Cryptographic Security Architecture: Design and Verification by Peter Gutmann

By Peter Gutmann

Provides a unique layout that enables for loads of customization, which many present equipment fail to incorporate; info a versatile, complete layout that may be simply prolonged whilst invaluable; confirmed effects: the flexibility of the layout has been successfully confirmed in implementations starting from microcontrollers to supercomputers

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If the asynchronous processing was initiated successfully, the kernel sets the status of the object to “busy” and enqueues any normal messages sent to it for as long as the object is in the busy state (with the aforementioned protection against excessive numbers of messages building up). 27. In this way, the kernel enforces strict serialisation of all messages sent to an object, guaranteeing a fixed order of execution even for asynchronous operations on an object. 8 Object Reuse 31 inherently thread-safe, the messaging mechanism is also safe when asynchronous processing is taking place.

Data container object internal structure. Keyset objects again follow this architectural style, containing method pointers to functions to initialise a keyset, and get, put, and delete keys from the keyset. By switching method pointers, it is possible to switch the underlying data store between HTTP, LDAP, PGP, PKCS #12, PKCS #15, and relational database key stores while providing an identical interface for all keyset types. 2 Data Formats Since each object represents an abstract security concept, none of them are tied to a particular underlying data format or type.

3 Alternative Routing Strategies The standard means of handling packet-switched messages is to route them individually, which has a fixed per-message overhead and may lead to blocking problems if multiple messages are being routed over a shared channel, in this case the cryptlib kernel. An alternative routing technique, wormhole routing, groups similar messages into a collection of flits, the smallest units into which messages can be decomposed, with the first flit containing routing information and the remaining flits containing data.

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