Hi, I am re-opening this issue as I am going through the same. I really dont know who is the culprit but in my code I am using cJSON over both tcp and http platforms. After around 400-500 Rfid card swipe (this data is sent to Http and tcp servers), HTTP starts giving (0x4290) & (0x7f00) error, after...

We used http://aes.online-domain-tools.com/ to encrypt string "true" and then used encrypted output to decrypt on esp32 but it gave some other output and not "true". We used AES CBC encryption.

Hi Chegewara!!! Thank you for your response!!! I am stuck in decrypting a data. Could you please check the bug in my code below???: void decrypt_data() { //Received: {"data":"5e7d6e334a4665238524fd08e6cf6a94","hash":"269379345f048e9498eb86a969462b31fd6e1acbefb4cc121542ec40d9836962","iv":"f71620b1796...

Hi Chegewara,

How to do padding in aes encryption since it takes input in the multiple of 16 bytes.

Could you please illustrate with the help of an example.

Thanks
Ritu

Hi Team,

Still waiting for your response.

Thanks
Ritu

Hi WiFive, Thanks for your response. As suggested by you, I have freed const char *post_data = cJSON_Print(rfid_data_json); memory. Again getting the same error, but after sending 170 data on server i.e the count has increased. Also, applied the same changes to other places wherever the memory was n...

Hi Chegewara!!! Below is the http task which sends data to the server. void http_client(void *pvParam) { ESP_LOGI(HTTP_TAG,"http_client task started \n"); bzero(g_byNew_smartTagURLBuff, sizeof(g_byNew_smartTagURLBuff)); form_smartTagURL(g_byNew_smartTagURLBuff); bzero(g_byNew_normalTagURLBuff, sizeo...

Hi WiFive,

If I follow the steps given under heap tracing & also a short example under this section.

https://docs.espressif.com/projects/esp ... ap-tracing

Thanks
Ritu

After sometimes, it starts returning, mbedtls_ssl_setup returned -0x7f00.

What is this error for????

My system gets hanged after sometime.

Please help in this issue.

Thanks
Ritu.

Hi Chegewara, From the link you have sent, I could only make out that this error is due to memory leak in TLS library. ***It seems to be a memory leak into the mbedtls library. I am using xPortGetFreeHeapSize() to check the heap size and with each ssl communication the free heap size is lower. Where...