sodium.cr/spec/sodium/cipher/chalsa_spec.cr

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require "../../spec_helper"
require "../../../src/sodium/cipher/chalsa"
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{% for name in %w(XSalsa20 Salsa20 XChaCha20 ChaCha20Ietf ChaCha20) %}
# TODO: verify against test vectors.
describe Sodium::Cipher::{{ name.id }} do
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it "xors" do
data = Bytes.new(100)
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cipher1 = Sodium::Cipher::{{ name.id }}.new
cipher2 = Sodium::Cipher::{{ name.id }}.new
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key = cipher1.random_key
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cipher2.key = key
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nonce = cipher1.random_nonce
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cipher2.nonce = nonce
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output = cipher1.update data
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output.should_not eq data # Verify encryption did something.
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cipher1.update(data).should_not eq output # Verify offset is incremented.
cipher1.final.should eq Bytes.new(0)
cipher2.update(output).should eq data
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cipher2.final.should eq Bytes.new(0)
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end
end
{% end %}