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/** @file
PKCS#7 SignedData Verification Wrapper Implementation which does not provide
real capabilities.
Copyright (c) 2023, Intel Corporation. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
#include "InternalCryptLib.h"
/**
Get the signer's certificates from PKCS#7 signed data as described in "PKCS #7:
Cryptographic Message Syntax Standard". The input signed data could be wrapped
in a ContentInfo structure.
Return FALSE to indicate this interface is not supported.
@param[in] P7Data Pointer to the PKCS#7 message to verify.
@param[in] P7Length Length of the PKCS#7 message in bytes.
@param[out] CertStack Pointer to Signer's certificates retrieved from P7Data.
It's caller's responsibility to free the buffer with
Pkcs7FreeSigners().
This data structure is EFI_CERT_STACK type.
@param[out] StackLength Length of signer's certificates in bytes.
@param[out] TrustedCert Pointer to a trusted certificate from Signer's certificates.
It's caller's responsibility to free the buffer with
Pkcs7FreeSigners().
@param[out] CertLength Length of the trusted certificate in bytes.
@retval FALSE This interface is not supported.
**/
BOOLEAN
EFIAPI
Pkcs7GetSigners (
IN CONST UINT8 *P7Data,
IN UINTN P7Length,
OUT UINT8 **CertStack,
OUT UINTN *StackLength,
OUT UINT8 **TrustedCert,
OUT UINTN *CertLength
)
{
ASSERT (FALSE);
return FALSE;
}
/**
Wrap function to use free() to free allocated memory for certificates.
If the interface is not supported, then ASSERT().
@param[in] Certs Pointer to the certificates to be freed.
**/
VOID
EFIAPI
Pkcs7FreeSigners (
IN UINT8 *Certs
)
{
ASSERT (FALSE);
}
/**
Retrieves all embedded certificates from PKCS#7 signed data as described in "PKCS #7:
Cryptographic Message Syntax Standard", and outputs two certificate lists chained and
unchained to the signer's certificates.
The input signed data could be wrapped in a ContentInfo structure.
@param[in] P7Data Pointer to the PKCS#7 message.
@param[in] P7Length Length of the PKCS#7 message in bytes.
@param[out] SignerChainCerts Pointer to the certificates list chained to signer's
certificate. It's caller's responsibility to free the buffer
with Pkcs7FreeSigners().
This data structure is EFI_CERT_STACK type.
@param[out] ChainLength Length of the chained certificates list buffer in bytes.
@param[out] UnchainCerts Pointer to the unchained certificates lists. It's caller's
responsibility to free the buffer with Pkcs7FreeSigners().
This data structure is EFI_CERT_STACK type.
@param[out] UnchainLength Length of the unchained certificates list buffer in bytes.
@retval TRUE The operation is finished successfully.
@retval FALSE Error occurs during the operation.
**/
BOOLEAN
EFIAPI
Pkcs7GetCertificatesList (
IN CONST UINT8 *P7Data,
IN UINTN P7Length,
OUT UINT8 **SignerChainCerts,
OUT UINTN *ChainLength,
OUT UINT8 **UnchainCerts,
OUT UINTN *UnchainLength
)
{
ASSERT (FALSE);
return FALSE;
}
/**
Verifies the validity of a PKCS#7 signed data as described in "PKCS #7:
Cryptographic Message Syntax Standard". The input signed data could be wrapped
in a ContentInfo structure.
Return FALSE to indicate this interface is not supported.
@param[in] P7Data Pointer to the PKCS#7 message to verify.
@param[in] P7Length Length of the PKCS#7 message in bytes.
@param[in] TrustedCert Pointer to a trusted/root certificate encoded in DER, which
is used for certificate chain verification.
@param[in] CertLength Length of the trusted certificate in bytes.
@param[in] InData Pointer to the content to be verified.
@param[in] DataLength Length of InData in bytes.
@retval FALSE This interface is not supported.
**/
BOOLEAN
EFIAPI
Pkcs7Verify (
IN CONST UINT8 *P7Data,
IN UINTN P7Length,
IN CONST UINT8 *TrustedCert,
IN UINTN CertLength,
IN CONST UINT8 *InData,
IN UINTN DataLength
)
{
ASSERT (FALSE);
return FALSE;
}
/**
Extracts the attached content from a PKCS#7 signed data if existed. The input signed
data could be wrapped in a ContentInfo structure.
Return FALSE to indicate this interface is not supported.
@param[in] P7Data Pointer to the PKCS#7 signed data to process.
@param[in] P7Length Length of the PKCS#7 signed data in bytes.
@param[out] Content Pointer to the extracted content from the PKCS#7 signedData.
It's caller's responsibility to free the buffer with FreePool().
@param[out] ContentSize The size of the extracted content in bytes.
@retval TRUE The P7Data was correctly formatted for processing.
@retval FALSE The P7Data was not correctly formatted for processing.
**/
BOOLEAN
EFIAPI
Pkcs7GetAttachedContent (
IN CONST UINT8 *P7Data,
IN UINTN P7Length,
OUT VOID **Content,
OUT UINTN *ContentSize
)
{
ASSERT (FALSE);
return FALSE;
}
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