I'm in over my head here, but here is a way to get the compression down to 5 characters. 
#results
0000000100100011010001010110011110001001101010111100110111101111  ->  
+  iL1@;

[download]
This almost works. I can only get the last half of the bin string back, but maybe the gurus can see the packing error. Maybe needs 64 bit numbers or Math::BigINT? 
#!/usr/bin/perl
use strict;
use Math::Base85;


my $str = "00000001001000110100010101100111100010011010101111001101111
+01111";

#binary to decimal conversion 
my $num =  unpack("N", pack("B32", substr("0" x 32 . $str, -32)));
print "$num\n";

my $m = Math::Base85::to_base85($num);
print "$str  ->\t$m\n";

#decode it ############################################## 

my $q = Math::Base85::from_base85($m);
print "back to decimal ->\t$q\n";

#I'm losing a 32 bit chunk here 
my $str1 = unpack("B32", pack("N", $q));

print "back to bin ->\n", $str1,"\n";

[download]
I'm not really a human, but I play one on earth. flash japh

In reply to Re: Binary string to base64 by zentara
in thread Binary string to base64 by albert

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