Even if the whole mail system was 8-bit clean, you'd still need to encode binary files. I read it as being that base64 had ascended before being incorporated into URLs.

Start here for a quick overview of the site Uuencode converts binary data into text it was the first method used to send binary files by email (it is just one of the usage of uuencode). Conversely, the standard Base64 decoding algorithm doesn't care about spaces or line breaks at all.Base64 is not sensitive to whitespace formatting at all as whitespace is specified to have a very specific meaning in base64: it means ignore this byte and read the next byte.I'm actually curious why the "URL-safe" version isn't just @Nick MIME was invented in 1990 or 1991, and codified in 1992; URLs were invented in 1992 and codified in 1994. test" begin-base64 644 - SGVsbG8gV29ybGQhIHRlc3QK ==== $ base64 <<<"Hello World! Which rpm package provides uuencode and uudecode command? Now we will look some examples about to encrypt and decrypt Base64 in Linux bash environment. Decoding base64 with unpack can likewise be accomplished by translating the characters: UNIX is a registered trademark of The Open Group. site design / logo © 2020 Stack Exchange Inc; user contributions licensed under Command. MIME and uuencode are formats for representing non-ASCII characters or arbitrary binary data in messages such as e-mail or newsgroup postings. The format was quite robust, insensitive to line breaks (if your mail program reflowed the text, for uuencode you could still decode the file) and the uuencode/uudecode programs were quite user-friendly.Base64 was not nearly so well liked.

encodestring() returns a string containing one or more lines of base64-encoded data always including an extra trailing newline (‘\n’).Thus, we can do the following in order to Base64 encode our image:If you want to see the output of the encoding process, type the following:To decode an image using Python, we simply use the Decode the string s, which must contain one or more lines of base64 encoded data, and return a string containing the resulting binary data.So, in order to decode the image we encoded in the previous section, we do the following:Let’s put the program that Base64 encodes and decodes an image together. yEnc is a binary-to-text encoding scheme for transferring binary files in messages on Usenet or via e-mail.It reduces the overhead over previous US-ASCII-based encoding methods by using an 8-bit Extended ASCII encoding method. (I’m assuming that the name of the image is The first thing we have to do in order to use Base64 in Python is to import the In order to encode the image, we simply use the function Encode the string s, which can contain arbitrary binary data, and return a string containing one or more lines of base64-encoded data. The following table shows the conversion of the decimal value of the 6-bit fields obtained during the conversion process and their corresponding The following is an example of uuencoding a one-line text file. Some ASN.1 binary BLOBS can have the first few bytes of the BLOB incorrectly interpreted as Base64 text. So URL-safety didn’t exist when MIME was invented. Except for the header and tail that uuencode adds to its output, yes: $ uuencode -m - <<<"Hello World! {60}|.+)//);' @JohnBollinger, UUEncode uses the upper-case letters, the numbers, and a wide range of punctuation. You try to uudecode and it all goes horribly wrong. Anybody can ask a question Base64 encoding schemes are commonly used when there is a need to encode binary data that needs be stored and transferred over media that are designed to deal with textual data. uuencoding is a form of binary-to-text encoding that originated in the Unix programs uuencode and uudecode written by Mary Ann Horton at UC Berkeley in 1980, for encoding binary data for transmission in email systems.

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