Add a new sign key manager for the PQ signature scheme.

PiperOrigin-RevId: 389138723

1 files changed, 42 insertions, 0 deletions

diff --git a/proto/experimental/pqcrypto/dilithium.proto b/proto/experimental/pqcrypto/dilithium.proto
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+++ b/proto/experimental/pqcrypto/dilithium.proto
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+// Copyright 2021 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+///////////////////////////////////////////////////////////////////////////////
+syntax = "proto3";
+
+package google.crypto.tink;
+
+// Definitions for Dilithium Digital Signature Algorithm.
+// See https://pq-crystals.org/dilithium/data/dilithium-specification-round3.pdf
+message DilithiumKeyFormat {
+  uint32 version = 1;
+}
+
+// key_type: type.googleapis.com/google.crypto.tink.DilithiumPublicKey
+message DilithiumPublicKey {
+  // Required.
+  uint32 version = 1;
+  // Required.
+  bytes key_value = 2;
+}
+
+// key_type: type.googleapis.com/google.crypto.tink.DilithiumPrivateKey
+message DilithiumPrivateKey {
+  // Required.
+  uint32 version = 1;
+  // Required.
+  bytes key_value = 2;
+  // The corresponding public key.
+  DilithiumPublicKey public_key = 3;
+}