Examples of java.security.Signature.initSign()

java.security.Signature.initSign()
Initialize this object for signing. If this method is called again with a different argument, it negates the effect of this call. @param privateKey the private key of the identity whose signatureis going to be generated. @exception InvalidKeyException if the key is invalid.

            }
        }


        if (random != null)
        {
            sig.initSign(key, random);
        }
        else
        {
            sig.initSign(key);
        }

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        {
            sig.initSign(key, random);
        }
        else
        {
            sig.initSign(key);
        }


        if (extensions != null)
        {
            tbsGen.setExtensions(new X509Extensions(extOrdering, extensions));

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    {
      Signature ECCsig = Signature.getInstance("SHA1withECDSA", "BC");
      
      if( key instanceof ECPrivateKey ){
        
        ECCsig.initSign((ECPrivateKey)key);
        
      }else if( key instanceof ECPublicKey ){
        
        ECCsig.initVerify((ECPublicKey)key);

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            System.arraycopy( new SHA1Simple().calculateHash(key_block.getBytes()), 0, req, 8, 20 );
            
            Signature  sig = Signature.getInstance("MD5withRSA" );
            
            sig.initSign( key );
            
            sig.update( req );
            
            dhts[1].getTransport().getLocalContact().sendKeyBlock(
              new DHTTransportReplyHandlerAdapter()

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        catch (NoSuchAlgorithmException e)
        {
            sig = Signature.getInstance(signatureAlgorithm, provider);
        }


        sig.initSign(signingKey);


        try
        {
            ByteArrayOutputStream   bOut = new ByteArrayOutputStream();
            DEROutputStream         dOut = new DEROutputStream(bOut);

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            }
        }


        if (random != null)
        {
            sig.initSign(key, random);
        }
        else
        {
            sig.initSign(key);
        }

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        {
            sig.initSign(key, random);
        }
        else
        {
            sig.initSign(key);
        }


        TBSCertificateStructure tbsCert = tbsGen.generateTBSCertificate();


        try

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            }
        }


        if (random != null)
        {
            sig.initSign(key, random);
        }
        else
        {
            sig.initSign(key);
        }

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        {
            sig.initSign(key, random);
        }
        else
        {
            sig.initSign(key);
        }


        if (extensions != null)
        {
            tbsGen.setExtensions(new X509Extensions(extOrdering, extensions));

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        sig = X509Util.getSignatureInstance(sigName);


        if (random != null)
        {
            sig.initSign(key, random);
        }
        else
        {
            sig.initSign(key);
        }

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