Blot out topic in Radix-64

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Aug 6th, 2022
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How to blot out topic in Radix-64

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what is going on guys welcome back in this video today weamp;#39;re going to learn how and why to use base64 encoding in Python so letamp;#39;s get right into it all right so weamp;#39;re going to talk about base64 in this video today and weamp;#39;re going to also learn how to use Python to encode and decode data using base64 but before we go into the code I would like to talk a little bit about base64 in general how it works behind the scenes and for this we can open up the Wikipedia page and uh the way it works is quite simple so what we have is we have sequences of bytes now remember one byte is eight bits so if we have one byte that is the same as having eight bits and one bit is either zero or one so if you have eight bits something like this that would be eight bits that would be one byte now I can also have three times eight bits so if I have something like this this should be eight right this this so those are now three times eight bits so three times eight bits or

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Base64 is also widely used for sending e-mail attachments, because SMTP in its original form was designed to transport 7-bit ASCII characters only. Encoding an attachment as Base64 before sending, and then decoding when received, assures older SMTP servers will not interfere with the attachment.
Base64 is a binary to a text encoding scheme that represents binary data in an American Standard Code for Information Interchange (ASCII) string format. Its designed to carry data stored in binary format across the channels, and it takes any form of data and transforms it into a long string of plain text.
What is Radix 64 Encoding? Radix 64 encoding allows binary data stored in octets (i.e. bytes) to be expressed as printable characters.
The decoding algorithm is also pretty simple: Due to the padding during encoding, the number of characters of a Base64 string is always divisable by four. Thus we can process four characters of the string in one step to retrieve three decoded bytes.
Threat actors often disguise malicious scripts in email attachments or share documents infected with malware. One particularly elusive approach is to use Base64 encoding to hide malicious code within HTML content. This article details Base64 encoding as a technique to obfuscate HTML smuggled payloads.
UTF-8 uses the leading bits in a byte as metadata to determine whether its a starting byte or a continuation byte. Those bytes dont hold any information about the character being stored (i.e., the actual data). In contrast, Base64 uses the entire byte as data. It has no metadata.

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