iPhone開發之BASE64加密和解密

#import <Foundation/Foundation.h>@interface Base64Code : NSObject+ (NSString * )encodeBase64:(NSString * )input;//加密+ (NSString * )decodeBase64:(NSString * )input;//解密@end

　　

#import "Base64Code.h"#import "GTMBase64.h"@implementation Base64Code//加密+ (NSString * )encodeBase64:(NSString * )input {     NSData * data = [input dataUsingEncoding:NSUTF8StringEncoding allowLossyConversion:YES];     // 轉換到base64     data = [GTMBase64 encodeData:data];     NSString * base64String = [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding];     return base64String; }//解密+ (NSString * )decodeBase64:(NSString * )input {     NSData * data = [input dataUsingEncoding:NSUTF8StringEncoding allowLossyConversion:YES];     // 轉換到base64     data = [GTMBase64 decodeData:data];     NSString * base64String = [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding];     return base64String; }@end

　　GTMBase64：http://code.google.com/p/google-toolbox-for-mac/source/browse/trunk/Foundation/