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Add BLAKE3 hashing algorithm

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This uses the single-threaded C-based routines from libblake3.

This is not optimal performance-wise but should be a good starting point
for nix compatibility with BLAKE3 hashing until a more performant
implementation based on the multi-threaded BLAKE3 routines
(written in Rust) can be developed.
This commit is contained in:
silvanshade 2025-01-29 12:24:37 -07:00
parent a562d0b6ce
commit 1f56ea4c72
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9 changed files with 89 additions and 18 deletions
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42
src/libutil-tests/hash.cc
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@ -6,10 +6,52 @@
namespace nix {
class BLAKE3HashTest : public virtual ::testing::Test
{
public:
/**
* We set these in tests rather than the regular globals so we don't have
* to worry about race conditions if the tests run concurrently.
*/
ExperimentalFeatureSettings mockXpSettings;
private:
void SetUp() override
{
mockXpSettings.set("experimental-features", "blake3-hashes");
}
};
/* ----------------------------------------------------------------------------
* hashString
* --------------------------------------------------------------------------*/
TEST_F(BLAKE3HashTest, testKnownBLAKE3Hashes1) {
// values taken from: https://tools.ietf.org/html/rfc4634
auto s = "abc";
auto hash = hashString(HashAlgorithm::BLAKE3, s, mockXpSettings);
ASSERT_EQ(hash.to_string(HashFormat::Base16, true),
"blake3:6437b3ac38465133ffb63b75273a8db548c558465d79db03fd359c6cd5bd9d85");
}
TEST_F(BLAKE3HashTest, testKnownBLAKE3Hashes2) {
// values taken from: https://tools.ietf.org/html/rfc4634
auto s = "abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq";
auto hash = hashString(HashAlgorithm::BLAKE3, s, mockXpSettings);
ASSERT_EQ(hash.to_string(HashFormat::Base16, true),
"blake3:c19012cc2aaf0dc3d8e5c45a1b79114d2df42abb2a410bf54be09e891af06ff8");
}
TEST_F(BLAKE3HashTest, testKnownBLAKE3Hashes3) {
// values taken from: https://www.ietf.org/archive/id/draft-aumasson-blake3-00.txt
auto s = "IETF";
auto hash = hashString(HashAlgorithm::BLAKE3, s, mockXpSettings);
ASSERT_EQ(hash.to_string(HashFormat::Base16, true),
"blake3:83a2de1ee6f4e6ab686889248f4ec0cf4cc5709446a682ffd1cbb4d6165181e2");
}
TEST(hashString, testKnownMD5Hashes1) {
// values taken from: https://tools.ietf.org/html/rfc1321
auto s1 = "";