Journal ArticleDOI
A taxonomy for key escrow encryption systems
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TLDR
A taxonomy for key escrow encryption systems is presented, providing a structure for describing and categorizing the escrow mechanisms of complete systems as well as various design options.Abstract:
decrypt ciphertext with the help of information supplied by one or more trusted parties holding special data recovery keys. The data recovery keys are not normally the same as those used to encrypt and decrypt the data, but rather provide a means of determining the data encryption/decryption keys. The term key escrow is used to refer to the safeguarding of these data recovery keys. Other terms used include key archive, key backup, and data recovery system. This article presents a taxonomy for key escrow encryption systems, providing a structure for describing and categorizing the escrow mechanisms of complete systems as well as various design options. Table 1 applies the taxonomy to several key escrow products or proposals. The sidebar, “Glossary and Sources,” identifies key terms, commercial products, and proposed systems.read more
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