EC2 > Structures > Phase1EncryptionAlgorithmsRequestListValue Phase1EncryptionAlgorithmsRequestListValue¶ Structure Class¶ Phase1EncryptionAlgorithmsRequestListValue dataclass ¶ Bases: _SerdeShape Specifies the encryption algorithm for the VPN tunnel for phase 1 IKE negotiations. Attributes¶ value class-attribute instance-attribute ¶ value: str | None = ... The value for the encryption algorithm.