AAL2GenProcMessageInformationCmd
  • 22 Jan 2025
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AAL2GenProcMessageInformationCmd

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Résumé de l’article

Function Prototype

aat_int32 AAL2GenProcMessageInformationCmd(
                                        aat_byte       *Cmd,
                                        aat_int32      *CmdSize,
                                        aat_ascii      *PKBlob,
                                        TKernelParms   *CallParms,
                                        aat_ascii      *aStorageKeyNameIn,
                                        aat_ascii      *aIVIn,
                                        aat_ascii      *InformationMessage);

Description

This function creates a command that directs the HSM to process an information message using the given data, and to return a result in the form of a reply.

The information message processing is only applicable to hardware and software Digipass compliant with the Secure Channel protocol, and software Digipass compliant with the Secure Channel protocol and able to generate Secure Channel information messages.

The information message processing on the HSM is identical to the functionality available with the Authentication Suite Server SDK Authentication Suite Server SDKSoftware Digipass Secure Channel Service. For information on the associated functions, refer to the Authentication Suite Server SDKC-C++ Programmer's Guide.

This function serializes an important amount of data. The Cmd buffer must be allocated with a sufficient size. For more information about the allocation of the Cmd and InReply buffers, refer to Cmd and InReply buffers allocation

This function must be used with the post-HSM API AAL2ProcProcMessageInformationRpl.

Parameters

  Table: Parameters (AAL2GenProcMessageInformationCmd)
TypeNameUseDescription
aat_byte *CmdO

Up to 1388 bytes that serialize the INFORMATION MESSAGE PROCESSING command type and the input data to information message processing function on the HSM:

  • Command type - 2 bytes
  • PayloadKey BLOB - 72 characters
  • Runtime parameters - 80 bytes
  • StorageKeyName - up to 128 characters
  • InitialVector - 8 bytes
  • Information Message - up to 1070 characters
  • Host time - 4 bytes

Plus 24 bytes for Authentication Suite Server SDK internal use.

aat_int32 *CmdSizeI/O

On entry, this parameter contains the size of the Cmd buffer.On exit, this parameter contains the length of the Cmd message.

aat_ascii *PKBlobI

Contains the payload key BLOB that has been generated for the Digipass instances activated with a particular serial number license (in case of the multi-device licensing model) or that has been imported for the Digipass authenticator with a particular serial number license (in case of single-device licensing model). The payload key BLOB parameter is mandatory only if the information message is protected (encrypted and/or signed); can be NULL or empty if the information message is not protected (neither encrypted nor signed).

TKernelParms *

CallParmsI

Structure of runtime parameters to use during this function call.

aat_ascii *aStorageKey NameIn I

String of up to 128+1 characters, left-justified, null-terminated, or right-padded with spaces. This is the label of the HSM storage key used to encrypt the sensitive Digipass application BLOB data.

aat_ascii *aIVInI

String of 16 hexadecimal characters, left-justified, null-terminated, or right-padded with spaces. This is the initial vector used to encrypt the sensitive authenticator application BLOB data.

aat_ascii *InformationMessageI

Hexadecimal character string containing the information message that has been generated by the Digipass client device.The string length must be a multiple of 2 with a maximum length of 1070 characters.

Return codes

  Table: Return codes (AAL2GenProcMessageInformationCmd)
CodeMeaningCodeMeaning
0Success1025Buffer too small
149

Invalid initial vector length

1018Invalid TLV item pointer
412

Invalid checksum (software)

1119

Unsupported payload key BLOB

413

Invalid Base64 format

1303Invalid request message pointer
590Invalid command pointer1341Message is not hexadecimal
706Invalid data buffer pointer1343Invalid information message length
1000

Function does not support EMV-CAP

1356

Invalid information message pointer


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