diff --git a/makerom/cardinfo.c b/makerom/cardinfo.c
index f2ac692..e9b80a4 100644
--- a/makerom/cardinfo.c
+++ b/makerom/cardinfo.c
@@ -139,8 +139,12 @@ int SetCardInfoBitmask(cardinfo_hdr *hdr, cci_settings *set)
 	}
 	
 	str = set->rsf->CardInfo.CryptoType;
-	if(!str) 
-		bitmask |= 0;//(3*0x40);
+	if(!str) {
+		if(set->options.useExternalSdkCardInfo)
+			bitmask |= (3*0x40);
+		else
+			bitmask |= 0;
+	}
 	else{
 		int val = strtol(str,NULL,10);
 		if(val < 0 || val > 3) {
diff --git a/makerom/crypto.c b/makerom/crypto.c
index 9fd99ee..e83b9f7 100644
--- a/makerom/crypto.c
+++ b/makerom/crypto.c
@@ -153,17 +153,13 @@ u32 GetSigHashLen(u32 sig_type)
 {
 	switch(sig_type){
 		case RSA_4096_SHA1:
-			return 0x14;
-		case RSA_4096_SHA256:
-			return 0x20;
 		case RSA_2048_SHA1:
-			return 0x14;
-		case RSA_2048_SHA256:
-			return 0x20;
 		case ECC_SHA1:
-			return 0x14;
+			return SHA_1_LEN;
+		case RSA_4096_SHA256:
+		case RSA_2048_SHA256:
 		case ECC_SHA256:
-			return 0x20;
+			return SHA_256_LEN;
 	}
 	return 0;
 }
diff --git a/makerom/crypto.h b/makerom/crypto.h
index 617fdc8..95b1ea5 100644
--- a/makerom/crypto.h
+++ b/makerom/crypto.h
@@ -36,6 +36,12 @@ typedef enum
 	CTR_SHA_256,
 } ctr_sha_modes;
 
+typedef enum
+{
+	SHA_1_LEN = 0x14,
+	SHA_256_LEN = 0x20,
+} sha_hash_len;
+
 typedef enum
 {
 	RSA_4096_PUBK = 0,
diff --git a/makerom/romfs_gen.c b/makerom/romfs_gen.c
index 04f81b6..3ad516c 100644
--- a/makerom/romfs_gen.c
+++ b/makerom/romfs_gen.c
@@ -202,9 +202,9 @@ int CalcRomfsSize(romfs_buildctx *ctx)
 	
 	//printf("predict level sizes\n");
 	ctx->level[3].size = romfsHdrSize + ctx->m_dataLen; // data
-	ctx->level[2].size = align(ctx->level[3].size,ROMFS_BLOCK_SIZE) / ROMFS_BLOCK_SIZE * 0x20 ;
-	ctx->level[1].size = align(ctx->level[2].size,ROMFS_BLOCK_SIZE) / ROMFS_BLOCK_SIZE * 0x20 ;
-	ctx->level[0].size = align(ctx->level[1].size,ROMFS_BLOCK_SIZE) / ROMFS_BLOCK_SIZE * 0x20 + align(sizeof(ivfc_hdr),0x10); // hdr
+	ctx->level[2].size = align(ctx->level[3].size,ROMFS_BLOCK_SIZE) / ROMFS_BLOCK_SIZE * SHA_256_LEN ;
+	ctx->level[1].size = align(ctx->level[2].size,ROMFS_BLOCK_SIZE) / ROMFS_BLOCK_SIZE * SHA_256_LEN ;
+	ctx->level[0].size = align(ctx->level[1].size,ROMFS_BLOCK_SIZE) / ROMFS_BLOCK_SIZE * SHA_256_LEN + align(sizeof(ivfc_hdr),0x10); // hdr
 	
 	ctx->romfsHeaderSize = ctx->level[0].size;
 
@@ -320,13 +320,13 @@ void AddDirHashKey(romfs_buildctx *ctx, u32 parent, fs_romfs_char* path, u32 dir
 {
 	u32 hash = CalcPathHash(parent,path,0,fs_u16StrLen(path));
 	u32 index = hash % ctx->m_dirUTableEntry;
-	if(ctx->dirUTable[index] == 0xffffffff) ctx->dirUTable[index] = dirOffset;
+	if(ctx->dirUTable[index] == ROMFS_UNUSED_ENTRY) ctx->dirUTable[index] = dirOffset;
 	else
 	{
 		romfs_direntry * curdir = (romfs_direntry*)(ctx->dirTable + ctx->dirUTable[index]);
 		while(1)
 		{
-			if(*(u32*)curdir->weirdoffset == 0xffffffff)
+			if(*(u32*)curdir->weirdoffset == ROMFS_UNUSED_ENTRY)
 			{
 				*(u32*)curdir->weirdoffset = dirOffset;
 				break;
@@ -343,13 +343,13 @@ void AddFileHashKey(romfs_buildctx *ctx,u32 parent, fs_romfs_char *path, u32 fil
 {
 	u32 hash = CalcPathHash(parent,path,0,fs_u16StrLen(path));
 	u32 index = hash % ctx->m_fileUTableEntry;
-	if(ctx->fileUTable[index] == 0xffffffff) ctx->fileUTable[index] = fileOffset;
+	if(ctx->fileUTable[index] == ROMFS_UNUSED_ENTRY) ctx->fileUTable[index] = fileOffset;
 	else
 	{
 		romfs_fileentry * curfile = (romfs_fileentry*)(ctx->fileTable + ctx->fileUTable[index]);
 		while(1)
 		{
-			if(*(u32*)curfile->weirdoffset == 0xffffffff)
+			if(*(u32*)curfile->weirdoffset == ROMFS_UNUSED_ENTRY)
 			{
 				*(u32*)curfile->weirdoffset = fileOffset;
 				break;
@@ -368,7 +368,7 @@ int AddFileToRomfs(romfs_buildctx *ctx, fs_file *file, u32 parent, u32 sibling)
 	
 	u32_to_u8(entry->parentdiroffset,parent,LE);
 	u32_to_u8(entry->siblingoffset,sibling,LE);	
-	u32_to_u8(entry->weirdoffset,0xffffffff,LE);
+	u32_to_u8(entry->weirdoffset,ROMFS_UNUSED_ENTRY,LE);
 	
 	// Import Name
 	u32_to_u8(entry->namesize,file->name_len,LE);
@@ -388,6 +388,7 @@ int AddFileToRomfs(romfs_buildctx *ctx, fs_file *file, u32 parent, u32 sibling)
 	}
 	else
 		u64_to_u8(entry->dataoffset,0x40,LE);
+		
 	AddFileHashKey(ctx,parent,file->name,ctx->u_fileTableLen);
 	ctx->u_fileTableLen += sizeof(romfs_fileentry) + align(file->name_len,4);
 		
@@ -401,7 +402,7 @@ int AddDirToRomfs(romfs_buildctx *ctx, fs_dir *fs, u32 parent, u32 sibling)
 	
 	u32_to_u8(entry->parentoffset,parent,LE);
 	u32_to_u8(entry->siblingoffset,sibling,LE);	
-	u32_to_u8(entry->weirdoffset,0xffffffff,LE);
+	u32_to_u8(entry->weirdoffset,ROMFS_UNUSED_ENTRY,LE);
 
 	u32 Currentdir = ctx->u_dirTableLen;
 	
@@ -485,7 +486,7 @@ void BuildIvfcHeader(romfs_buildctx *ctx)
 	memcpy(ctx->ivfcHdr->magic,"IVFC",4);
 	u32_to_u8(ctx->ivfcHdr->id,0x10000,LE);
 	
-	u32 masterHashSize = ( align(ctx->level[1].size,ROMFS_BLOCK_SIZE) / ROMFS_BLOCK_SIZE ) * 0x20 ;
+	u32 masterHashSize = ( align(ctx->level[1].size,ROMFS_BLOCK_SIZE) / ROMFS_BLOCK_SIZE ) * SHA_256_LEN ;
 	u32_to_u8(ctx->ivfcHdr->masterHashSize,masterHashSize,LE);
 	
 	for(int i = 1; i < 4; i++){
@@ -505,7 +506,7 @@ void GenIvfcHashTree(romfs_buildctx *ctx)
 		u32 numHashes = align(ctx->level[i+1].size,ROMFS_BLOCK_SIZE) / ROMFS_BLOCK_SIZE;
 		for(u32 j = 0; j < numHashes; j++){
 			u8 *datapos = (u8*)(ctx->level[i+1].pos + ROMFS_BLOCK_SIZE * j);
-			u8 *hashpos = (u8*)(ctx->level[i].pos + 0x20 * j);
+			u8 *hashpos = (u8*)(ctx->level[i].pos + SHA_256_LEN * j);
 			ShaCalc(datapos, ROMFS_BLOCK_SIZE, hashpos, CTR_SHA_256);
 		}
 	}