mortar | Framework to join Linux 's physical security bricks
kandi X-RAY | mortar Summary
kandi X-RAY | mortar Summary
TL;DR virtually all Linux distributions are critically vulnerable to physical bootloader attacks and potential disk key interception. Mortar fixes that. Mortar is an attempt to take the headache and fragmented processes out of joining Secureboot, TPM keys, and LUKS. Through the "Mortar Model" everything on disk that is used is either encrypted, signed, or hashed. The only location cleartext secrets are stored is in the TPM module, which is purpose-built to protect these keys against physical and virtual theft. The TPM is used to effectively whitelist certain boot states and Mortar configures it to only release the key when an untampered system is observed. Since this validation and unlocking process is completely automated, intact systems fully restart without human interaction. This makes full-disk encryption dramatically more convenient for end-users and finally viable on servers. Mortar aims to support both TPM 1.2 (via its own implementation) and TPM 2 (via clevis). LUKS1 and LUKS2 are both supported. Mortar is modular and designed to be distribution agnostic, but Debian receives the most love. Security note with TPM2: Clevis allows anyone with root access to fetch sufficent private data to unlock the drive. Protect the root account. With TPM1.2 Mortar leverages READ_STCLEAR to make this more difficult (thanks morbitzer). I'm investigating a way to make tpm2 work without clevis down the road. Note on updates: Unless there is a security issue that is remediated by a newer version of this framework, I highly advise that you not upgrade unless you are experiencing issues. If your system works, unlocks, and survives kernel and initramfs upgrades, leave it. The majority of changes here are for new supported distros, development scalability, and streamlining of data ingestion that may be incompatible with the version of mortar you are using. If you've freshly installed, by all means pull the latest version and use it. If you're sitting pretty, stay put. <3.
Support
Quality
Security
License
Reuse
Top functions reviewed by kandi - BETA
Currently covering the most popular Java, JavaScript and Python libraries. See a Sample of mortar
mortar Key Features
mortar Examples and Code Snippets
Community Discussions
Trending Discussions on mortar
QUESTION
I have a dataframe of the following type:
...ANSWER
Answered 2022-Mar-13 at 07:16Rather than using filter
, I would suggest a more idiomatic way to proceed.
Suppose you want to filter on the word "Mortar":
QUESTION
Disclaimer: I found something similar to this problem in a different post but the solution is not quite what I need.
I have a data set, TGA, with a few time and temperature series involving different treatments.
...ANSWER
Answered 2022-Jan-25 at 15:21The issue is that geom_text_repel()
requires an x
and a y
aesthetic. This is not a problem in the first example that works, since the y
aesthetic is mapped to Value [mg]
, and that column exists in both the TGA
and decar_cotton_Air
.
In the second example, you are plotting using TGA_averages
and mapping y = mean_weight_loss
. Since geom_text_repel()
in that case is set to look at decar_cotton_Air
, it will expect there to be a column for what is specified in x
and y
mapping... in this case, it expects there to be x and y columns specified.
The solution is to either rename a column in decar_cotton_Air
to be called mean_weight_loss
, or specify the y
mapping separately in each geom instead of overall in the plot. Here's some pseudocode to give you an idea:
QUESTION
I'm querying a API and pulling data that i need out of it. I then want to convert this to a pandas dataframe but not sure on best way to do it. I've got something that works but is very convoluted. The sample data below is a dictionary but this would really come from a API but it gets the point across.
...ANSWER
Answered 2022-Jan-07 at 15:32I may be missing something here but is just this what you're after?
QUESTION
and I apologize for asking a very basic question, but basically, I'm not able to wrap my head around include "fileImade.h"
I'm trying to write a main function, that's something like
...ANSWER
Answered 2022-Jan-04 at 10:30The logic of the file separation may be imagined as:
(single file program)
QUESTION
I have an eCommerce type app (Spring Boot) in progress and I'm using a HashMap to keep track of items and item count in a shopping cart. When adding items to the cart the hashmap does not recognize similar items and makes a new entry in stead of adding to item count. I understand this is somehow related to Jpa and the way hashcode is generated. I tried the same situation as POJOs (no jpa or anything) and the key is recognized. I tried overriding equals(Object o) and hashCode() methods as shown below (to ignore the problematic list), but it does not help even though it now generates the same hashcode (as seen below). I would be very pleased to get this to work, thank you in advance!
Item:
...ANSWER
Answered 2021-Nov-10 at 07:14Thanks for M. Deinum for the comment that fixed the problem! Instructions found here: https://vladmihalcea.com/the-best-way-to-implement-equals-hashcode-and-tostring-with-jpa-and-hibernate/
QUESTION
I have written a piece of code previously to change an object in another format. The object to change is given below:
...ANSWER
Answered 2021-Jun-25 at 05:33You can vastly simplify your logic by using a data constructor and a recursive function that uses it:
QUESTION
I have a 3 deep array. Currently, the code will isolate a record based on one field ($profcode) and show the heading. Eventually, I am going to build a table showing the information from all the other fields. The code so far is using in_array and a function that accepts $profcode. I am unsure if (and how) I need to use array_keys() to do the next part when I retrieve the "Skills" field. I tried:
...ANSWER
Answered 2021-Apr-23 at 21:05I picked from your code and ended up with this...The find function is fine as is...just replace this section
QUESTION
I have a problem about implementing recommendation system by using Euclidean Distance.
What I want to do is to list some close games with respect to search criteria by game title and genre.
Here is my project link : Link
After calling function, it throws an error shown below. How can I fix it?
Here is the error
...ANSWER
Answered 2021-Jan-03 at 16:00The issue is that you are using euclidean distance for comparing strings. Consider using Levenshtein distance, or something similar, which is designed for strings. NLTK has a function called edit distance that can do this or you can implement it on your own.
QUESTION
I have a progress bar with 4 different steps. Is there a way to make it so when you press the next button, it changes the four test buttons to something else?
Basically, I want to have 4 different pages under the 4 steps. So when you are on step 1, it shows you a page with buttons. When you click next, step 2 shows you something different like a line of text. Etc...
If you are struggling to understand, here is a codepen with the result I desire: https://codepen.io/vajahath_ahmed/pen/xEgOdp notice how when you press next, the text changes. That is what I'm trying to achieve.
...ANSWER
Answered 2020-Nov-04 at 15:04Since you are using the data-stepnum
attribute as a counter, you can use this to trigger different divs. Check this out:
QUESTION
I have this loading bar. When you add active
to div class="step"
, it adds progression. How do I add a next and previous button that makes active according to the step you are on.
Please help!
...ANSWER
Answered 2020-Nov-01 at 19:06Check the next()
and previous()
functions below, which do what I think you're striving for.
Also, it's not obvious to me how your $(document).ready()
function is necessary, and it might not be.
Community Discussions, Code Snippets contain sources that include Stack Exchange Network
Vulnerabilities
No vulnerabilities reported
Install mortar
Do this as root in a directory only root can access. (I typically use /root/git at this stage.). Install git and git clone this project. DON'T FORGET TO INSTALL THE TPM-VERSION-SPECIFIC PACKAGES THAT ARE ECHOED AT THE END. At this point you should have your /etc/mortar/mortar.env file generated and installed. Change any values that you'd like. /usr/local/sbin/mortar-compilesigninstall should also be installed.
Measure TPM PCR values and store for later comparison.
TPM2: tpm2_pcrlist Look at 7 and 1 especially.
Put your BIOS's Secure Boot setting into "Audit" mode if possible then reboot into your OS and run ./2-. If it does not have an audit mode, you will need to manually install your Secure Boot keys. They are located in /etc/mortar/private/*.crt you may need to convert them to DER format first.
Enroll any hashes that need to be enrolled (especially if booting from a raid-controller-hosted disk, system may not boot without this. NVIDIA proprietary graphics may also cause issues.).
Put a password on the BIOS.
Boot the system with secureboot on (and pray).
Measure PCR values now that secureboot is set up. (PCR7 may be the same depending on if you enrolled additional hashes or not, PCR1 should have changed since BIOS settings were modified.)
optional steps: Regenerate the signed EFI. This will move the first one to .old. Reboot, and reread the PCR values. This will let you see what stays the same when booting different EFI files that are both validly signed.
Make sure you've set a BIOS password and made any necessary settings changes to your BIOS before the next step.
Run the luks script for the TPM version being used. ./3-
Update initramfs. (done by the script)
Regenerate EFI.
Reboot and pray.
If it all works, then you just booted to a login prompt with the disk being automatically unlocked.
Support
Reuse Trending Solutions
Find, review, and download reusable Libraries, Code Snippets, Cloud APIs from over 650 million Knowledge Items
Find more librariesStay Updated
Subscribe to our newsletter for trending solutions and developer bootcamps
Share this Page