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Tink is a small cryptographic library that provides a safe, simple, agile and fast way to accomplish some common cryptographic tasks.
// Copyright 2020 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.
//
////////////////////////////////////////////////////////////////////////////////
package com.google.crypto.tink.jwt;
final class JwtNames {
/**
* Registered claim names, as defined in https://tools.ietf.org/html/rfc7519#section-4.1. If
* update, please update validateClaim().
*/
static final String CLAIM_ISSUER = "iss";
static final String CLAIM_SUBJECT = "sub";
static final String CLAIM_AUDIENCE = "aud";
static final String CLAIM_EXPIRATION = "exp";
static final String CLAIM_NOT_BEFORE = "nbf";
static final String CLAIM_ISSUED_AT = "iat";
static final String CLAIM_JWT_ID = "jti";
/**
* Supported protected headers, as described in https://tools.ietf.org/html/rfc7515#section-4.1
*/
static final String HEADER_ALGORITHM = "alg";
static final String HEADER_KEY_ID = "kid";
static final String HEADER_TYPE = "typ";
static final String HEADER_CRITICAL = "crit";
static void validate(String name) {
if (isRegisteredName(name)) {
throw new IllegalArgumentException(
String.format(
"claim '%s' is invalid because it's a registered name; use the corresponding"
+ " setter method.",
name));
}
}
static boolean isRegisteredName(String name) {
return name.equals(CLAIM_ISSUER)
|| name.equals(CLAIM_SUBJECT)
|| name.equals(CLAIM_AUDIENCE)
|| name.equals(CLAIM_EXPIRATION)
|| name.equals(CLAIM_NOT_BEFORE)
|| name.equals(CLAIM_ISSUED_AT)
|| name.equals(CLAIM_JWT_ID);
}
private JwtNames() {}
}
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