MD5 error in FIPS mode

[mphinney1100]

When trying to build 00_tiny I ran into this error:

File "/home/mphinney/charliecloud/bin/../lib/charliecloud/lark/load_grammar.py", line 1146, in do_import
h = hashlib.md5(text.encode('utf8')).hexdigest()                                                                                                                                             
ValueError: [digital envelope routines: EVP_DigestInit_ex] disabled for FIPS 

FIPS mode causes issues with MD5.
https://code.djangoproject.com/ticket/28401

[lucaudill]

re-assigning the issue to @mphinney1100, since the issue seems to only be reproducible on your system

[lucaudill]

Just a quick note about what I learned while looking into the issue:
The line that appears to be throwing the error isn't a part of Charliecloud, it's in lark, which seems (at least from my naive perspective) to limit our ability to address it. Reid suggested checking to see if a newer version of lark fixes the issue. Alternatively, we could try to monkey patch it. Good luck!

[reidpr]

From the current hashlib docs:

Changed in version 3.9: All hashlib constructors take a keyword-only argument usedforsecurity with default value True. A false value allows the use of insecure and blocked hashing algorithms in restricted environments. False indicates that the hashing algorithm is not used in a security context, e.g. as a non-cryptographic one-way compression function.

(Emphasis in original.)

[mphinney1100]

Just tested again without updating hashlib.md5 and I didn't run into that error. Issue might be moot