Netsso's encryption algorithm is the widely used Advanced Encryption Standard 256 algorithm (AES with key length 256 bits). All encryption and decryption in Netsso is on your local machine and never on the Netsso server. Generally, individual items- documents or links - are encrypted by your option (exercised as a click), using highly complex random keys of c. 40 characters length, and then these keys are themselves encrypted by your exclusive Master Password (which is also used to give you access to Netsso as well as for encryption).
While Netsso is essentially personal and private, you can share links and documents, encrypted or not, freely with other Netsso members (or email to non-members). Sharing is secured by the use of "sharing keys" (see later under Bookmarking), which are generated in seconds, one time only for each member, providing him a "public" key, available to all other members and a "private" key available only to himself, stored in his Netsso database, encrypted by his Master Password.
The public key is used to encrypt data being sent to him and his private key can decrypt this data. Documents stored online are sent via the online storage services sharing system and the keys to decrypt them are securely transferred between members' Netsso databases.
Encrypted sharing can also operate among groups of members together, when they form Netsso Groups.
Encryption is more fully explained in this document.