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Specificially for CertificateAuthorities and TransparencyLogs We need to be able to query the trustroot for CAs and logs to initialize our signers and based on the material we are signing. This will eventually allow us to init a client directly from a trustroot Signed-off-by: Appu Goundan <appu@google.com>
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77
sigstore-java/src/main/java/dev/sigstore/trustroot/CertificateAuthorities.java
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| /* | ||
| * Copyright 2023 The Sigstore Authors. | ||
| * | ||
| * Licensed under the Apache License, Version 2.0 (the "License"); | ||
| * you may not use this file except in compliance with the License. | ||
| * You may obtain a copy of the License at | ||
| * | ||
| * http://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, software | ||
| * distributed under the License is distributed on an "AS IS" BASIS, | ||
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| * See the License for the specific language governing permissions and | ||
| * limitations under the License. | ||
| */ | ||
| package dev.sigstore.trustroot; | ||
|
|
||
| import java.time.Instant; | ||
| import java.util.List; | ||
| import java.util.stream.Collectors; | ||
| import org.immutables.value.Value; | ||
| import org.immutables.value.Value.Derived; | ||
| import org.immutables.value.Value.Immutable; | ||
|
|
||
| @Immutable | ||
| @Value.Style( | ||
| depluralize = true, | ||
| depluralizeDictionary = {"certificateAuthority:certificateAuthorities"}) | ||
| public abstract class CertificateAuthorities { | ||
|
|
||
| public abstract List<CertificateAuthority> getCertificateAuthorities(); | ||
|
|
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| @Derived | ||
| public int size() { | ||
| return getCertificateAuthorities().size(); | ||
| } | ||
|
|
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| @Derived | ||
| public List<CertificateAuthority> all() { | ||
| return getCertificateAuthorities(); | ||
| } | ||
|
|
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| /** | ||
| * Find a CA by validity time, users of this method will need to then compare the key in the leaf | ||
| * to find the exact CA to validate against | ||
| * | ||
| * @param time the time the CA was expected to be valid (usually tlog entry time) | ||
| * @return a list of CAs that were valid at {@code time} | ||
| */ | ||
| public List<CertificateAuthority> find(Instant time) { | ||
| return getCertificateAuthorities().stream() | ||
| .filter(ca -> ca.getValidFor().getStart().compareTo(time) <= 0) | ||
| .filter(ca -> ca.getValidFor().getEnd().orElse(Instant.now()).compareTo(time) >= 0) | ||
| .collect(Collectors.toList()); | ||
| } | ||
|
|
||
| /** | ||
| * Get the one an only current Certificate Authority | ||
| * | ||
| * @return the current active CA | ||
| * @throws IllegalStateException if trust root does not contain exactly one active CA | ||
| */ | ||
| public CertificateAuthority current() { | ||
| var current = | ||
| getCertificateAuthorities().stream() | ||
| .filter(ca -> ca.getValidFor().getEnd().isEmpty()) | ||
| .collect(Collectors.toList()); | ||
| if (current.size() == 0) { | ||
| throw new IllegalStateException("Trust root contains no current certificate authorities"); | ||
| } | ||
| if (current.size() > 1) { | ||
| throw new IllegalStateException( | ||
| "Trust root contains multiple current certificate authorities (" + current.size() + ")"); | ||
| } | ||
| return current.get(0); | ||
| } | ||
| } |
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67 changes: 67 additions & 0 deletions
67
sigstore-java/src/main/java/dev/sigstore/trustroot/TransparencyLogs.java
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|---|---|---|
| @@ -0,0 +1,67 @@ | ||
| /* | ||
| * Copyright 2023 The Sigstore Authors. | ||
| * | ||
| * Licensed under the Apache License, Version 2.0 (the "License"); | ||
| * you may not use this file except in compliance with the License. | ||
| * You may obtain a copy of the License at | ||
| * | ||
| * http://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, software | ||
| * distributed under the License is distributed on an "AS IS" BASIS, | ||
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| * See the License for the specific language governing permissions and | ||
| * limitations under the License. | ||
| */ | ||
| package dev.sigstore.trustroot; | ||
|
|
||
| import java.time.Instant; | ||
| import java.util.Arrays; | ||
| import java.util.List; | ||
| import java.util.Optional; | ||
| import java.util.stream.Collectors; | ||
| import org.immutables.value.Value; | ||
| import org.immutables.value.Value.Derived; | ||
| import org.immutables.value.Value.Immutable; | ||
|
|
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| @Immutable | ||
| @Value.Style(depluralize = true) | ||
| public abstract class TransparencyLogs { | ||
|
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| public abstract List<TransparencyLog> getTransparencyLogs(); | ||
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| @Derived | ||
| public int size() { | ||
| return getTransparencyLogs().size(); | ||
| } | ||
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| @Derived | ||
| public List<TransparencyLog> all() { | ||
| return getTransparencyLogs(); | ||
| } | ||
|
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| public TransparencyLog current() { | ||
| var current = | ||
| getTransparencyLogs().stream() | ||
| .filter(tl -> tl.getPublicKey().getValidFor().getEnd().isEmpty()) | ||
| .collect(Collectors.toList()); | ||
| if (current.size() == 0) { | ||
| throw new IllegalStateException("Trust root contains no current transparency logs"); | ||
| } | ||
| if (current.size() > 1) { | ||
| throw new IllegalStateException( | ||
| "Trust root contains multiple current transparency logs (" + current.size() + ")"); | ||
| } | ||
| return current.get(0); | ||
| } | ||
|
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| public Optional<TransparencyLog> find(byte[] logId, Instant time) { | ||
| return getTransparencyLogs().stream() | ||
| .filter(tl -> Arrays.equals(tl.getLogId().getKeyId(), logId)) | ||
| .filter(tl -> tl.getPublicKey().getValidFor().getStart().compareTo(time) <= 0) | ||
| .filter( | ||
| tl -> | ||
| tl.getPublicKey().getValidFor().getEnd().orElse(Instant.now()).compareTo(time) >= 0) | ||
| .findAny(); | ||
| } | ||
| } |
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56 changes: 56 additions & 0 deletions
56
sigstore-java/src/test/java/dev/sigstore/trustroot/CertificateAuthoritiesTest.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,56 @@ | ||
| /* | ||
| * Copyright 2023 The Sigstore Authors. | ||
| * | ||
| * Licensed under the Apache License, Version 2.0 (the "License"); | ||
| * you may not use this file except in compliance with the License. | ||
| * You may obtain a copy of the License at | ||
| * | ||
| * http://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, software | ||
| * distributed under the License is distributed on an "AS IS" BASIS, | ||
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| * See the License for the specific language governing permissions and | ||
| * limitations under the License. | ||
| */ | ||
| package dev.sigstore.trustroot; | ||
|
|
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| import static org.junit.jupiter.api.Assertions.*; | ||
|
|
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| import java.net.URI; | ||
| import java.security.cert.CertPath; | ||
| import java.time.Instant; | ||
| import java.time.temporal.ChronoUnit; | ||
| import org.junit.jupiter.api.Assertions; | ||
| import org.junit.jupiter.api.Test; | ||
| import org.mockito.Mockito; | ||
|
|
||
| class CertificateAuthoritiesTest { | ||
| @Test | ||
| public void current_missing() { | ||
| Assertions.assertThrows( | ||
| IllegalStateException.class, | ||
| () -> ImmutableCertificateAuthorities.builder().build().current()); | ||
| } | ||
|
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| @Test | ||
| public void current_tooMany() { | ||
| var ca = | ||
| ImmutableCertificateAuthority.builder() | ||
| .certPath(Mockito.mock(CertPath.class)) | ||
| .uri(URI.create("abc")) | ||
| .subject(ImmutableSubject.builder().commonName("abc").organization("xyz").build()) | ||
| .validFor( | ||
| ImmutableValidFor.builder() | ||
| .start(Instant.now().minus(10, ChronoUnit.SECONDS)) | ||
| .build()) | ||
| .build(); | ||
| Assertions.assertThrows( | ||
| IllegalStateException.class, | ||
| () -> | ||
| ImmutableCertificateAuthorities.builder() | ||
| .addCertificateAuthorities(ca, ca) | ||
| .build() | ||
| .current()); | ||
| } | ||
| } |
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