1// Copyright 2020 Google LLC 2// 3// Licensed under the Apache License, Version 2.0 (the "License"); 4// you may not use this file except in compliance with the License. 5// You may obtain a copy of the License at 6// 7// http://www.apache.org/licenses/LICENSE-2.0 8// 9// Unless required by applicable law or agreed to in writing, software 10// distributed under the License is distributed on an "AS IS" BASIS, 11// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12// See the License for the specific language governing permissions and 13// limitations under the License. 14// 15//////////////////////////////////////////////////////////////////////////////// 16 17// Package subtle provides subtle implementations of the AEAD primitive. 18package subtle 19 20import internalaead "github.com/google/tink/go/internal/aead" 21 22const ( 23 intSize = 32 << (^uint(0) >> 63) // 32 or 64 24 maxInt = 1<<(intSize-1) - 1 25) 26 27// ValidateAESKeySize checks if the given key size is a valid AES key size. 28func ValidateAESKeySize(sizeInBytes uint32) error { 29 return internalaead.ValidateAESKeySize(sizeInBytes) 30} 31