REKEYING

verb

1. To enter information into a device, such as a keyboard or keypad, after it has been done at least once before.
2. To modify (a lock or its cylinder) to change which keys will open it.
3. To change the key or tenor of; to reframe.

noun

1. The process of entering information into a device again, by means of a keyboard or similar.
2. The process of changing the key or tenor of something; a reframing.