The private key is what grants a cryptocurrency user ownership of funds on a given address. The Sendbit wallet automatically generates and stores private keys for you. You can always get your private keys when you backup your wallet.
When you send from a Sendbit wallet, the software signs the transaction with your private key (without actually disclosing it), which indicates to the entire network that you have the authority to transfer the funds to the address you’re sending from. Not only that, but we also allow our users to backup and download their entire wallet including private keys, change addresses, and all used addresses.
These are the steps taken to create, sign, and broadcast a transaction to the crypto network via Sendbit wallet.