Usage: encode_keychange [-fhPvV] -t (md5|sha1) [-O "<old_passphrase>"][-N "<new_passphrase>"][-E [0x]<engineID>] -E [0x]<engineID> EngineID used for kul generation. -f Force passphrases to be read from stdin. -h Help. -N "<new_passphrase>" Passphrase used to generate new Ku. -O "<old_passphrase>" Passphrase used to generate old Ku. -P Turn off prompt indicators. -t md5 | sha1 HMAC hash transform type. -v Verbose. -V Visible. Echo passphrases to terminal. Only -t is mandatory. The transform is used to convert P=>Ku, convert Ku=>Kul, and to hash the old Kul with the random bits. Passphrase will be taken from the first successful source as follows: a) Commandline options, b) The file "/root/.snmp/passphrase.ek", c) stdin -or- User input from the terminal. -f will require reading from the stdin/terminal, ignoring a) and b). -P will prevent prompts for passphrases to stdout from being printed. <engineID> is interpreted as a hex string when preceded by "0x", otherwise it is created to contain "text". If nothing is given, <engineID> is constructed from the first IP address for the local host.

Usage: encode_keychange [-fhPvV] -t (md5|sha1) [-O "<old_passphrase>"][-N "<new_passphrase>"][-E [0x]<engineID>] -E [0x]<engineID> EngineID used for kul generation. -f Force passphrases to be read from stdin. -h Help. -N "<new_passphrase>" Passphrase used to generate new Ku. -O "<old_passphrase>" Passphrase used to generate old Ku. -P Turn off prompt indicators. -t md5 | sha1 HMAC hash transform type. -v Verbose. -V Visible. Echo passphrases to terminal. Only -t is mandatory. The transform is used to convert P=>Ku, convert Ku=>Kul, and to hash the old Kul with the random bits. Passphrase will be taken from the first successful source as follows: a) Commandline options, b) The file "/root/.snmp/passphrase.ek", c) stdin -or- User input from the terminal. -f will require reading from the stdin/terminal, ignoring a) and b). -P will prevent prompts for passphrases to stdout from being printed. <engineID> is interpreted as a hex string when preceded by "0x", otherwise it is created to contain "text". If nothing is given, <engineID> is constructed from the first IP address for the local host.