23#if !defined(MBEDTLS_CONFIG_FILE)
26#include MBEDTLS_CONFIG_FILE
31#if defined(MBEDTLS_ECDH_VARIANT_EVEREST_ENABLED)
32#undef MBEDTLS_ECDH_LEGACY_CONTEXT
33#include "everest/everest.h"
48#if !defined(MBEDTLS_ECDH_LEGACY_CONTEXT)
56 MBEDTLS_ECDH_VARIANT_NONE = 0,
57 MBEDTLS_ECDH_VARIANT_MBEDTLS_2_0,
58#if defined(MBEDTLS_ECDH_VARIANT_EVEREST_ENABLED)
59 MBEDTLS_ECDH_VARIANT_EVEREST
61} mbedtls_ecdh_variant;
70typedef struct mbedtls_ecdh_context_mbed {
76#if defined(MBEDTLS_ECP_RESTARTABLE)
79} mbedtls_ecdh_context_mbed;
90#if defined(MBEDTLS_ECDH_LEGACY_CONTEXT)
100#if defined(MBEDTLS_ECP_RESTARTABLE)
108 mbedtls_ecdh_variant var;
110 mbedtls_ecdh_context_mbed mbed_ecdh;
111#if defined(MBEDTLS_ECDH_VARIANT_EVEREST_ENABLED)
112 mbedtls_ecdh_context_everest everest_ecdh;
117#if defined(MBEDTLS_ECP_RESTARTABLE)
118 uint8_t restart_enabled;
163 int (*f_rng)(
void *,
unsigned char *,
size_t),
202 int (*f_rng)(
void *,
unsigned char *,
size_t),
266 unsigned char *buf,
size_t blen,
267 int (*f_rng)(
void *,
unsigned char *,
size_t),
295 const unsigned char **buf,
296 const unsigned char *end);
348 unsigned char *buf,
size_t blen,
349 int (*f_rng)(
void *,
unsigned char *,
size_t),
372 const unsigned char *buf,
size_t blen);
405 unsigned char *buf,
size_t blen,
406 int (*f_rng)(
void *,
unsigned char *,
size_t),
409#if defined(MBEDTLS_ECP_RESTARTABLE)
Configuration options (set of defines)
int mbedtls_ecdh_setup(mbedtls_ecdh_context *ctx, mbedtls_ecp_group_id grp_id)
This function sets up the ECDH context with the information given.
int mbedtls_ecdh_get_params(mbedtls_ecdh_context *ctx, const mbedtls_ecp_keypair *key, mbedtls_ecdh_side side)
This function sets up an ECDH context from an EC key.
int mbedtls_ecdh_gen_public(mbedtls_ecp_group *grp, mbedtls_mpi *d, mbedtls_ecp_point *Q, int(*f_rng)(void *, unsigned char *, size_t), void *p_rng)
This function generates an ECDH keypair on an elliptic curve.
int mbedtls_ecdh_make_public(mbedtls_ecdh_context *ctx, size_t *olen, unsigned char *buf, size_t blen, int(*f_rng)(void *, unsigned char *, size_t), void *p_rng)
This function generates a public key and exports it as a TLS ClientKeyExchange payload.
int mbedtls_ecdh_calc_secret(mbedtls_ecdh_context *ctx, size_t *olen, unsigned char *buf, size_t blen, int(*f_rng)(void *, unsigned char *, size_t), void *p_rng)
This function derives and exports the shared secret.
int mbedtls_ecdh_can_do(mbedtls_ecp_group_id gid)
Check whether a given group can be used for ECDH.
int mbedtls_ecdh_make_params(mbedtls_ecdh_context *ctx, size_t *olen, unsigned char *buf, size_t blen, int(*f_rng)(void *, unsigned char *, size_t), void *p_rng)
This function generates an EC key pair and exports its in the format used in a TLS ServerKeyExchange ...
void mbedtls_ecdh_free(mbedtls_ecdh_context *ctx)
This function frees a context.
void mbedtls_ecdh_init(mbedtls_ecdh_context *ctx)
This function initializes an ECDH context.
int mbedtls_ecdh_read_public(mbedtls_ecdh_context *ctx, const unsigned char *buf, size_t blen)
This function parses and processes the ECDHE payload of a TLS ClientKeyExchange message.
struct mbedtls_ecdh_context mbedtls_ecdh_context
The ECDH context structure.
int mbedtls_ecdh_compute_shared(mbedtls_ecp_group *grp, mbedtls_mpi *z, const mbedtls_ecp_point *Q, const mbedtls_mpi *d, int(*f_rng)(void *, unsigned char *, size_t), void *p_rng)
This function computes the shared secret.
int mbedtls_ecdh_read_params(mbedtls_ecdh_context *ctx, const unsigned char **buf, const unsigned char *end)
This function parses the ECDHE parameters in a TLS ServerKeyExchange handshake message.
This file provides an API for Elliptic Curves over GF(P) (ECP).
void mbedtls_ecp_restart_ctx
The ECDH context structure.
The ECP key-pair structure.
The ECP point structure, in Jacobian coordinates.