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Genkey Netherlands B.v.

Dominic Gavan Duffy

Aled Wynne Jones

Carl Christopher Goodwin

Dominic Frank Julian Binks

Generating a cryptographic key, for example using a received external key. A system to generate a cryptographic key may include a first data store which may store an authorization key. A system may include a second data store which may store a secure key and/or a public key. A system may include an access controller, which may allow access to a secure key, for example to an access request which may be accompanied by a digital signature. A system may include a key generator, which may generate a private key, for example using a received external key, a stored authorization key and/or a mapping function. A system may include an access request signal generator which may generate a digital signature and/or which may transmit an access request, for example including a generated digital signature, to an access controller to retrieve a secure key.

Data processing apparatus and method

There is a described a method of certifying compliance with a designated process defined by a plurality of rules which are specified in a public template, wherein at least one rule associated with a process includes a certification requirement which requires compliance with that rule to be certified by a rule certifying authority. A processing apparatus operating in a secure environment receives rule compliance data and checks the received rule compliance data to verify that any certification requirement has been satisfied. If the processing apparatus confirms that all the rules specified in the public template are satisfied, then the processing apparatus issues a process compliance certificate which is digitally signed by the process certifying authority.

There is decribed an apparatus for generating a number from data originating from an analogue source, the apparatus comprising means for performing a set of the data and then processing, in accordance with stored processing instructions predetermined by a training process, the data to generate the number. During the training process, the sensitivity of the value of the generated number to variation in each of the measurement values is analyzed, and the process instructions are generated so that the processing of individual measurement values is modified to reduce this sensitivity. In this way, the repeatability of the generated number is improved.

There is described an authentication system in which during an enrolment process a distinctive characteristic of a subject being enrolled is measured to generate a reference number representative of the subject. Authentication data is then generated using the reference number, and the authentication data is stored for use in a subsequent verification process. During verification, the representative characteristic of the subject being verified is re-measured to generate a test number representative of the subject being verified and the authentication data during enrolment is retrieved. The authentication system then checks for equality between the test number and the reference number using the retrieved authentication data. If the test number and the reference number are equal, then the authenticity of the subject is verified, otherwise the authenticity is denied.

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Cambridgeshire, United Kingdom

Dominic Gavan Duffy