DEVICE AND METHOD FOR DECRYPTING DATA

摘要

The invention relates to a device (1) for decrypting data, said device having a number of means (3-5) secured by at least one security device (2). The secured means (3-5) comprise receiving means (3) for receiving calculation data (B) encrypted using a homomorphic encryption function (f) and a decrypting means (4) for decrypting the encrypted calculation data (B) by carrying out the inverse (I) of the homomorphic encryption function (f) on the encrypted calculation data using a private key (k1) assigned to the homomorphic encryption function (f). In this manner, a secured computing environment with a high degree of security is implemented in an inexpensive manner from available standard components. The invention further relates to a method and to a computer program product for decrypting data.