Base64 encode data is a draft programming task. It is not yet considered ready to be promoted as a complete task, for reasons that should be found in its talk page.

I recently had the need to convert simple strings back and forth from Base64 encoding. It turned out to be relatively simple in .Net, once you figured out which class libraries you needed to combine. It turns out the System.Convert has two handy methods for dealing with Base64, ToBase64String and FromBase64String. Nov 27, 2019 · Converting images to a Base64 data URL using Javascript Javascript Front End Technology Object Oriented Programming To convert image from an Html page tag to a data URI using javascript, you first need to create a canvas element, set its width and height equal to that of the image, draw the image on it and finally call the toDataURL method on it. BASE64 characters are 6 bits in length. They are formed by taking a block of three octets to form a 24-bit string, which is converted into four BASE64 characters. NOTE: The pad character (=) does not have a binary representation in BASE64; it is inserted into the BASE64 text as a placeholder to maintain 24-bit alignment. You have to consider that the forum members have no idea what object is Base64 encoded in your example. Since your original code sample is converting from Base64 to a string, I created a "Hello World" example. That way we can verify the operation is successful or not. If your Base64 object is an image then covert to an image not a string. Infinty08 I thought this was an academic exercise in developing an algorithm so I re-read the question and realise the asker wants C code and, quite possibly, develop a program to convert a stream (file-to-file, say) from hex to base64. Table 1: The Base64 Alphabet Value Encoding Value Encoding Value Encoding Value Encoding 0 A 17 R 34 i 51 z 1 B 18 S 35 j 52 0 2 C 19 T 36 k 53 1 3 D 20 U 37 l 54 2 4 E 21 V 38 m 55 3 5 F 22 W 39 n 56 4 6 G 23 X 40 o 57 5 7 H 24 Y 41 p 58 6 8 I 25 Z 42 q 59 7 9 J 26 a 43 r 60 8 10 K 27 b 44 s 61 9 11 L 28 c 45 t 62 + 12 M 29 d 46 u 63 / 13 N 30

Base64 is a group of similar binary-to-text encoding schemes that represent binary data in an ASCII string format by translating it into a radix-64 representation. The term Base64 originates from a specific MIME content transfer encoding.

The full scheme for Base64 is further explained in Base64 (Wikipedia).. The code has a dependency on config.h in the base64.c source code file. You can remove this inclusion or just create a simple header file to define the primary define that the Base64 source code has.

Base64 encode/decode. Contribute to littlstar/b64.c development by creating an account on GitHub.

Base64 encode your data in a hassle-free way, or decode it into human-readable format. Base64 encoding schemes are commonly used when there is a need to encode binary data that needs be stored and transferred over media that are designed to deal with textual data. This is to ensure that the data remains intact without modification during transport. Base64 is used to encode character strings in LDIF files; Base64 is often used to embed binary data in an XML file, using a syntax similar to e.g. favicons in Firefox's exported bookmarks.html. Base64 is used to encode binary files such as images within scripts, to avoid depending on external files. Base64 Decode Base64 Encode Image to Base64 Base64 to Image C# System.Convert.FromBase64String() Converts the specified string, which encodes binary data as base-64 digits, to an equivalent 8-bit unsigned integer array. Here is the source code in question: b64.c. The b64.c code was updated 2012-08-04 to version 0.12R. Only cosmetic changes have taken place since its initial release in 2001. This is now 'production stable', even by the author's standards, as evidenced by the removal of the beta tag :)