=pod

=encoding utf8

=head1 NAME

Crypt::OpenSSL::Base::Func - Base Functions, using the OpenSSL libraries

=head1 SYNOPSIS

    use Crypt::OpenSSL::Base::Func qw/aes_cmac/;

    my $key = '2b7e151628aed2a6abf7158809cf4f3c';

    my $msg_1 = '6bc1bee22e409f96e93d7e117393172a';
    my $mac_1 = aes_cmac($key, $msg_1, 'aes-128-cbc');
    print $mac_1, "\n";
    #07:0A:16:B4:6B:4D:41:44:F7:9B:DD:9D:D0:4A:28:7C

    my $msg_2 = '6bc1bee22e409f96e93d7e117393172aae2d8a571e03ac9c9eb76fac45af8e5130c81c46a35ce411';
    my $mac_2 = aes_cmac($key, $msg_2, 'aes-128-cbc');
    print $mac_2, "\n";
    #DF:A6:67:47:DE:9A:E6:30:30:CA:32:61:14:97:C8:27

=head1 DESCRIPTION

Use OpenSSL libraries, for the function defined in:

RFC4493 : aes_cmac

=head1 Methods

=head2 aes_cmac

    mac_hexstr = aes_cmac(key_hexstr, plaintext_hexstr, cipher_name)

see also openssl/crypto/cmac/cmac.c