As I understand the spec, a Base64 encoder
a) takes the source binary, and pads it out with zeroes to be a multiple of 24 bytes long.
b) it then transcodes it, six bits at a time, to the target set of 64 characters (A..Z, a..z, 0..9, +, -). If it finds the last two bytes (16 bits) have been zero-padded, the last two characters are transcoded as '=='. If it finds that the last one byte (8 bits) have been zero-padded, the last character is transcoded as '='.
My question is, in step (b), how does it know that the last bytes are zeroes because they have been padded vs. they are zeroes because thay are part of the valid binary source data?
Is it that the subsystem that is responsible for part (b) has to know what took place during part (a)
$url = get_url(CONFIRM,base64_encode($_POST['status']."|".$agent_id));ta_send_verification($_POST['email'],$_POST['agent_name'],$url);
I'm sending the profile confirmation mail to user profile. That mail contains activation url link. When I click that link I got this url
Second url is the correct one and it works fine too. But, In my activation link I always get the url with this
== equal to symbol. I don't know how can I remove that
== equal to symbol in my activation url link?
If I run the command
echo 1234 | base64, I get back
MTIzNAo=. If I input the same string into other encoders (base64encode.org for example), I get different
I see a similar pattern with the differences between encoders. Both outputs seem to very similar, but the last or second to last character has differences.
echo 12345678 | base64 outputs
MTIzNDU2NzgK, but on base64encode.org I get
NodeJS's Buffer encoder to base64 also gives the same output as base64encode.org's encoder, so I'm assuming that something isn't right with how I'm using the
base64 command in Linux.
What's the difference?
I am building an open search add-on for Firefox/IE and the image needs to be Base64 Encoded so how can I base 64 encode the favicon I have?
I am only familiar with PHP
I am just studying base64 encoding and decoding algorithms and try some programs. I found some example code online, but the result looks a little weird for me. Here is the link: http://knol2share.blogspot.com/2011/07/base64-encoding-and-decoding-in-c.html
I tried to use it to encode and decode a string.
Enter a string: 02613
Base64 Encoded value: MDI2MTM=
Base64 Decoded value: 02613% -- I do not know why there is a "%", is there a way to get the correct result
I even tried the Base64 program in linux and got the same result after removing the newline in encoding.
Here is the result:%echo -n 02613 |base64
%echo -n MDI2MTM= | base64 --decode
Does anyone know how I can get the exact same result with the input string? Thanks.