Package org.eclipse.keypop.calypso.crypto.legacysam.transaction

Interface FreeTransactionManager

All Superinterfaces:

ReadTransactionManager<FreeTransactionManager>, TransactionManager<FreeTransactionManager>

public interface FreeTransactionManager
extends ReadTransactionManager<FreeTransactionManager>

Transaction manager dedicated to operations performed without control SAM.

An instance of this interface can be obtained via the method LegacySamApiFactory.createFreeTransactionManager(CardReader, LegacySam).

Since:

0.1.0

Method Summary

Modifier and Type	Method	Description
java.lang.String	exportTargetSamContextForAsyncTransaction()	Executes the required commands to obtain the security context, which will be used for future asynchronous write operations.
FreeTransactionManager	prepareComputeSignature(SignatureComputationData<?> data)	Schedules the execution of a "Data Cipher" or "PSO Compute Signature" command.
FreeTransactionManager	prepareVerifySignature(SignatureVerificationData<?> data)	Schedules the execution of a "Data Cipher" or "PSO Verify Signature" command.

Methods inherited from interface org.eclipse.keypop.calypso.crypto.legacysam.transaction.ReadTransactionManager

prepareReadAllCountersStatus, prepareReadCounterStatus, prepareReadSystemKeyParameters

Methods inherited from interface org.eclipse.keypop.calypso.crypto.legacysam.transaction.TransactionManager

processCommands

Method Detail

prepareComputeSignature

FreeTransactionManager prepareComputeSignature(SignatureComputationData<?> data)

Schedules the execution of a "Data Cipher" or "PSO Compute Signature" command.

Once the command is processed, the result will be available in the provided input/output BasicSignatureComputationData or TraceableSignatureComputationData objects.

The signature may be used for many purposes, for example:

• To add a signature to data recorded in a contactless card or ticket.
  Remark: to speed up processing, it is recommended to use a constant signing key (which is not diversified before ciphering). Instead, the serial number of the card or ticket should be inserted at the beginning of the data to sign.
• To sign some data reported from a terminal to a central system.
  Remark: in this case, the terminal SAM contains a signing work key diversified with its own serial number, guarantying that the data has indeed been signed by this SAM. The central system SAM uses the master signing key, diversified before signing with the diversifier set previously by "Select Diversifier" command.

Parameters:

data - The input/output data containing the parameters of the command.

Returns:

The current instance.

Throws:

java.lang.IllegalArgumentException - If the input data is inconsistent.

Since:

0.1.0

See Also:

SignatureComputationData, BasicSignatureComputationData, TraceableSignatureComputationData

prepareVerifySignature

FreeTransactionManager prepareVerifySignature(SignatureVerificationData<?> data)

Schedules the execution of a "Data Cipher" or "PSO Verify Signature" command.

Once the command is processed, the result will be available in the provided input/output BasicSignatureVerificationData or TraceableSignatureVerificationData objects.

Parameters:

data - The input/output data containing the parameters of the command.

Returns:

The current instance.

Throws:

java.lang.IllegalArgumentException - If the input data is inconsistent.

SamRevokedException - If the signature has been computed in "SAM traceability" mode and the SAM revocation status check has been requested and the SAM is revoked (for traceable signature only).

Since:

0.1.0

See Also:

SignatureVerificationData, BasicSignatureVerificationData, TraceableSignatureVerificationData

exportTargetSamContextForAsyncTransaction

java.lang.String exportTargetSamContextForAsyncTransaction()

Executes the required commands to obtain the security context, which will be used for future asynchronous write operations.

The exported target SAM context must be provided when creating an AsyncTransactionCreatorManager with the method LegacySamApiFactory.createAsyncTransactionCreatorManager(String, SecuritySetting).

Returns:

A not empty string containing the context.

Since:

0.2.0