> ## Documentation Index
> Fetch the complete documentation index at: https://notevil.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# CAPLfunctionSecurityLocalEncryptAES128CBC

# SecurityLocalEncryptAES128CBC

[Valid for](../../../Shared/FeatureAvailability.md): CANoe DE • CANoe4SW DE

**Note**\
Replaces `LocalSecurityEncryptAES128CBC`.

## Function Syntax

```c theme={null}
long SecurityLocalEncryptAES128CBC(byte key[], dword keyLength, byte data[], dword dataLength, byte initVector[], dword initVectorLength, byte cipheredData[], dword cipheredDataLength)
```

## Description

Encrypts data with a given key and initialization vector using AES128 (CBC), Padding Mode PKCS5.

## Parameters

* **byte key\[]**: The key to be used for AES (128 bit).
* **dword keyLength**: 16 (bytes).
* **byte data\[]**: The data to encrypt.
* **dword dataLength**: The length of the data to encrypt.
* **byte initVector\[]**: The init vector to be used.
* **dword initVectorLength**: 16 (bytes).
* **byte cipheredData \[] \[Out]**: The buffer in which the ciphered data is stored.
* **dword cipheredData Length \[In/Out]**: The length of the buffer. Typically this buffer has to be 16 bytes longer than the length of the data to encrypt.

## Return Values

* **1**: Success\
  A Value of 1 means that the action was successful.
* **\<= 0**: Error\
  A value less than or equal to 0 means error.

## Example

**Example**

```c theme={null}
byte keyData[16] = {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
dword keyLength = elcount(keyData);
byte data[16] = {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
dword dataLength = elcount(data);
byte initVector[16] = {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
dword initVectorLength = elcount(initVector);
byte cipheredOutput[32];
dword cipheredOutputLength = elcount(cipheredOutput);

long result;

result = SecurityLocalEncryptAES128CBC(keyData, keyLength, data, dataLength, initVector, initVectorLength, cipheredOutput, cipheredOutputLength);
```