How To Install sha2 on CentOS 8

sha2 is SHA Implementation Library

Introduction

In this tutorial we learn how to install sha2 on CentOS 8.

What is `sha2`

The library implements the SHA-256, SHA-384, and SHA-512 hash algorithms. The interface is similar to the interface to SHA-1 found in the OpenSSL library. sha2 is a simple program that accepts input from either STDIN or reads one or more files specified on the command line, and then generates the specified hash (either SHA-256, SHA-384, SHA-512, or any combination thereof, including all three at once).

We can use yum or dnf to install sha2 on CentOS 8. In this tutorial we discuss both methods but you only need to choose one of method to install sha2.

Install sha2 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 sha2 using dnf by running the following command:

sudo dnf -y install sha2

Install sha2 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 sha2 using yum by running the following command:

sudo yum -y install sha2

How To Uninstall sha2 on CentOS 8

To uninstall only the sha2 package we can use the following command:

sudo dnf remove sha2

sha2 Package Contents on CentOS 8

/usr/bin/sha2
/usr/bin/sha2speed
/usr/lib/.build-id
/usr/lib/.build-id/7b
/usr/lib/.build-id/7b/7233289d0a71ad62c0b96c5deb4ced4071fed6
/usr/lib/.build-id/86
/usr/lib/.build-id/86/d5073bf9f6f74d9413f02e483003e61947941a
/usr/lib/.build-id/c3
/usr/lib/.build-id/c3/35e22010c4e8592889cf8e144fa78d57d815af
/usr/lib64/libsha2.so.1
/usr/lib64/libsha2.so.1.0.1
/usr/share/doc/sha2
/usr/share/doc/sha2/README

References

sha2 website

Summary

In this tutorial we learn how to install sha2 on CentOS 8 using yum and dnf.