void loop()

{

if (Serial1.available() > 0) // listen on Serial1

{

// check for start header

byte input = Serial1.read();

//Serial.print(input, HEX);

if (input == ') headerCount++;

if (headerCount == 3)

{

delay(100); // wait for entire message to come into Serial1 buffer (96 bytes at 9600 bau

d).

headerCount = 0; // reset

Serial.println("Message Received!");

Serial.println();

for (int bytes = 0 ; bytes < 32 ; bytes++) message[bytes] = Serial1.read();

for (int bytes = 0 ; bytes < 64 ; bytes++) signature[bytes] = Serial1.read();

printMessage();

printSignature();

// Let's verirfy!

if (atecc.verifySignature(message, signature, AlicesPublicKey)) Serial.println("Success! S

ignature Verified.");

else Serial.println("Verification failure.");

}

}

}

this function - he is using AlicesPublicKey!

Example 5: Random

This example shows how to use the Random Number Generator on the Sparkfun Cryptographic Co-processor. It

will print random numbers once a second on the serial terminal at 115200.

This example only requires 1 Artemis and 1 co-processor. If you just completed example 4, you can choose to use

Alice or Bob. This example helps set the stage for Example 6, so it's a good idea to check it out and see how the

ATECC508A does random numbers - particularly its ability to create 32 bytes of random data!