@interface NSString (MyExtensions) - (NSString *) md5; @end @implementation NSString (MyExtensions) - (NSString *) md5 { const char *cStr = [self UTF8String]; unsigned char result[16]; 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
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