search

sparkfun / SparkFun_ATECCX08a_Arduino_Library

An Arduino library to use with the Microchip ATECCX08a Cryptographic Co-processors.
https://www.sparkfun.com
Other
36 stars 18 forks source link

How to export public key #15

Open cibolo opened 2 years ago

cibolo commented 2 years ago

I am looking for a way to make a public key generated from the library usable outside the library. In other words how do I convert the public key produced by the ATECC508 into a public certificate?

I think this functionality would be a useful example.

uint8_t AlicesPublicKey[64] = { 0xB4, 0x07, 0x88, 0x28, 0x8C, 0xFA, 0x71, 0xBA, 0x08, 0xE3, 0x38, 0xE0, 0x4A, 0x17, 0x68, 0xCC, 0x3E, 0xCD, 0x48, 0xA8, 0x11, 0x52, 0xDD, 0x37, 0xA1, 0xC2, 0x55, 0x75, 0x81, 0xBE, 0x4E, 0x7E, 0x78, 0x98, 0x95, 0xF6, 0x6D, 0xE7, 0x1C, 0x9A, 0x36, 0xE6, 0xB0, 0x14, 0x5D, 0x50, 0x67, 0x91, 0x7C, 0x41, 0xB8, 0x99, 0x20, 0x75, 0x3A, 0x7D, 0xA1, 0xFB, 0xF5, 0x5E, 0x8A, 0x65, 0xF5, 0x8A };

is a 64 byte hex array and not sure of the best way to convert it to a public certificate that could be used in openssl, etc.

Any ideas on where to get started?

Thanks!