Both techniques are used extensively in the networking, software programming, wireless communication and storage fields. Each audio and video file format has a corresponding coder-decoder (codec) program that is used to code it into the appropriate format and then decodes for playback.Įncoding should not be confused with encryption, which hides content. Other types of codes include BinHex, Uuencode (UNIX to UNIX encoding) and Multipurpose Internet Mail Extensions (MIME).Įncoding is also used to reduce the size of audio and video files. The problem of undefined characters is solved by Unicode encoding, which assigns a number to every character used worldwide. The standard ASCII scheme has only zero to 127 character positions 128 through 255 are undefined. A unique number is assigned to some characters. ASCII contains printable and nonprintable characters that represent uppercase and lowercase letters, symbols, punctuation marks and numbers. The type of code used for converting characters is known as American Standard Code for Information Interchange (ASCII), the most commonly used encoding scheme for files that contain text. We will just provide the text or data we want to convert to these functions like below.Encoding involves the use of a code to change original data into a form that can be used by an external process. Javascript provides btoa and atob() functions which are a short form of binary to ascii and ascii to binary . $ base64 -d encoded.txt Javascript Base64

In this example, we will use a file named encoded.txt which contains base64 encoded data. $ base64 data.txt Decodeĭecoding is very similar to encode we will just provide -d option to the base64 command like below. Next to eliminating unnecessary resource downloads, the best thing we can do to improve page-load speed is to minimize the overall download size by optimizing and compressing the remaining resources. We will encode file contents named data.txt with base64 command. Now we will look some examples about to encrypt and decrypt Base64 in Linux bash environment. It can work two way without a security restriction of password. Base64 encoded data can be easily reverted or decoded back to the text format. For example, the following examples are valid Base64 encoded data dGVzdA=Īnd following are not valid encoded data dG.?zdA=īase64 is just encoding format so it is not used to encrypt data to hide from third parties. Data Presentationīase64 uses alphabet, numbers and = for encoded data. Base64 is generally used different applications like email and MIME, XML, JSON, URL, and HTTP, etc. For example, If we try to transfer binary data it may create and affect some network devices because of its data structures. We need the encoding of some data in order to prevent storing and transmission problems.

Base64 is an encoding and decoding algorithm.

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