_t tiara2_hash(const uint8_t* data, uint32_t len)
 	return (crc);
 }
 
+void _toz_sha1(const uint8_t* data, uint32_t length, const char* key, uint8_t* hash_out)
+{
+    sha1_context ctx;
+
+    sha1_starts(&ctx);
+    sha1_update(&ctx, data, length);
+    sha1_update(&ctx, (const unsigned char*)key, strlen(key));
+    sha1_finish(&ctx, hash_out);
+}
+
+// https://github.com/bucanero/ps3-save-decrypters/blob/master/toz-checksum-fixer/samples/Crypto.txt
+void toz_hash(const uint8_t* data, uint32_t len, uint8_t* hash)
+{
+    const char array[8][4] = {"SRA", "ROS", "MIC", "LAI", "EDN", "DEZ", "ZAB", "ALI"};
+
+    _toz_sha1(data, len, "TO12", hash);
+
+    for (int i = 0; i < 100; i++)
+        _toz_sha1(hash, 20, array[i % 8], hash);
+
+    return;
+}
+
 uint16_t adler16(const uint8_t *data, size_t len)
 /* 
     where data is the location of the data in physical memory and 
diff --git a/source/patches.c b/source/patches.c
index 81c0603..85bf7af 100644
--- a/source/patches.c
+++ b/source/patches.c
@@ -1003,6 +1003,19 @@ int apply_bsd_patch_code(const char* filepath, code_entry_t* code)
 					LOG("len %d SW4 HASH = %X %X %X %X", len, hash[0], hash[1], hash[2], hash[3]);
 				}
 
+				// set [*]:toz_checksum*
+				else if (wildcard_match_icase(line, "toz_checksum*"))
+				{
+					u8* start = (u8*)data + range_start;
+					len = range_end - range_start;
+
+					var->len = BSD_VAR_SHA1;
+					var->data = malloc(var->len);
+					toz_hash(start, len, var->data);
+
+					LOG("len %d TOZ SHA1 HASH = %llx%llx%x", len, ((uint64_t*)var->data)[0], ((uint64_t*)var->data)[1], ((uint32_t*)var->data)[4]);
+				}
+
 				// set [*]:tiara2_checksum*
 				else if (wildcard_match_icase(line, "tiara2_checksum*"))
 				{