//
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// PGGCryptoDES.m
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// PGGCrypto
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//
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// Created by 陈鹏 on 2017/10/24.
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// Copyright © 2017年 penggege.CP. All rights reserved.
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// GitHub地址 https://github.com/penghero/PGGCrypto.git
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#import "PGGCryptoDES.h"
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#import "GTMBase64.h"
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#import <CommonCrypto/CommonCrypto.h>
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//#define PGGkey @"#probim*"
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//#define PGGiv @"#probim*"
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#define PGGkey @"abcabcabcabcabcabcabcabc"
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#define PGGiv @"1234567890000000"
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@implementation PGGCryptoDES
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// Des加密
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+(NSString *) encryptUseDES:(NSString *)plainText {
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NSString *ciphertext = nil;
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NSData *textData = [plainText dataUsingEncoding:NSUTF8StringEncoding];
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NSUInteger dataLength = [textData length];
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unsigned char buffer[1024];
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memset(buffer, 0, sizeof(char));
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size_t numBytesEncrypted = 0;
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CCCryptorStatus cryptStatus = CCCrypt(kCCEncrypt,
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kCCAlgorithmDES,
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kCCOptionPKCS7Padding,
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[PGGkey UTF8String],
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kCCKeySizeDES,
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[PGGiv UTF8String],
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[textData bytes],
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dataLength,
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buffer,
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1024,
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&numBytesEncrypted);
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if (cryptStatus == kCCSuccess) {
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NSData *data = [NSData dataWithBytes:buffer length:(NSUInteger)numBytesEncrypted];
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ciphertext = [GTMBase64 stringByEncodingData:data];
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}
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return ciphertext;
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}
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// Des解密
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+(NSString *)decryptUseDES:(NSString *)cipherText {
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NSString *plaintext = nil;
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NSData *cipherdata = [GTMBase64 decodeString:cipherText];
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unsigned char buffer[1024];
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memset(buffer, 0, sizeof(char));
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size_t numBytesDecrypted = 0;
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CCCryptorStatus cryptStatus = CCCrypt(kCCDecrypt,
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kCCAlgorithmDES,
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kCCOptionPKCS7Padding,
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[PGGkey UTF8String],
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kCCKeySizeDES,
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[PGGiv UTF8String],
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[cipherdata bytes],
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[cipherdata length],
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buffer,
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1024,
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&numBytesDecrypted);
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if(cryptStatus == kCCSuccess){
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NSData *plaindata = [NSData dataWithBytes:buffer length:(NSUInteger)numBytesDecrypted];
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plaintext = [[NSString alloc]initWithData:plaindata encoding:NSUTF8StringEncoding];
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}
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return plaintext;
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}
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@end
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