Is there a difference between re-seeding and re-keying? I think of this analogy: you re-key/re-seed periodically not because the originally lock gets weaker, b

Is there a difference between re-seeding and re-keying? I think of this analogy: you re-key/re-seed periodically not because the originally lock gets weaker, but in case someone stole your key without you knowing. Accurate?