How to unzip the Waymo mini dataset from Google Drive?

[MaekTec]

Hi, I cannot unzip the files:

markus@computer:~/datasets/waymo$ cat training.tar.gz* | tar -xzv

gzip: stdin: not in gzip format
tar: Child died with signal 13
tar: Error is not recoverable: exiting now

Concatenation and extracting also does not work:

markus@computer:~/datasets/waymo$ cat training.tar.gz-* > full_archive.tar.gz
markus@computer:~/datasets/waymo$  tar xzvf full_archive.tar.gz 

gzip: stdin: not in gzip format
tar: Child returned status 1
tar: Error is not recoverable: exiting now

It looks like the files are PGP-encrypted archives, not standard .tar.gz files. Can you share the key?

markus@computer:~/datasets/waymo$ file training.tar.gz-001.af
training.tar.gz-001.af: PGP Secret Sub-key -