I thought that if the user changes the passphrase[1] it could be done... But since the keys (private/public) remain the same, doesn't make any sense in this sce

I thought that if the user changes the passphrase[1] it could be done... But since the keys (private/public) remain the same, doesn't make any sense in this scenario. As I understand this (didn't try it) you could have 2 computers, same private/public keys different passphrase on each computer. [1] http://security.stackexchange.com/questions/37510/when-changing-a-pgp-passphrase-does-it-only-affect-the-private-key http://security.stackexchange.com/questions/37510/when-chang...