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2. How do I encode and decode a base64 string? - Stack Overflow

   stackoverflow.com/questions/11743160

   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 ...

3. How to encode text to base64 in python - Stack Overflow

   stackoverflow.com/questions/23164058

   Base64 encoding is a process of converting binary data to an ASCII string format by converting that binary data into a 6-bit character representation. The Base64 method of encoding is used when binary data, such as images or video, is transmitted over systems that are designed to transmit data in a plain-text (ASCII) format.

4. How can I do Base64 encoding in Node.js? - Stack Overflow

   stackoverflow.com/questions/6182315

   Buffers can be used for taking a string or piece of data and doing Base64 encoding of the result. For example: > console.log(Buffer.from("Hello World").toString('base64')); SGVsbG8gV29ybGQ= > console.log(Buffer.from("SGVsbG8gV29ybGQ=", 'base64').toString('ascii')) Hello World The Buffer constructor is a global object, so no require is needed ...

5. base64 - What is base 64 encoding used for? - Stack Overflow

   stackoverflow.com/questions/201479

   The base64 is a binary to a text encoding scheme that represents binary data in an ASCII string format. base64 is designed to carry data stored in binary format across the channels. It takes any form of data and transforms it into a long string of plain text.

6. Base64 Encode "string" - command-line Windows? - Stack Overflow

   stackoverflow.com/questions/37046771

   23. If you have OpenSSL for Windows installed you can use this to encode the string "Hello": echo | set /p="Hello" | openssl base64. The | set /p= is to suppress the newline that echo usually outputs. This will produce the same result as the following in bash: echo -n 'Hello' | openssl base64. Output:

7. How to decode/encode string to base64 in typescript express...

   stackoverflow.com/questions/56952405

   I was also trying to decode a large image. Then on the nodejs server you can use Buffer directly: const b64 = "SGVsbG8sIFdvcmxkIQ=="; const fileDataProcessed = Buffer.from(b64, 'base64').toString('binary') const decodedData = Buffer(fileDataProcessed, 'base64') // This is the code that you can now upload to your s3 bucket, or somewhere else.

8. Encode to Base64 a specific file by Windows Command Line

   stackoverflow.com/questions/65577255

   7. the usual windows way to generate a base 64 string is. Make any file (here simple text but can be PDF, docX or whatever.) echo Hello World!>input.ext. Convert to base64. certutil -encodehex -f "input.ext" "output.txt" 0x40000001 1>nul. to see the result use. type output.txt. SGVsbG8gV29ybGQhDQo=.

9. Why does a base64 encoded string have an = sign at the end

   stackoverflow.com/questions/6916805

   A: As a short answer: The last character (= sign) is added only as a complement (padding) in the final process of encoding a message with a special number of characters. You will not have an = sign if your string has a multiple of 3 characters, because Base64 encoding takes each three bytes (a character=1 byte) and represents them as four ...

10. How do I base64 encode (decode) in C? - Stack Overflow

    stackoverflow.com/questions/342409

    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.,

11. c# - How to check for a valid Base64 encoded string

    stackoverflow.com/questions/6309379

    I'm quite surprised that no one has mentioned System.Buffers.Text.Base64 which was introduced in .NET Core 2.1 (and is part of .NET Standard 2.0). It has an IsValid method to check whether a ReadOnlySpan<char> or a ReadOnlySpan<byte> is valid Base 64. Since string is implicitly convertible to ReadOnlySpan<char>, you can simply pass in a string ...