sequence! { procedure, context,
    // ACL Connection Established
    Lower Tester -> IUT: IoCapabilityReq {
        transaction_id: 0,
        io_capabilities: 0x02,
        oob_authentication_data: 0x00,
        authentication_requirement: 0x01,
    }
    IUT -> Upper Tester: IoCapabilityResponse {
        bd_addr: context.peer_address(),
        io_capability: IoCapability::KeyboardOnly,
        oob_data_present: OobDataPresent::NotPresent,
        authentication_requirements: AuthenticationRequirements::NoBondingMitmProtection,
    }
    IUT -> Upper Tester: IoCapabilityRequest {
        bd_addr: context.peer_address(),
    }
    Upper Tester -> IUT: IoCapabilityRequestReply {
        bd_addr: context.peer_address(),
        io_capability: IoCapability::DisplayOnly,
        oob_present: OobDataPresent::NotPresent,
        authentication_requirements: AuthenticationRequirements::NoBondingMitmProtection,
    }
    IUT -> Upper Tester: IoCapabilityRequestReplyComplete {
        num_hci_command_packets: 1,
        status: ErrorCode::Success,
        bd_addr: context.peer_address(),
    }
    IUT -> Lower Tester: IoCapabilityRes {
        transaction_id: 0,
        io_capabilities: 0x00,
        oob_authentication_data: 0x00,
        authentication_requirement: 0x01,
    }
    // Public Key Exchange
    Lower Tester -> IUT: EncapsulatedHeader {
        transaction_id: 0,
        major_type: 1,
        minor_type: 1,
        payload_length: 48,
    }
    IUT -> Lower Tester: Accepted {
        transaction_id: 0,
        accepted_opcode: Opcode::EncapsulatedHeader,
    }
    repeat 3 times with (part in peer_p192_public_key()) {
        Lower Tester -> IUT: EncapsulatedPayload {
            transaction_id: 0,
            data: part,
        }
        IUT -> Lower Tester: Accepted {
            transaction_id: 0,
            accepted_opcode: Opcode::EncapsulatedPayload,
        }
    }
    IUT -> Lower Tester: EncapsulatedHeader {
        transaction_id: 0,
        major_type: 1,
        minor_type: 1,
        payload_length: 48,
    }
    Lower Tester -> IUT: Accepted {
        transaction_id: 0,
        accepted_opcode: Opcode::EncapsulatedHeader,
    }
    repeat 3 times with (part in local_p192_public_key(&context)) {
        IUT -> Lower Tester: EncapsulatedPayload {
            transaction_id: 0,
            data: part,
        }
        Lower Tester -> IUT: Accepted {
            transaction_id: 0,
            accepted_opcode: Opcode::EncapsulatedPayload,
        }
    }
    // Authentication Stage 1: Passkey Entry Protocol
    IUT -> Upper Tester: UserPasskeyNotification { bd_addr: context.peer_address(), passkey: 0 }
    Lower Tester -> IUT: SimplePairingConfirm {
        transaction_id: 0,
        commitment_value: [0; 16],
    }
    IUT -> Lower Tester: SimplePairingConfirm {
        transaction_id: 0,
        commitment_value: [0; 16],
    }
    Lower Tester -> IUT: SimplePairingNumber {
        transaction_id: 0,
        nonce: [0; 16],
    }
    IUT -> Lower Tester: NotAccepted {
        transaction_id: 0,
        not_accepted_opcode: Opcode::SimplePairingNumber,
        error_code: ErrorCode::AuthenticationFailure.into(),
    }
    IUT -> Upper Tester: SimplePairingComplete {
        status: ErrorCode::AuthenticationFailure,
        bd_addr: context.peer_address(),
    }
}