mirror of
https://github.com/kidfromjupiter/nearby.git
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66 lines
2.1 KiB
Objective-C
66 lines
2.1 KiB
Objective-C
// Copyright 2020 Google LLC
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//
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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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//
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// https://www.apache.org/licenses/LICENSE-2.0
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//
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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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#import "platform/impl/ios/Source/Shared/GNCUtils.h"
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#import <CommonCrypto/CommonDigest.h>
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#import "GoogleToolboxForMac/GTMStringEncoding.h"
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NS_ASSUME_NONNULL_BEGIN
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const int GNCSocketVersion = 2;
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NSData *GNCSha256Data(NSData *data) {
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unsigned char output[CC_SHA256_DIGEST_LENGTH];
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CC_LONG length = (CC_LONG)data.length;
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if (!CC_SHA256(data.bytes, length, output)) return nil;
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return [NSData dataWithBytes:output length:CC_SHA256_DIGEST_LENGTH];
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}
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NSData *GNCSha256String(NSString *string) {
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return GNCSha256Data([string dataUsingEncoding:NSUTF8StringEncoding]);
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}
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NSData *GNCMd5Data(NSData *data) {
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unsigned char md5Buffer[CC_MD5_DIGEST_LENGTH];
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CC_MD5(data.bytes, (CC_LONG)data.length, md5Buffer);
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return [NSData dataWithBytes:md5Buffer length:CC_MD5_DIGEST_LENGTH];
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}
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NSData *GNCMd5String(NSString *string) {
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return GNCMd5Data([string dataUsingEncoding:NSUTF8StringEncoding]);
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}
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static GTMStringEncoding *GNCBase64WebSafeEncodingNoPadding() {
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static dispatch_once_t onceToken;
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static GTMStringEncoding *encoding;
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dispatch_once(&onceToken, ^{
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encoding = [GTMStringEncoding stringEncodingWithString:
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@"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-_"];
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[encoding setDoPad:NO];
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});
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return encoding;
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}
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NSString *GNCBase64Encode(NSData *data) {
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return [GNCBase64WebSafeEncodingNoPadding() encode:data error:nil];
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}
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NSData *GNCBase64Decode(NSString *string) {
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return [GNCBase64WebSafeEncodingNoPadding() decode:string error:nil];
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}
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NS_ASSUME_NONNULL_END
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