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  #1  
Old 01-14-2021, 17:20
Windoze Windoze is offline
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Old ElanLM SDK

Hello,

I am currently reversing an old target that uses ElanLM 4.1

I have found an API Guide on the CrackZ FlexLM page.
http://web.archive.org/web/20201002220102/http://woodmann.com/crackz/Flexlm.htm
But does anyone have the full SDK?

There is also a tutorial by pilgrim where he uses an old unix binary to get the symbols
http://web.archive.org/web/20200711052611/http://www.woodmann.com/crackz/Tutorials/Pilgelan.htm
Does anyone have this binary or anything other with ElanLM and not stripped symbols?

Thanks!

Windoze
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  #2  
Old 01-14-2021, 20:20
ketan ketan is offline
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It's 20 years old story. Wonder what do you expect to learn by reversing it.

Technically it's DES encryption, thus can be RE&keygenned 100%.

Some help files here: https://www35.zippyshare.com/v/ud3l91L4/file.html
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  #3  
Old 01-14-2021, 20:46
Windoze Windoze is offline
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I'm just playing around with some old software. Do you (or anyone else) happen to have the full sdk?
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  #4  
Old 01-15-2021, 05:38
ketan ketan is offline
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Nope. Always solved my targets in clean RE style :-)

Here is some essential info to save your time:

/*
extern int slm_endapi(void **);
extern int slm_gencode(void * , char *, char *, unsigned long);
extern char slm_getversion(void *);
extern int slm_key(void *, int, char *, void *, unsigned long);
extern char *slm_message(void *, char *, char *, int);
extern int slm_setversion(void *, int);
extern int slm_startapi(void *);
extern char __import slm_salt[40];
extern char __import slm_port_salt[4];

void * instance;
*/

#define SLM_ENCODE 0
#define SLM_DECODE 1

#define SLM_CODE_LEN 100 //?
#define SLM_FEATURE_LEN 32
#define SLM_MAX_REDUNDANT_SERVERS 31 //?
#define SLM_MULTIKEY_MAXNUMFEAT 11
#define SLM_VENDORDATA_LEN 94

typedef struct slm_keydata
{
long nlic[SLM_MULTIKEY_MAXNUMFEAT];
long soft_nlic[SLM_MULTIKEY_MAXNUMFEAT];
long licpak_id;
long server_count;
long multikey;
long resource_attached;
long licpak_type;
long test_what;
long test_op;
long test_vd_start;
long test_vd_length;
long replace_what;
long replace_vd_start;
long replace_vd_length;
time_t start_date;
time_t expiration;
time_t test_start_date;
time_t test_expiration;
char feature[SLM_FEATURE_LEN+1];
char code[SLM_MAX_REDUNDANT_SERVERS+1][SLM_CODE_LEN+1]; //char code[3232]
char vendordata[SLM_VENDORDATA_LEN+1];
char test_domain;
char test_vdata[SLM_VENDORDATA_LEN+1];
char domain;

} slm_keydata_t;
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  #5  
Old 01-16-2021, 06:58
CrackZ CrackZ is offline
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If I recall correctly, old SentinelLM SDK's v7.0/v7.1 or so have ElanLM headers/libs, if not drop me a priv msg because I'm sure I have them *somewhere* in an archive, once you can find the routines its relatively easy to make a keygen by calling the correct functions in your target (just have to fill in the key structure).
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  #6  
Old 01-16-2021, 23:13
Windoze Windoze is offline
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I can't send you a PM because of my user-level...

I think I got most of the needed functions, so the SDK is not that important anymore.
But if you find in in your archives I'd like to look at it anyways.
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  #7  
Old 03-03-2021, 04:02
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