Synopsis

Secure Vault is an android application that stores users passwords and information securely.

Goals

Provide a secure storage platform for passwords and information.

Motivation

As technology grows so does user demand for privacy. Using multiple and different passwords helps us to keep our data safe, However, the difficulty of remembering the passwords often keeps them unsecured on the device or alternatively on paper. This is where we came in the picture with an android application that stores user's passwords and information securely on the device.

Code Example

public String encryptWithKey(String Key, String stringToEncrypt) throws Exception {
    SecretKeySpec key = generateKey(Key);
    Cipher c = Cipher.getInstance(getAES());
    c.init(Cipher.ENCRYPT_MODE, key);
    byte[] encVal = c.doFinal(stringToEncrypt.getBytes());
    String encryptedValue = Base64.encodeToString(encVal, Base64.DEFAULT);
    return encryptedValue;
}

public String encrypt(String stringToEncrypt) throws Exception {
    SecretKeySpec key = generateKey(stringToEncrypt);
    Cipher c = Cipher.getInstance(getAES());
    c.init(Cipher.ENCRYPT_MODE, key);
    byte[] encVal = c.doFinal(stringToEncrypt.getBytes());
    String encryptedValue = Base64.encodeToString(encVal, Base64.DEFAULT);
    return encryptedValue;
}

public String decrypt(String encryptedString, String Key) throws Exception {
    SecretKeySpec key = generateKey(Key);
    Cipher c = Cipher.getInstance(getAES());
    c.init(Cipher.DECRYPT_MODE, key);
    byte[] decodeValue = Base64.decode(encryptedString, Base64.DEFAULT);
    byte[] decValue = c.doFinal(decodeValue);
    String decryptedValue = new String(decValue);
    return decryptedValue;
}

public SecretKeySpec generateKey(String Key) throws Exception {
    final MessageDigest digest = MessageDigest.getInstance("SHA-256");
    byte[] bytes = Key.getBytes("UTF-8");
    digest.update(bytes, 0, bytes.length);
    byte[] key = digest.digest();
    SecretKeySpec secretKeySpec = new SecretKeySpec(key, "AES");
    return secretKeySpec;
}

Usage

https://youtu.be/aiUE0lkhenY

Tests

Contributors

Yotam Shoval
Evgeni Iseev
Ori Even-Chen
Idan Bardugo

For information on the app contact me on: idanbar93@gmail.com

idanb93/secure-vault