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require 'spec_helper'
describe JSON::JWK do
describe '#initialize' do
let(:jwk) { JSON::JWK.new key }
subject { jwk }
shared_examples_for :jwk_with_kid do
it { should be_instance_of JSON::JWK }
describe 'kid' do
subject { jwk[:kid] }
it { should == jwk.thumbprint }
end
end
shared_examples_for :jwk_without_kid do
it { should be_instance_of JSON::JWK }
describe 'kid' do
subject { jwk[:kid] }
it { should be_blank }
end
end
context 'with OpenSSL::PKey::RSA' do
let(:key) { public_key }
it_behaves_like :jwk_with_kid
end
context 'with OpenSSL::PKey::EC' do
let(:key) { public_key :ecdsa }
it_behaves_like :jwk_with_kid
end
context 'with String' do
let(:key) { 'secret' }
it_behaves_like :jwk_with_kid
end
context 'with JSON::JWK' do
let(:key) do
JSON::JWK.new(
k: 'secret',
kty: :oct
)
end
it_behaves_like :jwk_with_kid
end
context 'with Hash' do
let(:key) do
{
k: 'secret',
kty: :oct
}
end
it_behaves_like :jwk_with_kid
end
context 'with nothing' do
let(:jwk) { JSON::JWK.new }
it_behaves_like :jwk_without_kid
end
end
describe '#content_type' do
let(:jwk) { JSON::JWK.new public_key }
it do
jwk.content_type.should == 'application/jwk+json'
end
end
context 'when RSA public key given' do
let(:jwk) { JSON::JWK.new public_key }
it { jwk.keys.collect(&:to_sym).should include :kty, :e, :n }
its(:kty) { jwk[:kty].should == :RSA }
its(:e) { jwk[:e].should == UrlSafeBase64.encode64(public_key.e.to_s(2)) }
its(:n) { jwk[:n].should == UrlSafeBase64.encode64(public_key.n.to_s(2)) }
context 'when kid/use options given' do
let(:jwk) { JSON::JWK.new public_key, kid: '12345', use: :sig }
it { jwk.keys.collect(&:to_sym).should include :kid, :use }
its(:kid) { jwk[:kid].should == '12345' }
its(:use) { jwk[:use].should == :sig }
end
describe '#thumbprint' do
context 'using default hash function' do
subject { jwk.thumbprint }
it { should == 'nuBTimkcSt_AuEsD8Yv3l8CoGV31bu_3gsRDGN1iVKA' }
end
context 'using SHA512 hash function' do
subject { jwk.thumbprint :SHA512 }
it { should == '6v7pXTnQLMiQgvJlPJUdhAUSuGLzgF8C1r3ABAMFet6bc53ea-Pq4ZGbGu3RoAFsNRT1-RhTzDqtqXuLU6NOtw' }
end
end
describe '#to_key' do
it { jwk.to_key.should be_instance_of OpenSSL::PKey::RSA }
end
end
context 'when EC public key given' do
let(:jwk) { JSON::JWK.new public_key(:ecdsa) }
let(:expected_coordinates) do
{
256 => {
x: 'saPyrO4Lh9kh2FxrF9y1QVmZznWnRRJwpr12UHqzrVY',
y: 'MMz4W9zzqlrJhqr-JyrpvlnaIIyZQE6DfrgPkxMAw1M'
},
384 => {
x: 'plzApyFnK7qzhg5XnIZbFj2hZoH2Vdl4-RFm7DnsNMG9tyqrpfq2RyjfKABbcFRt',
y: 'ixBzffhk3fcbmeipGLkvQBNCzeNm6QL3hOUTH6IFBzOL0Y7HsGTopNTTspLjlivb'
},
512 => {
x: 'AcMCD-a0a6rnE9TvC0mOqF_DGXRg5Y3iTb4eHNwTm2kD6iujx9M_f8d_FGHr0OhpqzEn4rYPYZouGsbIPEgL0q__',
y: 'AULYEd8l-bV_BI289aezhSLZ1RDF2ltgDPEy9Y7YtqYa4cJcpiyzVDMpXWwBp6cjg6TXINkoVrVXZhN404ihu4I2'
}
}
end
[256, 384, 512].each do |digest_length|
describe "EC#{digest_length}" do
let(:jwk) { JSON::JWK.new public_key(:ecdsa, digest_length: digest_length) }
it { jwk.keys.collect(&:to_sym).should include :kty, :crv, :x, :y }
its(:kty) { jwk[:kty].should == :EC }
its(:x) { jwk[:x].should == expected_coordinates[digest_length][:x] }
its(:y) { jwk[:y].should == expected_coordinates[digest_length][:y] }
end
end
describe 'unknown curve' do
it do
key = OpenSSL::PKey::EC.new('secp112r2').generate_key
expect do
JSON::JWK.new key
end.to raise_error JSON::JWK::UnknownAlgorithm, 'Unknown EC Curve'
end
end
describe '#thumbprint' do
context 'using default hash function' do
subject { jwk.thumbprint }
it { should == '-egRpLjyZCqxBh4OOfd8JSvXwayHmNFAUNkbi8exfhc' }
end
context 'using SHA512 hash function' do
subject { jwk.thumbprint :SHA512 }
it { should == 'B_yXDZJ9doudaVCj5q5vqxshvVtW2IFnz_ypvRt5O60gemkDAhO78L6YMyTWH0ZRm15cO2_laTSaNO9yZQFsvQ' }
end
end
describe '#to_key' do
it { jwk.to_key.should be_instance_of OpenSSL::PKey::EC }
end
end
context 'when shared secret given' do
let(:jwk) { JSON::JWK.new 'secret' }
its(:kty) { jwk[:kty].should == :oct }
its(:x) { jwk[:k].should == 'secret' }
describe '#thumbprint' do
context 'using default hash function' do
subject { jwk.thumbprint }
it { should == 'XZPWsTEZFIerowAF9GHzBtq5CkAOcVvIBnkMu0IIQH0' }
end
context 'using SHA512 hash function' do
subject { jwk.thumbprint :SHA512 }
it { should == 'rK7EtcEe9Xr0kryR9lNnyOTRe7Vb_BglbTBtbcVG2LzvL26_PFaMCwOtiUiXWfCK-wV8vcxjmvbcvV4ZxDE0FQ' }
end
end
describe '#to_key' do
it { jwk.to_key.should be_instance_of String }
end
end
describe 'unknown key type' do
it do
key = OpenSSL::PKey::DSA.generate 256
expect do
JSON::JWK.new key
end.to raise_error JSON::JWK::UnknownAlgorithm, 'Unknown Key Type'
end
end
end
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