Intel(R) EPID 1.1 specific pairing

Intel(R) EPID 1.1 pairing operations. More...

Typedefs
typedef struct Epid11PairingState	Epid11PairingState
	A pairing.

Functions
EpidStatus	NewEpid11PairingState (EcGroup const *ga, EcGroup const *gb, FiniteField const *ff, Epid11PairingState **ps)
	Constructs a new Tate pairing state. More...
void	DeleteEpid11PairingState (Epid11PairingState **ps)
	Frees a previously allocated by Epid11PairingState. More...
EpidStatus	Epid11Pairing (Epid11PairingState *ps, EcPoint const *a, EcPoint const *b, FfElement *d)
	Computes a Tate Pairing for two parameters. More...

Detailed Description

Intel(R) EPID 1.1 pairing operations.

Provides APIs for defining and using a pairing relationship between two Elliptic curve groups.

These pairing operations are intended to support Intel(R) EPID 1.1 verification.

See also

Intel(R) EPID 1.1 support

Function Documentation

DeleteEpid11PairingState()

void DeleteEpid11PairingState

(

Epid11PairingState **

ps

)

Frees a previously allocated by Epid11PairingState.

Frees memory pointed to by pairing state. Nulls the pointer.

This pairing operation is intended to support Intel(R) EPID 1.1 verification.

Parameters

[in]

ps

The pairing state. Can be NULL.

See also

NewEpid11PairingState

Intel(R) EPID 1.1 support

Epid11Pairing()

EpidStatus Epid11Pairing	(	Epid11PairingState *	ps,
		EcPoint const *	a,
		EcPoint const *	b,
		FfElement *	d
	)

Computes a Tate Pairing for two parameters.

This pairing operation is intended to support Intel(R) EPID 1.1 verification. It frees memory pointed to by an Intel(R) EPID 1.1 pairing state.

Parameters

[in]	ps	The pairing state.
[in]	a	The first value to pair. Must be in ga.
[in]	b	The second value to pair. Must be in gb.
[out]	d	The result of the pairing. Must be in ff.

Returns

EpidStatus

See also

Intel(R) EPID 1.1 support

NewEpid11PairingState()

EpidStatus NewEpid11PairingState	(	EcGroup const *	ga,
		EcGroup const *	gb,
		FiniteField const *	ff,
		Epid11PairingState **	ps
	)

Constructs a new Tate pairing state.

Allocates memory and creates a new pairing state for Tate pairing.

Use DeleteEpid11PairingState() to free memory.

This pairing operation is intended to support Intel(R) EPID 1.1 verification.

Parameters

[in]	ga	The EcGroup from which the first parameter of the pairing will be taken.
[in]	gb	The EcGroup from which the second parameter of the pairing will be taken.
[in]	ff	The result finite field. Must be a Fq12 field.
[out]	ps	Newly constructed pairing state.

Returns

EpidStatus

Attention

It is the responsibility of the caller to ensure that ga, gb, and ff exist for the entire lifetime of the new Epid11PairingState.

See also

DeleteEpid11PairingState

Intel(R) EPID 1.1 support