US 12,192,367 B2
Supporting the decryption of encrypted data
Mike Bobinski, Bonn (DE); and Jürgen Pabel, Cologne (DE)
Assigned to Deutsche Post AG, Bonn (DE)
Filed by Mike Bobinski, Bonn (DE); and Jürgen Pabel, Cologne (DE)
Filed on Oct. 30, 2015, as Appl. No. 14/927,582.
Application 14/927,582 is a continuation of application No. PCT/EP2014/065613, filed on Jul. 21, 2014.
Claims priority of application No. 10 2013 108 714.0 (DE), filed on Aug. 12, 2013.
Prior Publication US 2016/0149705 A1, May 26, 2016
Int. Cl. H04L 9/32 (2006.01); H04L 9/08 (2006.01); H04L 9/40 (2022.01)
CPC H04L 9/3228 (2013.01) [H04L 9/0819 (2013.01); H04L 9/0863 (2013.01); H04L 9/321 (2013.01); H04L 63/0838 (2013.01); H04L 2463/062 (2013.01)] 26 Claims
OG exemplary drawing
 
1. A method performed by an apparatus, wherein a first installation is configured to provide a secret key of a user of the apparatus, and wherein a second installation is configured to provide data for the user, the method comprising:
logging on to the second installation with authentication of the user,
receiving encrypted data from the second installation,
creating a one-time password,
encrypting the one-time password by means of a public key of the first installation,
transmitting the encrypted one-time password to the second installation and causing the second installation to retrieve the secret key of the user from the first installation by means of the encrypted one-time password and a key identification allocated to the user in the second installation,
receiving the secret key of the user, which was encrypted by the first installation with the one-time password, from the second installation,
decrypting the secret key of the user by means of the one-time password and
decrypting the encrypted data by means of the secret key of the user.