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TP_CertGroupVerify(3)
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TP_CertGroupVerify, CSSM_TP_CertGroupVerify - Determine if
a certificate is trusted (CDSA)
# include <cdsa/cssm.h>
API: CSSM_RETURN CSSMAPI CSSM_TP_CertGroupVerify
(CSSM_TP_HANDLE TPHandle, CSSM_CL_HANDLE CLHandle,
CSSM_CSP_HANDLE CSPHandle, const CSSM_CERTGROUP *CertGroupToBeVerified,
const CSSM_TP_VERIFY_CONTEXT *VerifyContext,
CSSM_TP_VERIFY_CONTEXT_RESULT_PTR VerifyContextResult)
SPI: CSSM_RETURN CSSMTPI TP_CertGroupVerify
(CSSM_TP_HANDLE TPHandle, CSSM_CL_HANDLE CLHandle,
CSSM_CSP_HANDLE CSPHandle, const CSSM_CERTGROUP *CertGroupToBeVerified,
const CSSM_TP_VERIFY_CONTEXT *VerifyContext,
CSSM_TP_VERIFY_CONTEXT_RESULT_PTR VerifyContextResult)
Common Security Services Manager library (libcssm.so)
The handle that describes the add-in trust policy module
used to perform this function. The handle that describes
the add-in certificate library module that can be used to
manipulate the subject certificate and anchor certificates.
If no certificate library module is specified, the
TP module uses an assumed CL module, if required. The
handle that describes the add-in cryptographic service
provider module that can be used to perform the cryptographic
operations required to carry out the verification.
If no CSP handle is specified, the TP module allocates a
suitable CSP. A group of one or more certificates to be
verified. The first certificate in the group is the primary
target certificate for verification. Use of the subsequent
certificates during the verification process is
specific to the trust domain. A structure containing credentials,
policy information, and contextual information
to be used in the verification process. All of the input
values in the context are optional except Action. The service
provider can define default values or can attempt to
operate without input for all the other fields of this
input structure. The operation can fail if a necessary
input value is omitted and the service module can not
define an appropriate default value. A pointer to a
structure containing information generated during the verification
process. The information can include:
Evidence .PP (output/optional)
NumberOfEvidences .PP (output/optional)
This function determines whether the certificate is
trusted. The actions performed by this function differ
based on the trust policy domain. The factors include
practices, procedures and policies defined by the certificate
issuer.
Typically certificate verification involves the
verification of multiple certificates. The first certificate
in the group is the target of the verification process.
The other certificates in the group are used in the
verification process to connect the target certificate
with one or more anchors of trust. The supporting certificates
can be contained in the provided certificate
group or can be stored in the data stores specified in the
VerifyContext DBList. This allows the trust policy module
to construct a certificate group and perform verification
in one operation. The data stores specified by DBList can
also contain certificate revocation lists used in the verification
process. It is also possible to provide a data
store of anchor certificates. Typically the points of
Trust are few in number and are embedded in the caller or
in the TPM during software manufacturing or at runtime
The caller can select to be notified incrementally as each
certificate is verified. The CallbackWithVerifiedCert
parameter (in the VerifyContext) can specify a caller
function to be invoked at the end of each certificate verification,
returning the verified certificate for use by
the caller.
Anchor certificates are a list of implicitly trusted certificates.
These include root certificates, cross certified
certificates, and locally defined sources of trust.
These certificates form the basis to determine trust in
the subject certificate.
A policy identifier can specify an additional set of conditions
that must be satisfied by the subject certificate
in order to meet the trust criteria. The name space for
policy identifiers is defined by the application domains
to which the policy applies. This is outside of CSSM. A
list of policy identifiers can be specified and the stopping
condition for evaluating that set of conditions.
The evaluation and verification process can produce a list
of evidence. The evidence can be selected values from the
certificates examined in the verification process, entire
certificates from the process or other pertinent information
that forms an audit trail of the verification process.
This evidence is returned to the caller after all
steps in the verification process have been completed.
If verification succeeds, the trust policy module may
carry out the action on the specified data or may return
approval for the action requiring the caller to perform
the action. The caller must consult TP module documentation
outside of this specification to determine all module-specific
side effects of this operation.
A CSSM_RETURN value indicating success or specifying a
particular error condition. The value CSSM_OK indicates
success. All other values represent an error condition.
Errors are described in the CDSA technical standard. See
CDSA_intro(3). CSSMERR_TP_INVALID_CL_HANDLE CSSMERR_TP_INVALID_CSP_HANDLE
CSSMERR_TP_INVALID_CERTGROUP_POINTER
CSSMERR_TP_INVALID_CERTGROUP CSSMERR_TP_INVALID_CERTIFICATE
CSSMERR_TP_INVALID_ACTION CSSMERR_TP_INVALID_ACTION_DATA
CSSMERR_TP_VERIFY_ACTION_FAILED
CSSMERR_TP_INVALID_CRLGROUP_POINTER CSSMERR_TP_INVALID_CRLGROUP
CSSMERR_TP_INVALID_CRL_AUTHORITY
CSSMERR_TP_INVALID_CALLERAUTH_CONTEXT_POINTER CSSMERR_TP_INVALID_POLICY_IDENTIFIERS
CSSMERR_TP_INVALID_TIMESTRING
CSSMERR_TP_INVALID_STOP_ON_POLICY
CSSMERR_TP_INVALID_CALLBACK CSSMERR_TP_INVALID_ANCHOR_CERT
CSSMERR_TP_CERTGROUP_INCOMPLETE
CSSMERR_TP_INVALID_DL_HANDLE CSSMERR_TP_INVALID_DB_HANDLE
CSSMERR_TP_INVALID_DB_LIST_POINTER
CSSMERR_TP_INVALID_DB_LIST
CSSMERR_TP_AUTHENTICATION_FAILED CSSMERR_TP_INSUFFICIENT_CREDENTIALS
CSSMERR_TP_NOT_TRUSTED CSSMERR_TP_CERT_REVOKED
CSSMERR_TP_CERT_SUSPENDED CSSMERR_TP_CERT_EXPIRED
CSSMERR_TP_CERT_NOT_VALID_YET CSSMERR_TP_INVALID_CERT_AUTHORITY
CSSMERR_TP_INVALID_SIGNATURE
CSSMERR_TP_INVALID_NAME
Books
Intel CDSA Application Developer's Guide (see
CDSA_intro(3))
Reference Pages [Toc] [Back]
TP_CertGroupVerify(3)
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