Package javax.crypto

Examples of javax.crypto.Cipher

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            Security.addProvider(bp);


            //Cipher decrypt = Cipher.getInstance("DES");
            //SecretKey key = new SecretKeySpec(pass.getBytes(), "DES");
            Cipher decrypt = Cipher.getInstance("DESede/ECB/NoPadding", "BC");

            SecretKey key = new SecretKeySpec(pass.getBytes(), "DESede");

            decrypt.init(Cipher.DECRYPT_MODE, key);


            // decode base64 zu bytes                               
            byte[] dec = new sun.misc.BASE64Decoder().decodeBuffer(str);

            // decrypt
            byte[] utf8 = decrypt.doFinal(dec);//->javax.crypto.IllegalBlockSizeException: data not block size aligned

            // decode mit utf-8
            return new String(utf8, SOSCrypt.charset).trim();

        } catch (Exception e) {         
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            Security.addProvider(bp);

            //Cipher encrypt = Cipher.getInstance("DES");           
            //SecretKey key = new SecretKeySpec(pass.getBytes(), "DES");
           
            Cipher encrypt = Cipher.getInstance("DESede/ECB/NoPadding", "BC");

            SecretKey key = new SecretKeySpec(pass.getBytes(), "DESede");

            encrypt.init(Cipher.ENCRYPT_MODE, key);

            // encode string mit utf8           
            byte[] utf8 = str.getBytes(SOSProfileCrypt.charset);

            // encrypt
            byte[] enc = encrypt.doFinal(utf8);

            // encode bytes zu base64
            return new sun.misc.BASE64Encoder().encode(enc);

        } catch (Exception e) {         
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          // nur f�r jre 1.3.x n�tig
            Provider bp = new org.bouncycastle.jce.provider.BouncyCastleProvider();
            Security.addProvider(bp);
           
            Cipher decrypt = Cipher.getInstance("DESede/ECB/NoPadding", "BC");
            SecretKey key = new SecretKeySpec(pass.getBytes(), "DESede");
            decrypt.init(Cipher.DECRYPT_MODE, key);
           
            // decode base64 zu bytes                               
            byte[] dec = new sun.misc.BASE64Decoder().decodeBuffer(str);
            // decrypt
            byte[] utf8 = decrypt.doFinal(dec);//->javax.crypto.IllegalBlockSizeException: data not block size aligned
            // decode mit utf-8
            return new String(utf8, SOSProfileCrypt.charset).trim();

        } catch (Exception e) {         
         
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            Security.addProvider(bp);

            //Cipher encrypt = Cipher.getInstance("DES");           
            //SecretKey key = new SecretKeySpec(pass.getBytes(), "DES");
           
            Cipher encrypt = Cipher.getInstance("DESede/ECB/NoPadding", "BC");

            SecretKey key = new SecretKeySpec(pass.getBytes(), "DESede");

            encrypt.init(Cipher.ENCRYPT_MODE, key);

            // encode string mit utf8           
            byte[] utf8 = str.getBytes(SOSCrypt.charset);

            // encrypt
            byte[] enc = encrypt.doFinal(utf8);

            // encode bytes zu base64
            return new sun.misc.BASE64Encoder().encode(enc);

        } catch (Exception e) {
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            Security.addProvider(bp);


            //Cipher decrypt = Cipher.getInstance("DES");
            //SecretKey key = new SecretKeySpec(pass.getBytes(), "DES");
            Cipher decrypt = Cipher.getInstance("DESede/ECB/NoPadding", "BC");

            SecretKey key = new SecretKeySpec(pass.getBytes(), "DESede");

            decrypt.init(Cipher.DECRYPT_MODE, key);


            // decode base64 zu bytes                               
            byte[] dec = new sun.misc.BASE64Decoder().decodeBuffer(str);

            // decrypt
            byte[] utf8 = decrypt.doFinal(dec);//->javax.crypto.IllegalBlockSizeException: data not block size aligned

            // decode mit utf-8
            return new String(utf8, SOSCrypt.charset).trim();

        } catch (Exception e) {         
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    //final Provider sunJce = new com.sun.crypto.provider.SunJCE();
    //Security.addProvider(sunJce);

    final SecretKeySpec skeySpec = new SecretKeySpec(key, "Blowfish");
      
    final Cipher cipher = Cipher.getInstance("Blowfish/ECB/PKCS5Padding");
    cipher.init(mode, skeySpec);

    final ByteArrayOutputStream bos = new ByteArrayOutputStream();
    final ByteArrayInputStream bis = new ByteArrayInputStream(input);
    final CipherOutputStream cos = new CipherOutputStream(bos, cipher);
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        ASN1InputStream asn1inputstream = new ASN1InputStream(bytearrayinputstream);
        DERObject derobject = asn1inputstream.readObject();
        KeyGenerator keygenerator = KeyGenerator.getInstance(s);
        keygenerator.init(128);
        SecretKey secretkey = keygenerator.generateKey();
        Cipher cipher = Cipher.getInstance(s);
        cipher.init(1, secretkey, algorithmparameters);
        byte[] abyte1 = cipher.doFinal(in);
        DEROctetString deroctetstring = new DEROctetString(abyte1);
        KeyTransRecipientInfo keytransrecipientinfo = computeRecipientInfo(cert, secretkey.getEncoded());
        DERSet derset = new DERSet(new RecipientInfo(keytransrecipientinfo));
        AlgorithmIdentifier algorithmidentifier = new AlgorithmIdentifier(new DERObjectIdentifier(s), derobject);
        EncryptedContentInfo encryptedcontentinfo =
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        AlgorithmIdentifier algorithmidentifier = tbscertificatestructure.getSubjectPublicKeyInfo().getAlgorithmId();
        IssuerAndSerialNumber issuerandserialnumber =
            new IssuerAndSerialNumber(
                tbscertificatestructure.getIssuer(),
                tbscertificatestructure.getSerialNumber().getValue());
        Cipher cipher = Cipher.getInstance(algorithmidentifier.getObjectId().getId());
        cipher.init(1, x509certificate.getPublicKey());
        DEROctetString deroctetstring = new DEROctetString(cipher.doFinal(abyte0));
        RecipientIdentifier recipId = new RecipientIdentifier(issuerandserialnumber);
        return new KeyTransRecipientInfo( recipId, algorithmidentifier, deroctetstring);
    }
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  public SecretKey createKey(final String iAlgorithm, final byte[] iKey) throws OSecurityAccessException {
    return new SecretKeySpec(iKey, iAlgorithm);
  }

  public byte[] encrypt(final String iAlgorithm, final Key iKey, final byte[] iData) throws OSecurityAccessException {
    Cipher c;
    try {
      c = Cipher.getInstance(iAlgorithm);
      c.init(Cipher.ENCRYPT_MODE, iKey);
      return c.doFinal(iData);
    } catch (Exception e) {
      throw new OSecurityException("Error on encrypting data", e);
    }
  }
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      throw new OSecurityException("Error on encrypting data", e);
    }
  }

  public byte[] decrypt(final String iAlgorithm, final Key iKey, final byte[] iData) throws OSecurityAccessException {
    Cipher c;
    try {
      c = Cipher.getInstance(iAlgorithm);
      c.init(Cipher.DECRYPT_MODE, iKey);
      return c.doFinal(iData);
    } catch (Exception e) {
      throw new OSecurityException("Error on decrypting data", e);
    }
  }
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Related Classes of javax.crypto.Cipher

  • br.gov.serpro.ouvidoria.util.Utilitario
  • codec.pkcs7.EncryptedContentInfo
  • codec.pkcs7.RecipientInfo
  • codec.pkcs8.EncryptedPrivateKeyInfo
  • com.amazonaws.services.s3.AmazonS3EncryptionClient
  • com.amazonaws.services.s3.internal.crypto.EncryptionUtils
  • com.avaje.ebeaninternal.server.type.SimpleAesEncryptor
  • com.bitsofproof.supernode.common.ExtendedKey
  • com.bitsofproof.supernode.wallet.BIP39
  • com.bitsofproof.supernode.wallet.EncryptedHDRoot
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