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24 lines
554 B
Objective-C
24 lines
554 B
Objective-C
#import "NSString+MD5.h"
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#import <CommonCrypto/CommonDigest.h>
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@implementation NSString (MD5)
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- (NSString *)md5String {
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NSData *data = [self dataUsingEncoding:NSUTF8StringEncoding];
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if (data.length == 0) {
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return @"";
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}
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unsigned char buf[CC_MD5_DIGEST_LENGTH];
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CC_MD5(data.bytes, (CC_LONG)data.length, buf);
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NSMutableString *result = [NSMutableString stringWithCapacity:CC_MD5_DIGEST_LENGTH * 2];
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for (NSInteger i = 0; i < CC_MD5_DIGEST_LENGTH; ++i) {
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[result appendFormat:@"%02x", buf[i]];
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}
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return [result copy];
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}
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@end
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