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Re: MD5 Hash?

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Re: MD5 Hash?

Subject: Re: MD5 Hash?
From: Andreas Mayer <email@hidden>
Date: Sun, 27 Mar 2005 10:33:17 +0200


Am 27. Mrz 2005 um 08:52 Uhr schrieb Dave DeLong:

I'm looking for a way to create an MD5 hash from two strings.

#import <Foundation/Foundation.h>


@interface NSData (AMDigest)

- (NSData *)md5Digest;

- (NSData *)sha1Digest;

@end

#import "NSData_AMDigest.h"
#include <openssl/evp.h>
#include <openssl/err.h>


@implementation NSData (AMDigest)

- (NSData *)md5Digest
{
	// compute an MD5 digest.
	EVP_MD_CTX mdctx;
	unsigned char md_value[EVP_MAX_MD_SIZE];
	int md_len;
	EVP_DigestInit(&mdctx, EVP_md5());
	EVP_DigestUpdate(&mdctx, [self bytes], [self length]);
	EVP_DigestFinal(&mdctx, md_value, &md_len);
	return [NSData dataWithBytes: md_value length: md_len];
}

- (NSData *)sha1Digest
{
	// compute an SHA1 digest.
	EVP_MD_CTX mdctx;
	unsigned char md_value[EVP_MAX_MD_SIZE];
	int md_len;
	EVP_DigestInit(&mdctx, EVP_sha1());
	EVP_DigestUpdate(&mdctx, [self bytes], [self length]);
	EVP_DigestFinal(&mdctx, md_value, &md_len);
	return [NSData dataWithBytes: md_value length: md_len];
}

@end


Andreas

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References:  
  >MD5 Hash? (From: Dave DeLong <email@hidden>)




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