decode from base64 format

Base64 Module Preface Yesterday the team's sister came to ask questions about the POP3 protocol, so today a little bit about the format of the POP3 protocol and the poplib in Python. And the POP server back to the data in a part of the need to use

Python uses the base64 module for binary data encoding. Preface Yesterday, my team asked me about the POP3 protocol. So today I have studied the POP3 protocol format and the poplib in Python. Some of the data transmitted back by the POP server needs

Brief introductionFeatures: RFC 3548:base16, BASE32, Base64 data encoding. Converts the binary data to an ASCII sequence that is suitable for plaintext protocol transmission. Transformation8bits contains valid data for 6, 5, or 4bits for each byte,

Base64 encoding. First, we should clarify why there is a 64 character in it? In fact, because the encoding uses 64 plain text to encode arbitrary binary files, it only uses the A-Z, A-Z, 0-9, +,/This 64 characters, some people who have "a little

Today, let's look at the use of base64 cryptographic functions, and the difference between Python2 and Python3. First, base64 Base64 is a representation of binary data based on 64 printable characters. Since 2 of the 6 is equal to 64, every 6 bits

I. Brief description MD5: All called message digest algorithm 5 (Information digest algorithm), can be encrypted, but not decrypted, belong to one-way encryption, usually used for file verification BASE64: The 8-bit byte of any sequence is

I. Base64 encoding Principle Step 1: Convert all characters into ASCII codes;Step 2: Convert the ASCII code into an 8-bit binary code;Step 3: Combine the binary three into a group (less than three are supplemented with 0) with a total of 24 bits

How do I encode a string in node. js? Is it as simple as using Base64_encode () in PHP?There are many ways to encoding strings in node. js, rather than defining a variety of global functions as in JavaScript. Here's how to encode a normal string

Java has always lacked the BASE64 encoding API, which is often used by third-party API implementations in project development. However, Java 8 implements the BASE64 codec API, which contains the Java.util package. I'm going to do an introduction to

One, base64 picture codecBasic flow: Download a picture from the network. Then base64 encoding, and then base64 decoding, stored in the local e-packing folder.