InternalCryptLib.h File Reference

#include <Library/BaseLib.h>
#include <Library/BaseMemoryLib.h>
#include <Library/MemoryAllocationLib.h>
#include <Library/DebugLib.h>
#include <Library/BaseCryptLib.h>
#include <stdio.h>
#include <mbedtls/mbedtls_config.h>

Go to the source code of this file.

Functions
INT32	MbedtlsRand (VOID *RngState, UINT8 *Output, UINTN Len)
BOOLEAN	WrapPkcs7Data (IN CONST UINT8 *P7Data, IN UINTN P7Length, OUT BOOLEAN *WrapFlag, OUT UINT8 **WrapData, OUT UINTN *WrapDataSize)

Detailed Description

Internal include file for BaseCryptLib.

Copyright (c) 2023, Intel Corporation. All rights reserved.
SPDX-License-Identifier: BSD-2-Clause-Patent

Definition in file InternalCryptLib.h.

Function Documentation

MbedtlsRand()

INT32 MbedtlsRand	(	VOID *	RngState,
		UINT8 *	Output,
		UINTN	Len
	)

The MbedTLS function f_rng, which MbedtlsRand implements.

Parameters

[in]	RngState	Not used, just for compatibility with mbedtls.
[out]	Output	Pointer to buffer to receive random value.
[in]	Len	Size of random bytes to generate.

Return values

0	Pseudorandom byte stream generated successfully.
Non-0	Pseudorandom number generator fails to generate due to lack of entropy.

Definition at line 103 of file CryptRand.c.

WrapPkcs7Data()

BOOLEAN WrapPkcs7Data	(	IN CONST UINT8 *	P7Data,
		IN UINTN	P7Length,
		OUT BOOLEAN *	WrapFlag,
		OUT UINT8 **	WrapData,
		OUT UINTN *	WrapDataSize
	)

Check input P7Data is a wrapped ContentInfo structure or not. If not construct a new structure to wrap P7Data.

Caution: This function may receive untrusted input. UEFI Authenticated Variable is external input, so this function will do basic check for PKCS#7 data structure.

Parameters

[in]	P7Data	Pointer to the PKCS#7 message to verify.
[in]	P7Length	Length of the PKCS#7 message in bytes.
[out]	WrapFlag	If TRUE P7Data is a ContentInfo structure, otherwise return FALSE.
[out]	WrapData	If return status of this function is TRUE: 1) when WrapFlag is TRUE, pointer to P7Data. 2) when WrapFlag is FALSE, pointer to a new ContentInfo structure. It's caller's responsibility to free this buffer.
[out]	WrapDataSize	Length of ContentInfo structure in bytes.

Return values

TRUE	The operation is finished successfully.
FALSE	The operation is failed due to lack of resources.

Definition at line 51 of file CryptPkcs7VerifyCommon.c.