open-vault/changelog/14875.txt
Alexander Scheel 8904f2a55a
Fix handling of default zero SignatureBits value with Any key type in PKI Secrets Engine (#14875)
* Correctly handle minimums, default SignatureBits

When using KeyType = "any" on a role (whether explicitly or implicitly
via a sign-verbatim like operation), we need to update the value of
SignatureBits from its new value 0 to a per-key-type default value. This
will allow sign operations on these paths to function correctly, having
the correctly inferred default signature bit length.

Additionally, this allows the computed default value for key type to be
used for minimum size validation in the RSA/ECDSA paths. We additionally
enforce the 2048-minimum in this case as well.

Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com>

* Fix defaults and validation of "any" KeyType

When certutil is given the placeholder any keytype, it attempts to
validate and update the default zero value. However, in lacking a
default value for SignatureBits, it cannot update the value from the
zero value, thus causing validation to fail.

Add more awareness to the placeholder "any" value to certutil.

Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com>

* Add role-based regression tests for key bits

This adds regression tests for Key Type, Key Bits, and Signature Bits
parameters on the role. We test several values, including the "any"
value to ensure it correctly restricts key sizes.

Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com>

* Add sign-verbatim test for key type

This ensures that we test sign-verbatim against a variety of key types.

Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com>

* Add changelog entry

Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com>

Co-authored-by: Steven Clark <steven.clark@hashicorp.com>
2022-04-04 15:26:54 -04:00

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```release-note:bug
secrets/pki: Fix handling of "any" key type with default zero signature bits value.
```