(computing) key / (music) key

中々: very, quite, considerably, rather, by no means (with negative verb)

very, quite, considerably, rather / by no means (with negative verb)

the daytime, during the day / a half day, half of a day

inside

bird watching

(cryptography) secret key

(cryptography) public key

(cryptography) key exchange - an exchange of peers' keys at initialization phase of connection.

everything