NAME

Crypt::Perl::RSA::PublicKey - object representation of an RSA public key

SYNOPSIS

#You’ll probably instantiate this class using Parser.pm
#or PrivateKey’s get_public_key() method.

#cf. JSON Web Algorithms (RFC 7518, page 5)
#These return 1 or 0 to indicate verification or non-verification.
$pbkey->verify_RS256($message, $sig);
$pbkey->verify_RS384($message, $sig);
$pbkey->verify_RS512($message, $sig);

#----------------------------------------------------------------------

my $enc = $pbkey->encrypt_raw($payload);

#----------------------------------------------------------------------

my $der = $pbkey->to_der();
my $pem = $pbkey->to_pem();

#For use in creating PKCS #10 CSRs and X.509 certificates
my $pub_der = $pbkey->to_subject_der();

#----------------------------------------------------------------------

$pbkey->size();                 #modulus length, in bits
$pbkey->modulus_byte_length();

#----------------------------------------------------------------------
# The following all return instances of Crypt::Perl::BigInt,
# a subclass of Math::BigInt.
# The pairs (e.g., modulus() and N()) are aliases.
#----------------------------------------------------------------------

$pbkey->modulus();
$pbkey->N();

$pbkey->publicExponent();
$pbkey->E();
$pbkey->exponent();         #another alias of publicExponent()