93 lines
3.7 KiB
JavaScript
93 lines
3.7 KiB
JavaScript
"use strict";
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Object.defineProperty(exports, "__esModule", { value: true });
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exports.verifyTLogBody = verifyTLogBody;
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exports.verifyTLogInclusion = verifyTLogInclusion;
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/*
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Copyright 2023 The Sigstore Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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const v2_1 = require("@sigstore/protobuf-specs/rekor/v2");
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const error_1 = require("../error");
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const dsse_1 = require("./dsse");
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const hashedrekord_1 = require("./hashedrekord");
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const intoto_1 = require("./intoto");
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const checkpoint_1 = require("./checkpoint");
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const merkle_1 = require("./merkle");
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const set_1 = require("./set");
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// Verifies that the given tlog entry matches the supplied signature content.
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function verifyTLogBody(entry, sigContent) {
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const { kind, version } = entry.kindVersion;
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const body = JSON.parse(entry.canonicalizedBody.toString('utf8'));
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// validate body
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if (kind !== body.kind || version !== body.apiVersion) {
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throw new error_1.VerificationError({
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code: 'TLOG_BODY_ERROR',
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message: `kind/version mismatch - expected: ${kind}/${version}, received: ${body.kind}/${body.apiVersion}`,
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});
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}
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switch (kind) {
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case 'dsse':
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// Rekor V1 and V2 use incompatible types so we need to branch here based on version
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if (version == dsse_1.DSSE_API_VERSION_V1) {
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return (0, dsse_1.verifyDSSETLogBody)(body, sigContent);
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}
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else {
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const entryRekorV2 = v2_1.Entry.fromJSON(body);
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return (0, dsse_1.verifyDSSETLogBodyV2)(entryRekorV2, sigContent);
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}
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case 'intoto':
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return (0, intoto_1.verifyIntotoTLogBody)(body, sigContent);
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case 'hashedrekord':
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// Rekor V1 and V2 use incompatible types so we need to branch here based on version
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if (version == hashedrekord_1.HASHEDREKORD_API_VERSION_V1) {
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return (0, hashedrekord_1.verifyHashedRekordTLogBody)(body, sigContent);
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}
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else {
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const entryRekorV2 = v2_1.Entry.fromJSON(body);
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return (0, hashedrekord_1.verifyHashedRekordTLogBodyV2)(entryRekorV2, sigContent);
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}
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/* istanbul ignore next */
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default:
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throw new error_1.VerificationError({
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code: 'TLOG_BODY_ERROR',
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message: `unsupported kind: ${kind}`,
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});
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}
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}
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function verifyTLogInclusion(entry, tlogAuthorities) {
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let inclusionVerified = false;
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if (isTLogEntryWithInclusionPromise(entry)) {
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(0, set_1.verifyTLogSET)(entry, tlogAuthorities);
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inclusionVerified = true;
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}
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if (isTLogEntryWithInclusionProof(entry)) {
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const checkpoint = (0, checkpoint_1.verifyCheckpoint)(entry, tlogAuthorities);
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(0, merkle_1.verifyMerkleInclusion)(entry, checkpoint);
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inclusionVerified = true;
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}
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if (!inclusionVerified) {
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throw new error_1.VerificationError({
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code: 'TLOG_MISSING_INCLUSION_ERROR',
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message: 'inclusion could not be verified',
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});
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}
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return;
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}
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function isTLogEntryWithInclusionPromise(entry) {
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return entry.inclusionPromise !== undefined;
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}
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function isTLogEntryWithInclusionProof(entry) {
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return entry.inclusionProof !== undefined;
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}
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