Extend key -read and -write functions#279
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If an existing key or the new key is not intended to be stored in a file, the current implementation requires the creation of temporary files with all its odds (cleanup, symlink attack, mktemp) This change allows to provide the key in many different ways: A filename of "-" translates to <stdin> for reading and <stdout> for writing. If the file named by "filename" does not exist, check whether it contains a "-----BEGIN" and try interpreting the filename itself as key. Extend documentation in README.md Signed-off-by: Christian Hohnstaedt <christian@hohnstaedt.de>
AndreasFuchsTPM
approved these changes
Mar 19, 2024
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@chris2511 This is really useful and we were also thinking in the same way. I was using /tmp folder for key creation while using tpm2tss-genkey but our static code analyzer Sonar was warning about this security hotspot. |
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If an existing key or the new key is not intended to be stored in a file, the current implementation requires the creation of temporary files with all its odds (cleanup, symlink attack, mktemp)
This change allows to provide the key in many different ways:
A filename of "-" translates to for reading and for writing.
If the file named by "filename" does not exist,
check whether it contains a "-----BEGIN" and try interpreting the filename itself as key.
Extend documentation in README.md