conversion.h File Reference

TPM-SDK data conversion interface. More...

#include <tss2/TPM_Types.h>
#include "epid/common/errors.h"
#include "epid/common/types.h"

Macros
#define	TPM_ALG_SHA256   (TPM_ALG_ID)(0x000B)
	TPM code of SHA 256 algorithm.
#define	TPM_ALG_SHA384   (TPM_ALG_ID)(0x000C)
	TPM code of SHA 384 algorithm.
#define	TPM_ALG_SHA512   (TPM_ALG_ID)(0x000D)
	TPM code of SHA 512 algorithm.
#define	TPM_ALG_NULL   (TPM_ALG_ID)(0x0010)
	TPM code of Null algorithm.

Functions
TPMI_ALG_HASH	EpidtoTpm2HashAlg (HashAlg hash_alg)
	Maps HashAlg to TPM type. More...
HashAlg	Tpm2toEpidHashAlg (TPMI_ALG_HASH tpm_hash_alg)
	Maps TPMI_ALG_HASH to HashAlg. More...
EpidStatus	ReadTpm2FfElement (OctStr256 const *str, TPM2B_ECC_PARAMETER *tpm_data)
	Converts serialized FfElement into TPM type. More...
EpidStatus	WriteTpm2FfElement (TPM2B_ECC_PARAMETER const *tpm_data, OctStr256 *str)
	Converts TPM finite field element types into serialized FfElement. More...
EpidStatus	ReadTpm2EcPoint (G1ElemStr const *p_str, TPM2B_ECC_POINT *tpm_point)
	Converts ECPoint string to TMP ECPoint structure. More...
EpidStatus	WriteTpm2EcPoint (TPM2B_ECC_POINT const *tpm_point, G1ElemStr *p_str)
	Serializes TMP ECPoint to ECPoint string. More...

Detailed Description

TPM-SDK data conversion interface.

Function Documentation

EpidtoTpm2HashAlg()

TPMI_ALG_HASH EpidtoTpm2HashAlg

(

HashAlg

hash_alg

)

Maps HashAlg to TPM type.

Maps Intel(R) EPID SDK HashAlg into TPMI_ALG_HASH.

Parameters

[in]

hash_alg

Code of the hash algorithm

Returns

TPMI_ALG_HASH

ReadTpm2EcPoint()

EpidStatus ReadTpm2EcPoint	(	G1ElemStr const *	p_str,
		TPM2B_ECC_POINT *	tpm_point
	)

Converts ECPoint string to TMP ECPoint structure.

Parameters

[in]	p_str	The serialized EcPoint to convert.
[out]	tpm_point	The TPM EC point representation.

Returns

EpidStatus

ReadTpm2FfElement()

EpidStatus ReadTpm2FfElement	(	OctStr256 const *	str,
		TPM2B_ECC_PARAMETER *	tpm_data
	)

Converts serialized FfElement into TPM type.

Parameters

[in]	str	Serialized Intel(R) EPID SDK FfElement
[out]	tpm_data	tpm type data.

Returns

EpidStatus

Tpm2toEpidHashAlg()

HashAlg Tpm2toEpidHashAlg

(

TPMI_ALG_HASH

tpm_hash_alg

)

Maps TPMI_ALG_HASH to HashAlg.

Maps TPM hash code TPMI_ALG_HASH into HashAlg.

Parameters

[in]

tpm_hash_alg

Code of the hash algorithm in TPM

Returns

HashAlg

WriteTpm2EcPoint()

EpidStatus WriteTpm2EcPoint	(	TPM2B_ECC_POINT const *	tpm_point,
		G1ElemStr *	p_str
	)

Serializes TMP ECPoint to ECPoint string.

Parameters

[in]	tpm_point	The TPM EC point to convert.
[in]	p_str	The target string.

Returns

EpidStatus

WriteTpm2FfElement()

EpidStatus WriteTpm2FfElement	(	TPM2B_ECC_PARAMETER const *	tpm_data,
		OctStr256 *	str
	)

Converts TPM finite field element types into serialized FfElement.

Parameters

[in]	tpm_data	The TPM finite field data, typically TPM2B_DIGEST or TPM2B_ECC_PARAMETER.
[out]	str	The target buffer.

Returns

EpidStatus