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fc5a7290e3
Before the introducee sends her ACK, she derives a master key from the ephemeral shared secret as before. Two nonces and a MAC key are then derived from the master key. The local introducee signs one of the nonces and calculates a MAC over her own identity public key, ephemeral public key, transport properties and timestamp. The local introducee includes the signature and MAC in her ACK. On receiving the remote introducee's ACK, the local introducee verifies the signature and MAC. Should the verification fail, an ABORT is sent to the introducer and the remote introducee that was added as inactive is deleted again.
67 lines
2.3 KiB
Java
67 lines
2.3 KiB
Java
package org.briarproject.api.contact;
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import org.briarproject.api.crypto.SecretKey;
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import org.briarproject.api.db.DbException;
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import org.briarproject.api.db.Transaction;
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import org.briarproject.api.identity.Author;
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import org.briarproject.api.identity.AuthorId;
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import java.util.Collection;
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public interface ContactManager {
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/** Registers a hook to be called whenever a contact is added. */
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void registerAddContactHook(AddContactHook hook);
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/** Registers a hook to be called whenever a contact is removed. */
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void registerRemoveContactHook(RemoveContactHook hook);
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/**
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* Stores a contact within the given transaction associated with the given
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* local and remote pseudonyms, and returns an ID for the contact.
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*/
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ContactId addContact(Transaction txn, Author remote, AuthorId local,
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SecretKey master, long timestamp, boolean alice, boolean verified,
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boolean active) throws DbException;
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/**
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* Stores a contact associated with the given local and remote pseudonyms,
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* and returns an ID for the contact.
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*/
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ContactId addContact(Author remote, AuthorId local,
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SecretKey master, long timestamp, boolean alice, boolean verified,
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boolean active) throws DbException;
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/** Returns the contact with the given ID. */
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Contact getContact(ContactId c) throws DbException;
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/** Returns all active contacts. */
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Collection<Contact> getActiveContacts() throws DbException;
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/** Removes a contact and all associated state. */
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void removeContact(ContactId c) throws DbException;
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/** Removes a contact and all associated state. */
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void removeContact(Transaction txn, ContactId c) throws DbException;
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/** Marks a contact as active or inactive. */
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void setContactActive(Transaction txn, ContactId c, boolean active)
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throws DbException;
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/** Return true if a contact with this name and public key already exists */
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boolean contactExists(Transaction txn, AuthorId remoteAuthorId,
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AuthorId localAuthorId) throws DbException;
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/** Return true if a contact with this name and public key already exists */
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boolean contactExists(AuthorId remoteAuthorId, AuthorId localAuthorId)
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throws DbException;
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interface AddContactHook {
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void addingContact(Transaction txn, Contact c) throws DbException;
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}
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interface RemoveContactHook {
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void removingContact(Transaction txn, Contact c) throws DbException;
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}
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}
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