HASH out value differnet on same file? about micro-ecc HOT 6 OPEN

I assume the ecc_verify() api just authenticates a given sha2 against the signature.. and does not need the rgn number b to do this. Sent from my T-Mobile 5G Device Get Outlook for Android<https://aka.ms/AAb9ysg>

We plan on using the first api on a PC to sign the binaries and the second api on the device to authenticate so we should be ok. Marc Karasek Principal Software Engineer M: 678.770.3788 ***@***.*** www.inspiresemi.com<http://www.cryptocoretech.com/> THIS MESSAGE IS INTENDED ONLY FOR THE USE OF THE INDIVIDUAL OR ENTITY TO WHICH IT IS ADDRESSED AND MAY CONTAIN INFORMATION THAT IS PRIVILEGED, CONFIDENTIAL AND/OR EXEMPT FROM DISCLOSURE UNDER APPLICABLE LAW. If the reader of this message is not the intended recipient or agent responsible for delivering the message to the intended recipient, then you are hereby notified that any dissemination or copying of this communication is strictly prohibited. If you have received this electronic transmission in error, please delete it from your system without copying it and notify the sender by reply e-mail so that our address record can be corrected. Thank you. From: uc-mani ***@***.***> Sent: Thursday, March 16, 2023 2:12 AM To: kmackay/micro-ecc ***@***.***> Cc: Marc Karasek ***@***.***>; Author ***@***.***> Subject: Re: [kmackay/micro-ecc] HASH out value differnet on same file? (Issue #206) I think as long as the signature created using uECC_sign() is verified by the uECC_verify() function, we are good. — Reply to this email directly, view it on GitHub<https://url.avanan.click/v2/___https:/github.com/kmackay/micro-ecc/issues/206%23issuecomment-1471379349___.YXAzOmluc3BpcmVzZW1pOmE6bzpiOWQxYzk1MGVkYTNmM2M2MzAzMDdkNDA5ZmExMjk5YTo2OmJkNGQ6NTFjNGNiM2EwYmJjNzFhZjAyODNjNTNlMWFiMWU0YWU2NTIxMjVkNzM2Y2M5MWViNjQ2ODI1YmY0NThhZjQ4MzpoOlQ>, or unsubscribe<https://url.avanan.click/v2/___https:/github.com/notifications/unsubscribe-auth/AR3S6YZMRUOPLWLI7QPOQRTW4KVK7ANCNFSM6AAAAAAV35RU6E___.YXAzOmluc3BpcmVzZW1pOmE6bzpiOWQxYzk1MGVkYTNmM2M2MzAzMDdkNDA5ZmExMjk5YTo2OmIxODM6NzkwZmExMjA4ODBiMTA2NzRlM2MzNTg2MTc0ODFjZWU1NzNjMDllMjRjOTA3NjBjNTFhZjg3ZTM3ODc4NDJiYjpoOlQ>. You are receiving this because you authored the thread.Message ID: ***@***.******@***.***>>

Great minds…. Am already doing that to verify the signature after packaging… Marc Karasek Principal Software Engineer M: 678.770.3788 ***@***.*** www.inspiresemi.com<http://www.cryptocoretech.com/> THIS MESSAGE IS INTENDED ONLY FOR THE USE OF THE INDIVIDUAL OR ENTITY TO WHICH IT IS ADDRESSED AND MAY CONTAIN INFORMATION THAT IS PRIVILEGED, CONFIDENTIAL AND/OR EXEMPT FROM DISCLOSURE UNDER APPLICABLE LAW. If the reader of this message is not the intended recipient or agent responsible for delivering the message to the intended recipient, then you are hereby notified that any dissemination or copying of this communication is strictly prohibited. If you have received this electronic transmission in error, please delete it from your system without copying it and notify the sender by reply e-mail so that our address record can be corrected. Thank you. From: uc-mani ***@***.***> Sent: Friday, March 17, 2023 2:14 AM To: kmackay/micro-ecc ***@***.***> Cc: Marc Karasek ***@***.***>; Author ***@***.***> Subject: Re: [kmackay/micro-ecc] HASH out value differnet on same file? (Issue #206) We plan on using the first api on a PC to sign the binaries and the second api on the device to authenticate so we should be ok. Marc Karasek Principal Software Engineer M: 678.770.3788 @.*** Hey marc, my suggestion is after uECC_sign api. Use the verify uECC api on PC as just an additional step for your signature verification. I am following the same approach for Firmware Update. — Reply to this email directly, view it on GitHub<https://url.avanan.click/v2/___https:/github.com/kmackay/micro-ecc/issues/206%23issuecomment-1473205958___.YXAzOmluc3BpcmVzZW1pOmE6bzo3NzkwOGVjMDQ1MGIyNWFjNjFhMmY5ZmM5ZjFiZmFhYjo2OjFhMWY6MTA2YjI1MDY4N2E5Njg1NTRjNTYzNTEwMDRhZWQ2N2FjNmRiNjMxOTY3YTFjYWViNDRjMjgxNTk0ZGE0MTA0NjpoOlQ>, or unsubscribe<https://url.avanan.click/v2/___https:/github.com/notifications/unsubscribe-auth/AR3S6Y3EHBRJAAYAK6AVA6LW4P6KDANCNFSM6AAAAAAV35RU6E___.YXAzOmluc3BpcmVzZW1pOmE6bzo3NzkwOGVjMDQ1MGIyNWFjNjFhMmY5ZmM5ZjFiZmFhYjo2OjJiOWM6M2RjOTg5NzNjNDVhNjIwODYxNGMxODQyMjdhNGJhN2YzYWFhMmJiZmNiN2VmMzFhOWVkZWUxMWMwMmM2NDRiMjpoOlQ>. You are receiving this because you authored the thread.Message ID: ***@***.******@***.***>>