fix(transport): Attempt to load RSA private keys in rustls #39
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Currently, using an RSA key - or indeed any text which is not a PEM-encoded PKCS8-format key with RusTLS panics with an index-out-of- range exception. This commit introduces two new types of `TlsError` which indicate problems with loading a certificate or private key: - `CertificateParseError`, indicating that the certificate cannot be parsed - `PrivateKeyParseError`, indicating that the private key cannot be parsed. Additionally, in the case that reading the private key as PKCS8 fails, we now try loading it as an RSA key before failing.
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Motivation
Currently, using an RSA key - or indeed any text which is not a PEM-encoded PKCS8-format key with RusTLS panics with an index-out-of- range exception. There is a similar problem loading certificates as well as private keys.
Solution
This commit introduces two new types of
TlsErrorwhich indicate problems with loading a certificate or private key:CertificateParseError, indicating that the certificate cannot be parsed.PrivateKeyParseError, indicating that the private key cannot be parsed.Additionally, in the case that reading the private key as PKCS8 fails, we now try loading it as an RSA key before failing.
This is not necessarily a complete solution, since the
Serverbuilder calls unwrap on the resulting error (which still panics), but the reason is at least now clearer since the variant of theTlsErroris displayed.