require "../../spec_helper" require "../../../src/sodium/digest/blake2b" require "json" # From https://github.com/BLAKE2/BLAKE2/tree/master/testvectors test_vectors = [ { key: "000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f202122232425262728292a2b2c2d2e2f303132333435363738393a3b3c3d3e3f", input: "", output: "10ebb67700b1868efb4417987acf4690ae9d972fb7a590c2f02871799aaa4786b5e996e8f0f4eb981fc214b005f42d2ff4233499391653df7aefcbc13fc51568", }, { key: "000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f202122232425262728292a2b2c2d2e2f303132333435363738393a3b3c3d3e3f", input: "00", output: "961f6dd1e4dd30f63901690c512e78e4b45e4742ed197c3c5e45c549fd25f2e4187b0bc9fe30492b16b0d0bc4ef9b0f34c7003fac09a5ef1532e69430234cebd", }, ] # From https://github.com/emilbayes/blake2b/blob/master/test-vectors.json buf = File.read(Path[__DIR__].join("blake2b-test-vectors.json").to_s) more_vectors = Array(Hash(String, String | Int32)).from_json(buf).map do |h| { input: h["input"].to_s, output: h["out"].to_s, out_len: h["outlen"].to_i, key: h["key"].to_s, salt: h["salt"].to_s, personal: h["personal"].to_s, } end describe Sodium::Digest::Blake2b do it "test vectors" do test_vectors.each do |vec| d = Sodium::Digest::Blake2b.new 64, key: vec[:key].hexbytes d.update vec[:input].hexbytes d.hexdigest.should eq vec[:output] end more_vectors.each do |vec| salt = vec[:salt].empty? ? nil : vec[:salt].hexbytes personal = vec[:personal].empty? ? nil : vec[:personal].hexbytes d = Sodium::Digest::Blake2b.new vec[:out_len], key: vec[:key].hexbytes, salt: salt, personal: personal d.update vec[:input].hexbytes d.hexdigest.should eq vec[:output] end end it "produces different output with different salt or personal params" do key = Bytes.new Sodium::Digest::Blake2b::KEY_SIZE salt = Bytes.new Sodium::Digest::Blake2b::SALT_SIZE salt2 = Bytes.new Sodium::Digest::Blake2b::SALT_SIZE salt2 = salt.dup salt2[0] = 1 personal = Bytes.new Sodium::Digest::Blake2b::PERSONAL_SIZE personal2 = personal.dup personal2[0] = 1 d = Sodium::Digest::Blake2b.new key: key, salt: salt, personal: personal d.update "foo".to_slice output = d.hexdigest d = Sodium::Digest::Blake2b.new key: key, salt: salt2, personal: personal d.update "foo".to_slice saltout = d.hexdigest d = Sodium::Digest::Blake2b.new key: key, salt: salt, personal: personal2 d.update "foo".to_slice personalout = d.hexdigest output.should_not eq saltout output.should_not eq personalout saltout.should_not eq personalout end it "raises on invalid " do expect_raises ArgumentError do Sodium::Digest::Blake2b.new key: Bytes.new(128) end expect_raises ArgumentError do Sodium::Digest::Blake2b.new salt: Bytes.new(1) end expect_raises ArgumentError do Sodium::Digest::Blake2b.new salt: Bytes.new(128) end expect_raises ArgumentError do Sodium::Digest::Blake2b.new personal: Bytes.new(128) end end end