ATECC608A verification issue

Log in or register to post comments
Go To Last Post
4 posts / 0 new
Author
Message
aasimizia
aasimizia's picture
Level: New Member
Joined: Mon. Jan 22, 2018
Posts: 11 View posts
#1
Posted by aasimizia: Tue. Jan 19, 2021 - 03:42 PM
  • 1
  • 2
  • 3
  • 4
  • 5
Total votes: 0

Hello everyone, I am working on ATECC608A for creating signature and verification of ECDSA signature, but so far I have generated private keys and public keys from IC. I have signed external message using private key stored in the SLOT 0.
Which is configured as 81 20 for slot config and key config 33 00.
So far I am able to generate signature using external message , but I use verify command it says 0F execution error. Please help me solve this issue.

Tags:

Security, General Security Discussions
Last Edited: Tue. Jan 19, 2021 - 03:43 PM
Top
PhillyNJ
PhillyNJ's picture
Level: Resident
Joined: Sat. Oct 11, 2014
Posts: 731 View posts
Posted by PhillyNJ: Wed. Jan 20, 2021 - 12:02 AM
  • 1
  • 2
  • 3
  • 4
  • 5
Total votes: 0

Have you locked the device? I believe the keys needs to be locked in order verify if I am not mistaken. 

 

"When all else fails, read the directions"

Top
aasimizia
aasimizia's picture
Level: New Member
Joined: Mon. Jan 22, 2018
Posts: 11 View posts
Posted by aasimizia: Wed. Jan 20, 2021 - 03:41 AM (Reply to #2)
  • 1
  • 2
  • 3
  • 4
  • 5
Total votes: 0

Yeah ,I have done the locking of zones. As I have said key generation and signature are working fine. Only verification command is causing problem here.
If I give verify command it should reply failure or success but it replies execution error. And if I have not done previous steps it should reply parse error.

Top
aasimizia
aasimizia's picture
Level: New Member
Joined: Mon. Jan 22, 2018
Posts: 11 View posts
Posted by aasimizia: Wed. Jan 20, 2021 - 12:25 PM (Reply to #2)
  • 1
  • 2
  • 3
  • 4
  • 5
Total votes: 0

I generated Public and private keys and signed some random data with private keys, After generating signature i passed it to verify command with Public keys generated from software I am able to verify the signature.

 

When i generate keys from IC and use those keys to verify the signature it says Execution error,  but when i use public keys generated by crypto manager software It says verification failed(It has be fail because keys are not same as IC's. I have concluded that there is problem in public keys generated by IC, I dont know what is wrong in it?

Top