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- Because Base64 has fewer meaningful bits per byte than a binary data format (usually 6 instead of 8). This is specifically so it can survive various textual transformations that binary data would not.
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Dec 27, 2022 · Because Base64 has fewer meaningful bits per byte than a binary data format (usually 6 instead of 8). This is specifically so it can survive various textual transformations that binary data would not.
If fewer than three octets (24 bits) are remaining to encode, the input data is right-padded with zero bits to form an integral multiple of six bits. After encoding the non-padded data, if two octets of the 24-bit buffer are padded-zeros, two = characters are appended to the output; if one octet of the 24-bit buffer is filled with padded-zeros ...
Nov 28, 2023 · By the way, if you use only 7 bits per character, then base64 must be less wasteful in terms of memory usage. The main theory is that base64 causes a memory overhead of 33% (or 37% or whatever). But it seems to be correct only for an 8-bit scenario.
May 9, 2023 · Here’s a step-by-step explanation of how Base64 encoding works: Divide the binary data into 24-bit groups (3 bytes) if the length of the binary data is evenly divisible by 3 bytes....
During encoding, the Base64 algorithm replaces each three bytes with four bytes and, if necessary, adds padding characters, so the result will always be a multiple of four. Simply put, the size of the result will always be 33% (more exactly, 4 ⁄ 3 ) larger than the original data.
Aug 26, 2024 · Note: Base64 is a binary encoding rather than a text encoding, but btoa and atob were added to the web platform before it supported binary data types. As a result, the two functions use strings to represent binary data, with the code point of each character representing the value of each byte.
May 27, 2020 · This code is called base64 and simply put it is meant to convert binary files to text format. But what does that mean, what is a binary file, why does it need to be converted to plain text, and how does it work?
