Other Parts Discussed in Thread: SHA-256
Tool/software:
Dear TI Support Team,
I am currently using one of TI’s battery fuel gauge ICs in our portable BT speaker product. However, I noticed that the current model we are using only supports SHA-1 for authentication and does not support SHA-256. Our application requires secure authentication of the battery pack.
Could you please advise on the following points:
- Is SHA-1 considered secure enough for battery pack authentication in today’s environment?
- What is the current estimated difficulty and cost of breaking SHA-1 in practical terms?
- Since there are very few fuel gauge ICs supporting SHA-256 for 2 cells, would it be acceptable to continue using the current SHA-1 supported device for now?
- Do you recommend switching immediately to a device supporting SHA-256 to ensure long-term security?
- Are there any other potential technical or security issues we should be aware of when continuing to use SHA-1 on your chips?
Look forward to your expert advice.
