Authenication stick

1. A communication adapter for authentication of a user, the communication adapter comprising:

a receiving unit comprising a radio link interface for receiving encrypted credentials;

a decryption unit comprising a processor for decrypting the encrypted credentials;

an output unit comprising a keyboard signal interface for outputting the decrypted credentials to a terminal device;

wherein the keyboard signal interface of the output unit can be connected to an interface on the terminal device and wherein the interface on the terminal device is suitable for inputting keyboard signals;

wherein the radio link interface of the receiving unit is configured to receive the encrypted credentials from a mobile input device;

wherein the mobile input device is configured to output the encrypted credentials to the radio link interface of the receiving unit via a radio link;

wherein the processor of the decryption unit is configured to decrypt the encrypted credentials by means of a second password;

wherein the second password is dependent on an application for which the user authenticates himself/herself;

wherein the second password is dependent on the user who wants to authenticate himself/herself; or

wherein the communication adapter being configured to generate the second password in an automated manner.

2. The communication adapter as claimed in claim 1 , wherein the keyboard signal interface of the output unit is configured to output the decrypted credentials in a format of a standard keyboard.

3. The communication adapter as claimed in claim 1 , wherein the decrypted credentials comprise a first password.

4. The communication adapter as claimed in claim 1 , the communication adapter being configured to store the second password within a memory.

5. The communication adapter as claimed in claim 1 , the communication adapter being configured to receive the second password via an additional input unit.

6. A system for authentication of a user on a terminal device, comprising:

a communication adapter for authentication of the user, said communication adapter comprising:

a receiving unit comprising a radio link interface for receiving encrypted credentials;

a decryption unit comprising a processor for decrypting the encrypted credentials;

an output unit comprising a keyboard signal interface for outputting the decrypted credentials to a terminal device;

wherein the keyboard signal interface of the output unit can be connected to an interface on the terminal device and wherein the interface on the terminal device is suitable for inputting keyboard signals;

wherein the radio link interface of the receiving unit is configured to receive the encrypted credentials from a mobile input device;

wherein the mobile input device is configured to output the encrypted credentials to the radio link interface of the receiving unit via a radio link;

the mobile input device configured to store encrypted credentials from a user and to output same to the radio link interface of the receiving unit of the communication adapter; and

the terminal device configured to receive the decrypted credentials from the keyboard signal interface of the output unit;

wherein the processor of the decryption unit is configured to decrypt the encrypted credentials by means of a second password;

wherein the second password is dependent on an application for which the user authenticates himself/herself;

wherein the second password is dependent on the user who wants to authenticate himself/herself; or

wherein the communication adapter being configured to generate the second password in an automated manner.

7. The system as claimed in claim 6 , wherein the mobile input device is configured to generate first passwords or second passwords in an automated manner.

8. A method for authentication of a user, the method comprising:

receiving encrypted credentials from a mobile input device via a radio link;

decrypting the encrypted credentials;

outputting the decrypted credentials to a terminal device via an interface, suited for inputting keyboard signals, on the terminal device;

decrypting the encrypted credentials by means of a second password;

wherein the second password is dependent on an application for which the user authenticates himself/herself;

wherein the second password is dependent on the user who wants to authenticate himself/herself; or

wherein the second password is generated in an automated manner.

9. A non-transitory digital storage medium having a computer program stored thereon to perform the method for authentication of a user, said method comprising:

receiving encrypted credentials from a mobile input device via a radio link;

decrypting the encrypted credentials;

outputting the decrypted credentials to a terminal device via an interface, suited for inputting keyboard signals, on the terminal device,

decrypting the encrypted credentials by means of a second password;

wherein the second password is dependent on an application for which the user authenticates himself/herself;

wherein the second password is dependent on the user who wants to authenticate himself/herself; or

wherein the second password is generated in an automated manner;

when said computer program is run by a computer.