Protecting a Simulink block with a password

2011 1 28
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更新时间：2019 7 8
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I want to protect a Simulink block (subsystem masked) with a password, so that nobody can open the block or modify the initialization parameters included in the mask parameters.
On the other hand, can I protect the m-files I have?

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Kaustubha Govind
Kaustubha Govind 2011-1-28
编辑：John Kelly 2014-6-12

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You can protect your Simulink subsystem by one of three methods:
1) Control user access to subsystems
2) Generate an S-function
3) Create a protected model from your subsystem, that can then be referenced from users' models.
You can protect MATLAB-files by using pcode.

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Indira
Indira 2011-1-31
Hi Kaustubha,
What kind of protection does the pcode give?
Cause I've converted my m-files to p-files but I can see the same code in both.
Thanks a lot.
Kaustubha Govind
Kaustubha Govind 2011-2-1
The *.p file generated by pcode is of obscured form that is not human-readable. Did you use the "pcode" command?
Indira
Indira 2011-2-1
Yes, I've used "pcode" command, at moment I am using p-files. Hey your information helped me a lot, but I have another question... I've generated a s-function block that requires some data from m-file, how can I define some parameters to the block?...
Thanks =)
Kaustubha Govind
Kaustubha Govind 2011-2-2
Could you please post this as a new question? We'd like for questions to be easily found if another user looks for something similar. Thanks!
stack programer
stack programer 2017-5-17
编辑：stack programer 2017-5-17
Great but for sdr soure it is not work

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Could you pls explain about these three method more in detailed
You can protect your Simulink subsystem by one of three methods:
1) Control user access to subsystems
2) Generate an S-function
3) Create a protected model from your subsystem, that can then be referenced from users' models.
You can protect MATLAB-files by using pcode.
Thanks in Advance
By Senthil

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