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Decrypt functionality has been fixed #2

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Decrypt functionality has been fixed #2

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6efb021
Added Decryption AES/ECB/PKCS5Padding
AndyCyberSec May 27, 2020
9c73256
Removed unused code which was confusing.
AndyCyberSec May 27, 2020
1a6a401
Rebuilt apk with working decrypt functionality
AndyCyberSec May 27, 2020
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Binary file modified apks/pivaa.apk
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23 changes: 22 additions & 1 deletion app/src/main/java/com/htbridge/pivaa/EncryptionActivity.java
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Original file line number Diff line number Diff line change
Expand Up @@ -97,7 +97,7 @@ public void onClick(View view) {
});


// Decryption AES/CBC/PKCS5Padding
// Encryption AES/CBC/PKCS5Padding (Weak IV)
Button mWeakIVButton = (Button) findViewById(R.id.button_weak_iv);
mWeakIVButton.setOnClickListener(new View.OnClickListener() {

Expand All @@ -115,6 +115,27 @@ public void onClick(View view) {
}

});


// Decryption AES/ECB/PKCS5Padding
Button mDecryptionButton = (Button) findViewById(R.id.button_decryption);
mDecryptionButton.setOnClickListener(new View.OnClickListener() {

@Override
public void onClick(View view) {
Log.i("htbridge", "Clicked decrypt button");

EditText mDecryptionPlaintextView = (EditText) findViewById(R.id.plaintext_decryption);
EditText mDecryptionCipherView = (EditText) findViewById(R.id.cipher_decryption);

String value = mDecryptionCipherView.getText().toString();
String decryptionResult = Encryption.decryptAES_ECB_PKCS5Padding(value);

mDecryptionPlaintextView.setText(decryptionResult, TextView.BufferType.EDITABLE);
}

});

}

}
2 changes: 0 additions & 2 deletions app/src/main/java/com/htbridge/pivaa/handlers/Encryption.java
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Original file line number Diff line number Diff line change
Expand Up @@ -79,8 +79,6 @@ public static String encryptAES_ECB_PKCS5Padding(String value) {
*/
public static String decryptAES_ECB_PKCS5Padding(String encryptedBase64) {
try {
byte[] IV = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
IvParameterSpec iv = new IvParameterSpec(IV);

byte[] key = {
1, 2, 3, 4, 5, 6, 7, 8, 8, 7, 6, 5, 4, 3, 2, 1
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