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openssl/crypto/evp/pmeth_lib.c
Richard Levitte 8b84b075ff Adapt DH to use with KEYMGMT 
The biggest part in this was to move the key->param builder from EVP
to the DH ASN.1 method, and to implement the KEYMGMT support in the
provider DH.

Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/9394)
2019-07-23 19:43:09 +02:00

965 lines
29 KiB
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/*
* Copyright 2006-2018 The OpenSSL Project Authors. All Rights Reserved.
*
* Licensed under the Apache License 2.0 (the "License"). You may not use
* this file except in compliance with the License. You can obtain a copy
* in the file LICENSE in the source distribution or at
* https://www.openssl.org/source/license.html
*/
#include <stdio.h>
#include <stdlib.h>
#include <openssl/engine.h>
#include <openssl/evp.h>
#include <openssl/x509v3.h>
#include <openssl/core_names.h>
#include <openssl/dh.h>
#include "internal/cryptlib.h"
#include "internal/asn1_int.h"
#include "internal/evp_int.h"
#include "internal/numbers.h"
#include "evp_locl.h"
typedef int sk_cmp_fn_type(const char *const *a, const char *const *b);
static STACK_OF(EVP_PKEY_METHOD) *app_pkey_methods = NULL;
/* This array needs to be in order of NIDs */
static const EVP_PKEY_METHOD *standard_methods[] = {
#ifndef OPENSSL_NO_RSA
&rsa_pkey_meth,
#endif
#ifndef OPENSSL_NO_DH
&dh_pkey_meth,
#endif
#ifndef OPENSSL_NO_DSA
&dsa_pkey_meth,
#endif
#ifndef OPENSSL_NO_EC
&ec_pkey_meth,
#endif
&hmac_pkey_meth,
#ifndef OPENSSL_NO_CMAC
&cmac_pkey_meth,
#endif
#ifndef OPENSSL_NO_RSA
&rsa_pss_pkey_meth,
#endif
#ifndef OPENSSL_NO_DH
&dhx_pkey_meth,
#endif
#ifndef OPENSSL_NO_SCRYPT
&scrypt_pkey_meth,
#endif
&tls1_prf_pkey_meth,
#ifndef OPENSSL_NO_EC
&ecx25519_pkey_meth,
&ecx448_pkey_meth,
#endif
&hkdf_pkey_meth,
#ifndef OPENSSL_NO_POLY1305
&poly1305_pkey_meth,
#endif
#ifndef OPENSSL_NO_SIPHASH
&siphash_pkey_meth,
#endif
#ifndef OPENSSL_NO_EC
&ed25519_pkey_meth,
&ed448_pkey_meth,
#endif
#ifndef OPENSSL_NO_SM2
&sm2_pkey_meth,
#endif
};
DECLARE_OBJ_BSEARCH_CMP_FN(const EVP_PKEY_METHOD *, const EVP_PKEY_METHOD *,
pmeth);
static int pmeth_cmp(const EVP_PKEY_METHOD *const *a,
const EVP_PKEY_METHOD *const *b)
{
return ((*a)->pkey_id - (*b)->pkey_id);
}
IMPLEMENT_OBJ_BSEARCH_CMP_FN(const EVP_PKEY_METHOD *, const EVP_PKEY_METHOD *,
pmeth);
const EVP_PKEY_METHOD *EVP_PKEY_meth_find(int type)
{
EVP_PKEY_METHOD tmp;
const EVP_PKEY_METHOD *t = &tmp, **ret;
tmp.pkey_id = type;
if (app_pkey_methods) {
int idx;
idx = sk_EVP_PKEY_METHOD_find(app_pkey_methods, &tmp);
if (idx >= 0)
return sk_EVP_PKEY_METHOD_value(app_pkey_methods, idx);
}
ret = OBJ_bsearch_pmeth(&t, standard_methods,
sizeof(standard_methods) /
sizeof(EVP_PKEY_METHOD *));
if (!ret || !*ret)
return NULL;
return *ret;
}
static EVP_PKEY_CTX *int_ctx_new(EVP_PKEY *pkey, ENGINE *e, int id)
{
EVP_PKEY_CTX *ret;
const EVP_PKEY_METHOD *pmeth = NULL;
/*
* When using providers, the context is bound to the algo implementation
* later.
*/
if (pkey == NULL && e == NULL && id == -1)
goto common;
/* TODO(3.0) Legacy code should be removed when all is provider based */
/* BEGIN legacy */
if (id == -1) {
if (pkey == NULL)
return 0;
id = pkey->type;
}
#ifndef OPENSSL_NO_ENGINE
if (e == NULL && pkey != NULL)
e = pkey->pmeth_engine != NULL ? pkey->pmeth_engine : pkey->engine;
/* Try to find an ENGINE which implements this method */
if (e) {
if (!ENGINE_init(e)) {
EVPerr(EVP_F_INT_CTX_NEW, ERR_R_ENGINE_LIB);
return NULL;
}
} else {
e = ENGINE_get_pkey_meth_engine(id);
}
/*
* If an ENGINE handled this method look it up. Otherwise use internal
* tables.
*/
if (e)
pmeth = ENGINE_get_pkey_meth(e, id);
else
#endif
pmeth = EVP_PKEY_meth_find(id);
if (pmeth == NULL) {
#ifndef OPENSSL_NO_ENGINE
ENGINE_finish(e);
#endif
EVPerr(EVP_F_INT_CTX_NEW, EVP_R_UNSUPPORTED_ALGORITHM);
return NULL;
}
/* END legacy */
common:
ret = OPENSSL_zalloc(sizeof(*ret));
if (ret == NULL) {
#ifndef OPENSSL_NO_ENGINE
ENGINE_finish(e);
#endif
EVPerr(EVP_F_INT_CTX_NEW, ERR_R_MALLOC_FAILURE);
return NULL;
}
ret->engine = e;
ret->pmeth = pmeth;
ret->operation = EVP_PKEY_OP_UNDEFINED;
ret->pkey = pkey;
if (pkey != NULL)
EVP_PKEY_up_ref(pkey);
if (pmeth != NULL && pmeth->init != NULL) {
if (pmeth->init(ret) <= 0) {
ret->pmeth = NULL;
EVP_PKEY_CTX_free(ret);
return NULL;
}
}
return ret;
}
EVP_PKEY_METHOD *EVP_PKEY_meth_new(int id, int flags)
{
EVP_PKEY_METHOD *pmeth;
pmeth = OPENSSL_zalloc(sizeof(*pmeth));
if (pmeth == NULL) {
EVPerr(EVP_F_EVP_PKEY_METH_NEW, ERR_R_MALLOC_FAILURE);
return NULL;
}
pmeth->pkey_id = id;
pmeth->flags = flags | EVP_PKEY_FLAG_DYNAMIC;
return pmeth;
}
void EVP_PKEY_meth_get0_info(int *ppkey_id, int *pflags,
const EVP_PKEY_METHOD *meth)
{
if (ppkey_id)
*ppkey_id = meth->pkey_id;
if (pflags)
*pflags = meth->flags;
}
void EVP_PKEY_meth_copy(EVP_PKEY_METHOD *dst, const EVP_PKEY_METHOD *src)
{
dst->init = src->init;
dst->copy = src->copy;
dst->cleanup = src->cleanup;
dst->paramgen_init = src->paramgen_init;
dst->paramgen = src->paramgen;
dst->keygen_init = src->keygen_init;
dst->keygen = src->keygen;
dst->sign_init = src->sign_init;
dst->sign = src->sign;
dst->verify_init = src->verify_init;
dst->verify = src->verify;
dst->verify_recover_init = src->verify_recover_init;
dst->verify_recover = src->verify_recover;
dst->signctx_init = src->signctx_init;
dst->signctx = src->signctx;
dst->verifyctx_init = src->verifyctx_init;
dst->verifyctx = src->verifyctx;
dst->encrypt_init = src->encrypt_init;
dst->encrypt = src->encrypt;
dst->decrypt_init = src->decrypt_init;
dst->decrypt = src->decrypt;
dst->derive_init = src->derive_init;
dst->derive = src->derive;
dst->ctrl = src->ctrl;
dst->ctrl_str = src->ctrl_str;
dst->check = src->check;
}
void EVP_PKEY_meth_free(EVP_PKEY_METHOD *pmeth)
{
if (pmeth && (pmeth->flags & EVP_PKEY_FLAG_DYNAMIC))
OPENSSL_free(pmeth);
}
EVP_PKEY_CTX *EVP_PKEY_CTX_new(EVP_PKEY *pkey, ENGINE *e)
{
return int_ctx_new(pkey, e, -1);
}
EVP_PKEY_CTX *EVP_PKEY_CTX_new_id(int id, ENGINE *e)
{
return int_ctx_new(NULL, e, id);
}
EVP_PKEY_CTX *EVP_PKEY_CTX_dup(const EVP_PKEY_CTX *pctx)
{
EVP_PKEY_CTX *rctx;
if (((pctx->pmeth == NULL) || (pctx->pmeth->copy == NULL))
&& pctx->exchprovctx == NULL)
return NULL;
#ifndef OPENSSL_NO_ENGINE
/* Make sure it's safe to copy a pkey context using an ENGINE */
if (pctx->engine && !ENGINE_init(pctx->engine)) {
EVPerr(EVP_F_EVP_PKEY_CTX_DUP, ERR_R_ENGINE_LIB);
return 0;
}
#endif
rctx = OPENSSL_zalloc(sizeof(*rctx));
if (rctx == NULL) {
EVPerr(EVP_F_EVP_PKEY_CTX_DUP, ERR_R_MALLOC_FAILURE);
return NULL;
}
if (pctx->pkey != NULL)
EVP_PKEY_up_ref(pctx->pkey);
rctx->pkey = pctx->pkey;
rctx->operation = pctx->operation;
if (pctx->exchprovctx != NULL) {
if (!ossl_assert(pctx->exchange != NULL))
return NULL;
rctx->exchange = pctx->exchange;
if (!EVP_KEYEXCH_up_ref(rctx->exchange)) {
OPENSSL_free(rctx);
return NULL;
}
rctx->exchprovctx = pctx->exchange->dupctx(pctx->exchprovctx);
if (rctx->exchprovctx == NULL) {
EVP_KEYEXCH_free(rctx->exchange);
OPENSSL_free(rctx);
return NULL;
}
return rctx;
}
rctx->pmeth = pctx->pmeth;
#ifndef OPENSSL_NO_ENGINE
rctx->engine = pctx->engine;
#endif
if (pctx->peerkey)
EVP_PKEY_up_ref(pctx->peerkey);
rctx->peerkey = pctx->peerkey;
if (pctx->pmeth->copy(rctx, pctx) > 0)
return rctx;
rctx->pmeth = NULL;
EVP_PKEY_CTX_free(rctx);
return NULL;
}
int EVP_PKEY_meth_add0(const EVP_PKEY_METHOD *pmeth)
{
if (app_pkey_methods == NULL) {
app_pkey_methods = sk_EVP_PKEY_METHOD_new(pmeth_cmp);
if (app_pkey_methods == NULL){
EVPerr(EVP_F_EVP_PKEY_METH_ADD0, ERR_R_MALLOC_FAILURE);
return 0;
}
}
if (!sk_EVP_PKEY_METHOD_push(app_pkey_methods, pmeth)) {
EVPerr(EVP_F_EVP_PKEY_METH_ADD0, ERR_R_MALLOC_FAILURE);
return 0;
}
sk_EVP_PKEY_METHOD_sort(app_pkey_methods);
return 1;
}
void evp_app_cleanup_int(void)
{
if (app_pkey_methods != NULL)
sk_EVP_PKEY_METHOD_pop_free(app_pkey_methods, EVP_PKEY_meth_free);
}
int EVP_PKEY_meth_remove(const EVP_PKEY_METHOD *pmeth)
{
const EVP_PKEY_METHOD *ret;
ret = sk_EVP_PKEY_METHOD_delete_ptr(app_pkey_methods, pmeth);
return ret == NULL ? 0 : 1;
}
size_t EVP_PKEY_meth_get_count(void)
{
size_t rv = OSSL_NELEM(standard_methods);
if (app_pkey_methods)
rv += sk_EVP_PKEY_METHOD_num(app_pkey_methods);
return rv;
}
const EVP_PKEY_METHOD *EVP_PKEY_meth_get0(size_t idx)
{
if (idx < OSSL_NELEM(standard_methods))
return standard_methods[idx];
if (app_pkey_methods == NULL)
return NULL;
idx -= OSSL_NELEM(standard_methods);
if (idx >= (size_t)sk_EVP_PKEY_METHOD_num(app_pkey_methods))
return NULL;
return sk_EVP_PKEY_METHOD_value(app_pkey_methods, idx);
}
void EVP_PKEY_CTX_free(EVP_PKEY_CTX *ctx)
{
if (ctx == NULL)
return;
if (ctx->pmeth && ctx->pmeth->cleanup)
ctx->pmeth->cleanup(ctx);
if (ctx->exchprovctx != NULL && ctx->exchange != NULL)
ctx->exchange->freectx(ctx->exchprovctx);
EVP_KEYEXCH_free(ctx->exchange);
EVP_PKEY_free(ctx->pkey);
EVP_PKEY_free(ctx->peerkey);
#ifndef OPENSSL_NO_ENGINE
ENGINE_finish(ctx->engine);
#endif
OPENSSL_free(ctx);
}
int EVP_PKEY_CTX_set_params(EVP_PKEY_CTX *ctx, OSSL_PARAM *params)
{
if (ctx->exchprovctx != NULL && ctx->exchange != NULL)
return ctx->exchange->set_params(ctx->exchprovctx, params);
return 0;
}
#ifndef OPENSSL_NO_DH
int EVP_PKEY_CTX_set_dh_pad(EVP_PKEY_CTX *ctx, int pad)
{
OSSL_PARAM dh_pad_params[2];
/* TODO(3.0): Remove this eventually when no more legacy */
if (ctx->exchprovctx == NULL)
return EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_DH, EVP_PKEY_OP_DERIVE,
EVP_PKEY_CTRL_DH_PAD, pad, NULL);
dh_pad_params[0] = OSSL_PARAM_construct_int(OSSL_EXCHANGE_PARAM_PAD, &pad);
dh_pad_params[1] = OSSL_PARAM_construct_end();
return EVP_PKEY_CTX_set_params(ctx, dh_pad_params);
}
#endif
static int legacy_ctrl_to_param(EVP_PKEY_CTX *ctx, int keytype, int optype,
int cmd, int p1, void *p2)
{
switch (cmd) {
#ifndef OPENSSL_NO_DH
case EVP_PKEY_CTRL_DH_PAD:
return EVP_PKEY_CTX_set_dh_pad(ctx, p1);
#endif
}
return 0;
}
int EVP_PKEY_CTX_ctrl(EVP_PKEY_CTX *ctx, int keytype, int optype,
int cmd, int p1, void *p2)
{
int ret;
if (ctx == NULL) {
EVPerr(EVP_F_EVP_PKEY_CTX_CTRL, EVP_R_COMMAND_NOT_SUPPORTED);
return -2;
}
if (ctx->exchprovctx != NULL)
return legacy_ctrl_to_param(ctx, keytype, optype, cmd, p1, p2);
if (ctx->pmeth == NULL || ctx->pmeth->ctrl == NULL) {
EVPerr(EVP_F_EVP_PKEY_CTX_CTRL, EVP_R_COMMAND_NOT_SUPPORTED);
return -2;
}
if ((keytype != -1) && (ctx->pmeth->pkey_id != keytype))
return -1;
/* Skip the operation checks since this is called in a very early stage */
if (ctx->pmeth->digest_custom != NULL)
goto doit;
if (ctx->operation == EVP_PKEY_OP_UNDEFINED) {
EVPerr(EVP_F_EVP_PKEY_CTX_CTRL, EVP_R_NO_OPERATION_SET);
return -1;
}
if ((optype != -1) && !(ctx->operation & optype)) {
EVPerr(EVP_F_EVP_PKEY_CTX_CTRL, EVP_R_INVALID_OPERATION);
return -1;
}
doit:
ret = ctx->pmeth->ctrl(ctx, cmd, p1, p2);
if (ret == -2)
EVPerr(EVP_F_EVP_PKEY_CTX_CTRL, EVP_R_COMMAND_NOT_SUPPORTED);
return ret;
}
int EVP_PKEY_CTX_ctrl_uint64(EVP_PKEY_CTX *ctx, int keytype, int optype,
int cmd, uint64_t value)
{
return EVP_PKEY_CTX_ctrl(ctx, keytype, optype, cmd, 0, &value);
}
static int legacy_ctrl_str_to_param(EVP_PKEY_CTX *ctx, const char *name,
const char *value)
{
#ifndef OPENSSL_NO_DH
if (strcmp(name, "dh_pad") == 0) {
int pad;
pad = atoi(value);
return EVP_PKEY_CTX_set_dh_pad(ctx, pad);
}
#endif
return 0;
}
int EVP_PKEY_CTX_ctrl_str(EVP_PKEY_CTX *ctx,
const char *name, const char *value)
{
if (ctx == NULL) {
EVPerr(EVP_F_EVP_PKEY_CTX_CTRL_STR, EVP_R_COMMAND_NOT_SUPPORTED);
return -2;
}
if (ctx->exchprovctx != NULL)
return legacy_ctrl_str_to_param(ctx, name, value);
if (!ctx || !ctx->pmeth || !ctx->pmeth->ctrl_str) {
EVPerr(EVP_F_EVP_PKEY_CTX_CTRL_STR, EVP_R_COMMAND_NOT_SUPPORTED);
return -2;
}
if (strcmp(name, "digest") == 0)
return EVP_PKEY_CTX_md(ctx, EVP_PKEY_OP_TYPE_SIG, EVP_PKEY_CTRL_MD,
value);
return ctx->pmeth->ctrl_str(ctx, name, value);
}
/* Utility functions to send a string of hex string to a ctrl */
int EVP_PKEY_CTX_str2ctrl(EVP_PKEY_CTX *ctx, int cmd, const char *str)
{
size_t len;
len = strlen(str);
if (len > INT_MAX)
return -1;
return ctx->pmeth->ctrl(ctx, cmd, len, (void *)str);
}
int EVP_PKEY_CTX_hex2ctrl(EVP_PKEY_CTX *ctx, int cmd, const char *hex)
{
unsigned char *bin;
long binlen;
int rv = -1;
bin = OPENSSL_hexstr2buf(hex, &binlen);
if (bin == NULL)
return 0;
if (binlen <= INT_MAX)
rv = ctx->pmeth->ctrl(ctx, cmd, binlen, bin);
OPENSSL_free(bin);
return rv;
}
/* Pass a message digest to a ctrl */
int EVP_PKEY_CTX_md(EVP_PKEY_CTX *ctx, int optype, int cmd, const char *md)
{
const EVP_MD *m;
if (md == NULL || (m = EVP_get_digestbyname(md)) == NULL) {
EVPerr(EVP_F_EVP_PKEY_CTX_MD, EVP_R_INVALID_DIGEST);
return 0;
}
return EVP_PKEY_CTX_ctrl(ctx, -1, optype, cmd, 0, (void *)m);
}
int EVP_PKEY_CTX_get_operation(EVP_PKEY_CTX *ctx)
{
return ctx->operation;
}
void EVP_PKEY_CTX_set0_keygen_info(EVP_PKEY_CTX *ctx, int *dat, int datlen)
{
ctx->keygen_info = dat;
ctx->keygen_info_count = datlen;
}
void EVP_PKEY_CTX_set_data(EVP_PKEY_CTX *ctx, void *data)
{
ctx->data = data;
}
void *EVP_PKEY_CTX_get_data(const EVP_PKEY_CTX *ctx)
{
return ctx->data;
}
EVP_PKEY *EVP_PKEY_CTX_get0_pkey(EVP_PKEY_CTX *ctx)
{
return ctx->pkey;
}
EVP_PKEY *EVP_PKEY_CTX_get0_peerkey(EVP_PKEY_CTX *ctx)
{
return ctx->peerkey;
}
void EVP_PKEY_CTX_set_app_data(EVP_PKEY_CTX *ctx, void *data)
{
ctx->app_data = data;
}
void *EVP_PKEY_CTX_get_app_data(EVP_PKEY_CTX *ctx)
{
return ctx->app_data;
}
void EVP_PKEY_meth_set_init(EVP_PKEY_METHOD *pmeth,
int (*init) (EVP_PKEY_CTX *ctx))
{
pmeth->init = init;
}
void EVP_PKEY_meth_set_copy(EVP_PKEY_METHOD *pmeth,
int (*copy) (EVP_PKEY_CTX *dst,
const EVP_PKEY_CTX *src))
{
pmeth->copy = copy;
}
void EVP_PKEY_meth_set_cleanup(EVP_PKEY_METHOD *pmeth,
void (*cleanup) (EVP_PKEY_CTX *ctx))
{
pmeth->cleanup = cleanup;
}
void EVP_PKEY_meth_set_paramgen(EVP_PKEY_METHOD *pmeth,
int (*paramgen_init) (EVP_PKEY_CTX *ctx),
int (*paramgen) (EVP_PKEY_CTX *ctx,
EVP_PKEY *pkey))
{
pmeth->paramgen_init = paramgen_init;
pmeth->paramgen = paramgen;
}
void EVP_PKEY_meth_set_keygen(EVP_PKEY_METHOD *pmeth,
int (*keygen_init) (EVP_PKEY_CTX *ctx),
int (*keygen) (EVP_PKEY_CTX *ctx,
EVP_PKEY *pkey))
{
pmeth->keygen_init = keygen_init;
pmeth->keygen = keygen;
}
void EVP_PKEY_meth_set_sign(EVP_PKEY_METHOD *pmeth,
int (*sign_init) (EVP_PKEY_CTX *ctx),
int (*sign) (EVP_PKEY_CTX *ctx,
unsigned char *sig, size_t *siglen,
const unsigned char *tbs,
size_t tbslen))
{
pmeth->sign_init = sign_init;
pmeth->sign = sign;
}
void EVP_PKEY_meth_set_verify(EVP_PKEY_METHOD *pmeth,
int (*verify_init) (EVP_PKEY_CTX *ctx),
int (*verify) (EVP_PKEY_CTX *ctx,
const unsigned char *sig,
size_t siglen,
const unsigned char *tbs,
size_t tbslen))
{
pmeth->verify_init = verify_init;
pmeth->verify = verify;
}
void EVP_PKEY_meth_set_verify_recover(EVP_PKEY_METHOD *pmeth,
int (*verify_recover_init) (EVP_PKEY_CTX
*ctx),
int (*verify_recover) (EVP_PKEY_CTX
*ctx,
unsigned char
*sig,
size_t *siglen,
const unsigned
char *tbs,
size_t tbslen))
{
pmeth->verify_recover_init = verify_recover_init;
pmeth->verify_recover = verify_recover;
}
void EVP_PKEY_meth_set_signctx(EVP_PKEY_METHOD *pmeth,
int (*signctx_init) (EVP_PKEY_CTX *ctx,
EVP_MD_CTX *mctx),
int (*signctx) (EVP_PKEY_CTX *ctx,
unsigned char *sig,
size_t *siglen,
EVP_MD_CTX *mctx))
{
pmeth->signctx_init = signctx_init;
pmeth->signctx = signctx;
}
void EVP_PKEY_meth_set_verifyctx(EVP_PKEY_METHOD *pmeth,
int (*verifyctx_init) (EVP_PKEY_CTX *ctx,
EVP_MD_CTX *mctx),
int (*verifyctx) (EVP_PKEY_CTX *ctx,
const unsigned char *sig,
int siglen,
EVP_MD_CTX *mctx))
{
pmeth->verifyctx_init = verifyctx_init;
pmeth->verifyctx = verifyctx;
}
void EVP_PKEY_meth_set_encrypt(EVP_PKEY_METHOD *pmeth,
int (*encrypt_init) (EVP_PKEY_CTX *ctx),
int (*encryptfn) (EVP_PKEY_CTX *ctx,
unsigned char *out,
size_t *outlen,
const unsigned char *in,
size_t inlen))
{
pmeth->encrypt_init = encrypt_init;
pmeth->encrypt = encryptfn;
}
void EVP_PKEY_meth_set_decrypt(EVP_PKEY_METHOD *pmeth,
int (*decrypt_init) (EVP_PKEY_CTX *ctx),
int (*decrypt) (EVP_PKEY_CTX *ctx,
unsigned char *out,
size_t *outlen,
const unsigned char *in,
size_t inlen))
{
pmeth->decrypt_init = decrypt_init;
pmeth->decrypt = decrypt;
}
void EVP_PKEY_meth_set_derive(EVP_PKEY_METHOD *pmeth,
int (*derive_init) (EVP_PKEY_CTX *ctx),
int (*derive) (EVP_PKEY_CTX *ctx,
unsigned char *key,
size_t *keylen))
{
pmeth->derive_init = derive_init;
pmeth->derive = derive;
}
void EVP_PKEY_meth_set_ctrl(EVP_PKEY_METHOD *pmeth,
int (*ctrl) (EVP_PKEY_CTX *ctx, int type, int p1,
void *p2),
int (*ctrl_str) (EVP_PKEY_CTX *ctx,
const char *type,
const char *value))
{
pmeth->ctrl = ctrl;
pmeth->ctrl_str = ctrl_str;
}
void EVP_PKEY_meth_set_check(EVP_PKEY_METHOD *pmeth,
int (*check) (EVP_PKEY *pkey))
{
pmeth->check = check;
}
void EVP_PKEY_meth_set_public_check(EVP_PKEY_METHOD *pmeth,
int (*check) (EVP_PKEY *pkey))
{
pmeth->public_check = check;
}
void EVP_PKEY_meth_set_param_check(EVP_PKEY_METHOD *pmeth,
int (*check) (EVP_PKEY *pkey))
{
pmeth->param_check = check;
}
void EVP_PKEY_meth_set_digest_custom(EVP_PKEY_METHOD *pmeth,
int (*digest_custom) (EVP_PKEY_CTX *ctx,
EVP_MD_CTX *mctx))
{
pmeth->digest_custom = digest_custom;
}
void EVP_PKEY_meth_get_init(const EVP_PKEY_METHOD *pmeth,
int (**pinit) (EVP_PKEY_CTX *ctx))
{
*pinit = pmeth->init;
}
void EVP_PKEY_meth_get_copy(const EVP_PKEY_METHOD *pmeth,
int (**pcopy) (EVP_PKEY_CTX *dst,
const EVP_PKEY_CTX *src))
{
*pcopy = pmeth->copy;
}
void EVP_PKEY_meth_get_cleanup(const EVP_PKEY_METHOD *pmeth,
void (**pcleanup) (EVP_PKEY_CTX *ctx))
{
*pcleanup = pmeth->cleanup;
}
void EVP_PKEY_meth_get_paramgen(const EVP_PKEY_METHOD *pmeth,
int (**pparamgen_init) (EVP_PKEY_CTX *ctx),
int (**pparamgen) (EVP_PKEY_CTX *ctx,
EVP_PKEY *pkey))
{
if (pparamgen_init)
*pparamgen_init = pmeth->paramgen_init;
if (pparamgen)
*pparamgen = pmeth->paramgen;
}
void EVP_PKEY_meth_get_keygen(const EVP_PKEY_METHOD *pmeth,
int (**pkeygen_init) (EVP_PKEY_CTX *ctx),
int (**pkeygen) (EVP_PKEY_CTX *ctx,
EVP_PKEY *pkey))
{
if (pkeygen_init)
*pkeygen_init = pmeth->keygen_init;
if (pkeygen)
*pkeygen = pmeth->keygen;
}
void EVP_PKEY_meth_get_sign(const EVP_PKEY_METHOD *pmeth,
int (**psign_init) (EVP_PKEY_CTX *ctx),
int (**psign) (EVP_PKEY_CTX *ctx,
unsigned char *sig, size_t *siglen,
const unsigned char *tbs,
size_t tbslen))
{
if (psign_init)
*psign_init = pmeth->sign_init;
if (psign)
*psign = pmeth->sign;
}
void EVP_PKEY_meth_get_verify(const EVP_PKEY_METHOD *pmeth,
int (**pverify_init) (EVP_PKEY_CTX *ctx),
int (**pverify) (EVP_PKEY_CTX *ctx,
const unsigned char *sig,
size_t siglen,
const unsigned char *tbs,
size_t tbslen))
{
if (pverify_init)
*pverify_init = pmeth->verify_init;
if (pverify)
*pverify = pmeth->verify;
}
void EVP_PKEY_meth_get_verify_recover(const EVP_PKEY_METHOD *pmeth,
int (**pverify_recover_init) (EVP_PKEY_CTX
*ctx),
int (**pverify_recover) (EVP_PKEY_CTX
*ctx,
unsigned char
*sig,
size_t *siglen,
const unsigned
char *tbs,
size_t tbslen))
{
if (pverify_recover_init)
*pverify_recover_init = pmeth->verify_recover_init;
if (pverify_recover)
*pverify_recover = pmeth->verify_recover;
}
void EVP_PKEY_meth_get_signctx(const EVP_PKEY_METHOD *pmeth,
int (**psignctx_init) (EVP_PKEY_CTX *ctx,
EVP_MD_CTX *mctx),
int (**psignctx) (EVP_PKEY_CTX *ctx,
unsigned char *sig,
size_t *siglen,
EVP_MD_CTX *mctx))
{
if (psignctx_init)
*psignctx_init = pmeth->signctx_init;
if (psignctx)
*psignctx = pmeth->signctx;
}
void EVP_PKEY_meth_get_verifyctx(const EVP_PKEY_METHOD *pmeth,
int (**pverifyctx_init) (EVP_PKEY_CTX *ctx,
EVP_MD_CTX *mctx),
int (**pverifyctx) (EVP_PKEY_CTX *ctx,
const unsigned char *sig,
int siglen,
EVP_MD_CTX *mctx))
{
if (pverifyctx_init)
*pverifyctx_init = pmeth->verifyctx_init;
if (pverifyctx)
*pverifyctx = pmeth->verifyctx;
}
void EVP_PKEY_meth_get_encrypt(const EVP_PKEY_METHOD *pmeth,
int (**pencrypt_init) (EVP_PKEY_CTX *ctx),
int (**pencryptfn) (EVP_PKEY_CTX *ctx,
unsigned char *out,
size_t *outlen,
const unsigned char *in,
size_t inlen))
{
if (pencrypt_init)
*pencrypt_init = pmeth->encrypt_init;
if (pencryptfn)
*pencryptfn = pmeth->encrypt;
}
void EVP_PKEY_meth_get_decrypt(const EVP_PKEY_METHOD *pmeth,
int (**pdecrypt_init) (EVP_PKEY_CTX *ctx),
int (**pdecrypt) (EVP_PKEY_CTX *ctx,
unsigned char *out,
size_t *outlen,
const unsigned char *in,
size_t inlen))
{
if (pdecrypt_init)
*pdecrypt_init = pmeth->decrypt_init;
if (pdecrypt)
*pdecrypt = pmeth->decrypt;
}
void EVP_PKEY_meth_get_derive(const EVP_PKEY_METHOD *pmeth,
int (**pderive_init) (EVP_PKEY_CTX *ctx),
int (**pderive) (EVP_PKEY_CTX *ctx,
unsigned char *key,
size_t *keylen))
{
if (pderive_init)
*pderive_init = pmeth->derive_init;
if (pderive)
*pderive = pmeth->derive;
}
void EVP_PKEY_meth_get_ctrl(const EVP_PKEY_METHOD *pmeth,
int (**pctrl) (EVP_PKEY_CTX *ctx, int type, int p1,
void *p2),
int (**pctrl_str) (EVP_PKEY_CTX *ctx,
const char *type,
const char *value))
{
if (pctrl)
*pctrl = pmeth->ctrl;
if (pctrl_str)
*pctrl_str = pmeth->ctrl_str;
}
void EVP_PKEY_meth_get_check(const EVP_PKEY_METHOD *pmeth,
int (**pcheck) (EVP_PKEY *pkey))
{
if (pcheck != NULL)
*pcheck = pmeth->check;
}
void EVP_PKEY_meth_get_public_check(const EVP_PKEY_METHOD *pmeth,
int (**pcheck) (EVP_PKEY *pkey))
{
if (pcheck != NULL)
*pcheck = pmeth->public_check;
}
void EVP_PKEY_meth_get_param_check(const EVP_PKEY_METHOD *pmeth,
int (**pcheck) (EVP_PKEY *pkey))
{
if (pcheck != NULL)
*pcheck = pmeth->param_check;
}
void EVP_PKEY_meth_get_digest_custom(EVP_PKEY_METHOD *pmeth,
int (**pdigest_custom) (EVP_PKEY_CTX *ctx,
EVP_MD_CTX *mctx))
{
if (pdigest_custom != NULL)
*pdigest_custom = pmeth->digest_custom;
}
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