Encrypted Files?
Encrypted Files? So if my PCM has been tuned with LS1 edit and I buy HPtuners and pull the program to change it, what will it show? I have read that LS1 edit files are encrypted to that you can't look at them, but the changes that were made with LS1 edit can still be viewed with HPtuners....correct? I am wanting to make slight changes to a tune that was done with LS1edit by someone else, and I am wanting to look at the changes that were made to my PCM and to mirror some of these changes to help my friend tune his stock program for basically the same mods that I have on my car. I had no doubt that I could do this until I read a post this morning that made me question this.
TECH Senior Member
Joined: Nov 2001
Posts: 7,036
Likes: 1
From: Lake Zurich, IL
Originally Posted by CrimeSScene
So if my PCM has been tuned with LS1 edit and I buy HPtuners and pull the program to change it, what will it show? I have read that LS1 edit files are encrypted to that you can't look at them, but the changes that were made with LS1 edit can still be viewed with HPtuners....correct? I am wanting to make slight changes to a tune that was done with LS1edit by someone else, and I am wanting to look at the changes that were made to my PCM and to mirror some of these changes to help my friend tune his stock program for basically the same mods that I have on my car. I had no doubt that I could do this until I read a post this morning that made me question this.
Basically when edit reads the PCM it encrypts the data as part of the process ... so only edit can open .ls1 files (I'm not aware of anyone having cracked the encryption yet... plus there would be legal issues then)
HPT Saves the files as native format and does not encrypt them
Thanks for the response horist, but I still am not understanding (not the brightest crayon in the box sometimes). Are the 128 bit .ls1 files written back to the PCM in that format? Is this the file in which all the changes have been stored?
I just want to see what changes were made to my PCM so that I don't have to start programming from scratch, but I want to use HPtuners, so that I can split the cost with a friend. I hate sounding ingnorant, but I'm still trying to learn this stuff.
I just want to see what changes were made to my PCM so that I don't have to start programming from scratch, but I want to use HPtuners, so that I can split the cost with a friend. I hate sounding ingnorant, but I'm still trying to learn this stuff.
TECH Senior Member
Joined: Nov 2001
Posts: 7,036
Likes: 1
From: Lake Zurich, IL
Originally Posted by CrimeSScene
Thanks for the response horist, but I still am not understanding (not the brightest crayon in the box sometimes). Are the 128 bit .ls1 files written back to the PCM in that format? Is this the file in which all the changes have been stored?
I just want to see what changes were made to my PCM so that I don't have to start programming from scratch, but I want to use HPtuners, so that I can split the cost with a friend. I hate sounding ingnorant, but I'm still trying to learn this stuff.
I just want to see what changes were made to my PCM so that I don't have to start programming from scratch, but I want to use HPtuners, so that I can split the cost with a friend. I hate sounding ingnorant, but I'm still trying to learn this stuff.
the encrypted files are only encrypted on your PC ... in the actual PCM they're not encrypted and HPT can read the tables fine
Basically Carputing chose to encrypt the file on your computer (Not sure at what point this encryption occurs) to prevent reverse engineering .. but there will be no problem reading your PCM, looking at the changes and then flashing your buddies PCM ...
The PCM just holds a big block of binary data - calibration
data which is what you edit, and OS / program data which
you don't (though with the Pro version, you could, if you
knew what and how).
Any of the tuner tools can read the PCM straight-up.
Though there are some tuners out there who "lock" it
by messing with stuff so it's no longer "normal". Be
sure not to give these, any of your business unless
you like being "owned".
The data file that LS1-Edit works with, they encrypt
so only their tool can open it. If it's only 128K size
then perhaps it's only the data blocks and the OS
code is left out of it.
The data file HPTuners works with, is the straight
PCM binary image.
So if you have a LS1-Edit setup, you can't read the
.ls1 (?) file but you can read the PCM, and go from
there.
data which is what you edit, and OS / program data which
you don't (though with the Pro version, you could, if you
knew what and how).
Any of the tuner tools can read the PCM straight-up.
Though there are some tuners out there who "lock" it
by messing with stuff so it's no longer "normal". Be
sure not to give these, any of your business unless
you like being "owned".
The data file that LS1-Edit works with, they encrypt
so only their tool can open it. If it's only 128K size
then perhaps it's only the data blocks and the OS
code is left out of it.
The data file HPTuners works with, is the straight
PCM binary image.
So if you have a LS1-Edit setup, you can't read the
.ls1 (?) file but you can read the PCM, and go from
there.
