![]() If you have worked with the OpenSSL tool, you have seen several examples of Base64-encoded certificates. One of the most common use cases is certificate encoding. Knowing how to recognize, encode, and decode Base64 is valuable due to its prevalence as an encoding approach. ![]() Using Base64 encoding may seem esoteric, but there are many common scenarios where you will encounter Base64 in systems administration. How well do you know Linux? Take a quiz and get a badge.Linux system administration skills assessment.A guide to installing applications on Linux.Download RHEL 9 at no charge through the Red Hat Developer program.This can be done by looking up the values in an ASCII-to-binary conversion table. The first step in the encoding process is to obtain the binary representation of each ASCII character. For example, consider the sentence Hi\n, where the \n represents a newline. This allows you to transport binary over protocols or mediums that cannot handle binary data formats and require simple text.īase64 uses 6-bit characters grouped into 24-bit sequences. How Base64 worksįundamentally, Base64 is used to encode binary data as printable text. Finally, I provide some practical examples of Base64 encoding that you will likely encounter as a sysadmin. Once I explain this simple encoding format, I will introduce the base64 command-line utility that you can use to encode and decode data. ![]() This article walks you through the theoretical aspects of Base64 encoding. It also enables you to use Base64 encoding in your own applications and scripts.
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