Base64 encoding/decoding

Base64 encoding/decodingIntroduction

1. base64 is an encoding method used to transfer binary data in media that only use ascii characters.

2. base64 encoding converts binary data into a representation based on 64 printable characters, including upper and lowercase english letters, numbers, plus signs (+) and slashes (/). the equal sign (=) is used to fill at the end of the encoding.

3. base64 encoding is widely used in a variety of scenarios, including email protocols, small images embedded in web pages, network authentication protocols, etc.

4. base64 is not an encryption process and does not provide data security. anyone can use the base64 decoding algorithm to restore the original data.