omemo_dart/lib/src/errors.dart

27 lines
1.2 KiB
Dart

/// Triggered during X3DH if the signature if the SPK does verify to the actual SPK.
class InvalidSignatureException implements Exception {
String errMsg() => 'The signature of the SPK does not match the provided signature';
}
/// Triggered by the Double Ratchet if the computed HMAC does not match the attached HMAC.
/// Triggered by the Session Manager if the computed HMAC does not match the attached HMAC.
class InvalidMessageHMACException implements Exception {
String errMsg() => 'The computed HMAC does not match the provided HMAC';
}
/// Triggered by the Double Ratchet if skipping messages would cause skipping more than
/// MAXSKIP messages
class SkippingTooManyMessagesException implements Exception {
String errMsg() => 'Skipping messages would cause a skip bigger than MAXSKIP';
}
/// Triggered by the Session Manager if the message key is not encrypted for the device.
class NotEncryptedForDeviceException implements Exception {
String errMsg() => 'Not encrypted for this device';
}
/// Triggered by the Session Manager when there is no key for decrypting the message.
class NoDecryptionKeyException implements Exception {
String errMsg() => 'No key available for decrypting the message';
}