eldo_user

Eldo Netlist Setup
Protection of Encrypted Libraries
Coding and Encrypting a Protected Library
If you are an IP provider wishing to protect a library, you must include the .IP_protect command
in your library file (.lib).
Usage
.IP_protect IP_provider=NameOfTheIPProvider
+ IP_access_lib=NameOfTheAccessLibrary feature=NameOfTheFeature
+ ixl=ixl_crc ixl64=ixl64_crc
Arguments
• IP_provider=NameOfTheIPProvider
The name of the IP provider, as it will appear in messages. Use a simple string comprising
only letters (A-Z) and numbers (0-9). Do not use blanks.
• IP_access_lib=NameOfTheAccessLibrary
The name of the dynamic load library which communicates between Eldo and the actual
license manager. Note that NameOfTheAccessLibrary must be given without its extension.
Eldo will add the correct extension (such as “.so”) according to the platform. This library
will have to be located in a path listed in the LD_LIBRARY_PATH environment variable.
• feature=NameOfTheFeature
The feature name which will be checked-out to grant access to the protected library.
• ixl=ixl_crc, ixl_64=ixl64_crc
These are CRC values of the IP access libraries, as returned by the eldo_checksum.exe
utility provided in the AMS distribution. These CRC values must be provided, and are
checked by Eldo to verify the integrity of the IP access library. The eldo_checksum.exe
utility must be run once per physical platform.
Description
The .IP_protect command must be written inside a .PROTECT/.UNPROTECT area of the
device model library (.LIB). The device model library then has to be encrypted using the
standard eldo encryption tool, encrypt_eldo, which is provided with the AMS distribution. As
the .IP_protect command is inside a .PROTECT/.UNPROTECT area, it is encrypted as well,
and therefore cannot be read nor changed by the final user.
Tip
See “.IP_PROTECT”, “.PROTECT” and “.UNPROTECT” in the Eldo Reference Manual.
Related Topics
encrypt_eldo Tool
Description of the Loading and Control Process
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Eldo® User's Manual, 15.3