sodium.cr/spec/sodium/digest/blake2b_spec.cr

134 lines
3.8 KiB
Crystal

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.hexfinal.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.hexfinal.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.hexfinal
d = Sodium::Digest::Blake2b.new key: key, salt: salt2, personal: personal
d.update "foo".to_slice
saltout = d.hexfinal
d = Sodium::Digest::Blake2b.new key: key, salt: salt, personal: personal2
d.update "foo".to_slice
personalout = d.hexfinal
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
d = Sodium::Digest::Blake2b.new
expect_raises ArgumentError do
d.hexfinal Bytes.new(1)
end
expect_raises ArgumentError do
d.hexfinal Bytes.new(256)
end
end
it "can't final twice or update after final" do
d = Sodium::Digest::Blake2b.new
d.hexfinal
expect_raises Digest::FinalizedError do
d.hexfinal
end
expect_raises Digest::FinalizedError do
d.update Bytes.new(0)
end
end
it "dups" do
data = "foo".to_slice
d1 = Sodium::Digest::Blake2b.new
d2 = d1.dup
d3 = d2.dup
d1.update data
h1 = d1.hexfinal
d2.update data
h2 = d2.hexfinal
d3.update data
h3 = d3.hexfinal
h1.should eq h2
h1.should eq h3
end
end