获取MD5和SHA-1 [英] Getting MD5 and SHA-1
本文介绍了获取MD5和SHA-1的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我正在寻找帮助在我的iPhone应用程序中获取MD5和SHA-1。
有人能告诉我如何获得这些吗?
I am looking for some help in getting MD5 and SHA-1 in my iPhone app. Can anybody give me an idea on how to get these?
推荐答案
#include <CommonCrypto/CommonDigest.h>
-(NSString*) sha1:(NSString*)input
{
NSData *data = [input dataUsingEncoding: NSUTF8StringEncoding];
uint8_t digest[CC_SHA1_DIGEST_LENGTH];
CC_SHA1(data.bytes, data.length, digest);
NSMutableString* output = [NSMutableString stringWithCapacity:CC_SHA1_DIGEST_LENGTH * 2];
for(int i = 0; i < CC_SHA1_DIGEST_LENGTH; i++)
[output appendFormat:@"%02x", digest[i]];
return output;
}
- (NSString *) md5:(NSString *) input
{
const char *cStr = [input UTF8String];
unsigned char digest[CC_MD5_DIGEST_LENGTH];
CC_MD5( cStr, (CC_LONG)strlen(cStr), digest ); // This is the md5 call
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;
}
还可以查看我的博客文章 -
http://www.makebetterthings.com/blogs/iphone/how-to-get-md5-and-sha1-in-objective-c-ios-sdk/
also have a look at my blog post here - http://www.makebetterthings.com/blogs/iphone/how-to-get-md5-and-sha1-in-objective-c-ios-sdk/
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