* ENT-11728: Force use of LTS version of BC everywhere.
* ENT-11728: Removed extra task left in.
* ENT-11728: Revert to the now released 2.73.6 version of BC.
* ENT-11728: Switched to LTS version of BC. Also removed PQC algos as not supported in LTS.
* ENT-11728: Removed the SPHINCS PQC algorithm.
* ENT-11728: Added dependency on bcutil to fix missing class error.
The various crypto tests that were previously ignored have been re-enabled.
The abandoned i2p EdDSA library has been replaced with native support that was added in Java 15.
Java 17 (via the `SunEC` provider) does not support the secp256k1 curve (one of the two ECDSA curves supported in Corda). This would not normally have been an issue as secp256k1 is already taken care of by Bouncy Castle. However, this only works if the `Crypto` API is used or if `”BC”` is explicitly specified as the provider (e.g. `Signature.getInstance(“SHA256withECDSA”, “BC”)`). If no provider is specified, which is what is more common, and actually what the Java docs recommend, then this doesn’t work as the `SunEC` provider is selected. To resolve this, a custom provider was created, installed just in front of `SunEC`, which “augments” `SunEC` by delegating to Bouncy Castle if keys or parameters for secp256k1 are encountered.
`X509Utilities.createCertificate` now calls `X509Certificate.verify()` to verify the created certificate, rather than using the Bouncy Castle API. This is more representative of how certificates will be verified (e.g. during SSL handshake) and weeds out other issues (such as unsupported curve error for secp256k1).
`BCCryptoService` has been renamed to `DefaultCryptoService` as it no longer explicitly uses Bouncy Castle but rather uses the installed security providers. This was done to fix a failing test. Further, `BCCryptoService` was already relying on the installed providers in some places.
The hack to get Corda `SecureRandom` working was also resolved. Also, as an added bonus, tests which ignored `SPHINCS256_SHA256` have been reinstated.
Note, there is a slightly inconsistency between how EdDSA and ECDSA keys are handled (and also RSA). For the later, Bouncy Castle is preferred, and methods such as `toSupportedKey*` will convert any JDK class to Bouncy Castle. For EdDSA the preference is the JDK (`SunEC`). However, this is simply a continuation of the previous preference of the i2p library over Bouncy Castle.
This requires Kotlin 1.2 versions of core and serialization (core-1.2 and serialization-1.2 respectively), which are just "shell" modules and which compile the existing source code with Kotlin 1.2. The 1.2 plugin does not work with the current version of Gradle and so the 1.2 compiler has to be called directly.
Now with two versions of Kotlin in the code base, each module needs to have its version manually specified to ensure a clean separation. Otherwise, the default Kotlin version can override 1.2 when needed.
Some of the code was tidied-up or improved to enable it to be cross-compiled. For post-1.2 APIs being used, they have been copied into core-1.2 with the same method signatures. OpenTelemetryComponent was moved to node-api, along with the dependency, to avoid also having a 1.2 version for the opentelemetry module.
* ENT-11055: Basic external verification
Introduction of the external transaction verifier, a separate JVM process for verifying `SignedTransaction`s. The end goal is for this verifier to be built with Kotlin 1.2 so that it creates a compatible verification environment for transactions with 4.11 contracts. For now however the verifier is built against Kotlin 1.8, same as the node.
External verification is enabled when the the system property `net.corda.node.verification.external` is set to `true`. When enabled, all verification requests made via `SignedTransaction.verify` are sent to the external verifier, regardless of the transaction content. It will do the vast bulk of the verification and then send the result back, namely if an exception occurred. If it did, then it's re-thrown in the node.
The external verifier is a stateless process, with no connection to the node's database. All transaction resolution information needed to create the relevant ledger transaction object are made to the node, which waits in a loop servicing these requests until it receives the result. The verifier Jar is embedded in the Corda node Jar, and is extracted and run when needed for the first time. The node opens up a local port for the verifier to communicate with, which is specified to the verifier in the process command line. This all means there is no extra configuration or deployment required to support external verification.
The existing code had some initial attempts and abstractions to support a future external verification feature. However,
they were either incorrect or didn't quite fit. One such example was `TransactionVerifierService`. It incorrectly operated on the `LedgerTransaction` level, which doesn't work since the transaction needs to be first serialised. Instead a new abstraction, `VerificationSupport` has been introduced, which represents all the operations needed to resolve and verify a `SignedTransaction`, essentially replacing `ServicesForResolution` (a lot of the changes are due to this). The external verifier implements this with a simple RPC mechanism, whilst the node needed a new (internal) `ServiceHub` abstraction, `VerifyingServiceHub`. `ServicesForResolution` hasn't been deleted since it's public API, however all classes implementing it must also implement `VerifyingServiceHub`. This is possible to do without breaking compatibility since `ServicesForResolution` is annotated with `@DoNotImplement`.
Changes to `api-current.txt` were made due to the removal of `TransactionVerifierService`, which was clearly indicated as an internal class, and returning `TransactionBuilder.toLedgerTransactionWithContext` back to an internal method.
* Address review comments
* One bulk load states method
* Merge fix
Major changes due to JDK 17:
1. JDK17 JCE Provider now has built-in support for eddsas, corda uses
the bouncycastle (i2p) implementation. This PR removes the conflicting
algorithms from the built-in JCE provider.
2. JavaScript scripting has been removed from the JDK, the corda log4j config was using
scripting to conditionally output additional diagnostic info if the MDC
was populated. This PR has removed the scripting.
3. The artifactory plug-ins used are now deprecated, this PR has removed them
and uses the same code as Corda 5 for publishing to artifactory.
4. Javadoc generation has been modified to use the latest dokka plug-ins.
5. Gradle 7.6 has implemented an incredibly annoying change where transitive
dependencies are not put on the compile classpath, so that they have to be
explicitly added as dependencies to projects.
6. Mockito has been updated, which sadly meant that quite a few source files
have to changes to use the new (org.mockito.kotlin) package name. This makes
this PR appear much larger than it is.
7. A number of tests have been marked as ignored to get a green, broadly they fall
into 3 classes.
The first is related to crypto keypair tests, it appears some logic
in the JDK prefers to use the SunJCE implementation and we prefer to use
bouncycastle. I believe this issue can be fixed with better test setup.
The second group is related to our use of a method called "uncheckedCast(..)",
the purpose of this method was to get rid of the annoying unchecked cast compiler
warning that would otherwise exist. It looks like the Kotlin 1.9 compiler type
inference differs and at runtime sometimes the type it infers is "Void" which causes
an exception at runtime. The simplest solution is to use an explicit cast instead of
unchecked cast, Corda 5 have removed unchecked cast from their codebase.
The third class are a number of ActiveMQ tests which appear to have a memory leak somewhere.
