Abstract: A memory unit is disclosed comprising a security driver application providing an interface, a storage arrangement and a driver application for activation when connected to a memory accessing arrangement. The driver application is configured, when accessed, to authenticate a user using a password whereby the interface is configured to secure and/or unsecure data transactions to and from the storage arrangement.

Abstract: To provide a secure, effective but simple message handling, a method is provided for transmitting an electrical message, from a first user having a first terminal to a second user having a second terminal. The method comprises the steps of: transmitting said email in an encrypted form by said first terminal, said encrypted e-mail being encrypted by means of a key generated by a first key generator using a seed, providing once said second user with said seed for generating a key with a second key generator provided in said second terminal, providing to and storing said seed in said second terminal, using said seed by said second terminal for generating a key each time an encrypted email from said first user to said second user is received, synchronizing a counting value in each terminal; and generating said key on the basis of said seed and a counting value in each terminal, independently of other terminal.

Abstract: To provide a secure, effective but simple message handling, a method is provided for transmitting an electrical message, from a first user having a first terminal to a second user having a second terminal. The method comprises the steps of: transmitting said email in an encrypted form by said first terminal, said encrypted e-mail being encrypted by means of a key generated by a first key generator using a seed, providing once said second user with said seed for generating a key with a second key generator provided in said second terminal, providing to and storing said seed in said second terminal, using said seed by said second terminal for generating a key each time an encrypted email from said first user to said second user is received, synchronising a counting value in each terminal; and generating said key on the basis of said seed and a counting value in each terminal, independently of other terminal.

Abstract: A network based system having a central server, at least one buyer computer and one merchant computer belonging to a reseller entity, at least one computer belonging to a reseller contact, the server receives information and saves information about the buyer, reseller and entities having permission to assign from agent entity to reseller entity reseller contact, the buyer computer programmed to allow purchasing product from merchant computer, merchant computer programmed to send information about the purchase from the buyer computer to the central server and financial transaction from the buyer to the reseller. Upon reception of a first transaction from the buyer to the reseller, the central server is programmed to allow transactions based on the first transaction to the reseller contact, and the server is arranged to store information about transactions and buyer, with respect to stored permissions, available to the reseller and the reseller contact on the server.

Abstract: To provide a secure, effective but simple message handling, a method is provided for transmitting an electrical message, from a first user having a first terminal to a second user having a second terminal. The method comprises the steps of: transmitting said email in an encrypted form by said first terminal, said encrypted e-mail being encrypted by means of a key generated by a first key generator using a seed, providing once said second user with said seed for generating a key with a second key generator provided in said second terminal, providing to and storing said seed in said second terminal, using said seed by said second terminal for generating a key each time an encrypted email from said first user to said second user is received, synchronising a counting value in each terminal; and generating said key on the basis of said seed and a counting value in each terminal, independently of other terminal.