Tspi_DAA_VerifySignature(3)
NAME
Tspi_DAA_VerifySignature - creates a challenge for the TCG platform
SYNOPSIS
#include <tss/tss_typedef.h> #include <tss/tss_structs.h> #include <tss/tspi.h> TSPICALL Tspi_DAA_VerifySignature( TSS_HDAA hDAA, TSS_DAA_SIGNATURE daaSignature, TSS_HKEY hPubKeyIssuer, TSS_DAA_SIGN_DATA signData, UINT32 attributesLength, BYTE** attributes, UINT32 nonceVerifierLength, BYTE* nonceVerifier, UINT32 baseNameLength, BYTE* baseName, TSS_BOOL* isCorrect );
DESCRIPTION
Tspi_DAA_VerifySignature is part of the DAA Verifier component. It's
the last function out of 2 in order to verify a DAA Credential of a TCG
platform. It verifies the DAA Credential and detects public rogue TPMs.
This is an optional function and does not require a TPM or a TCS.
PARAMETERS
- hDAA
- The hDAA parameter is used to specify the handle of the DAA object.
- daaSignature
- The daaSignature parameter is the DAA signature contains proof of ownership of the DAA Credential, as well as a signature on either an AIK or a message.
- hPubKeyIssuer
- The hPubKeyIssuer parameter is the handle of the DAA public key of the DAA Issuer of the credential.
- signData
- The signData parameter defines what data is signed (AIK or message).
- attributesLength
- The attributesLength parameter is the Length of attributes array that is determined by the DAA Issuer public key (lh+li). The length of a single attribute is lf/8.
- attributes
- The attributes parameter is the array of attributes which the DAA Credential owner reveals.
- nonceVerifierLength
- The nonceVerifierLength parameter is the length of nonceVerifier (20 bytes).
- nonceVerifier
- The nonceVerifier parameter is the nonce that was computed in the previous function (Tspi_VerifyInit).
- baseNameLength
- The baseNameLength parameter the length of the baseName.
- baseName
- The baseName parameter is the base name that was chosen for the DAA Signature.
- isCorrect
- The isCorrect parameter denotes if the verification of the DAA Signature was successful.
RETURN CODES
Tspi_DAA_VerifySignature returns TSS_SUCCESS on success, otherwise one
of the following values is returned:
TSS_E_BAD_PARAMETER
- TSS_E_INTERNAL_ERROR
- An internal SW error has been detected.
- CONFORMING TO
- Tspi_DAA_VerifySignature conforms to the Trusted Computing Group Software Specification version 1.2