10-16-2019
The password of users are stored as a cryptographic hash. Hence you cannot get the length of a users's password from the stored hash.
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LEARN ABOUT DEBIAN
radcrypt
RADCRYPT(8) System Manager's Manual RADCRYPT(8)
NAME
radcrypt - generate password hash for use with radius, or validates a password hash
SYNOPSIS
radcrypt [-d|--des] [-m|--md5] [-c|--check] plaintext_password [hashed_password]
DESCRIPTION
radcrypt generates a hashed digest of a plaintext password, or can validate if a password hash matches a plaintext password. DES and MD5
hashes are currently supported. When generating a password hash a random salt is generated and applied.
A hashed password can be validated by specifying -c or --check and passing hashed_password after plaintext_password on the command line.
In this case hashed_password will be checked to see if it matches plaintext_password. If so "Password OK" will be printed and the exit sta-
tus will be 1, otherwise "Password BAD" will be printed and exit status will be 0 (Note this is the opposite of a normal successful shell
status).
OPTIONS
-d --des
Use a DES (Data Encryption Standard) hash (default). Ignored if performing a password check.
-m --md5
Use a MD5 (Message Digest 5) hash. Ignored if performing a password check.
-c --check
Perform a validation check on a password hash to verify if it matches the plantext password.
EXAMPLES
$ radcrypt foobar
HaX0xn7Qy650Q
$ radcrypt -c foobar HaX0xn7Qy650Q
Password OK
SEE ALSO
radiusd(8), crypt(3)
AUTHORS
Miquel van Smoorenburg <miquels@cistron-office.nl>
RADCRYPT(8)