IBM Lotus Notes uses the Public key and private key to encrypt or decrypt the data and also for the validation of digital signatures. Both public and private key are related to each other and unique for User ID. This public key gets stored in the Notes Certificate and the Certificate is stored in User ID and in the Lotus Domino Directory. But to keep the secret more confidentially private key is stored in User ID file only.
A user can encrypt the data which they send to other by using the public key which is located in the Certificate of Domino Directory. And when other user received that encrypted data they use the private key which is stored in user ID file to decrypt the data.
IBM Notes Public and private keys is attached to User ID whenever it is created automatically. And add Internet keys during the registration of Domino administrator otherwise it can be requested at later.
As you know users public key can be accessed by anyone whoever sends you the encrypted mail and the one who authenticates you.
The emails which the user receives are strongly encrypted by using Lotus Notes public key and can be decrypted by using their own private key. This emails can also be digitally signed with users private key and this digital signature gets verified using the public key. Anything which gets encrypted by using public key is needed to be decrypted with a private key and vice versa. As we know users private key is kept secret means that public can be accessed by anyone but private key cannot.
To copy the public key from Lotus Notes ID file, go through the following steps from Admin Client:
For the user to mail the administrator a copy of their public key go to the following actions: File → Security → User Security → Your Identity → Your Certificates → Other Actions → Mail/Copy Certificate(Public Key) → Mail Certificate → To(address) → Send
Request Public key using Authentication Protocol
You can also request for a new Public key using an email:
When does this error occur?
When renaming a roaming user, the updated ID file gets attached with the Personal Address Book. And when the user log in from different workstation after authentication with server takes place, then replication happens and local ID is updated. This error occurs when the field “Compare Notes Public Keys against those stored in Directory” is set to yes on Server document’s Security tab.
Set the field “Compare Notes public keys against those stored in Directory” to No, or can copy the updated ID to other additional workstation.
As we know Lotus Notes is known for its high-security features. It has security keys Public and private keys. In this article, we discussed the keys of Lotus Notes and how it can be used for data encryption and decryption. We conclude here that Lotus Notes public and private keys play an important role in making this application more secure.