A69: Certificate Revocation List Enhancements #382
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erm-g
requested changes
Jul 26, 2023
AXX-crl-enhancements.md
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| Per RFC5280, during revocation checking one of three status should be returned - `RevocationUnrevoked`, `RevocationRevoked`, and `RevocationUndetermined`. The user must specify whether `RevocationUndetermined` should be treated as `RevocationRevoked` or `RevocationUnrevoked` (failing open vs. failing closed). | ||
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| Assumptions: | ||
| 1. There should be no direct linkage between this interface and the creation/distribution of CRLs. gRPC is a user of CRLs and credentials, not a PKI itself. |
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I'd add some 'high level overview' section (maybe as a comment to a diagram?) saying that existing impls use map as an in-memory storage and a provider to update it using some IOs. PKIs are completely out of scope of this gRFC
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Also let's add an assumption that we can't guess CRL provider by a name of a file / metadata of strings. However if someone wants to rely on it they can do a specific impl
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Added the second
For the first, this document has a structure defined by a template. I could have a High Level Overview sub-section in the Proposal section.
existing impls use map as an in-memory storage and a provider to update it using some IOs
I'm a little confused at this comment - the existing CRL impls don't do this?
gtcooke94
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ejona86
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Sep 29, 2023
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A few more comments on top of @erm-g's. But looks good.
@markdroth, @dfawley, can y'all take a look?
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The basic APIs for the CRL Reloading features. This adds external types to represent CRL Providers, CRLs, and CertificateInfo. Internally we will use `CrlImpl` - this layer is needed to hide OpenSSL details from the user. GRFC - grpc/proposal#382 Things Done * Add external API for `CrlProvider`, `Crl`, `CertInfo` (`CertInfo` is used during CRL lookup rather than passing the entire certificate). * Add code paths in `ssl_transport_security` to utilize CRL providers * Add `StaticCrlProvider` * Refactor `crl_ssl_transport_security_test.cc` so it is more extensible and can be used with providers
erm-g
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Nov 2, 2023
erm-g
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Nov 2, 2023
erm-g
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Nov 2, 2023
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This adds the directory reloader implementation of the CrlProvider. This will periodically reload CRL files in a directory per [gRFC A69](grpc/proposal#382) Included in this is the following: * A public API to create the `DirectoryReloaderCrlProvider` * A basic directory interface in gprpp and platform specific impls for getting the list of files in a directory (unfortunately prior C++17, there is no std::filesystem, so we have to have platform specific impls) * The implementation of `DirectoryReloaderCrlProvider` takes an event_engine and a directory interface. This allows us to test using the fuzzing event engine for time mocking, and to implement a test directory interface so we avoid having to make temporary directories and files in the tests. This is notably not in `include`, and the `CreateDirectoryReloaderCrlProvider` is the only way to construct one from the public API, so we don't expose the event engine and directory details to the user. --------- Co-authored-by: gtcooke94 <gtcooke94@users.noreply.github.com>
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) This adds the directory reloader implementation of the CrlProvider. This will periodically reload CRL files in a directory per [gRFC A69](grpc/proposal#382) Included in this is the following: * A public API to create the `DirectoryReloaderCrlProvider` * A basic directory interface in gprpp and platform specific impls for getting the list of files in a directory (unfortunately prior C++17, there is no std::filesystem, so we have to have platform specific impls) * The implementation of `DirectoryReloaderCrlProvider` takes an event_engine and a directory interface. This allows us to test using the fuzzing event engine for time mocking, and to implement a test directory interface so we avoid having to make temporary directories and files in the tests. This is notably not in `include`, and the `CreateDirectoryReloaderCrlProvider` is the only way to construct one from the public API, so we don't expose the event engine and directory details to the user. --------- Co-authored-by: gtcooke94 <gtcooke94@users.noreply.github.com>
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) This adds the directory reloader implementation of the CrlProvider. This will periodically reload CRL files in a directory per [gRFC A69](grpc/proposal#382) Included in this is the following: * A public API to create the `DirectoryReloaderCrlProvider` * A basic directory interface in gprpp and platform specific impls for getting the list of files in a directory (unfortunately prior C++17, there is no std::filesystem, so we have to have platform specific impls) * The implementation of `DirectoryReloaderCrlProvider` takes an event_engine and a directory interface. This allows us to test using the fuzzing event engine for time mocking, and to implement a test directory interface so we avoid having to make temporary directories and files in the tests. This is notably not in `include`, and the `CreateDirectoryReloaderCrlProvider` is the only way to construct one from the public API, so we don't expose the event engine and directory details to the user. --------- Co-authored-by: gtcooke94 <gtcooke94@users.noreply.github.com>
ejona86
approved these changes
Nov 20, 2023
markdroth
reviewed
Nov 27, 2023
markdroth
approved these changes
Jan 31, 2025
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