5.3 Data Locking/Unlocking

5.3.1 Lock Data

The lockData method of BayunCore class locks generic data of type byteArray.

  • Parameters
    • byte[] data - Byte data to be locked.
    • Callback success - Success block to be executed after data is successfully locked, returns locked data through key "lockedData".
    • Callback failure - Failure block to be executed if locking fails, returns BayunError.

Java
Kotlin
byte plainData[];

// Callbacks for locking data
Handler.Callback success = new Handler.Callback() {
    @Override
    public boolean handleMessage(Message message) {
        byte[] lockedText = message.getData().getByteArray("lockedData");
        return false;
    }
}

Handler.Callback failure = new Handler.Callback() {
    @Override
    public boolean handleMessage(Message message) {
        String error = message.getData().getString("BayunError");
        if (error.equalsIgnoreCase(BayunError.ERROR_INTERNET_CONNECTION)) {

        } else if (error.equalsIgnoreCase(BayunError.ERROR_ENCRYPTION_FAILED)) {

        } 
        return false;
    }
};

bayunCore.lockData(plainData, success, failure);

val plainData : ByteArray

// Callbacks for locking data
val success = Handler.Callback {
    val lockedText = it.data.getByteArray("lockedData")
    false
}

val failure = Handler.Callback {
    val error = it.data.getString("BayunError")
    if (error == BayunError.ERROR_INTERNET_CONNECTION) {

    } else if (error == BayunError.ERROR_ENCRYPTION_FAILED) {

    }
    false
}

bayunCore.lockData(plainData, success, failure)

5.3.2 Lock Data with encryption-policy

The lockData method with encryption-policy as an optional parameter locks data with the encryption key dictated by the policy.

  • Parameters
    • byte[] data - Byte data to be locked.
    • int encryptionPolicy - BayunEncryptionPolicy determines the key for locking.
    • int keyGenerationPolicy - BayunKeyGenerationPolicy determines the policy to generate the data encryption key.
    • String groupId - GroupId is required if encryptionPolicy is BayunEncryptionPolicyGroup.
    • Callback success - Success block to be executed after data is successfully locked, returns locked data through key "lockedData".
    • Callback failure - Failure block to be executed if locking fails, returns BayunError.

Java
Kotlin
byte plainData[];
int encryptionPolicy = BayunCore.ENCRYPTION_POLICY_COMPANY;int keyGenerationPolicy = BayunCore.KEY_GENERATION_POLICY_ENVELOPE;
String groupId = "groupId;

// Callbacks for locking data
Handler.Callback success = new Handler.Callback() {
    @Override
    public boolean handleMessage(Message message) {
        byte[] lockedText = message.getData().getByteArray("lockedData");
        return false;
    }
}

Handler.Callback failure = new Handler.Callback() {
    @Override
    public boolean handleMessage(Message message) {
        String error = message.getData().getString("BayunError");
        if (error.equalsIgnoreCase(BayunError.ERROR_INTERNET_CONNECTION)) {
        
        } else if (error.equalsIgnoreCase(BayunError.ERROR_ENCRYPTION_FAILED)) {
        
        } 
        return false;
    }
};

bayunCore.lockData(plainData, encryptionPolicy, keyGenerationPolicy, groupId, success, failure);


val plainData : ByteArray
val encryptionPolicy = BayunCore.ENCRYPTION_POLICY_COMPANY
val keyGenerationPolicy = BayunCore.KEY_GENERATION_POLICY_ENVELOPE
val groupId = "groupId"

// Callbacks for locking data
val success = Handler.Callback {
    val lockedText = it.data.getByteArray("lockedData")
    false
}

val failure = Handler.Callback {
    val error = it.data.getString("BayunError")
    if (error == BayunError.ERROR_INTERNET_CONNECTION) {

    } else if (error == BayunError.ERROR_ENCRYPTION_FAILED) {

    }
    false
}

bayunCore.lockData(plainData, encryptionPolicy, keyGenerationPolicy, groupId, success, failure)


Note : If encryption-policy is other than BayunEncryptionPolicyGroup then groupId should be nil.

5.3.3 Unlock Data

The unlockData method of BayunCore class unlocks generic data of type byteArray.

  • Parameters
    • byte[] data - Byte data to be unlocked.
    • Callback success - Success block to be executed after data is successfully unlocked, returns unlocked data through key "unlockedData".
    • Callback failure - Failure block to be executed if unlocking fails, returns BayunError.

Java
Kotlin
byte lockedData[];

// Callbacks for unlocking data
Handler.Callback success = new Handler.Callback() {
    @Override
    public boolean handleMessage(Message message) {
        byte[] unlockedText = message.getData().getByteArray("unlockedData");
        return false;
    }
}

Handler.Callback failure = new Handler.Callback() {
    @Override
    public boolean handleMessage(Message message) {
        String error = message.getData().getString("BayunError");
        if (error.equalsIgnoreCase(BayunError.ERROR_INTERNET_CONNECTION)) {

        } else if (error.equalsIgnoreCase(BayunError.ERROR_DECRYPTION_FAILED)) {

        } 
        return false;
    }
};

bayunCore.unlockData(lockedData, success, failure);


val lockedData : ByteArray

// Callbacks for unlocking data
val success = Handler.Callback {
    val unlockedText = it.data.getByteArray("unlockedData")
    false
}

val failure = Handler.Callback {
    val error = it.data.getString("BayunError")
    if (error == BayunError.ERROR_INTERNET_CONNECTION) {

    } else if (error == BayunError.ERROR_DECRYPTION_FAILED) {

    }
    false
}

bayunCore.unlockData(lockedData, success, failure)

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