javax.crypto.IllegalBlockSizeException: input length must be a multiple of...

Hi guys
I encrypted a string and then converted to byte [], string and put it in db
now, I want to encrypt it and I get this error
javax.crypto.IllegalBlockSizeException: input length must be a multiple of 16 when with padded decrypting cipher

Thanks in advance for your help :)

The error message seems pretty self-explanatory, and the explanation in the javadocs for this exception is straight to the point. Are what part you not understand?

Tags: Java

Similar Questions

Decryption XML string question - javax.crypto.IllegalBlockSizeException?
I am new to this and try to encrypt and decrpyt one string XML with AES and Base64 en_decoder but I get the following error. I don't know what the problem is. Without using a decoder and encoder Base64, so it's good, but I need to.

Error: javax.crypto.IllegalBlockSizeException: input length must be a multiple of 16 when with padded decrypting cipher

Appreciate all the help!

My simple program
===============
Encryption by aesCipher;

try {}

Byte [secretKey] is Base64.decode ("fqqwZu9U1PCAZQUX + 3nUTA is");.
SecretKeySpec keySpec = new SecretKeySpec (secretKey, "AES");

Create the encryption algorithm
aesCipher = Cipher.getInstance("AES/ECB/PKCS5Padding");

Initialize the encryption for the encryption algorithm
aesCipher.init (Cipher.ENCRYPT_MODE, keySpec);

Byte [] plaintext = "< RQLastName > TESTLastname < / RQLastName > < RQFirstName > TestFirstName < / RQFirstName > '. getBytes();

Encrypt the plaintext
Byte [] ciphertext = aesCipher.doFinal (cleartext);

Base64encodedCiphertext string = Base64.encode (ciphertext);

System.out.println (base64encodedCiphertext);

Initialize the same cipher for the decryption algorithm
aesCipher.init (Cipher.DECRYPT_MODE, keySpec);

Byte [] base64decodedCiphertext = Base64.decode (base64encodedCiphertext);

Decrypt the ciphertext
Byte [] cleartext1 = aesCipher.doFinal (base64decodedCiphertext); <-exception on that line

System.out.println (new String (cleartext1));

clear and cleartext1 are the same.
}
catch (Exception ex) {}
ex.printStackTrace ();
}

================
I use Base64.java, written by Stephen investigation.

public class {Base64
public static byte [] encodeData;
public static String charSet =
"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789 + /";

{public static
encodeData = new ubyte [64];
for (int i = 0; i < 64; i ++) {}
c byte = (bytes) charSet.charAt (i);
encodeData [i] = c;
}
}

private Base64() {}

/**
* base64 encode a string
@param s the string ascii coding
* @returns the base64 encoded result
*/

Public Shared Function
Encode(String s) throws Exception {}
Return encodes (s.getBytes ("UTF8"));
}

/**
* base64 encode a byte array
@param CBC byte array to encode
* @returns the base64 encoded result
*/

Public Shared Function
Encode (byte [] src) {}
return encode (src, 0, src.length);
}

/**
* base64 encode a byte array
@param CBC byte array to encode
@param start starting index
@param len the number of bytes
* @returns the base64 encoded result
*/

Public Shared Function
Encode (byte [], int start, int length src) {}
Byte [] dst = new byte [(length+2)/3 * 4 + length: 72];
int x = 0;
int dstIndex = 0;
Int State = 0;     What jacquard tank
old int = 0;     previous byte
int len = 0;     length decoded so far
int max = length + start;
for (int srcIndex = start; srcIndex < max; srcIndex ++) {}
x = src [srcIndex];
switch (++ State) {}
case 1:
DST [dstIndex ++] = encodeData [(x >> 2) & 0x3f];
break;
case 2:
DST [dstIndex ++] = encodeData [((vieux << 4) & 0 x 30)]
| [((x >> 4) & 0xf)] ;
break;
case 3:
DST [dstIndex ++] = encodeData [((vieux << 2) & 0x3C)]
| [((x >> 6) & 0x3)] ;
DST [dstIndex ++] = encodeData [x & 0x3F;
State = 0;
break;
}
old = x;
If (++ len > = 72) {}
DST [dstIndex ++] = (byte) "\n";
Len = 0;
}
}

/*
* now to clean the end bytes
*/

switch (State) {}
case 1: dst [dstIndex ++] = encodeData [(vieux << 4) & 0 x 30];
DST [dstIndex ++] = (byte) '=';
DST [dstIndex ++] = (byte) '=';
break;
case 2: dst [dstIndex ++] = encodeData [(vieux << 2) & 0x3c];
DST [dstIndex ++] = (byte) '=';
break;
}
return new String (dst);
}

/**
* A Base64 decoder. This implementation is slow, and
* does not handle wrapped lines.
* The output is not set if there are errors in the entry.
s @param a Base64 encoded string
* @returns the byte array eith the decoded result
*/

public static ubyte]
Decode (String s) {}
int end = 0;     final State
If (s.endsWith ("=")) {}
end ++;
}
If (s.endsWith ("is")) {}
end ++;
}
int len = (s.length () + 3) / 4 * 3 - end;
Byte [] result = new ubyte [len];
int dst = 0;
try {}
for (CBC int = 0; src < s.length (); src ++) {}
code int = charSet.indexOf (s.charAt (src));
If (code ==-1) {}
break;
}
switch (src %4) {}
case 0:
result [dst] = (byte) (code < < 2);
break;
case 1:
result [dst ++] | = (byte) ((code >> 4) & 0x3);
result [dst] = (byte) (code < < 4);
break;
case 2:
result [dst ++] | = (byte) ((code >> 2) & 0xf);
result [dst] = (byte) (code < < 6);
break;
case 3:
result [dst ++] | = (byte) (code & 0x3f);
break;
}
}
} catch (ArrayIndexOutOfBoundsException e) {}
return the result;
}

/**
* Test the encoder and the decoder.
* Call as < code > Base64 [channel] < code >.
*/

public static void
survey of hand (String [] args) {Exception
System.out.println ("encode:" + args [0] + ""-> () "")
+ encode(args[0]) + ")");
System.out.println ("decode:" + args [0] + ""-> () "")
+ New String (decode(args[0])) + ")");
}
}
903857 wrote:
I use Base64.java, written by Stephen investigation.

Your code works when you use a decent Base64 encoder/decoder (for example http://commons.apache.org/codec/) then throw the investigation one.

Note: block ECB is not secure because it allows counterfeit by splicing of the ciphertext. You must use one of the methods of feedback as a random IV with CBC.

PS one obvious fault with the encoder/decoder Uhler Base64 is that the encoder adds a new line after 72 characters but the decoder does not correctly remove the new line. He is the likely cause of the IllegalBlockSizeException.

AutoSuggest customization (of input length)
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Best regards, Marko
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Instead of
```
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suggestedItems.add(a);
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After upgrade during the trials of HR,
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Dear people,
I use Oracle 10 g when trying to create a form. I have a namesly of PASSWORD.when user text field to provide the password length must be greater than 6 a message alert will be lifted out.accordingly I wrote the following code in WHEN-VALIDATE-ITEM as follows.
```
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Regarding
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You can try you code like below.
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Here's my problem, I have a java card containing a public and private key. I'm trying to extract the public key from the card, so the first thing I do is to get the module and the exponent of the map and regenerate a public key with her. Then I try to decipher an array of bytes previously encrypted and I get data must begin with error to zero. Here's the part of my code that does this job

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          byte[] temp = r.getData();
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          modulus2[0] = (byte)0x00;
          for(int i = 1 ; i <= modulus.length; i++){
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                    (byte)0xA8, (byte)0x7C, (byte)0x26, (byte)0xB6, (byte)0xBE, (byte)0xA5, 
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                    (byte)0x7B, (byte)0x11, (byte)0x6E, (byte)0x87, (byte)0xD4, (byte)0x97, 
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On my card, it's a RSA_CRT algorithm, does this creat any problem?
I added a 0 x 00 at the beggening of the module because that feels a bit 511 key because it is negative or something, it's ok to do? (It was a previous bug I had and got this solution on the forum BadPaddingException problem )
The key on my card must be a 2048 bit size key but my pubKey.tostring () tells me that.
Public key RSA Sun, 512-bit. What's normal?

Thx for your help cheers!

Published by: FrancisOL on March 19, 2012 10:15

Published by: sabre150 on March 19, 2012 17:20

Moderator action: adding the tags [code] to make the code readable.

Sorry, I can't help. The values you have posted are inconsistent and you haven't posted the public exponent key...

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When the user tries to rename this article, he has failed to enter more than 5 characters (see attached img02.png).

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I was not able to find the right attribute, because the attribute of cells ATTR_LABEL_TEXT_LENGTH (which seems more or less what I'm looking for) is "not definable.

You have found an omission in documentation. You can use ATTR_MAX_ENTRY_LENGTH and ATTR_MAX_ENTRY_CHARS with SetTreeCellAttribute and SetTreeItemAttribute to set the max entry for a cell of the tree.

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Hello

I need validation on the text field, like I should be able to single string entered in the text field. for examples - if I entered 'new test', it must raise the error. I should be able to enter only 'test '. (single channel)

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1002384 wrote:

Thanks for the reply, but I'm still confused, I put this "not regexp_like (: Px_ITEM, ' [[: space :]]')]])" in PL/SQL Expression validation in the Expression of Validation 1, but I have to put in exp2.

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Hello world

I have a problem when creating user preprocess eventhandler.
I searched this problem in OTN, but I couldn't find any solutino.
My code is:

RandomPasswordGeneratorImpl randomPasswordGenerator = new RandomPasswordGeneratorImpl();
Char [pwd] = randomPasswordGenerator.generatePassword (new User (null));
Password String = new String (pwd);
System.out.println ("random password:" + password);
Parameters.put ("usr_password", password);

When I run, the log a failure it is below:

< error > < XELLERATE. ACCOUNTMANAGEMENT > < BEA-000000 > < class/method: tcDefaultDBEncryptionImpl/decrypt some problems: input length must be a multiple of 16 when with padded decrypting cipher
javax.crypto.IllegalBlockSizeException: input length must be a multiple of 16 when with padded decrypting cipher
at com.sun.crypto.provider.SunJCE_f.b(DashoA13*..)
at com.sun.crypto.provider.SunJCE_f.b(DashoA13*..)
at com.sun.crypto.provider.AESCipher.engineDoFinal(DashoA13*..)
at javax.crypto.Cipher.doFinal(DashoA13*..)
at com.thortech.xl.crypto.tcDefaultDBEncryptionImpl.decrypt(tcDefaultDBEncryptionImpl.java:219)
at com.thortech.xl.crypto.tcCryptoUtil.decrypt(tcCryptoUtil.java:122)
at com.thortech.xl.crypto.tcCryptoUtil.decrypt(tcCryptoUtil.java:200)
at oracle.iam.platform.utils.crypto.CryptoUtil.getDecryptedPassword(CryptoUtil.java:136)
at oracle.iam.transUI.impl.handlers.user.UpdateUsrPwdFields.updateUserPwdFields(UpdateUsrPwdFields.java:124)
at oracle.iam.transUI.impl.handlers.user.UpdateUsrPwdFields.execute(UpdateUsrPwdFields.java:71)
at oracle.iam.platform.kernel.impl.OrchProcessData.runPreProcessEvents(OrchProcessData.java:898)
at oracle.iam.platform.kernel.impl.OrchProcessData.runEvents(OrchProcessData.java:634)
at oracle.iam.platform.kernel.impl.OrchProcessData.executeEvents(OrchProcessData.java:227)
at oracle.iam.platform.kernel.impl.OrchestrationEngineImpl.resumeProcess(OrchestrationEngineImpl.java:665)
at oracle.iam.platform.kernel.impl.OrchestrationEngineImpl.process(OrchestrationEngineImpl.java:435)
at oracle.iam.platform.kernel.impl.OrchestrationEngineImpl.orchestrate(OrchestrationEngineImpl.java:381)
at oracle.iam.platform.kernel.impl.OrchestrationEngineImpl.orchestrate(OrchestrationEngineImpl.java:334)
at oracle.iam.identity.usermgmt.impl.UserManagerImpl.create(UserManagerImpl.java:653)
at oracle.iam.identity.usermgmt.api.UserManagerEJB.createx (unknown Source)
at sun.reflect.NativeMethodAccessorImpl.invoke0 (Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)

Do you have a suggestion about this problem?

Thank you.

Kind regards.

Published by: Carole Huseyin on June 27, 2012 03:35
You will probably pass password like this:

Parameters.put ("usr_password", tcCryptoUtil.encrypt (password, "DBSecretKey", "UTF - 8"));

create the example simple encrypt/decrypt string - but without success
Being a newbie crypt I'm trying to build an example of simple string encryption/decryption, but somehow the decrypted result differs too much :-)
Can someone tell me the error in my reasoning? Thank you!

import java.security.InvalidKeyException;
import java.security.NoSuchAlgorithmException;
import java.security.NoSuchProviderException;
Import javax.crypto.BadPaddingException;
Import javax.crypto.Cipher;
Import javax.crypto.IllegalBlockSizeException;
Import javax.crypto.NoSuchPaddingException;
Import javax.crypto.spec.SecretKeySpec;
public class dum_8_decrypt64 {}

Public Shared Sub main (String [] args) throws NoSuchAlgorithmException, NoSuchProviderException, NoSuchPaddingException, InvalidKeyException, IllegalBlockSizeException, BadPaddingException {}

Dim input As String = "Hello, world!";
String key = "nv93h50sk1zh508v";
SecretKeySpec key;
Encryption cipher = null;
Encryption by dcipher = null;
The string result, dresult;

key = SecretKeySpec (passkey.getBytes (new), "AES");

encryption = Cipher.getInstance ("AES/ECB/PKCS5Padding", "Sunjce())");
Cipher.init (Cipher.ENCRYPT_MODE, Key);

result = new String (cipher.doFinal (input.getBytes ()));

System.out.println ("encrypted-> string" + result + "<-");

dcipher = Cipher.getInstance ("AES/ECB/PKCS5Padding", "Sunjce())");
dcipher.init (Cipher.DECRYPT_MODE, Key);
dresult = new String (cipher.doFinal (result.getBytes ()));

System.out.println ("decrypted-> string" dresult + "<-");

}
}

Output:

Encrypted-> string.
p ÿƒG¬µ? (.« <----------

The decrypted-> string Qbkuu $Ñ 5oaw'?) ; Yeutdp3wvk < -.
Encrypted data is binary.

String is not a container for binary data.

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See you soon

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Hi Dave,.

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I use MAX (differential setting) to monitor an input channel analog (ai71) through a PCI-6225 card with an SCB-68. The voltage displayed in this MAX sometimes regular 10.6 volts and sometimes intermittent noise 0 to 10.6 volts or vague angular. I watched the disintegration of noise and waves to zero. The voltage displayed in MAX is (seemingly at random) changes when a voltmeter is used to measure the voltage between pins 1 and 35 (with no wire signal)

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Windows Movie Maker - have 6 minutes of audio spliced, I would like to publish in the form of an audio clip with no video. I heard that this is possible, and it all works, the 'framework' includes 6 more minutes of space without air circulation that gets compiled with the planned 6 minutes of audio matching 12 minutes of audio rather than the 6 minutes. Is it possible to MovieMaker 'See' the end of my audio instend, to include 12 minutes in length with it default? Should I include photos or video for the project to publish only 6 minutes, instead of the 12 minutes? I hope this makes sense...

I assume you are using Vista Movie Maker 6 and not Live Movie Maker?

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I was wondering... If you import the .wma file saved in Movie Maker and drag
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Perhaps you could he split and right click Delete unwanted 6 minutes and
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Divide... drag the playback at the end of the music and the type indicator... CTRL + L
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Tip: Unlike clips video... audio clips can be dragged to the timeline, so don't forget
they are dragged all the way to the left to prevent air from dead at the beginning or
between the clips.

It may be worth trying to go to... Tools / Options / compatibility... tab and the left click
the "All default settings" button before the Save.

And... If the clips audio source are not the. WMA format... it could be a useful
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So I asked a number of questions today. Always be up to speed on vCO.
The workflow I created links in a PowerShell module that I wrote that tell a restAPI.
The client provides an Vc:VirtualMachine object and am now able to collect the name of the Cluster, vcenter hostname of the virtual machine.
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Thank you very much! great community!

I think that I thought about it.

the input parameter must be of type String.

the presentation will be a predefined list of answers which will be an array.

Thanks again!

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Hi, I'm trying to record a radio show that we do. I connected to a USB sound card main mix and can see the hearing levels, but they are far too high. I want to be able to use the mixer and just go in the orange LEDs so want to reduce the level of entry into hearing, rather than reducing the fader master on the desktop. I tried to use the effects Rack and make one - Cut of 6db. While this reduces the levels on the great indicator of level, it does nothing for the little meters on the track or level which is actually registered. How can I reduce the level which is registered?
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As the so-called ryclark, hearing simply records what is called by your interface - input levels must be adapted to the interface, so that you use here is the crucial question.

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