CC2340R5 AES Encryption hard fault

Hi Harinder,

Thanks for reaching out, I will be looking into this and get back to you tomorrow. In the meanwhile I just want to confirm this is the 6.40 SDK

Kind Regards,

Rogelio

Dear Sir,

Yes, this is 6.40 SDK

Regards,

Harinder Singh

Dear Sir, 

I have also tried the example for AES-CBC provided, but still no luck. 

(Example: ..ti/simplelink_cc23xx_sdk_6_40_00_21_eng/docs/drivers/doxygen/html/_a_e_s_c_b_c_8h.html#ti_drivers_AESCBC_Synopsis)

Adding AES Register Status, after faultISR for reference.

Can you please provide some reference manual for using AES feature on CC2340R5 or direct example project which I can refer for beter understanding.

Thanks & Regards,

Harinder Singh

Hi Harinder,

Looking through the code, I cant see the function AESECB_init() called. Can you call this function before calling other AESECB functions and see if you experience the same issue.

Kind Regards,

Rogelio

Dear Sir,

Greeting of the day!

I have added the AESECB_init(); before calling other functions, but still its the same problem. I have tried Both ECB & CBC examples.

Also modified the syscfg files. 

Note: For ECB I have added one more config as index 0 was already in use.

For: AES-ECB

For: AES-CBC

Please refer the updated code that I am working on.

/*ECB*/
void testEncECB()
{
AESECB_Handle handle;
CryptoKey cryptoKey;
int_fast16_t encryptionResult;
uint8_t plaintext[] = {0x6b, 0xc1, 0xbe, 0xe2, 0x2e, 0x40, 0x9f, 0x96,
0xe9, 0x3d, 0x7e, 0x11, 0x73, 0x93, 0x17, 0x2a,
0xae, 0x2d, 0x8a, 0x57, 0x1e, 0x03, 0xac, 0x9c,
0x9e, 0xb7, 0x6f, 0xac, 0x45, 0xaf, 0x8e, 0x51};
uint8_t ciphertext[sizeof(plaintext)];
uint8_t keyingMaterial[16] = {0x2b, 0x7e, 0x15, 0x16, 0x28, 0xae, 0xd2, 0xa6,
0xab, 0xf7, 0x15, 0x88, 0x09, 0xcf, 0x4f, 0x3c};

AESECB_init();
handle = AESECB_open(1, NULL);
if (handle == NULL) {
// handle error
}
CryptoKeyPlaintext_initKey(&cryptoKey, keyingMaterial, sizeof(keyingMaterial));
AESECB_Operation operation;
AESECB_Operation_init(&operation);
operation.key = &cryptoKey;
operation.input = plaintext;
operation.output = ciphertext;
// Input length must be a non-zero multiple of block-size (16 bytes)
// for one-step operations. The user or application should take care of
// necessary padding.
operation.inputLength = sizeof(plaintext);
encryptionResult = AESECB_oneStepEncrypt(handle, &operation);
if (encryptionResult != AESECB_STATUS_SUCCESS) {
// handle error
}

AESECB_close(handle);
}

/*CBC*/

void testEncCBC()
{
AESCBC_Handle handle;
CryptoKey cryptoKey;
int_fast16_t encryptionResult;
// For example purposes only. Generate IVs in a non-static way in practice.
// Test vector 0 from NIST CAPV set CBCMMT128
uint8_t iv[16] = {0x2f, 0xe2, 0xb3, 0x33, 0xce, 0xda, 0x8f, 0x98,
0xf4, 0xa9, 0x9b, 0x40, 0xd2, 0xcd, 0x34, 0xa8};
uint8_t plaintext[16] = {0x45, 0xcf, 0x12, 0x96, 0x4f, 0xc8, 0x24, 0xab,
0x76, 0x61, 0x6a, 0xe2, 0xf4, 0xbf, 0x08, 0x22};
uint8_t ciphertext[sizeof(plaintext)];
uint8_t keyingMaterial[16] = {0x1f, 0x8e, 0x49, 0x73, 0x95, 0x3f, 0x3f, 0xb0,
0xbd, 0x6b, 0x16, 0x66, 0x2e, 0x9a, 0x3c, 0x17};
// The ciphertext should be the following after the encryption operation:
// 0x0f, 0x61, 0xc4, 0xd4, 0x4c, 0x51, 0x47, 0xc0
// 0x3c, 0x19, 0x5a, 0xd7, 0xe2, 0xcc, 0x12, 0xb2
AESCBC_init();

handle = AESCBC_open(0, NULL);
if (handle == NULL) {
// handle error
}
CryptoKeyPlaintext_initKey(&cryptoKey, keyingMaterial, sizeof(keyingMaterial));
AESCBC_OneStepOperation operation;
AESCBC_OneStepOperation_init(&operation);
operation.key = &cryptoKey;
operation.input = plaintext;
operation.output = ciphertext;
operation.inputLength = sizeof(plaintext);
operation.iv = iv;
encryptionResult = AESCBC_oneStepEncrypt(handle, &operation);
if (encryptionResult != AESCBC_STATUS_SUCCESS) {
// handle error
}
AESCBC_close(handle);
}

Please let me know If I am doing something wrong with the configuration or their is some other issue.

Thanks & Regards,

Harinder Singh

Hi Harinder,

Unfortunately we dont have an example for the cc2340. Give me some time to reproduce and find a workaround. Ill update you next week. 

Kind Regards,

Rogelio

Dear Sir,

Any Update on this!

Kindly share one working reference example code for AES-CCM so that we can start with further testing or Let us know if it will take more time to debug the problem.

Please let me know if you need more information from my end.

Thanks & Regards,

Harinder Singh