iOS 中MD5加密

//MD5加密方法

-(NSString *)md5:(NSString *)input{

const char *cStr = [input UTF8String];

unsigned char digest[CC_MD5_DIGEST_LENGTH];

CC_MD5(cStr, strlen(cStr), digest);

NSMutableString *output = [NSMutableString stringWithCapacity:CC_MD5_DIGEST_LENGTH * 2];

for(int i = 0; i < CC_MD5_DIGEST_LENGTH; i++)

[output appendFormat:@"%02x", digest[i]];

return  output;

}

//调用MD5方法：

NSString *str = @"123456";

NSString *result = [self md5:str];

NSLog(@"%@",result);

base64加密

NSString *urlStr = @"http://rd.cailebang.com/System/DownLoad/page?";

    //加密

    NSData *bodyData = [urlStr dataUsingEncoding:NSUTF8StringEncoding];

    NSLog(@"bodyData---%@",bodyData);

    NSString *base64Str = [bodyData base64EncodedStringWithOptions:0];

    NSLog(@"base64----%@",base64Str);

    NSString *urlString = [urlStr stringByAppendingString:base64Str];

    NSURL *urlShare = [NSURL URLWithString:urlString];

    //解

    NSData *jieData = [[NSData alloc] initWithBase64EncodedString:base64Str options:NSDataBase64DecodingIgnoreUnknownCharacters];

    NSString *jieStr = [[NSString alloc] initWithData:jieData encoding:NSUTF8StringEncoding];

    NSLog(@"jieStr---%@",jieStr);