Examples with NAEAESGCMCipher com.ingrian.security.nae.NAEAESGCMCipher used on opensource projects

Example 1 with NAEAESGCMCipher

use of com.ingrian.security.nae.NAEAESGCMCipher in project CipherTrust_Application_Protection by thalescpl-io.

the class FileEncryptionSampleUsingGCM method main.

public static void main(String[] args) {
    if (args.length != 10) {
        System.err.println("Usage: java FileEncryptionSampleUsingGCM user password keyname fileToEncrypt " + "encryptedFile decryptedFile authTagLength iv aad blockSize");
        System.exit(-1);
    }
    String username = args[0];
    String password = args[1];
    String keyName = args[2];
    String srcName = args[3];
    String dstName = args[4];
    String decrName = args[5];
    int authTagLength = Integer.parseInt(args[6]);
    String iv = args[7];
    String aad = args[8];
    int blockSize = Integer.parseInt(args[9]);
    /**
     * Note: For AES-GCM algorithm, same combination of nonce (IV) and key must not be reused
     * during encryption/decryption operations.
     */
    byte[] ivBytes = iv.getBytes();
    byte[] aadBytes = aad.getBytes();
    System.out.println("iv: " + IngrianProvider.byteArray2Hex(ivBytes));
    System.out.println("AAD: " + IngrianProvider.byteArray2Hex(aadBytes));
    Security.addProvider(new IngrianProvider());
    NAESession session = null;
    try {
        session = NAESession.getSession(username, password.toCharArray());
        NAEKey key = NAEKey.getSecretKey(keyName, session);
        GCMParameterSpec spec = new GCMParameterSpec(authTagLength, ivBytes, aadBytes);
        NAECipher cipher = NAECipher.getNAECipherInstance("AES/GCM/NoPadding", "IngrianProvider");
        cipher.init(Cipher.ENCRYPT_MODE, key, spec);
        NAEAESGCMCipher gcm = cipher.get_spi();
        gcm.update(srcName, dstName, blockSize, cipher);
        cipher.init(Cipher.DECRYPT_MODE, key, spec);
        gcm = cipher.get_spi();
        gcm.update(dstName, decrName, blockSize, cipher);
    } catch (Exception e) {
        e.printStackTrace();
    } finally {
        if (session != null) {
            session.closeSession();
        }
    }
}

Example 2 with NAEAESGCMCipher

use of com.ingrian.security.nae.NAEAESGCMCipher in project CipherTrust_Application_Protection by thalescpl-io.

the class CryptoTool method doEncryptGCM.

private static boolean doEncryptGCM(String keyName, String algName, byte[] iv, NAESession session, String authTagLength, String aad, String inFile, String outFile) throws Exception {
    Key key = NAEKey.getSecretKey(keyName, session);
    boolean isAADSpecified = false;
    if ((null != aad) && !EMPTYSTRING.equals(aad)) {
        isAADSpecified = true;
    }
    Integer authtaglength = Integer.parseInt(authTagLength);
    if (authtaglength == null) {
        System.err.println("Unknown AuthTagLength");
    }
    NAECipher cipher = NAECipher.getNAECipherInstance("AES/GCM/NoPadding", "IngrianProvider");
    if (isAADSpecified) {
        byte[] aadBytes = IngrianProvider.hex2ByteArray(aad);
        GCMParameterSpec gcmSpec = new GCMParameterSpec(authtaglength.intValue(), iv, aadBytes);
        try {
            cipher.init(Cipher.ENCRYPT_MODE, key, gcmSpec);
        } catch (InvalidAlgorithmParameterException e) {
            throw new NAEException("Encrypt: failed - " + e.getMessage());
        } catch (InvalidKeyException e) {
            throw e;
        }
    } else {
        try {
            GCMParameterSpec gcmSpec = new GCMParameterSpec(authtaglength.intValue(), iv);
            cipher.init(Cipher.ENCRYPT_MODE, key, gcmSpec);
        } catch (InvalidKeyException e) {
            throw e;
        } catch (InvalidAlgorithmParameterException e) {
            throw e;
        }
    }
    String result = null;
    inputscanner = new Scanner(is);
    result = inputscanner.nextLine();
    if (inFile != null && outFile != null) {
        NAEAESGCMCipher gcm = cipher.get_spi();
        gcm.update(inFile, outFile, 1024, cipher);
    } else {
        while (EMPTYSTRING.equals(result)) result = inputscanner.hasNext() ? inputscanner.nextLine() : null;
        os.writeBytes(IngrianProvider.byteArray2Hex(cipher.doFinal(result.getBytes())));
    }
    return true;
}

Example 3 with NAEAESGCMCipher

use of com.ingrian.security.nae.NAEAESGCMCipher in project CipherTrust_Application_Protection by thalescpl-io.

the class CryptoTool method doDecryptGCM.

private static boolean doDecryptGCM(String keyName, String algName, byte[] iv, NAESession session, String authTagLength, String aad, String inFile, String outFile) throws Exception {
    Key key = NAEKey.getSecretKey(keyName, session);
    boolean isAADSpecified = false;
    if ((null != aad) && !EMPTYSTRING.equals(aad)) {
        isAADSpecified = true;
    }
    Integer authtaglength = Integer.parseInt(authTagLength);
    if (authtaglength == null) {
        System.err.println("Unknown AuthTagLength");
    }
    NAECipher cipher = NAECipher.getNAECipherInstance("AES/GCM/NoPadding", "IngrianProvider");
    if (isAADSpecified) {
        byte[] aadBytes = IngrianProvider.hex2ByteArray(aad);
        GCMParameterSpec gcmSpec = new GCMParameterSpec(authtaglength.intValue(), iv, aadBytes);
        try {
            cipher.init(Cipher.DECRYPT_MODE, key, gcmSpec);
        } catch (InvalidAlgorithmParameterException e) {
            throw new NAEException("Decrypt: failed - " + e.getMessage());
        // e.printStackTrace();
        } catch (InvalidKeyException e) {
            throw e;
        }
    } else {
        try {
            GCMParameterSpec gcmSpec = new GCMParameterSpec(authtaglength.intValue(), iv);
            cipher.init(Cipher.DECRYPT_MODE, key, gcmSpec);
        } catch (InvalidKeyException e) {
            throw e;
        } catch (InvalidAlgorithmParameterException e) {
            throw e;
        }
    }
    inputscanner = new Scanner(is);
    String result = inputscanner.nextLine();
    if (inFile != null && outFile != null) {
        NAEAESGCMCipher gcm = cipher.get_spi();
        gcm.update(inFile, outFile, 1024, cipher);
    } else {
        while (EMPTYSTRING.equals(result.trim())) result = inputscanner.hasNext() ? inputscanner.nextLine() : null;
        os.write(cipher.doFinal(IngrianProvider.hex2ByteArray(result)));
    }
    return true;
}