I have a unique identifiers that I would like to keep secure and provide information about it through tokens. These tokens should be verifiable after using the same algorithm on other end system with presented ID and comparing these values.
I am thinking to use PBKDF2 as a one-way function to get such tokens from IDs. But to be verifiable I should use the same SALT everywhere.
Are there any security issues related to use the same SALT in PBKDF2 for all IDs?