变更记录

序号 录入时间 录入人 备注
1 2015-02-27 Alfred Jiang -
2 2015-12-22 Alfred Jiang -

方案名称

数据加密 - MD5 加密

关键字

数据加密 \ 加密 \ 解密 \ MD5 \ 摘要算法

需求场景

  1. 对信息有特殊的 MD5 摘要算法需求

参考链接

  1. Stack Overflow

详细内容

NSString+MyAdditions.h

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@interface NSString (MyAdditions)
- (NSString *)md5;
@end

NSData+MyAdditions.h

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@interface NSData (MyAdditions)
- (NSString*)md5;
@end

NSString+MyAdditions.m

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#import "MyAdditions.h"
#import <CommonCrypto/CommonDigest.h> // Need to import for CC_MD5 access

@implementation NSString (MyAdditions)
- (NSString *)md5
{
const char *cStr = [self UTF8String];
unsigned char result[CC_MD5_DIGEST_LENGTH];
CC_MD5( cStr, strlen(cStr), result ); // This is the md5 call
return [NSString stringWithFormat:
@"%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x",
result[0], result[1], result[2], result[3],
result[4], result[5], result[6], result[7],
result[8], result[9], result[10], result[11],
result[12], result[13], result[14], result[15]
];
}
@end

NSData+MyAdditions.m

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@implementation NSData (MyAdditions)
- (NSString*)md5
{
unsigned char result[CC_MD5_DIGEST_LENGTH];
CC_MD5( self.bytes, self.length, result ); // This is the md5 call
return [NSString stringWithFormat:
@"%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x",
result[0], result[1], result[2], result[3],
result[4], result[5], result[6], result[7],
result[8], result[9], result[10], result[11],
result[12], result[13], result[14], result[15]
];
}
@end

效果图

(无)

备注

(无)