> ## 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.

# CAPLfunctionSecurityLocalGenerateSHA256

# SecurityLocalGenerateSHA256

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

**Note**\
Replaces `LocalSecurityGenerateSHA256`.

## Function Syntax

```c theme={null}
long SecurityLocalGenerateSHA256(byte data[], dword dataLength, byte sha256[], dword sha256Length)
```

## Description

Generates a SHA256 hash for the given data and using the given key.

## Parameters

* **byte data\[]**\
  The data to encrypt.

* **dword dataLength**\
  The length of the data to encrypt.

* **byte sha256\[] \[Out]**\
  The generated SHA256 hash.

* **dword sha256Length \[In/Out]**\
  The length of the generated SHA256 hash. (32 bytes)

## 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

```c theme={null}
byte data[3] = { 0x61, 0x62, 0x63 };
byte refOutput[32] ={
0xba, 0x78, 0x16, 0xbf,
0x8f, 0x01, 0xcf, 0xea,
0x41, 0x41, 0x40, 0xde,
0x5d, 0xae, 0x22, 0x23,
0xb0, 0x03, 0x61, 0xa3,
0x96, 0x17, 0x7a, 0x9c,
0xb4, 0x10, 0xff, 0x61,
0xf2, 0x00, 0x15, 0xad
};

dword refOutputLength = 32;
byte output[32];
dword outputLength = 32;
dword result = 255;
dword counter = 0;
result = SecurityLocalGenerateSHA256(data, elCount(data), output, outputLength);
```