網上的Base64解碼器

I am writing an App which does the following with a given String str:

encode(encrypt(encode(stringToBytearray(str))));

The Server receives the Base64 encoded String, which is then decoded -> decrypted -> decoded, to get the sent String str from the App.

Unfortunately it doesnt work for all Strings, long Strings lead to a long Base64 String and my Server throws the following Exception:

Exception in thread "main" java.lang.IllegalArgumentException: Illegal base64 character 5b at java.util.Base64$Decoder.decode0(Base64.java:714) at java.util.Base64$Decoder.decode(Base64.java:526) at Main.decode(Main.java:113) at Main.main(ain.java:33)

The String has the format "[string, string, ..., string]" without "s.

Like I mentioned above, for Strings which are not too long (sorry I cant quantify the length yet), this works. So I think I implemented it right.

Whats weird is, that if I dont send it, but decode(decrypt(decode(stringToBytearray(str)))); the String on the Device itself, it all works perfectly.

My Setup:JDK 7, eclipse (adt-bundle, android development) (Windows 7)

JDK 8, eclipse ('normal' java) (Linux (xubuntu))

Is it because both Classes (Base64) are implemented diffrently? If so, how can I make it work?

Here are the Encoding/Decoding Methods:

Encoding (Device: on Windows 7, adt-bundle, Android-Dev, jdk 7):

import android.util.Base64public byte[] encode(byte[] bytearrayToEncode){   return Base64.encode(bytearrayToEncode, Base64.NO_WRAP|Base64.URL_SAFE);}

Decoding (Server: on Linux, jdk 8):

import java.util.Base64public byte[] decode(byte[] bytearrayToEncode){   return Base64.getUrlDecoder().decode(bytearrayToDecode);}

Strings are all De-/Encoded with the same charset (utf-8)!Encoding/Decoding: Base64

Crypto: AES

If you need more Information, just ask, but I think I provided all neccessary informations.

Edit:

public String bytearrayToString(byte[] bytearray){    String str = null;    try {        str = new String(bytearray, "UTF-8");    } catch (UnsupportedEncodingException e) {        // TODO Auto-generated catch block        e.printStackTrace();    }    return str;}public byte[] stringToBytearray(String str){    byte[] bytearray = null;    try {        bytearray = str.getBytes("UTF-8");    } catch (UnsupportedEncodingException e) {        // TODO Auto-generated catch block        e.printStackTrace();    }    return bytearray;}

I'm using this:import com.sun.org.apache.xml.internal.security.utils.Base64; to encode/decode Base64 strings and byte arrays to store into a db.

I'm testing out encoding and decoding to see if I can get back the original string:

SecureRandom srand = new SecureRandom();        byte[] randomSalt = new byte[64];        srand.nextBytes(randomSalt);        System.out.println("rand salt bytes: " + randomSalt); // first line        String salt = Base64.encode(randomSalt);        try {            System.out.println(Base64.decode(salt)); // second line        }catch(Base64DecodingException e){            System.out.println(e);        }

However, this prints out:

rand salt bytes: [B@68286c59[B@44d01f20

Why are these not the same, so that I can get back the original byte array?

I have a Playready DRM manifest and am extracting the base64 encoded header from it, this part works fine.

However, when I try to decode the string in Javascript (client-side) via either atob or one of the other copy-paste implementations provided around here, there's a blank missing-character square between each expected character.

If I pipe the encoded string into base64 --decode in a terminal, I get the expected output.

Base64 encoded string: 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

base64 -decode output: ��<WRMHEADER xmlns="http://schemas.microsoft.com/DRM/2007/03/PlayReadyHeader" version="4.0.0.0"><DATA><PROTECTINFO><KEYLEN>16</KEYLEN><ALGID>AESCTR</ALGID></PROTECTINFO><KID>1itH2Ri0skW/V7ugYh/4hg==</KID><CHECKSUM>hu6NSdg4X2U=</CHECKSUM><LA_URL>https://lic.staging.drmtoday.com/license-proxy-headerauth/drmtoday/RightsManager.asmx</LA_URL></DATA></WRMHEADER>

Javascript output: ҂����Ȃ<�W�R�M�H�E�A�D�E�R� �x�m�l�n�s�=�"�h�t�t�p�:�/�/�s�c�h�e�m�a�s�.�m�i�c�r�o�s�o�f�t�.�c�o�m�/�D�R�M�/�2�0�0�7�/�0�3�/�P�l�a�y�R�e�a�d�y�H�e�a�d�e�r�"� �v�e�r�s�i�o�n�=�"�4�.�0�.�0�.�0�"�>�<�D�A�T�A�>�<�P�R�O�T�E�C�T�I�N�F�O�>�<�K�E�Y�L�E�N�>�1�6�<�/�K�E�Y�L�E�N�>�<�A�L�G�I�D�>�A�E�S�C�T�R�<�/�A�L�G�I�D�>�<�/�P�R�O�T�E�C�T�I�N�F�O�>�<�K�I�D�>�1�i�t�H�2�R�i�0�s�k�W�/�V�7�u�g�Y�h�/�4�h�g�=�=�<�/�K�I�D�>�<�C�H�E�C�K�S�U�M�>�h�u�6�N�S�d�g�4�X�2�U�=�<�/�C�H�E�C�K�S�U�M�>�<�L�A�_�U�R�L�>�h�t�t�p�s�:�/�/�l�i�c�.�s�t�a�g�i�n�g�.�d�r�m�t�o�d�a�y�.�c�o�m�/�l�i�c�e�n�s�e�-�p�r�o�x�y�-�h�e�a�d�e�r�a�u�t�h�/�d�r�m�t�o�d�a�y�/�R�i�g�h�t�s�M�a�n�a�g�e�r�.�a�s�m�x�<�/�L�A�_�U�R�L�>�<�/�D�A�T�A�>�<�/�W�R�M�H�E�A�D�E�R�>�

Does anyone know why this is happening or how to combat this? I assume it's the character set, but trying others yields similar results.

EDIT
SO has displayed the Javascript output string properly (i.e. How it should be in my program) so perhaps I'm not escaping it properly or something? Here's how the editor showed it to me when I pasted it in the first time:

EDIT 2After the first edit, SO is now showing the wierd characters again...

Since two weeks, I'm trying and reading to solve this problem, but everything I tried didn't worked :-(

I'm using python 2.7.

I do have, as far as I understand, a base64-string from the format: AAMkADk0ZjU4ODc1LTY1MzAtNDdhZS04NGU5LTAwYjE2Mzg5NDA1ZABGAAAAAAAZS9Y2rt6uTJgnyUZSiNf0BwC6iam6EuExS4FgbbOF87exAAAAdGVuAAC6iam6EuExS4FgbbOF87exAAAxj5dhAAA=

I want to convert it to a hex-string. Which should result in 00000000194BD636AEDEAE4C9827C9465288D7F40700BA89A9BA12E1314B81606DB385F3B7B100000074656E0000BA89A9BA12E1314B81606DB385F3B7B10000318F97610000

I tried it with the following code:

def itemid_to_entryid(itemid):    decoded_val = base64.b64decode(itemid)    decoded_val = ''.join( ["%02X" % ord(x) for x in decoded_val ] ).strip()    decoded_val = decoded_val.upper()    return decoded_valitemid = 'AAMkADk0ZjU4ODc1LTY1MzAtNDdhZS04NGU5LTAwYjE2Mzg5NDA1ZABGAAAAAAAZS9Y2rt6uTJgnyUZSiNf0BwC6iam6EuExS4FgbbOF87exAAAAdGVuAAC6iam6EuExS4FgbbOF87exAAAxj5dhAAA='entryid = itemid_to_entryid(itemid)print(entryid)

which always returns me the following: 0003240039346635383837352D363533302D343761652D383465392D30306231363338393430356400460000000000194BD636AEDEAE4C9827C9465288D7F40700BA89A9BA12E1314B81606DB385F3B7B100000074656E0000BA89A9BA12E1314B81606DB385F3B7B10000318F97610000

and I really don't get, what I'm doing wrong and really would appreciate any help in understanding what I'm doing wrong.

Kind regardsBen

I have a problem with Base64 encoding/decoding. I have google chrome extension which scraps some simple data from opened web page like title, URL, image and then I am doing encoding of all these data and sending them to my nodejs app route.

The problem happens when some time in node router Base64 decode removes 'r' char from web page URL.

Here is my code in chrome extension which doing a encoding:

var Base64={_keyStr:"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+=",encode:function(e){var t="";var n,r,i,s,o,u,a;var f=0;e=Base64._utf8_encode(e);while(f<e.length){n=e.charCodeAt(f++);r=e.charCodeAt(f++);i=e.charCodeAt(f++);s=n>>2;o=(n&3)<<4|r>>4;u=(r&15)<<2|i>>6;a=i&63;if(isNaN(r)){u=a=64}else if(isNaN(i)){a=64}t=t+this._keyStr.charAt(s)+this._keyStr.charAt(o)+this._keyStr.charAt(u)+this._keyStr.charAt(a)}return t},decode:function(e){var t="";var n,r,i;var s,o,u,a;var f=0;e=e.replace(/[^A-Za-z0-9+/=]/g,"");while(f<e.length){s=this._keyStr.indexOf(e.charAt(f++));o=this._keyStr.indexOf(e.charAt(f++));u=this._keyStr.indexOf(e.charAt(f++));a=this._keyStr.indexOf(e.charAt(f++));n=s<<2|o>>4;r=(o&15)<<4|u>>2;i=(u&3)<<6|a;t=t+String.fromCharCode(n);if(u!=64){t=t+String.fromCharCode(r)}if(a!=64){t=t+String.fromCharCode(i)}}t=Base64._utf8_decode(t);return t},_utf8_encode:function(e){e=e.replace(/rn/g,"n");var t="";for(var n=0;n<e.length;n++){var r=e.charCodeAt(n);if(r<128){t+=String.fromCharCode(r)}else if(r>127&&r<2048){t+=String.fromCharCode(r>>6|192);t+=String.fromCharCode(r&63|128)}else{t+=String.fromCharCode(r>>12|224);t+=String.fromCharCode(r>>6&63|128);t+=String.fromCharCode(r&63|128)}}return t},_utf8_decode:function(e){var t="";var n=0;var r=c1=c2=0;while(n<e.length){r=e.charCodeAt(n);if(r<128){t+=String.fromCharCode(r);n++}else if(r>191&&r<224){c2=e.charCodeAt(n+1);t+=String.fromCharCode((r&31)<<6|c2&63);n+=2}else{c2=e.charCodeAt(n+1);c3=e.charCodeAt(n+2);t+=String.fromCharCode((r&15)<<12|(c2&63)<<6|c3&63);n+=3}}return t}}var posturl1 = Base64.encode(posturl);

And this is my code in Nodejs router which doing Base64 decoding:

    var Base64={_keyStr:"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+=",encode:function(e){var t="";var n,r,i,s,o,u,a;var f=0;e=Base64._utf8_encode(e);while(f<e.length){n=e.charCodeAt(f++);r=e.charCodeAt(f++);i=e.charCodeAt(f++);s=n>>2;o=(n&3)<<4|r>>4;u=(r&15)<<2|i>>6;a=i&63;if(isNaN(r)){u=a=64}else if(isNaN(i)){a=64}t=t+this._keyStr.charAt(s)+this._keyStr.charAt(o)+this._keyStr.charAt(u)+this._keyStr.charAt(a)}return t},decode:function(e){var t="";var n,r,i;var s,o,u,a;var f=0;e=e.replace(/[^A-Za-z0-9+/=]/g,"");while(f<e.length){s=this._keyStr.indexOf(e.charAt(f++));o=this._keyStr.indexOf(e.charAt(f++));u=this._keyStr.indexOf(e.charAt(f++));a=this._keyStr.indexOf(e.charAt(f++));n=s<<2|o>>4;r=(o&15)<<4|u>>2;i=(u&3)<<6|a;t=t+String.fromCharCode(n);if(u!=64){t=t+String.fromCharCode(r)}if(a!=64){t=t+String.fromCharCode(i)}}t=Base64._utf8_decode(t);return t},_utf8_encode:function(e){e=e.replace(/rn/g,"n");var t="";for(var n=0;n<e.length;n++){var r=e.charCodeAt(n);if(r<128){t+=String.fromCharCode(r)}else if(r>127&&r<2048){t+=String.fromCharCode(r>>6|192);t+=String.fromCharCode(r&63|128)}else{t+=String.fromCharCode(r>>12|224);t+=String.fromCharCode(r>>6&63|128);t+=String.fromCharCode(r&63|128)}}return t},_utf8_decode:function(e){var t="";var n=0;var r=c1=c2=0;while(n<e.length){r=e.charCodeAt(n);if(r<128){t+=String.fromCharCode(r);n++}else if(r>191&&r<224){c2=e.charCodeAt(n+1);t+=String.fromCharCode((r&31)<<6|c2&63);n+=2}else{c2=e.charCodeAt(n+1);c3=e.charCodeAt(n+2);t+=String.fromCharCode((r&15)<<12|(c2&63)<<6|c3&63);n+=3}}return t}}  var url = Base64.decode(decodedurl);

This is a sample of a problem:I am encoding this url and some other data (title, imagepath from page and url) http://www.c-sharpcorner.com/article/angularjs-2-0-from-beginning-introduction-of-angular-js-2-0/

This is result of encoding an nodejs router: http://www.c-sharpconer.com/article/angularjs-2-0-from-beginning-introduction-of-angular-js-2-0/

Decoded url missing 'r' charachter in domain name c-sharpconer shuld be c-sharpcoRner