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Require PQ keys when changing numbers or distributing key material

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This commit is contained in:
Jon Chambers
2025-05-05 14:54:12 -04:00
committed by Jon Chambers
parent e43487155f
commit b400d49e77
11 changed files with 224 additions and 327 deletions
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30
service/src/main/java/org/whispersystems/textsecuregcm/entities/ChangeNumberRequest.java
View File

@@ -17,6 +17,7 @@ import javax.annotation.Nullable;
import jakarta.validation.Valid;
import jakarta.validation.constraints.AssertTrue;
import jakarta.validation.constraints.NotBlank;
import jakarta.validation.constraints.NotEmpty;
import jakarta.validation.constraints.NotNull;
import org.signal.libsignal.protocol.IdentityKey;
import org.whispersystems.textsecuregcm.util.ByteArrayAdapter;
@@ -51,34 +52,27 @@ public record ChangeNumberRequest(
arraySchema=@Schema(description="""
A list of synchronization messages to send to companion devices to supply the private keysManager
associated with the new identity key and their new prekeys.
Exactly one message must be supplied for each enabled device other than the sending (primary) device."""))
Exactly one message must be supplied for each device other than the sending (primary) device."""))
@NotNull @Valid List<@NotNull @Valid IncomingMessage> deviceMessages,
@Schema(description="""
A new signed elliptic-curve prekey for each enabled device on the account, including this one.
A new signed elliptic-curve prekey for each device on the account, including this one.
Each must be accompanied by a valid signature from the new identity key in this request.""")
@NotNull @Valid Map<Byte, @NotNull @Valid ECSignedPreKey> devicePniSignedPrekeys,
@NotNull @NotEmpty @Valid Map<Byte, @NotNull @Valid ECSignedPreKey> devicePniSignedPrekeys,
@Schema(description="""
A new signed post-quantum last-resort prekey for each enabled device on the account, including this one.
May be absent, in which case the last resort PQ prekeys for each device will be deleted if any had been stored.
If present, must contain one prekey per enabled device including this one.
Prekeys for devices that did not previously have any post-quantum prekeys stored will be silently dropped.
A new signed post-quantum last-resort prekey for each device on the account, including this one.
Each must be accompanied by a valid signature from the new identity key in this request.""")
@Valid Map<Byte, @NotNull @Valid KEMSignedPreKey> devicePniPqLastResortPrekeys,
@NotNull @NotEmpty @Valid Map<Byte, @NotNull @Valid KEMSignedPreKey> devicePniPqLastResortPrekeys,
@Schema(description="the new phone-number-identity registration ID for each enabled device on the account, including this one")
@NotNull Map<Byte, Integer> pniRegistrationIds) implements PhoneVerificationRequest {
@Schema(description="the new phone-number-identity registration ID for each device on the account, including this one")
@NotNull @NotEmpty Map<Byte, Integer> pniRegistrationIds) implements PhoneVerificationRequest {
public boolean isSignatureValidOnEachSignedPreKey(@Nullable final String userAgent) {
List<SignedPreKey<?>> spks = new ArrayList<>();
if (devicePniSignedPrekeys != null) {
spks.addAll(devicePniSignedPrekeys.values());
}
if (devicePniPqLastResortPrekeys != null) {
spks.addAll(devicePniPqLastResortPrekeys.values());
}
return spks.isEmpty() || PreKeySignatureValidator.validatePreKeySignatures(pniIdentityKey, spks, userAgent, "change-number");
final List<SignedPreKey<?>> spks = new ArrayList<>(devicePniSignedPrekeys.values());
spks.addAll(devicePniPqLastResortPrekeys.values());
return PreKeySignatureValidator.validatePreKeySignatures(pniIdentityKey, spks, userAgent, "change-number");
}
@AssertTrue

27
service/src/main/java/org/whispersystems/textsecuregcm/entities/PhoneNumberIdentityKeyDistributionRequest.java
View File

@@ -9,6 +9,7 @@ import com.fasterxml.jackson.databind.annotation.JsonDeserialize;
import io.swagger.v3.oas.annotations.media.ArraySchema;
import io.swagger.v3.oas.annotations.media.Schema;
import jakarta.validation.Valid;
import jakarta.validation.constraints.NotEmpty;
import jakarta.validation.constraints.NotNull;
import java.util.ArrayList;
import java.util.List;
@@ -29,36 +30,36 @@ public record PhoneNumberIdentityKeyDistributionRequest(
arraySchema=@Schema(description="""
A list of synchronization messages to send to companion devices to supply the private keys
associated with the new identity key and their new prekeys.
Exactly one message must be supplied for each enabled device other than the sending (primary) device.
Exactly one message must be supplied for each device other than the sending (primary) device.
"""))
List<@NotNull @Valid IncomingMessage> deviceMessages,
@NotNull
@NotEmpty
@Valid
@Schema(description="""
A new signed elliptic-curve prekey for each enabled device on the account, including this one.
A new signed elliptic-curve prekey for each device on the account, including this one.
Each must be accompanied by a valid signature from the new identity key in this request.""")
Map<Byte, @NotNull @Valid ECSignedPreKey> devicePniSignedPrekeys,
@NotNull
@NotEmpty
@Valid
@Schema(description="""
A new signed post-quantum last-resort prekey for each enabled device on the account, including this one.
May be absent, in which case the last resort PQ prekeys for each device will be deleted if any had been stored.
If present, must contain one prekey per enabled device including this one.
Prekeys for devices that did not previously have any post-quantum prekeys stored will be silently dropped.
A new signed post-quantum last-resort prekey for each device on the account, including this one.
Each must be accompanied by a valid signature from the new identity key in this request.""")
@Valid Map<Byte, @NotNull @Valid KEMSignedPreKey> devicePniPqLastResortPrekeys,
Map<Byte, @NotNull @Valid KEMSignedPreKey> devicePniPqLastResortPrekeys,
@NotNull
@NotEmpty
@Valid
@Schema(description="The new registration ID to use for the phone-number identity of each device, including this one.")
Map<Byte, Integer> pniRegistrationIds) {
public boolean isSignatureValidOnEachSignedPreKey(@Nullable final String userAgent) {
List<SignedPreKey<?>> spks = new ArrayList<>(devicePniSignedPrekeys.values());
if (devicePniPqLastResortPrekeys != null) {
spks.addAll(devicePniPqLastResortPrekeys.values());
}
return spks.isEmpty() || PreKeySignatureValidator.validatePreKeySignatures(pniIdentityKey, spks, userAgent, "distribute-pni-keys");
}
final List<SignedPreKey<?>> signedPreKeys = new ArrayList<>(devicePniSignedPrekeys.values());
signedPreKeys.addAll(devicePniPqLastResortPrekeys.values());
return PreKeySignatureValidator.validatePreKeySignatures(pniIdentityKey, signedPreKeys, userAgent, "distribute-pni-keys");
}
}