X-Git-Url: http://www.git.stargrave.org/?a=blobdiff_plain;f=internal%2Fthirdparty.go;fp=internal%2Fthirdparty.go;h=9c1b726ac6ae9bddd81a42bc4e95db5c998cb4c3;hb=be69a4fc0c240c2772a0f0bf0955b39783e4c48a;hp=0000000000000000000000000000000000000000;hpb=ce902a58a32f42801603475c67dd75da86d4502a;p=meta4ra.git

diff --git a/internal/thirdparty.go b/internal/thirdparty.go
new file mode 100644
index 0000000..9c1b726
--- /dev/null
+++ b/internal/thirdparty.go
@@ -0,0 +1,95 @@
+//go:build thirdparty
+
+// meta4ra -- Metalink 4.0 utilities
+// Copyright (C) 2021-2024 Sergey Matveev <stargrave@stargrave.org>
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, version 3 of the License.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+package internal
+
+import (
+	"hash"
+
+	"github.com/dchest/skein"
+	"go.cypherpunks.ru/gogost/v5/gost34112012256"
+	"go.cypherpunks.ru/gogost/v5/gost34112012512"
+	"golang.org/x/crypto/blake2b"
+	"golang.org/x/crypto/sha3"
+	"lukechampine.com/blake3"
+)
+
+func init() {
+	// Those are better than SHA2, prepend them
+	name := "shake256"
+	BuiltinHashes[name] = func() hash.Hash {
+		return sha3.NewShake256()
+	}
+	HashesDefault = name + ":builtin," + HashesDefault
+
+	name = "shake128"
+	BuiltinHashes[name] = func() hash.Hash {
+		return sha3.NewShake128()
+	}
+	HashesDefault = name + ":builtin," + HashesDefault
+
+	name = "skein-512"
+	BuiltinHashes[name] = func() hash.Hash {
+		return skein.NewHash(64)
+	}
+	HashesDefault = name + ":builtin," + HashesDefault
+
+	name = "blake2b-256"
+	BuiltinHashes[name] = func() hash.Hash {
+		h, err := blake2b.New(32, nil)
+		if err != nil {
+			panic(err)
+		}
+		return h
+	}
+	HashesDefault = name + ":builtin," + HashesDefault
+
+	name = "blake2b-512"
+	BuiltinHashes[name] = func() hash.Hash {
+		h, err := blake2b.New(64, nil)
+		if err != nil {
+			panic(err)
+		}
+		return h
+	}
+	HashesDefault = name + ":builtin," + HashesDefault
+
+	name = "blake3-256"
+	BuiltinHashes[name] = func() hash.Hash {
+		return blake3.New(32, nil)
+	}
+	HashesDefault = name + ":builtin," + HashesDefault
+
+	// Those are slower than SHA2, append them
+	name = "streebog-512"
+	BuiltinHashes[name] = func() hash.Hash {
+		return gost34112012512.New()
+	}
+	HashesDefault = HashesDefault + "," + name + ":builtin"
+
+	name = "streebog-256"
+	BuiltinHashes[name] = func() hash.Hash {
+		return gost34112012256.New()
+	}
+	HashesDefault = HashesDefault + "," + name + ":builtin"
+
+	name = "xxh3-128"
+	BuiltinHashes[name] = func() hash.Hash {
+		return NewXXH3128()
+	}
+	HashesDefault = HashesDefault + "," + name + ":builtin"
+}