2.0.0
As part of the Card Layer, the Calypso Crypto Legacy SAM API provides the high-level functionality used to select a Calypso legacy SAM and run transactions with it. Coupled with the Calypso Card API, it also performs the cryptographic computations that a Calypso card transaction secured by symmetric keys requires.
The complete, versioned reference — types, operations, behaviour, diagrams and constraints — is maintained in the Calypso Crypto Legacy SAM API specification. This page is only a short overview.
What it provides
SAM image — a successful selection yields a
LegacySam, whose key parameters, counters and ceilings can be read, with access to the raw data where relevant.Prepare then process — as for cards, commands are grouped and then processed, which limits the exchanges with the SAM reader.
Transaction managers by capability — reading, writing, secured writing, and the asynchronous creation and execution of a transaction for a remote SAM.
Crypto extension — the same module provides the Calypso card transaction with its symmetric cryptographic primitives, card and SAM commands being interleaved within a single transaction.