Numpy Array to base64 and back to Numpy Array – Python
import base64 import numpy as np t = np.arange(25, dtype=np.float64) s = base64.b64encode(t) r = base64.decodebytes(s) q = np.frombuffer(r, dtype=np.float64) print(np.allclose(q, t)) # True
base64
Base64 encoding Allowed Characters
You will not see any commas, colons, or double quotes in a Base64 encoded string. You will see equals signs since they’re used to pad the ending content.
Encode / Decode .EXE into Base64
The problem was caused by: Get-Content without -raw splits the file into an array of lines thus destroying the code Text.Encoding interprets the binary code as text thus destroying the code Out-File is for text data, not binary code The correct approach is to use IO.File ReadAllBytes: $base64string = [Convert]::ToBase64String([IO.File]::ReadAllBytes($FileName)) and WriteAllBytes to decode: [IO.File]::WriteAllBytes($FileName, … Read more
Base64 encoding and decoding in oracle
I’ve implemented this to send Cyrillic e-mails through my MS Exchange server. function to_base64(t in varchar2) return varchar2 is begin return utl_raw.cast_to_varchar2(utl_encode.base64_encode(utl_raw.cast_to_raw(t))); end to_base64; Try it. upd: after a minor adjustment I came up with this, so it works both ways now: function from_base64(t in varchar2) return varchar2 is begin return utl_raw.cast_to_varchar2(utl_encode.base64_decode(utl_raw.cast_to_raw(t))); end from_base64; You … Read more
HEX to Base64 converter for JavaScript
If you’re working in Node or using Browserify, you can use var base64String = Buffer.from(hexString, ‘hex’).toString(‘base64’) or var hexString = Buffer.from(base64String, ‘base64’).toString(‘hex’)
Base64 String to byte[] in java [duplicate]
You can use java.util.Base64 package to decode the String to byte[]. Below code which I have used for encode and decode. For Java 8 : import java.io.UnsupportedEncodingException; import java.util.Base64; public class Example { public static void main(String[] args) { try { byte[] name = Base64.getEncoder().encode(“hello World”.getBytes()); byte[] decodedString = Base64.getDecoder().decode(new String(name).getBytes(“UTF-8”)); System.out.println(new String(decodedString)); } catch … Read more
Base64 encoded image is not showing in gmail
base64 encoded images are not well supported in email. They aren’t supported in most web email clients (including Gmail) and are completely blocked in Outlook. Apple Mail is one of the few clients that does support them, that’s why you’re able to see them there but not elsewhere. Another thing to be mindful of with … Read more
Is Java 8 java.util.Base64 a drop-in replacement for sun.misc.BASE64?
Here’s a small test program that illustrates a difference in the encoded strings: byte[] bytes = new byte[57]; String enc1 = new sun.misc.BASE64Encoder().encode(bytes); String enc2 = new String(java.util.Base64.getMimeEncoder().encode(bytes), StandardCharsets.UTF_8); System.out.println(“enc1 = <” + enc1 + “>”); System.out.println(“enc2 = <” + enc2 + “>”); System.out.println(enc1.equals(enc2)); Its output is: enc1 = <AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA > enc2 = <AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA> false … Read more
Storing base64 data in XML?
You can just store it as a text or attribute value; no escaping or CDATA sections needed. The standard base 64 characters + and / (other than a-z, A-Z and 0-9) do not interfere with XML parsing at all.
PHP get pdf file from base64 encoded data string
Try this piece of code $pdf_base64 = “base64pdf.txt”; //Get File content from txt file $pdf_base64_handler = fopen($pdf_base64,’r’); $pdf_content = fread ($pdf_base64_handler,filesize($pdf_base64)); fclose ($pdf_base64_handler); //Decode pdf content $pdf_decoded = base64_decode ($pdf_content); //Write data back to pdf file $pdf = fopen (‘test.pdf’,’w’); fwrite ($pdf,$pdf_decoded); //close output file fclose ($pdf); echo ‘Done’;