Patent ID: 8726360

Claim:
A telecommunication method having the following steps: establishing a first connection between a first ID token and a first computer system via a second computer system for reading at least one first attribute from the first ID token, generating a first soft token, wherein the first soft token comprises the at least one first attribute and a time specification, and wherein the first soft token is signed by the first computer system, sending the first soft token from the first computer system to a third computer system, wherein the first connection is a connection with end-to-end encryption, wherein the third computer system performs the following steps: receiving the first soft token at a reception time, establishing a second connection over the second computer system to a second ID token for reading at least one second attribute from the second ID token, determining data by using the first and/or the second attributes, said determining performed by either: calculating the data from the first and the second attributes by the third computer system, or accessing a database with the aid of the first and the second attributes and querying the data from the database by the third computer system, writing the data over the second connection for storing the data in the second ID token, wherein the second connection is a connection with end-to-end encryption, and wherein writing the data over the second connection is only performed if the first soft token is valid at the reception time, wherein the validity is checked by using the time specification, wherein the validity is checked by calculating a difference between the reception time and the time specification comprised by the first soft token and comparing the difference with a threshold.