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I have the following piece of Base64 encoded data, and I want to use the Python Base64 module to extract information from it.
Remember base64 is primarily intended for representing binary data in ASCII, for storing in a char field in a database or sending via email (where new lines could be injected). Do you really want to take character data, convert it to bytes, then convert it back to character data, this time unreadable and with no hint of what the original ...
Base64 Win-1251 decoding for encodings other than acsi or iso-8859-1.. As it turned out, all the scripts I saw here convert Cyrillic Base64 to iso-8859-1 encoding.
Well, because it didn't seem appropriate to me that I should work with binary data stored within std::string object ;) base64.h: #ifndef _BASE64_H_. #define _BASE64_H_. #include <vector>. #include <string>. typedef unsigned char BYTE; std::string base64_encode(BYTE const* buf, unsigned int bufLen); std::vector<BYTE> base64_decode(std::string ...
This one-liner preserves the original encoding of the base64 encoded file, so it will work with binary files such as a PDF or ZIP. Change ".\input.txt" and output.bin as needed - this will take .\input.txt, base 64 decode it, and then write the bytes out to output.bin exactly as they were when the file was encoded. Encoding Byte - that is the ...
on converting TO Base64, you must first obtain a byte representation of the string you're trying to encode using the character encoding the consumer of the Base64 string expects. on converting FROM Base64, you must interpret the resultant array of bytes as a string using the same encoding that was used to create the Base64 representation ...
It seems you just need to add padding to your bytes before decoding. There are many other answers on this question, but I want to point out that (at least in Python 3.x) base64.b64decode will truncate any extra padding, provided there is enough in the first place.
Here is the right set to of steps to convert form base64encoded to base64urlencoded string: 1. From the resultant string, replace "/" with "_" and "+" with "-". 2. Strip the trailing "==". Et voila! That will make it a valid string for base64 url decoding. Btw, that link in @dae.eklen 's answer above is broken now.
1009. Just use the base64 program from the coreutils package: echo QWxhZGRpbjpvcGVuIHNlc2FtZQ== | base64 --decode. Or, to include the newline character. echo `echo QWxhZGRpbjpvcGVuIHNlc2FtZQ== | base64 --decode`. output (includes newline): Aladdin:open sesame. Share.
GNU coreutils has it in lib/base64. It's a little bloated but deals with stuff like EBCDIC. You can also play around on your own, e.g.,