| 摘要 |
The present invention relates to a method for encrypting digital information using communication devices, which have an interface for a replaceable or writable storage medium, whose content may be read out and duplicated, having a storage medium which is connected to the interface, a supply of symbols for encryption being stored on the digital storage medium, which may be read out on the basis of an address, having an encryption unit which employs the supply of symbols for encrypting and/or decrypting the digital data stream of the communication device on the basis of at least one address.
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