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BinaryEncodeUU(<binary>)

Description

Encodes a binary string using the UUEncode algorithm.

Parameters

<binary> The binary string to encode.

Return Value

Success: Returns encoded UUEncode string.
Failure: Returns an empty string.

Remarks

UUEncoding, also known as Unix-to-Unix encoding, is a simple binary-to-text encoding scheme developed for transferring binary files over text-based protocols, primarily within the Unix operating system environment. It was commonly used in early Unix systems to convert binary files into a printable ASCII format for transmission via email or other text-based channels.

The UUEncoding process involves converting each 6 bits of binary data into an ASCII character representation using a set of printable characters. This results in a larger encoded representation compared to the original binary data. The encoding scheme uses a fixed set of 64 characters, comprising uppercase letters, lowercase letters, digits, and a few special characters.

To encode binary data using UUEncoding, the data is divided into 3-byte chunks. Each chunk is then converted to four ASCII characters by mapping the 6 bits of each byte to the corresponding character in the Uuencoding character set. The resulting encoded data is typically split into multiple lines, each line starting with a prefix indicating the length of the data.

When decoding UUEncoded data, the process is reversed. Each group of four ASCII characters is converted back to 3 bytes of binary data by reversing the encoding steps.

UUEncoding is a simple and widely supported encoding method, but it is not very efficient in terms of data size. The encoded data is larger than the original binary representation, resulting in increased storage and transmission requirements. With the advancements in file transfer mechanisms and the prevalence of binary-safe protocols, the usage of UUEncoding has diminished over time.

It's important to note that UUEncoding is not a form of encryption or secure encoding. It was primarily designed for compatibility with text-based systems and does not provide any significant level of data protection or security.

Related

BinaryDecodeUU

Example

Example of usage:

my $str = Bin('a' rr 'f', 'A' rr 'F', '0' rr '9');
my $encoded = BinaryEncodeUu($str);
say $encoded;
my $decoded = BinaryDecodeUu($encoded);
say $decoded;
// PRINTS
// 686)C9&5F04)#1$5&,#$R,S0U-C<X.0``
// 
// abcdefABCDEF0123456789

 


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