elliptic_curve Struct Reference

An elliptic curve. More...

#include <crypto.h>

Data Fields
const char *	name
	Curve name. More...
size_t	pointsize
	Point (and public key) size. More...
size_t	keysize
	Scalar (and private key) size. More...
const void *	base
	Generator base point. More...
const void *	order
	Order of the generator (if prime) More...
int(*	is_infinity )(const void *point)
	Check if this is the point at infinity. More...
int(*	multiply )(const void *base, const void *scalar, void *result)
	Multiply scalar by curve point. More...
int(*	add )(const void *addend, const void *augend, void *result)
	Add curve points (as a one-off operation) More...

Detailed Description

An elliptic curve.

Definition at line 177 of file crypto.h.

Field Documentation

name

const char* elliptic_curve::name

Curve name.

Definition at line 179 of file crypto.h.

Referenced by ecdhe_key(), and tls_send_client_key_exchange_ecdhe().

pointsize

size_t elliptic_curve::pointsize

Point (and public key) size.

Definition at line 181 of file crypto.h.

Referenced by ecdsa_alloc(), ecdsa_match(), ecdsa_sign_rs(), ecdsa_verify_rs(), elliptic_add_okx(), elliptic_curve_okx(), elliptic_multiply_okx(), and tls_send_client_key_exchange_ecdhe().

keysize

size_t elliptic_curve::keysize

Scalar (and private key) size.

Definition at line 183 of file crypto.h.

Referenced by ecdsa_alloc(), ecdsa_init_values(), ecdsa_sign_rs(), ecdsa_verify_rs(), elliptic_curve_okx(), elliptic_multiply_okx(), and tls_send_client_key_exchange_ecdhe().

base

const void* elliptic_curve::base

Generator base point.

Definition at line 185 of file crypto.h.

Referenced by ecdhe_key(), ecdsa_sign_rs(), ecdsa_verify_rs(), elliptic_curve_okx(), and elliptic_multiply_okx().

order

const void* elliptic_curve::order

Order of the generator (if prime)

Definition at line 187 of file crypto.h.

Referenced by ecdsa_init_values(), and elliptic_curve_okx().

is_infinity

int( * elliptic_curve::is_infinity) (const void *point)

Check if this is the point at infinity.

Parameters

point

Curve point

Return values

is_infinity

This is the point at infinity

The point at infinity cannot be represented in affine coordinates. Each curve must choose a representation of the point at infinity (e.g. all zeroes).

Definition at line 197 of file crypto.h.

Referenced by elliptic_is_infinity().

multiply

int( * elliptic_curve::multiply) (const void *base, const void *scalar, void *result)

Multiply scalar by curve point.

Parameters

base	Base point
scalar	Scalar multiple
result	Result point to fill in

Return values

rc	Return status code

Definition at line 205 of file crypto.h.

Referenced by elliptic_multiply().

add

int( * elliptic_curve::add) (const void *addend, const void *augend, void *result)

Add curve points (as a one-off operation)

Parameters

addend	Curve point to add
augend	Curve point to add
result	Curve point to hold result

Return values

rc	Return status code

Definition at line 214 of file crypto.h.

Referenced by elliptic_add().

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The documentation for this struct was generated from the following file:

• include/ipxe/crypto.h