1.5.4.25 AL_PerformECB Function

C

AL_RESULT AL_PerformECB (
        uint8_t *dataIn,
        uint8_t dataLen,
        uint8_t *dataOut,
        uint8_t *key,
        uint8_t keyLen
);

Summary

The AL_PerformECB primitive provides AES-ECB Encryption capabilities.

Description

This function is provided for the upper layers to take advantage of encryption capabilities of AL.

It performs an AES-ECB Encryption to a data buffer using provided input parameters and returns the encrypted data in the provided output parameter.

Parameters

Param Description

dataIn

Pointer to data to be encrypted

dataLen

Length of data buffer to be encrypted (in bytes)

dataOut

Pointer to buffer where encrypted data will be written
key Pointer to key to be used for encryption
keyLen Length of key to be used for encryption (in bytes)

Returns

AL_SUCCESS if encryption succeeds. AL_ERROR otherwise.

Example

    bool result;
    uint8 rawData[64];
    uint8 encryptedData[64];
    uint8 aesKey[16];

    memcpy(rawData, appData, sizeof(rawData));
    memcpy(aesKey, appKey, sizeof(aesKey));

    result = AL_PerformECB(rawData, 64, encryptedData, aesKey, 16);
    if (result == AL_SUCCESS)
    {
        sendData(encryptedData);
    }

Remarks

None.