ipassgen

Entropy-requirement based password generator.

Usage

Char-based mode:

$ ipassgen -aA0 -E 80.0
BIrfarGdBN666q

Word-based mode (Diceware):

$ ipassgen -m diceware -E 80.0
jh dang front red von wack y's

Options

Mode: -m <MODE>

ipassgen supports character-based password and word-based passphrase.

Character set specifier: -a, -A, -0, -!, (Chars mode only)

Specify character set.

Specify symbols: -s <SYMBOLS>

If you wanto to specify symbols to use, use -s option.

$ ipassgen -aA0 -s '%&()*+,-./:;<=>?@[]^_|~'
r(MY3lv5X.7Q

Entropy: -E <ENTROPY> / --entropy <ENTROPY>

Specify target entropy in bits.

Length: -L <LEN> / --length <LEN>

Specify output length.

In char-based mode, output LEN characters.
In word-based mode, output LEN words.

If you specify short length that is not enough to generate default entropy target, you must spceify smaller entropy target (-E).

Maximum output length: -M <BYTES> / --max-length <BYTES>

Specify maximum output length in bytes.

Default value is 72 bytes, from bcrypt limitation.

Separator: -S <SEP> / --sep <SEP>

Specify word separator. Default is a space.

License

ipassgen is distributed under the terms of both the MIT license and the Apache License (Version 2.0).

See LICENSE-APACHE and LICENSE-MIT.