Secure mapping and aliasing of private keys used in public key cryptography
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United States of America Patent
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Apr 22, 2003
Grant Date -
N/A
app pub date -
Apr 23, 1999
filing date -
Apr 28, 1998
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A method (200) for assigning a key pair to an entity, such as a certification authority (CA 102), includes the following steps. A key pair is generated (210). It includes a private key and a public key which form a key pair for use in public-key cryptography. The key pair is stored (220) in a cryptographic signing unit (CSU 140). The CSU (140) is then activated (230). A request for a key pair is received (240) from the entity (102). Responsive to the request, the key pair is assigned (250) to the entity (102). In a preferred embodiment, an identifier (312) is assigned to the key pair and preferably is different from identifiers assigned to other key pairs stored in the CSU (140). The identifier (312) is then included in a digital certificate (300) issued to the entity (102).
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