How To Install trousers on CentOS 8

trousers is TCG’s Software Stack v1.2

Introduction

In this tutorial we learn how to install trousers on CentOS 8.

What is `trousers`

TrouSerS is an implementation of the Trusted Computing Group’s Software Stack (TSS) specification. You can use TrouSerS to write applications that make use of your TPM hardware. TPM hardware can create, store and use RSA keys securely (without ever being exposed in memory), verify a platform’s software state using cryptographic hashes and more.

We can use yum or dnf to install trousers on CentOS 8. In this tutorial we discuss both methods but you only need to choose one of method to install trousers.

Install trousers on CentOS 8 Using dnf

Update yum database with dnf using the following command.

sudo dnf makecache --refresh

The output should look something like this:

CentOS Linux 8 - AppStream                                       43 kB/s | 4.3 kB     00:00    
CentOS Linux 8 - BaseOS                                          65 kB/s | 3.9 kB     00:00    
CentOS Linux 8 - ContinuousRelease                               43 kB/s | 3.0 kB     00:00    
CentOS Linux 8 - Extras                                          23 kB/s | 1.5 kB     00:00    
CentOS Linux 8 - FastTrack                                       40 kB/s | 3.0 kB     00:00    
CentOS Linux 8 - HighAvailability                                36 kB/s | 3.9 kB     00:00    
CentOS Linux 8 - Plus                                            24 kB/s | 1.5 kB     00:00    
CentOS Linux 8 - PowerTools                                      50 kB/s | 4.3 kB     00:00    
Extra Packages for Enterprise Linux Modular 8 - x86_64           13 kB/s | 9.2 kB     00:00    
Extra Packages for Enterprise Linux 8 - x86_64                   24 kB/s | 8.5 kB     00:00    
Metadata cache created.

After updating yum database, We can install trousers using dnf by running the following command:

sudo dnf -y install trousers

Install trousers on CentOS 8 Using yum

Update yum database with yum using the following command.

sudo yum makecache --refresh

The output should look something like this:

CentOS Linux 8 - AppStream                                       43 kB/s | 4.3 kB     00:00    
CentOS Linux 8 - BaseOS                                          65 kB/s | 3.9 kB     00:00    
CentOS Linux 8 - ContinuousRelease                               43 kB/s | 3.0 kB     00:00    
CentOS Linux 8 - Extras                                          23 kB/s | 1.5 kB     00:00    
CentOS Linux 8 - FastTrack                                       40 kB/s | 3.0 kB     00:00    
CentOS Linux 8 - HighAvailability                                36 kB/s | 3.9 kB     00:00    
CentOS Linux 8 - Plus                                            24 kB/s | 1.5 kB     00:00    
CentOS Linux 8 - PowerTools                                      50 kB/s | 4.3 kB     00:00    
Extra Packages for Enterprise Linux Modular 8 - x86_64           13 kB/s | 9.2 kB     00:00    
Extra Packages for Enterprise Linux 8 - x86_64                   24 kB/s | 8.5 kB     00:00    
Metadata cache created.

After updating yum database, We can install trousers using yum by running the following command:

sudo yum -y install trousers

How To Uninstall trousers on CentOS 8

To uninstall only the trousers package we can use the following command:

sudo dnf remove trousers

trousers Package Contents on CentOS 8

/etc/tcsd.conf
/usr/lib/.build-id
/usr/lib/.build-id/e6
/usr/lib/.build-id/e6/cc66ae5d88bb4706d49da7a3bb4318a36a8d4c
/usr/lib/systemd/system/tcsd.service
/usr/sbin/tcsd
/usr/share/doc/trousers
/usr/share/doc/trousers/ChangeLog
/usr/share/doc/trousers/README
/usr/share/man/man5/tcsd.conf.5.gz
/usr/share/man/man8/tcsd.8.gz
/var/lib/tpm

References

trousers website

Summary

In this tutorial we learn how to install trousers on CentOS 8 using yum and dnf.