LLVM ERROR: Could not acquire a cryptographic context: The specified procedure could not be found. (0x7F)

[snanang]

When decompiling my code, I found the following error:
LLVM ERROR: Could not acquire a cryptographic context: The specified procedure could not be found. (0x7F)

Below are some parts of the messages:
-> running SelfAssignOptimizer ( 1148.68s )
Warning: out of memory; trying to recover
-> running VarDefForLoopOptimizer ( 1149.69s )
-> running VarDefStmtOptimizer ( 1150.00s )
Warning: out of memory; trying to recover
-> running EmptyStmtOptimizer ( 1152.41s )
-> running GotoStmtOptimizer ( 1152.69s )
-> running SimplifyArithmExprOptimizer ( 1152.92s )
-> running DeadCodeOptimizer ( 1153.97s )
-> running DerefToArrayIndexOptimizer ( 1154.22s )
Warning: out of memory; trying to recover
-> running IfToSwitchOptimizer ( 1155.30s )
-> running CCastOptimizer ( 1155.43s )
Warning: out of memory; trying to recover
-> running CArrayArgOptimizer ( 1158.86s )
Running phase: variable renaming [readable] ( 1159.13s )
Running phase: converting constants to symbolic names ( 1170.18s )
LLVM ERROR: Could not acquire a cryptographic context: The specified procedure could not be found. (0x7F)
Error: Decompilation of file d:\tmp\autodraw.exe.bc failed

[snanang]

This is the python command I used:
python c:\retdec\bin\retdec-decompiler.py d:\tmp\autodraw.exe

[snanang]

Please help to figure out what I did wromg

[silverbacknet]

That's usually an indication that you've run out of memory. Did you try the 64-bit version?

Still, there are several Autodraws but if it's the one designed to use with Autodesk Inventor, you're talking about a 166mb file, which is going to require an obnoxious amount of memory no matter how you slice it. You should probably examine the file beforehand and determine a good small range of functions to decompile, instead of trying to do the whole program at once.

[s3rvac]

Hi. As @silverbacknet wrote above, you do not have enough memory, which is supported by the following lines in the output:

Warning: out of memory; trying to recover
...
Warning: out of memory; trying to recover

The Could not acquire a cryptographic context error is caused by insufficient memory and has already been discussed in #73 and #387, so see these two issues for more details. My suggestion is to use selective decompilation to decompile only the given functions:

python c:\retdec\bin\retdec-decompiler.py --select-functions MyFunction1,MyFunction2 --select-decode-only d:\tmp\autodraw.exe

or the given address ranges:

python c:\retdec\bin\retdec-decompiler.py --select-ranges 0x40000000-0x40005000 --select-decode-only d:\tmp\autodraw.exe

(These are just examples, you will need to adjust the names of the functions and ranges by yourself.)

[snanang]

Thank you for your prompt reply and suggestion, I will download the 64 bit retdec and try to decompile certain range.
The autodraw is the program that I developed my self and I lost the source code due to hard disk crash.