java.security.InvalidKeyException: illegal key size

Similar Questions

• java.security.InvalidKeyException:Elgamal

  I am trying to encrypt and decrypt Elgaman but I am getting error of

  Erick: Exception: java.security.InvalidKeyException: illegal for size or default parameters
  java.security.InvalidKeyException: illegal for size or default parameters
  at javax.crypto.Cipher.a(DashoA13*..)
  at javax.crypto.Cipher.init(DashoA13*..)
  at org.students.RSA2.testGP(RSA2.java:71)
  at org.students.RSA2.performTest(RSA2.java:277)
  at org.bouncycastle.util.test.SimpleTest.perform (unknown Source)
  at org.bouncycastle.util.test.SimpleTest.runTest (unknown Source)
  at org.bouncycastle.util.test.SimpleTest.runTest (unknown Source)
  at org.students.RSA2.main(RSA2.java:291)

  i installed the JDK 5.0 Update 22 and download the jce from 
  http://www.oracle.com/technetwork/java/javase/downloads/index-jdk5-jsp-142662.html and installed in 
  C:\Program Files\Java\jdk1.5.0_22\jre\lib\security
  but It give me same error .Please help me. Thanks in advance
  
  Edited by: user11357554 on Apr 17, 2011 2:06 PM
  
  Edited by: EJP on 18/04/2011 11:41: added code tags. Please use them.
  
  Edited by: user11357554 on Apr 22, 2011 9:47 AM                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            

  user11357554 wrote:
  I installed the JDK 5.0 Update 22 and download the jce to
  http://www.Oracle.com/technetwork/Java/javase/downloads/index-JDK5-JSP-142662.html and installed in the
  C:\Program Files\Java\jdk1.5.0_22\jre\lib\security

  I don't think you can have followed installation instructions "unlimited strength". You must decompress the unlimited 'force' file and copy the contents of the subdirectory of PvE is directly in the C:\Program Files\Java\jdk1.5.0_22\jre\lib\security directory.

  PS why are you using JDK1.5?
  PS - 1. When you convert a string to/from bytes ALWAYS specify the character encoding as the default character encoding is probably very different for different OS, OS variants, and variants of Java.
  PS - 2. Never use string as a container for the binary data and ciphertext IS binary data.

• MD5. DBMS_CRYPTO. Hash vs java.security.MessageDigest

  Hello
  I have xml in a CLOB column.
  I want to get MD5 with DBMS_CRYPTO. Hash:
  (Oracle Database 10g Enterprise Edition Release 10.2.0.5.0)
  

  SET SERVEROUTPUT ON
  DECLARE
  
    vXml_ CLOB;
    tam NUMBER;
  
    l_hash   raw(2000);
    l_hashCa   varchar2(2000);
  
  BEGIN
  
    SELECT COL, dbms_lob.getlength(COL) AS TAMA
    INTO vXml_, tam
    FROM BORRAME 
    WHERE ID = 1;
  
    l_hash := DBMS_CRYPTO.Hash (
       vXml_,
       DBMS_CRYPTO.HASH_MD5);
  
    l_hashCa := lower(rawtohex(l_hash));
  
    dbms_output.put_line('Size: ' || tam);
    dbms_output.put_line('Hash: ' || l_hash);
    dbms_output.put_line('Hash-1: ' || l_hashCa);
  
  END;
  /
  Size: 9902
  Hash: 36D0C059092B450C0598EBFECC015FF5
  Hash-1: 36d0c059092b450c0598ebfecc015ff5

  I need get MD5 even with java.security.MessageDigest.
  Create
  

  SET def off
  create or replace java source named "MD5" as 
  import java.security.MessageDigest;
  import java.security.NoSuchAlgorithmException;
  import java.sql.Clob;
  import java.sql.Blob;
   
  public class MD5 {
    public static String getMD5HashFromClob(Clob inhalt) throws Exception{
  
      MessageDigest algorithm;
      StringBuffer hexString;
      String s;
      String salida = null;
      int i;
      byte[] digest;
  
      String tepFordigest = inhalt.getSubString(1L, (int)inhalt.length());
  
      try {
          algorithm = MessageDigest.getInstance("MD5");
          algorithm.reset();
          algorithm.update(tepFordigest.getBytes());
  
          digest = algorithm.digest();
  
          hexString = new StringBuffer();
          for (i = 0; i < digest.length; i++) {
              s = "0" + Integer.toHexString(0xFF & digest);
  
  hexString.append(s.substring(s.length() - 2));
  
  }
  
  
  
  salida = hexString.toString();
  
  } catch (java.security.NoSuchAlgorithmException nsae) {
  
  salida = "No es posible cifrar MD5";
  
  }
  
  return salida;
  
  
  
  } 
  
  }
  
  /
  
  sho err
  
  
  
  
  
  
  
  alter java source "MD5" compile
  
  /
  
  sho err
  
  
  
  CREATE OR REPLACE FUNCTION get_md5_CLOB(inhalt CLOB) RETURN VARCHAR2 DETERMINISTIC
  
  AS LANGUAGE JAVA
  
  name 'MD5.getMD5HashFromClob(java.sql.Clob) return java.lang.String';
  
  /
  Now, i use:
  SET SERVEROUTPUT ON
  DECLARE
  
  
  vXml_ CLOB.
  TAM NUMBER;
  
  
  l_hash raw (2000);
  l_hashCa varchar2 (2000);
  
  
  BEGIN
  
  
  SELECT COL, dbms_lob.getlength (COL) AS TAMA
  IN vXml_, tam
  OF BORRAME
  WHERE ID = 1;
  
  
  l_hash: = get_md5_CLOB (vXml_);
  
  
  l_hashCa: = lower (rawtohex (l_hash));
  
  
  dbms_output.put_line (' size: ': tam);
  dbms_output.put_line ('Hash: ' | l_hash);
  dbms_output.put_line ('Hash-1: ' | l_hashCa);
  
  
  END;
  /
  Size: 9902
  Hash: 77E252BC18244BEDDE13072BC3918DBF
  Hash-1: 77e252bc18244bedde13072bc3918dbf
  Why are they different???:
  36d0c059092b450c0598ebfecc015ff5
  77e252bc18244bedde13072bc3918dbf                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            
  			 
  >
  Can you think of another mistake?
  >
  Not an error but the character set used by Java (UTF-16) may be different. The Crypto package always converts all AL32UTF8 before you chop it up, so if the Java character set is different the hash may be different.
  If you look at the technical header for DBMS_CRYPTO package it shows it's not:
  >
  -Front of encryption, hashing or hashing key, the CLOB data type is
  -AL32UTF8 converted. This allows cryptographic data
  -transferred and between different databases
  -Character between the character set change sets, and
  -separate processes (for example, Java programs).
  --
  		   

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  Connector.Open ("socket://10.91.40.120:1883"); ")

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  I am trying to build a native bundle, especially for mac os x, but also in windows. And in both environments the .app, .dmg, .exe download generated correctly, but when I run it, I get a lot of exceptions java.security.NoSuchAlgorithmException. For example:
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• have several Java security warnings whenever I try to open a game of Pogo... "the required version of Java 1.6.0 - oem is not the latest and may not contain the latest updatesw of security...".

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