Examples of JWEAlgorithm

com.nimbusds.jose.JWEAlgorithm
JSON Web Encryption (JWE) algorithm name, represents the {@code alg} header parameter in JWE objects. This class is immutable.
Includes constants for the following standard JWE algorithm names:
- {@link #RSA1_5}
- {@link #RSA_OAEP RSA-OAEP}
- {@link #RSA_OAEP_256 RSA-OAEP-256}
- {@link #A128KW}
- {@link #A192KW}
- {@link #A256KW}
- {@link #DIR dir}
- {@link #ECDH_ES ECDH-ES}
- {@link #ECDH_ES_A128KW ESDH-ES+A128KW}
- {@link #ECDH_ES_A128KW ESDH-ES+A192KW}
- {@link #ECDH_ES_A256KW ESDH-ES+A256KW}
- {@link #PBES2_HS256_A128KW PBES2-HS256+A128KW}
- {@link #PBES2_HS256_A192KW PBES2-HS256+A192KW}
- {@link #PBES2_HS256_A256KW PBES2-HS256+A256KW}
Additional JWE algorithm names can be defined using the constructors. @author Vladimir Dzhuvinov @version $version$ (2013-05-06)

Examples of com.nimbusds.jose.JWEAlgorithm

      throw new JOSEException("Unsupported critical header parameter");
    }
    


    // Derive the content encryption key
    JWEAlgorithm alg = header.getAlgorithm();


    SecretKey cek;


    if (alg.equals(JWEAlgorithm.RSA1_5)) {


      int keyLength = header.getEncryptionMethod().cekBitLength();


      SecureRandom randomGen = getSecureRandom();
      SecretKey randomCEK = AES.generateKey(keyLength, randomGen);


      try {
        cek = RSA1_5.decryptCEK(privateKey, encryptedKey.decode(), keyLength, keyEncryptionProvider);
      
      } catch (Exception e) {


        // Protect against MMA attack by generating random CEK on failure, 
        // see http://www.ietf.org/mail-archive/web/jose/current/msg01832.html
        cek = randomCEK;
      }
    
    } else if (alg.equals(JWEAlgorithm.RSA_OAEP)) {


      cek = RSA_OAEP.decryptCEK(privateKey, encryptedKey.decode(), keyEncryptionProvider);


    } else if (alg.equals(JWEAlgorithm.RSA_OAEP_256)) {
      
      cek = RSA_OAEP_256.decryptCEK(privateKey, encryptedKey.decode(), keyEncryptionProvider);
      
    } else {

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Examples of com.nimbusds.jose.JWEAlgorithm


  @Override
  public JWECryptoParts encrypt(final ReadOnlyJWEHeader header, final byte[] bytes)
    throws JOSEException {


    final JWEAlgorithm alg = header.getAlgorithm();
    final EncryptionMethod enc = header.getEncryptionMethod();


    // Generate and encrypt the CEK according to the enc method
    final SecureRandom randomGen = getSecureRandom();
    final SecretKey cek = AES.generateKey(enc.cekBitLength(), randomGen);


    Base64URL encryptedKey; // The second JWE part


    if (alg.equals(JWEAlgorithm.RSA1_5)) {


      encryptedKey = Base64URL.encode(RSA1_5.encryptCEK(publicKey, cek, keyEncryptionProvider));


    } else if (alg.equals(JWEAlgorithm.RSA_OAEP)) {


      encryptedKey = Base64URL.encode(RSA_OAEP.encryptCEK(publicKey, cek, keyEncryptionProvider));


    } else if (alg.equals(JWEAlgorithm.RSA_OAEP_256)) {
      
      encryptedKey = Base64URL.encode(RSA_OAEP_256.encryptCEK(publicKey, cek, keyEncryptionProvider));
      
    } else {

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Examples of com.nimbusds.jose.JWEAlgorithm


  @Override
  public JWECryptoParts encrypt(final ReadOnlyJWEHeader readOnlyJWEHeader, final byte[] bytes)
    throws JOSEException {


    JWEAlgorithm alg = readOnlyJWEHeader.getAlgorithm();


    if (! alg.equals(JWEAlgorithm.DIR)) {


      throw new JOSEException("Unsupported JWE algorithm, must be \"dir\"");
    }


    // Check key length matches matches encryption method

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