Help with large key performance

HI ,
I have a to build 3 Z DB table and in the table one of the field is (application ID )
is in size char 255 and it's table key (and i cant change this fields) .
the tables
Table 1
mandt type mandt     " key
user   type bname    " key
application_id type char255   " key
date...
Table 2
mandt type mandt     " key
user   type bname    " key
application_id type char255   " key
application_ver type char10   " key
additional fields (not keys).
Table 3
mandt type mandt     " key
user   type bname    " key
application_id type char255   " key
application_ver type char10    " key
app_additonl    type char50     " key
additional fields (not keys).
The problem is that when i activate the table i get warning of performance
since the key is larger then 120 charcter .
the table num 3 can have more than 1000000 recoreds .
and i can have lot of read access to the table
Regards
JOy

Hi ,
Do u suggest to use the calculate Hash for char with MD5 algorithm or SH1 ,or there is other recommended scenario i that take the performance side in the picture too since the performance side is very impotent to my design .
or there is other ideas/ recommendation to my design?
Best Regards
Joy
Edited by: Joy Stpr on Jul 29, 2009 8:51 AM

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�� sr com.sun.rsajca.JSA_RSAPublicKeyrC�� xr com.sun.rsajca.JS_PublicKey~5< ~��% L thePublicKeyt Lcom/sun/rsasign/p;xpsr com.sun.rsasign.anm��9�[ [ at [B[ bq ~ xr com.sun.rsasign.p��(!g�� L at Ljava/lang/String;[ bt [Ljava/lang/String;xr com.sun.rsasign.c�"dyU�| xpt Javaur [Ljava.lang.String;��V��{G xp q ~ ur [B��T� xp ��ccR}o��[!#I��lo��
��^"`8�|��Z>��&
d ��"B��
^5��a��jw9��D��D�)�*3/h��7�|��I�d�$�4f�8_�|��yuq ~
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Luis Navarro Nu�ez
Santiago.
Chile.
South America.

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I need help with this <<removed by moderator>>
When i try to do an insert "A" into a DB table, the transaction fills the info on creation mode, but is not doing the same at modification mode.
Here i send the insert, i don't if the problems comes from sintaxis:
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Moderator Message: Gun-to-the-head-deadline removed
Edited by: kishan P on Mar 31, 2011 12:24 PM

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Thanks,
Tim Mowlem

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Here's what I come up when I played with your code.
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import java.awt.event.*;
import java.awt.geom.*;
import java.util.Random;
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Use select query to select the fields & display them.
In the following code i've selected only a single field in select query but u can do it for more than 1 & proceed similarly.i've tried it before using this code.
SELECT WERKS
         NAME1
         FROM T001W
         INTO TABLE ITEMP
         WHERE IWERK = 'M011'.
CALL FUNCTION 'F4IF_INT_TABLE_VALUE_REQUEST'
       EXPORTING
              DDIC_STRUCTURE   = ' '
            RETFIELD         = 'WERKS'
              PVALKEY          = ' '
              DYNPPROG         = ' '
              DYNPNR           = ' '
              DYNPROFIELD      = ' '
              STEPL            = 0
              WINDOW_TITLE     =
              VALUE            = ' '
           VALUE_ORG        = 'S'
              MULTIPLE_CHOICE = ' '
              DISPLAY          = ' '
              CALLBACK_PROGRAM = ' '
              CALLBACK_FORM    = ' '
       TABLES
            VALUE_TAB        = ITEMP
              FIELD_TAB        =
           RETURN_TAB       = T_RETURN
              DYNPFLD_MAPPING =
         EXCEPTIONS
              PARAMETER_ERROR = 1
              NO_VALUES_FOUND = 2
              OTHERS           = 3
IF SY-SUBRC <> 0.
MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
        WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.
ENDIF.
S_WERK-LOW = T_RETURN-FIELDVAL.
Hope this helps.
Reward if helpful.
Regards,
Sipra

Need help with generating keys from xml

Hello,
I am just learning about JCE and am haveing some problems with implementing a basic program.
I have the following information:
<RSAKeyValue>
<Modulus>Base64EncodedString</Modulus>
<Exponent>Base64EncodedString</Exponent>
<P>Base64EncodedString</P>
<Q>Base64EncodedString</Q>
<DP>Base64EncodedString</DP>
<DQ>Base64EncodedString</DQ>
<InverseQ>Base64EncodedString</InverseQ>
<D>Base64EncodedString</D>
</RSAKeyValue>
From which I need to construct a public and private key. I am using RSA algorithm for the encrypting and decrypting. I am using the org.bouncycastle.jce.provider.BouncyCastleProvider provider. Any help would be greatly appreciated.
My questions are:
1) Is it possible to create the public and private key from this data?
2) How can I construct a public and private key from this data.
Thank you in advance.
Sunit.

Thanks for your help...I am still having problems.
I am now creating the public and private keys. I am generating the public exp, modulus, private exp, and the encrypted text from another source.
so my questions are:
1) How do I verfiy that the private and public keys that I generate are valid?
2) How do I get the decrypted text back in a readable form?
3) the decrypted text should read "ADAM"
Here is a test I wrote:
_________________STARTCODE_____________________
import java.security.*;
import java.security.spec.*;
import javax.crypto.*;
import javax.crypto.spec.*;
import java.math.BigInteger;
import org.bouncycastle.jce.provider.BouncyCastleProvider;
public class CryptTester
     protected Cipher encryptCipher = null;
     protected Cipher decryptCipher = null;
     private KeyFactory keyFactory = null;
     protected PublicKey publicKey = null;
     protected PrivateKey privateKey = null;
     private RSAPublicKeySpec publicKeySpec = null;
     private RSAPrivateKeySpec privateKeySpec = null;
     public CryptTester()
          /* Create Cipher for asymmetric encryption (
          * e.g., RSA),
          try
               encryptCipher = Cipher.getInstance("RSA", "BC");
               System.out.println("Successfully got encrypt Cipher" );
               decryptCipher = Cipher.getInstance("RSA", "BC");
               System.out.println("Successfully got decrypt Cipher" );
               keyFactory = KeyFactory.getInstance("RSA" , "BC");
               System.out.println("Successfully got keyFactory" );
          }catch ( NoSuchAlgorithmException nsae)
               System.out.println("Exception1: " + nsae.toString() );
          catch ( NoSuchPaddingException nspe)
               System.out.println("Exception2: " + nspe.toString() );
          catch ( java.security.NoSuchProviderException nspe)
               System.out.println("Exceptiont6: " + nspe.toString() );
          /* Get the private and public keys specs
          BigInteger publicMod = new BigInteger ("86e0ff4b9e95bc6dcbfd6673b33971d4f728218496adcad92021923a9be815ddb7ecf17c06f437634c62fa999a293da90d964172a21d8ce74bd33938994fbd93377f7d83ce93d523782639c75221a3c91b53927a081b2b089a61770c6d112d78d5da8a6abc452d39a276787892080d6cf17dd09537c1ec5551d89567345068ef", 16);
          BigInteger publicExp = new BigInteger ("5");
          BigInteger privateExp = new BigInteger ("50ed65fa2bf3710ead980a456b88dde62de4e0e9", 16);
          publicKeySpec = new java.security.spec.RSAPublicKeySpec( publicMod, publicExp );
          privateKeySpec = new java.security.spec.RSAPrivateKeySpec( publicMod, privateExp);
          try
               privateKey = keyFactory.generatePrivate(privateKeySpec);
               publicKey = keyFactory.generatePublic(publicKeySpec);
          }catch ( InvalidKeySpecException ivse)
               System.out.println("Exception3: " + ivse.toString() );
          try
          * initialize it for encryption with
          * recipient's public key
               encryptCipher.init(Cipher.ENCRYPT_MODE, publicKey );
               decryptCipher.init(Cipher.DECRYPT_MODE, privateKey );
     }catch ( InvalidKeyException ivse)
               System.out.println("Exception4: " + ivse.toString() );
     public String getPublicKey()
          //return new String(publicKey.getEncoded());
          return publicKey.toString();
     public String getPrivateKey()
     //          return new String(privateKey.getEncoded());
          return privateKey.toString();
     public String encryptIt(String toencrypt)
          * Encrypt the message
          try
               byte [] result = null;
               try
                    result = encryptCipher.doFinal(toencrypt.getBytes());
               catch ( IllegalStateException ise )
                    System.out.println("Exception5: " + ise.toString() );
               return new String(result);
          }catch (Exception e)
               e.printStackTrace();
          return "did not work";
     public String decryptIt(String todecrypt)
                    * decrypt the message
          try
               byte [] result = null;
               try
                    result = decryptCipher.doFinal(todecrypt.getBytes());
               catch ( IllegalStateException ise )
                    System.out.println("Exception6: " + ise.toString() );
               return new String(result);
          }catch (Exception e )
               e.printStackTrace() ;
          return "did not work";
     public static void main(String[] args)
          try
          Security.addProvider(new BouncyCastleProvider());
          CryptTester tester = new CryptTester();
          String encrypted = "307203c3f5827266f5e11af2958271c4";
          System.out.println("Decoding string " + encrypted + "returns : " + tester.decryptIt(encoded) );
          } catch (Exception e)
               e.printStackTrace();
_________________ENDPROGRAM_____________________

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