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Versions: 10
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Contents
require 'spec_helper'
require 'aead/cipher'
describe AEAD::Cipher do
subject { AEAD::Cipher }
let(:aes_256_gcm) { subject.new('aes-256-gcm') }
let(:aes_256_ctr_hmac_sha_256) { subject.new('aes-256-ctr-hmac-sha-256') }
it 'must instantiate subclasses' do
subject.new('aes-256-gcm').
must_equal AEAD::Cipher::AES_256_GCM
subject.new('aes-256-ctr-hmac-sha-256').
must_equal AEAD::Cipher::AES_256_CTR_HMAC_SHA_256
end
it 'must generate nonces' do
self.aes_256_ctr_hmac_sha_256.generate_nonce.bytesize.
must_equal self.aes_256_ctr_hmac_sha_256.nonce_len
end
it 'must generate appropriately-sized keys' do
self.aes_256_gcm.generate_key.bytesize.
must_equal self.aes_256_gcm.key_len
end
it 'must compare signatures' do
left = SecureRandom.random_bytes(64)
right = SecureRandom.random_bytes(64)
subject.signature_compare(left, right).must_equal false
subject.signature_compare(left, left) .must_equal true
end
bench 'signature_compare on increasingly similar strings' do
assert_performance_constant 0.99999 do |n|
left = SecureRandom.random_bytes(10_000)
right = left.chars.take(n).join + SecureRandom.random_bytes(10_000 - n)
10.times { subject.signature_compare(left.downcase, right.downcase) }
end
end
bench 'signature_compare on different-sized strings' do
assert_performance_constant 0.99999 do |n|
left = SecureRandom.random_bytes(n)
right = SecureRandom.random_bytes(n + 1)
1_000.times { subject.signature_compare(left, right) }
end
end
bench 'signature_compare on increasingly large strings' do
assert_performance_linear 0.999 do |n|
string = SecureRandom.random_bytes(n * 500)
subject.signature_compare(string, string)
end
end
end
Version data entries
10 entries across 10 versions & 1 rubygems