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// https://raw.githubusercontent.com/secure-systems-lab/dsse/9c813476bd36de70a5738c72e784f123ecea16af/envelope.proto
// 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 io.intoto;
option go_package = "github.com/sigstore/protobuf-specs/gen/pb-go/dsse";
option ruby_package = "Sigstore::DSSE";
// An authenticated message of arbitrary type.
message Envelope {
// Message to be signed. (In JSON, this is encoded as base64.)
// REQUIRED.
bytes payload = 1;
// String unambiguously identifying how to interpret payload.
// REQUIRED.
string payloadType = 2;
// Signature over:
// PAE(type, payload)
// Where PAE is defined as:
// PAE(type, payload) = "DSSEv1" + SP + LEN(type) + SP + type + SP + LEN(payload) + SP + payload
// + = concatenation
// SP = ASCII space [0x20]
// "DSSEv1" = ASCII [0x44, 0x53, 0x53, 0x45, 0x76, 0x31]
// LEN(s) = ASCII decimal encoding of the byte length of s, with no leading zeros
// REQUIRED (length >= 1).
repeated Signature signatures = 3;
}
message Signature {
// Signature itself. (In JSON, this is encoded as base64.)
// REQUIRED.
bytes sig = 1;
// *Unauthenticated* hint identifying which public key was used.
// OPTIONAL.
string keyid = 2;
}
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