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//! Types for the *m.key.verification.accept* event.

use ruma_events_macros::ruma_event;

use super::{
    HashAlgorithm, KeyAgreementProtocol, MessageAuthenticationCode, ShortAuthenticationString,
    VerificationMethod,
};

ruma_event! {
    /// Accepts a previously sent *m.key.verification.start* messge.
    ///
    /// Typically sent as a to-device event.
    AcceptEvent {
        kind: Event,
        event_type: "m.key.verification.accept",
        content: {
            /// An opaque identifier for the verification process.
            ///
            /// Must be the same as the one used for the *m.key.verification.start* message.
            pub transaction_id: String,

            /// The verification method to use.
            ///
            /// Must be `m.sas.v1`.
            pub method: VerificationMethod,

            /// The key agreement protocol the device is choosing to use, out of the options in the
            /// *m.key.verification.start* message.
            pub key_agreement_protocol: KeyAgreementProtocol,

            /// The hash method the device is choosing to use, out of the options in the
            /// *m.key.verification.start* message.
            pub hash: HashAlgorithm,

            /// The message authentication code the device is choosing to use, out of the options in the
            /// *m.key.verification.start* message.
            pub message_authentication_code: MessageAuthenticationCode,

            /// The SAS methods both devices involved in the verification process understand.
            ///
            /// Must be a subset of the options in the *m.key.verification.start* message.
            pub short_authentication_string: Vec<ShortAuthenticationString>,

            /// The hash (encoded as unpadded base64) of the concatenation of the device's ephemeral public
            /// key (encoded as unpadded base64) and the canonical JSON representation of the
            /// *m.key.verification.start* message.
            pub commitment: String,
        },
    }
}