Pure Perl 6 implementation of RSA public key encryption.
my $crypt = Crypt::RSA.new;
my ($public,$private) = $crypt.generate-keys;
my $message = 123456789;
my $encrypted = $crypt.encrypt($message);
my $decrypted = $crypt.decrypt($encrypted);
my $message = 123456789;
my $signature = $crypt.generate-signature($message);
die unless $crypt.verify-signature($message,$signature);
This is a very simplistic implementation of the RSA algorithm for public key encryption.
By default, it relies on Perl 6 built-ins for randomness,
but the constructor takes two optional arguments:
random-prime-generator(UInt $digits) and random-range-picker(Range $range)
that can be used instead. Any arguments to generate-keys
(such as the number of digits or number of bits) will be passed
on to random-prime-generator.
use Crypt::Random;
use Crypt::Random::Extra;
my $crypt = Crypt::RSA.new(
random-prime-generator => sub {
crypt_random_prime()
},
random-range-picker => sub ($range) {
my $size = log($range, 10).Int;
my $rand = crypt_random_uniform($range.max,$size);
return $range[$rand];
}
);
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