Provided by: libauthen-u2f-tester-perl_0.03-1_all 
NAME
Authen::U2F::Tester - FIDO/U2F Authentication Test Client
VERSION
version 0.03
SYNOPSIS
my $tester = Authen::U2F::Tester->new(
cert_file => $certfile,
key_file => $keyfile);
#
# Test a U2F registration
#
my $app_id = 'https://www.example.com';
my $challenge = Authen::U2F->challenge;
my $r = $tester->register($app_id, $challenge);
unless ($r->is_success) {
die $r->error_message;
}
print $res->client_data;
print $res->registration_data;
# the fields in $res can be used to verify the registration using
# Authen::U2F
my ($handle, $key) = Authen::U2F->registration_verify(
challenge => $challenge,
app_id => $app_id,
origin => $origin,
registration_data => $res->registration_data,
client_data => $res->client_data);
#
# Test a U2F Signing request
#
$r = $tester->sign($app_id, $challenge, $handle);
unless ($r->is_success) {
die $r->error_message;
}
print $res->client_data;
print $res->signature_data;
# verify the signing request with Authen::U2F
Authen::U2F->signature_verify(
challenge => $challenge,
app_id => $app_id,
origin => $app_id,
key_handle => $handle,
key => $key,
signature_data => $r->signature_data,
client_data => $r->client_data);
DESCRIPTION
This module implements a FIDO/U2F tester that can be used for testing web applications that support
FIDO/U2F. Think of this module as a "virtual" U2F security key.
METHODS
new(%args)
Constructor.
The following arguments are required:
• key_file
The location of the private key file.
• cert_file
The location of the "X.509" certificate file.
Alternatively, the key and certificate can be passed in directly as objects:
• key
An Crypt::PK::ECC object.
• certificate
An Crypt::OpenSSL::X509 object.
In order to create and use the tester, you will need both an Elliptic Curve key, and a SSL X.509
certificate. The key can be generated using OpenSSL:
% openssl ecparam -name secp256r1 -genkey -noout -out key.pem
Then this key can be used to generate a self signed X.509 certificate:
% openssl req -key key.pem -x509 -days 3560 -sha256 \
-subj '/C=US/ST=Texas/O=Untrusted U2F Org/CN=virtual-u2f' \
-out cert.pem
Note that this key is also used to encrypt key handles that the tester generates for registration
requests.
key(): Crypt::PK::ECC
Get the key for this tester.
keystore(): Authen::U2F::Tester::Role::Keystore
This returns the key store instance that the tester uses. The default key store is a "wrapped" key store
as described in the FIDO/U2F specs. What this means is it does not actually store anything, but instead
encrypts the private key using the tester's private key, and returns that as the key handle. This key
store will accept any encrypted private key as a valid key handle so long as it can be decrypted by the
tester's private key. This is similar to how many physical U2F devices work in the real world. See
Authen::U2F::Tester::Keystore::Wrapped for more information.
certificate(): Crypt::OpenSSL::X509
Get the SSL certificate that this tester uses.
register($app_id, $challenge, @keyhandles): Authen::U2F::Tester::RegisterResponse
Complete a registration request.
Returns a Authen::U2F::Tester::RegisterResponse on success, or an Authen::U2F::Error object on failure.
Arguments are:
• app_id: string
The application id
• challenge: string
The challenge parameter, in Base64 URL encoded format
• keyhandles: list (optional)
List of already registered keyhandles for the current user, in Base64 URL format.
Example:
my $app_id = 'https://www.example.com';
my $challenge = Authen::U2F->challenge;
my $res = $tester->register($app_id, $challenge);
unless ($res->is_success) {
die $res->error_message;
}
sign($app_id, $challenge, @keyhandles)
Complete a U2F signing request. Returns a Authen::U2F::Tester::SignResponse object on success,
Authen::U2F::Error object otherwise.
Arguments are:
• app_id
The appId value
• challenge
The challenge parameter, in Base64 URL encoded format
• keyhandles
List of possible keyhandles, in Base64 URL encoded format
Example:
my $app_id = 'https://www.example.com';
my $challenge = Authen::U2F->challenge;
my $res = $tester->sign($app_id, $challenge, $keyhandle);
unless ($res->is_success) {
die $res->error_message;
}
# signature and client data, which should be sent to relaying party for
# verification.
print $res->signature_data;
print $res->client_data;
SOURCE
The development version is on github at <http://https://github.com/mschout/perl-authen-u2f-tester> and
may be cloned from <git://https://github.com/mschout/perl-authen-u2f-tester.git>
BUGS
Please report any bugs or feature requests on the bugtracker website
<https://github.com/mschout/perl-authen-u2f-tester/issues>
When submitting a bug or request, please include a test-file or a patch to an existing test-file that
illustrates the bug or desired feature.
AUTHOR
Michael Schout <mschout@cpan.org>
COPYRIGHT AND LICENSE
This software is copyright (c) 2017 by Michael Schout.
This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5
programming language system itself.
perl v5.26.2 2018-04-12 Authen::U2F::Tester(3pm)