SecureMessage class abstract interface

Interface for encrypted secure messages (second stage).

Represents an InstantMessage that has been encrypted with a symmetric key, providing confidentiality for the message content. The original plaintext content is replaced with encrypted data and encrypted keys for decryption.

Serialized format (Map/JSON):

{
  // Envelope metadata (unchanged from InstantMessage)
  "sender"    : "moki@xxx",  // Sender's unique ID
  "receiver"  : "hulk@yyy",  // Receiver's unique ID
  "time"      : 123.45,      // Message timestamp (Unix timestamp in seconds)

  // Encrypted content data and keys
  "data"      : "...",       // base64_encode( symmetric_encrypt(content))
  "keys"      : {
    "{ReceiverID}" : "...",  // base64_encode(asymmetric_encrypt(pwd))
    "digest"       : "..."   // hash(pwd.data)
  }
}
Implemented types
Implementers

Properties

data → TransportableData
Encrypted message content (Base64-encoded).
no setter
encryptedKeys → Map?
Map of encrypted symmetric keys (recipient ID → encrypted key string).
no setter
entries → Iterable<MapEntry<String, dynamic>>
The map entries of this Map.
no setterinherited
envelope → Envelope
Complete message envelope containing routing metadata.
no setterinherited
group → ID?
Returns the group ID for group messages (content.group or envelope.group).
no setterinherited
hashCode → int
The hash code for this object.
no setterinherited
isEmpty → bool
Whether there is no key/value pair in the map.
no setterinherited
isNotEmpty → bool
Whether there is at least one key/value pair in the map.
no setterinherited
keys → Iterable<String>
The keys of this Map.
no setterinherited
length → int
The number of key/value pairs in the map.
no setterinherited
receiver → ID
Returns the message receiver ID (envelope.receiver).
no setterinherited
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
sender → ID
Returns the message sender ID (envelope.sender).
no setterinherited
time → DateTime?
Returns the message timestamp (content.time or envelope.time).
no setterinherited
type → String?
Returns the message type (content.type or envelope.type).
no setterinherited
values → Iterable
The values of this Map.
no setterinherited

Methods

addAll(Map<String, dynamic> other) → void
Adds all key/value pairs of other to this map.
inherited
addEntries(Iterable<MapEntry<String, dynamic>> newEntries) → void
Adds all key/value pairs of newEntries to this map.
inherited
cast<RK, RV>() → Map<RK, RV>
Provides a view of this map as having RK keys and RV instances, if necessary.
inherited
clear() → void
Removes all entries from the map.
inherited
containsKey(Object? key) → bool
Whether this map contains the given key.
inherited
containsValue(Object? value) → bool
Whether this map contains the given value.
inherited
copyMap([bool deepCopy = false]) → Map<String, dynamic>
Copy inner map.
inherited
forEach(void action(String key, dynamic value)) → void
Applies action to each key/value pair of the map.
inherited
getBool(String key, [bool? defaultValue]) → bool?
inherited
getDateTime(String key, [DateTime? defaultValue]) → DateTime?
inherited
getDouble(String key, [double? defaultValue]) → double?
inherited
getInt(String key, [int? defaultValue]) → int?
inherited
getString(String key, [String? defaultValue]) → String?
Get string value for key, if value is None, return the default value.
inherited
map<K2, V2>(MapEntry<K2, V2> convert(String key, dynamic value)) → Map<K2, V2>
Returns a new map where all entries of this map are transformed by the given convert function.
inherited
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
putIfAbsent(String key, dynamic ifAbsent()) → dynamic
Look up the value of key, or add a new entry if it isn't there.
inherited
remove(Object? key) → dynamic
Removes key and its associated value, if present, from the map.
inherited
removeWhere(bool test(String key, dynamic value)) → void
Removes all entries of this map that satisfy the given test.
inherited
setDateTime(String key, DateTime? time) → void
inherited
setMap(String key, Mapper? mapper) → void
inherited
setString(String key, Stringer? stringer) → void
inherited
toMap() → MutableMapping
Get inner map.
inherited
toString() → String
A string representation of this object.
inherited
update(String key, dynamic update(dynamic value), {dynamic ifAbsent()?}) → dynamic
Updates the value for the provided key.
inherited
updateAll(dynamic update(String key, dynamic value)) → void
Updates all values.
inherited

Operators

operator ==(Object other) → bool
The equality operator.
inherited
operator [](Object? key) → dynamic
The value for the given key, or null if key is not in the map.
inherited
operator []=(String key, dynamic value) → void
Associates the key with the given value.
inherited

Static Methods

create(InstantMessage iMsg, Uint8List ciphertext, Map<ID, EncryptedBundle>? keyBundles) → SecureMessage
Create a SecureMessage from an instant message, adding 'data' and 'keys'.
getFactory() → SecureMessageFactory?
Get the secure message factory.
parse(Object? msg) → SecureMessage?
Parse a raw object into a SecureMessage instance.
setFactory(SecureMessageFactory factory) → void
Register the secure message factory.