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suculent / thinx-aes-lib

AES wrapper for ESP8266/ESP32/Arduino/nRF5x
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Help needed: print key and IV #51

Closed esmeevandenberg closed 2 years ago

esmeevandenberg commented 3 years ago

Hi,

I am using the simple code on my Arduino. Since I want to communicate between my Arduino and Raspberry with AES Encryption, I need to set the IV and Key manually. Can someone help me how I can achieve this?

suculent commented 3 years ago

Well, usually the IV is sent with encrypted data in OpenSSL and key is built-in the code or fetched on init (key escrow mechanism).

M.

    1. 2021 v 16:47, esmeevandenberg @.***>:

 Hi,

I am using the simple code on my Arduino. Since I want to communicate between my Arduino and Raspberry with AES Encryption, I need to set the IV and Key manually. Can someone help me how I can achieve this?

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esmeevandenberg commented 3 years ago

Sorry, I think I did not formulate my question properly. I was especially wondering how to change the Simple code, in order to set the IV manually? At the moment, the code itself generates the IV right? But I want to sent the IV from my Raspberry Pi to my Arduino and use this for encryption. But I can not figure out how to do this

suculent commented 3 years ago

Just drop the:

aesLib.gen_iv(aes_iv);

line and use the one stored in aes_iv... other examples show how to reuse static initialization vector after it's been overwritten by decoding function like:

memcpy(enc_iv_to, aes_iv, sizeof(aes_iv));

On 12. 5. 2021, at 20:20:25, esmeevandenberg @.***> wrote:

Sorry, I think I did not formulate my question properly. I was especially wondering how to change the Simple code, in order to set the IV manually? At the moment, the code itself generates the IV right? But I want to sent the IV from my Raspberry Pi to my Arduino and use this for encryption. But I can not figure out how to do this

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