41 lines
1.9 KiB
Dart
41 lines
1.9 KiB
Dart
abstract class OmemoError {}
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/// Triggered during X3DH if the signature if the SPK does verify to the actual SPK.
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class InvalidKeyExchangeSignatureError extends OmemoError {}
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/// Triggered by the Double Ratchet if the computed HMAC does not match the attached HMAC.
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class InvalidMessageHMACError extends OmemoError {}
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/// Triggered by the Double Ratchet if skipping messages would cause skipping more than
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/// MAXSKIP messages
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class SkippingTooManyKeysError extends OmemoError {}
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/// Triggered by the Session Manager if the message key is not encrypted for the device.
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class NotEncryptedForDeviceError extends OmemoError {}
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/// Triggered by the Session Manager when there is no key for decrypting the message.
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class NoDecryptionKeyException extends OmemoError implements Exception {
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String errMsg() => 'No key available for decrypting the message';
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}
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/// Triggered by the Session Manager when the identifier of the used Signed Prekey
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/// is neither the current SPK's identifier nor the old one's.
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class UnknownSignedPrekeyError extends OmemoError {}
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/// Triggered by the Session Manager when the received Key Exchange message does not meet
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/// the requirement that a key exchange, given that the ratchet already exists, must be
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/// sent after its creation.
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class InvalidKeyExchangeException extends OmemoError implements Exception {
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String errMsg() => 'The key exchange was sent before the last kex finished';
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}
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/// Triggered by the OmemoManager when we could not encrypt a message as we have
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/// no key material available. That happens, for example, when we want to create a
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/// ratchet session with a JID we had no session with but fetching the device bundle
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/// failed.
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class NoKeyMaterialAvailableError extends OmemoError {}
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/// A non-key-exchange message was received that was encrypted for our device, but we have no ratchet with
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/// the device that sent the message.
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class NoSessionWithDeviceError extends OmemoError {}
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