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<?php /** * Usage: Run this from the command line to generate a secure passphrase in the format * of stereotypical bottom keymashing. * * php bottom-responder.php | xclip * * Why? Because furries ruin everything, including bottom jokes. */ function random_str(int $length, string $charset): string { $c = strlen($charset) - 1; if ($c < 1) { throw new RangeException("Dumb"); } $pieces = []; for ($i = 0; $i < $length; ++$i) { $x = random_int(0, $c); array_push($pieces, $charset[$x]); } return implode($pieces); } /* 8 home row characters + 8 to 12 random letters + 4 home row characters Entropy estimates Lower end: 26.575 + 38.864 + 13.288 -> 78 bits Upper end: 26.575 + 58.296 + 13.288 -> 98 bits */ $x = random_int(8, 12); echo random_str(8, 'asdfghjkl;') . random_str($x, 'qwertyuiopasdfghjkl;zxcvbnm,.') . random_str(8, 'asdfghjkl;');
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/crGhX
function name:  (null)
number of ops:  21
compiled vars:  !0 = $x
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   32     0  E >   INIT_FCALL                                               'random_int'
          1        SEND_VAL                                                 8
          2        SEND_VAL                                                 12
          3        DO_ICALL                                         $1      
          4        ASSIGN                                                   !0, $1
   33     5        INIT_FCALL                                               'random_str'
          6        SEND_VAL                                                 8
          7        SEND_VAL                                                 'asdfghjkl%3B'
          8        DO_FCALL                                      0  $3      
          9        INIT_FCALL                                               'random_str'
         10        SEND_VAR                                                 !0
         11        SEND_VAL                                                 'qwertyuiopasdfghjkl%3Bzxcvbnm%2C.'
         12        DO_FCALL                                      0  $4      
         13        CONCAT                                           ~5      $3, $4
         14        INIT_FCALL                                               'random_str'
         15        SEND_VAL                                                 8
         16        SEND_VAL                                                 'asdfghjkl%3B'
         17        DO_FCALL                                      0  $6      
         18        CONCAT                                           ~7      ~5, $6
         19        ECHO                                                     ~7
         20      > RETURN                                                   1

Function random_str:
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 43) Position 1 = 7, Position 2 = 11
Branch analysis from position: 7
1 jumps found. (Code = 108) Position 1 = -2
Branch analysis from position: 11
1 jumps found. (Code = 42) Position 1 = 25
Branch analysis from position: 25
2 jumps found. (Code = 44) Position 1 = 27, Position 2 = 14
Branch analysis from position: 27
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 14
2 jumps found. (Code = 44) Position 1 = 27, Position 2 = 14
Branch analysis from position: 27
Branch analysis from position: 14
filename:       /in/crGhX
function name:  random_str
number of ops:  34
compiled vars:  !0 = $length, !1 = $charset, !2 = $c, !3 = $pieces, !4 = $i, !5 = $x
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   10     0  E >   RECV                                             !0      
          1        RECV                                             !1      
   11     2        STRLEN                                           ~6      !1
          3        SUB                                              ~7      ~6, 1
          4        ASSIGN                                                   !2, ~7
   12     5        IS_SMALLER                                               !2, 1
          6      > JMPZ                                                     ~9, ->11
   13     7    >   NEW                                              $10     'RangeException'
          8        SEND_VAL_EX                                              'Dumb'
          9        DO_FCALL                                      0          
         10      > THROW                                         0          $10
   15    11    >   ASSIGN                                                   !3, <array>
   16    12        ASSIGN                                                   !4, 0
         13      > JMP                                                      ->25
   17    14    >   INIT_FCALL                                               'random_int'
         15        SEND_VAL                                                 0
         16        SEND_VAR                                                 !2
         17        DO_ICALL                                         $14     
         18        ASSIGN                                                   !5, $14
   18    19        INIT_FCALL                                               'array_push'
         20        SEND_REF                                                 !3
         21        FETCH_DIM_R                                      ~16     !1, !5
         22        SEND_VAL                                                 ~16
         23        DO_ICALL                                                 
   16    24        PRE_INC                                                  !4
         25    >   IS_SMALLER                                               !4, !0
         26      > JMPNZ                                                    ~19, ->14
   20    27    >   INIT_FCALL                                               'implode'
         28        SEND_VAR                                                 !3
         29        DO_ICALL                                         $20     
         30        VERIFY_RETURN_TYPE                                       $20
         31      > RETURN                                                   $20
   21    32*       VERIFY_RETURN_TYPE                                       
         33*     > RETURN                                                   null

End of function random_str

Generated using Vulcan Logic Dumper, using php 8.0.0


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138.95 ms | 1009 KiB | 19 Q