--- allOf: - $ref: core-event-schema/state_event.yaml description: Defines how messages sent in this room should be encrypted. properties: content: properties: algorithm: type: string description: |- The encryption algorithm to be used to encrypt messages sent in this room. For example, ``m.megolm.v1.aes-sha2``. required: - algorithm type: object state_key: description: A zero-length string. pattern: '^$' type: string type: enum: - m.room.encryption type: string type: object