XChaCha20-Poly1305-IETF Test vectors.
Didactic Drunk
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@ -29,7 +29,7 @@ Crystal bindings for the [libsodium API](https://libsodium.gitbook.io/doc/)
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- [x] [Secret Stream](https://libsodium.gitbook.io/doc/secret-key_cryptography/secretstream)
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- [AEAD](https://libsodium.gitbook.io/doc/secret-key_cryptography/aead)
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- [ ] AES256-GCM (Requires hardware acceleration)
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- [x] [XChaCha20-Poly1305-IETF](https://libsodium.gitbook.io/doc/secret-key_cryptography/aead/chacha20-poly1305/xchacha20-poly1305_construction)
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- [x] ☑ [XChaCha20-Poly1305-IETF](https://libsodium.gitbook.io/doc/secret-key_cryptography/aead/chacha20-poly1305/xchacha20-poly1305_construction)
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- [ ] [ChaCha20-Poly1305-IETF](https://libsodium.gitbook.io/doc/secret-key_cryptography/aead/chacha20-poly1305/ietf_chacha20-poly1305_construction)
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- [ ] [ChaCha20-Poly1305](https://libsodium.gitbook.io/doc/secret-key_cryptography/aead/chacha20-poly1305)
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- [x] Combined and detached mode
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@ -1,33 +1,31 @@
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require "../../../spec_helper"
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require "../../../../src/sodium/cipher/aead/chalsa"
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combined_test_vectors = [
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detached_test_vectors = [
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{
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key: "1b27556473e985d462cd51197a9a46c76009549eac6474f206c4ee0844f68389",
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nonce: "69696ee955b62b73cd62bda875fc73d68219e0036b7a0b37",
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plaintext: "be075fc53c81f2d5cf141316ebeb0c7b5228c52a4c62cbd44b66849b64244ffce5e" \
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"cbaaf33bd751a1ac728d45e6c61296cdc3c01233561f41db66cce314adb310e3be8" \
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"250c46f06dceea3a7fa1348057e2f6556ad6b1318a024a838f21af1fde048977eb4" \
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"8f59ffd4924ca1c60902e52f0a089bc76897040e082f937763848645e0705",
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ciphertext: "f3ffc7703f9400e52a7dfb4b3d3305d98e993b9f48681273c29650ba32fc76ce483" \
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"32ea7164d96a4476fb8c531a1186ac0dfc17c98dce87b4da7f011ec48c97271d2c2" \
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"0f9b928fe2270d6fb863d51738b48eeee314a7cc8ab932164548e526ae902243685" \
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"17acfeabd6bb3732bc0e9da99832b61ca01b6de56244a9e88d5f9b37973f622a43d" \
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"14a6599b1f654cb45a74e355a5",
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# Test vector from libsodium's xchacha20poly1305-ietf test
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aead: "xchacha20-poly1305",
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key: "808182838485868788898a8b8c8d8e8f909192939495969798999a9b9c9d9e9f",
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nonce: "07000000404142434445464748494a4b0000000000000000",
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plaintext: "4c616469657320616e642047656e746c656d656e206f662074686520636c617373206f66202739393a204966204920636f756c64206f6666657220796f75206f6e6c79206f6e652074697020666f7220746865206675747572652c2073756e73637265656e20776f756c642062652069742e",
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additional: "50515253c0c1c2c3c4c5c6c7",
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ciphertext: "453c0693a7407f04ff4c56aedb17a3c0a1afff01174930fc22287c33dbcf0ac8b89ad929530a1bb3ab5e69f24c7f6070c8f840c9abb4f69fbfc8a7ff5126faeebbb55805ee9c1cf2ce5a57263287aec5780f04ec324c3514122cfc3231fc1a8b718a62863730a2702bb76366116bed09e0fd",
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tag: "5c6d84b6b0c1abaf249d5dd0f7f5a7ea",
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},
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]
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private def box_from_test_vector(vec)
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box = Sodium::SecretBox.new vec[:key].hexbytes
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box = Sodium::Cipher::Aead::XChaCha20Poly1305Ietf.new vec[:key].hexbytes
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nonce = Sodium::Nonce.new vec[:nonce].hexbytes
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plaintext = vec[:plaintext].hexbytes
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ciphertext = vec[:ciphertext].hexbytes
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additional = vec[:additional].hexbytes
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tag = vec[:tag].hexbytes
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{box, nonce, plaintext, ciphertext}
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{box, nonce, plaintext, ciphertext, additional, tag}
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end
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{% for name in %w(XChaCha20Poly1305Ietf) %}
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# TODO: verify against test vectors.
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describe Sodium::Cipher::Aead::{{ name.id }} do
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it "encrypts/decrypts in combined mode" do
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box = Sodium::Cipher::Aead::{{ name.id }}.new
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@ -90,31 +88,30 @@ end
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end
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end
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end
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{% end %}
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{% if false %}
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describe Sodium::Cipher::Aead do
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it "PyNaCl combined test vectors" do
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pending "Combined test vectors don't exist in libsodium, PyNaCl or RbNaCl. no ciphertext to compare against." do
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combined_test_vectors.each do |vec|
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box, nonce, plaintext, ciphertext = box_from_test_vector vec
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box, nonce, plaintext, ciphertext, additional = box_from_test_vector vec
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encrypted, _ = box.encrypt plaintext, nonce: nonce
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encrypted.should eq ciphertext
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decrypted = box.decrypt encrypted, nonce: nonce
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plaintext.should eq decrypted
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decrypted = box.decrypt ciphertext, nonce: nonce
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decrypted.should eq plaintext
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end
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end
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pending "detached test vectors" do
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it "PyNaCl detached test vectors" do
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detached_test_vectors.each do |vec|
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box, nonce, plaintext, ciphertext = box_from_test_vector vec
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box, nonce, plaintext, ciphertext, additional, tag = box_from_test_vector vec
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encrypted = box.encrypt_detached plaintext, nonce
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mac2, encrypted, _ = box.encrypt_detached plaintext, nonce: nonce, mac: tag, additional: additional
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mac2.should eq tag
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encrypted.should eq ciphertext
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decrypted = box.decrypt_detached encrypted, nonce
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plaintext.should eq decrypted
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decrypted = box.decrypt_detached ciphertext, nonce: nonce, mac: tag, additional: additional
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decrypted.should eq plaintext
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end
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end
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end
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