What solution follows AWS best practices to allow the university read access to your company's S3 bucket?

To allow the university read access to your company's S3 bucket following AWS best practices, you can follow these steps:

1. Create an IAM Policy for the University: This policy will grant read access to the specific S3 bucket. In the AWS Management Console, navigate to IAM, then Policies, and create a new policy with the necessary permissions.

2. Create an IAM Role for the University: This role will be assumed by the university to access the S3 bucket. In the IAM section of the AWS Management Console, navigate to Roles and create a new role. Attach the policy created in step 1 to this role.

3. Share the IAM Role with the University: The university will need to assume this role to access the S3 bucket. You can share the role by providing the university with the Role ARN (Amazon Resource Name).

4. Enable Cross-Account Access: If the university has its own AWS account, you will need to enable cross-account access. This can be done in the Trust Relationships tab of the IAM role.

5. Test the Setup: Finally, you should test the setup to ensure the university can successfully read from the S3 bucket. This can be done by assuming the IAM role and attempting to access the S3 bucket.

Remember, it's important to follow the principle of least privilege when granting access. Only give the necessary permissions required for the university to read from the S3 bucket, and nothing more.