Commands tagged passphrase (7)

  • Create strong, but easy to remember password

    Why remember? Generate! Up to 48 chars, works on any unix-like system (NB: BSD use md5 instead of md5sum) Show Sample Output


    23
    read -s pass; echo $pass | md5sum | base64 | cut -c -16
    bugmenot · 2011-11-24 20:23:47 6
  • Bitcoin Brainwallet Private Key Calculator

    A bitcoin "brainwallet" is a secret passphrase you carry in the "wallet" of your brain. The Bitcoin Brainwallet Private Key Calculator calculates the standard base58 encoded bitcoin private key from your "brainwallet" passphrase. The private key is the most important bitcoin number. All other numbers can be derived from it. This command uses 3 other functions - all 3 are defined on my user page: 1) brainwallet_exponent() - search for Bitcoin Brainwallet Exponent Calculator 2) brainwallet_checksum() - search for Bitcoin Brainwallet Exponent Calculator 3) b58encode() - search for Bitcoin Brainwallet Base58 Encoder Do make sure you use really strong, unpredictable passphrases (30+ characters)! http:brainwallet.org can be used to check the accuracy of this calculator. Show Sample Output


    7
    (read -r passphrase; b58encode 80$( brainwallet_exponent "$passphrase" )$( brainwallet_checksum "$passphrase" ))
    nixnax · 2014-02-18 02:50:09 1
  • Generate an XKCD #936 style 4 word passphrase (fast)

    Some snippets posted are slow on big dictionaries, this one is fast. Show Sample Output


    1
    echo $(shuf -n4 /usr/share/dict/words)
    bohwaz · 2011-08-30 03:10:06 4
  • Generate an XKCD #936 style 4 word passphrase (fast)

    This restricts things 3 ways: 1. No capitalized words, hence no proper names. 2. No apostrophes. 3. Restricts size to range (3,7) Show Sample Output


    1
    echo $(grep "^[^'A-Z]\{3,7\}$" /usr/share/dict/words|shuf -n4)
    cbbrowne · 2011-09-07 22:03:45 0
  • Bash scripts encryption and passphrase-protection

    This function will encrypt a bash script and will only execute it after providing the passphrase. Requires mcrypt to be installed on the system. Show Sample Output


    1
    scrypt(){ [ -n "$1" ]&&{ echo '. <(echo "$(tail -n+2 $0|base64 -d|mcrypt -dq)"); exit;'>$1.scrypt;cat $1|mcrypt|base64 >>$1.scrypt;chmod +x $1.scrypt;};}
    rodolfoap · 2017-06-14 16:27:20 2
  • Bitcoin Brainwallet Private Key Calculator


    0
    $ bitgen hex 12312381273918273128937128912c3b1293cb712938cb12983cb192cb1289b3 info
    Label10 · 2019-03-27 21:25:29 0
  • Bitcoin Brainwallet Private Key Calculator


    0
    (read -r passphrase; b58encode 80$( brainwallet_exponent "$passphrase" )$( brainwallet_checksum "$passphrase" ))
    Jacki188 · 2019-09-15 21:31:52 0

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print all network interfaces' names and IPv4 addresses
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Encrypt and password-protect execution of any bash script
(Please see sample output for usage) script.bash is your script, which will be crypted to script.secure script.bash --> script.secure You can execute script.secure only if you know the password. If you die, your script dies with you. If you modify the startup line, be careful with the offset calculation of the crypted block (the XX string). Not difficult to make script editable (an offset-dd piped to a gpg -d piped to a vim - piped to a gpg -c directed to script.new ), but not enough space to do it on a one liner.

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