0c994d54af
Currently, there are two different directories which contain internal header files of libcrypto which are meant to be shared internally: While header files in 'include/internal' are intended to be shared between libcrypto and libssl, the files in 'crypto/include/internal' are intended to be shared inside libcrypto only. To make things complicated, the include search path is set up in such a way that the directive #include "internal/file.h" could refer to a file in either of these two directoroes. This makes it necessary in some cases to add a '_int.h' suffix to some files to resolve this ambiguity: #include "internal/file.h" # located in 'include/internal' #include "internal/file_int.h" # located in 'crypto/include/internal' This commit moves the private crypto headers from 'crypto/include/internal' to 'include/crypto' As a result, the include directives become unambiguous #include "internal/file.h" # located in 'include/internal' #include "crypto/file.h" # located in 'include/crypto' hence the superfluous '_int.h' suffixes can be stripped. The files 'store_int.h' and 'store.h' need to be treated specially; they are joined into a single file. Reviewed-by: Richard Levitte <levitte@openssl.org> (Merged from https://github.com/openssl/openssl/pull/9681)
218 lines
7 KiB
C
218 lines
7 KiB
C
/*
|
|
* Copyright 2006-2018 The OpenSSL Project Authors. All Rights Reserved.
|
|
*
|
|
* Licensed under the OpenSSL license (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 "internal/cryptlib.h"
|
|
#include <openssl/evp.h>
|
|
#include <openssl/objects.h>
|
|
#include <openssl/x509.h>
|
|
#include "crypto/evp.h"
|
|
#include "evp_locl.h"
|
|
|
|
static int update(EVP_MD_CTX *ctx, const void *data, size_t datalen)
|
|
{
|
|
EVPerr(EVP_F_UPDATE, EVP_R_ONLY_ONESHOT_SUPPORTED);
|
|
return 0;
|
|
}
|
|
|
|
static int do_sigver_init(EVP_MD_CTX *ctx, EVP_PKEY_CTX **pctx,
|
|
const EVP_MD *type, ENGINE *e, EVP_PKEY *pkey,
|
|
int ver)
|
|
{
|
|
if (ctx->pctx == NULL)
|
|
ctx->pctx = EVP_PKEY_CTX_new(pkey, e);
|
|
if (ctx->pctx == NULL)
|
|
return 0;
|
|
|
|
if (!(ctx->pctx->pmeth->flags & EVP_PKEY_FLAG_SIGCTX_CUSTOM)) {
|
|
|
|
if (type == NULL) {
|
|
int def_nid;
|
|
if (EVP_PKEY_get_default_digest_nid(pkey, &def_nid) > 0)
|
|
type = EVP_get_digestbynid(def_nid);
|
|
}
|
|
|
|
if (type == NULL) {
|
|
EVPerr(EVP_F_DO_SIGVER_INIT, EVP_R_NO_DEFAULT_DIGEST);
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
if (ver) {
|
|
if (ctx->pctx->pmeth->verifyctx_init) {
|
|
if (ctx->pctx->pmeth->verifyctx_init(ctx->pctx, ctx) <= 0)
|
|
return 0;
|
|
ctx->pctx->operation = EVP_PKEY_OP_VERIFYCTX;
|
|
} else if (ctx->pctx->pmeth->digestverify != 0) {
|
|
ctx->pctx->operation = EVP_PKEY_OP_VERIFY;
|
|
ctx->update = update;
|
|
} else if (EVP_PKEY_verify_init(ctx->pctx) <= 0) {
|
|
return 0;
|
|
}
|
|
} else {
|
|
if (ctx->pctx->pmeth->signctx_init) {
|
|
if (ctx->pctx->pmeth->signctx_init(ctx->pctx, ctx) <= 0)
|
|
return 0;
|
|
ctx->pctx->operation = EVP_PKEY_OP_SIGNCTX;
|
|
} else if (ctx->pctx->pmeth->digestsign != 0) {
|
|
ctx->pctx->operation = EVP_PKEY_OP_SIGN;
|
|
ctx->update = update;
|
|
} else if (EVP_PKEY_sign_init(ctx->pctx) <= 0) {
|
|
return 0;
|
|
}
|
|
}
|
|
if (EVP_PKEY_CTX_set_signature_md(ctx->pctx, type) <= 0)
|
|
return 0;
|
|
if (pctx)
|
|
*pctx = ctx->pctx;
|
|
if (ctx->pctx->pmeth->flags & EVP_PKEY_FLAG_SIGCTX_CUSTOM)
|
|
return 1;
|
|
if (!EVP_DigestInit_ex(ctx, type, e))
|
|
return 0;
|
|
/*
|
|
* This indicates the current algorithm requires
|
|
* special treatment before hashing the tbs-message.
|
|
*/
|
|
if (ctx->pctx->pmeth->digest_custom != NULL)
|
|
return ctx->pctx->pmeth->digest_custom(ctx->pctx, ctx);
|
|
|
|
return 1;
|
|
}
|
|
|
|
int EVP_DigestSignInit(EVP_MD_CTX *ctx, EVP_PKEY_CTX **pctx,
|
|
const EVP_MD *type, ENGINE *e, EVP_PKEY *pkey)
|
|
{
|
|
return do_sigver_init(ctx, pctx, type, e, pkey, 0);
|
|
}
|
|
|
|
int EVP_DigestVerifyInit(EVP_MD_CTX *ctx, EVP_PKEY_CTX **pctx,
|
|
const EVP_MD *type, ENGINE *e, EVP_PKEY *pkey)
|
|
{
|
|
return do_sigver_init(ctx, pctx, type, e, pkey, 1);
|
|
}
|
|
|
|
int EVP_DigestSignFinal(EVP_MD_CTX *ctx, unsigned char *sigret,
|
|
size_t *siglen)
|
|
{
|
|
int sctx = 0, r = 0;
|
|
EVP_PKEY_CTX *pctx = ctx->pctx;
|
|
if (pctx->pmeth->flags & EVP_PKEY_FLAG_SIGCTX_CUSTOM) {
|
|
if (!sigret)
|
|
return pctx->pmeth->signctx(pctx, sigret, siglen, ctx);
|
|
if (ctx->flags & EVP_MD_CTX_FLAG_FINALISE)
|
|
r = pctx->pmeth->signctx(pctx, sigret, siglen, ctx);
|
|
else {
|
|
EVP_PKEY_CTX *dctx = EVP_PKEY_CTX_dup(ctx->pctx);
|
|
if (!dctx)
|
|
return 0;
|
|
r = dctx->pmeth->signctx(dctx, sigret, siglen, ctx);
|
|
EVP_PKEY_CTX_free(dctx);
|
|
}
|
|
return r;
|
|
}
|
|
if (pctx->pmeth->signctx)
|
|
sctx = 1;
|
|
else
|
|
sctx = 0;
|
|
if (sigret) {
|
|
unsigned char md[EVP_MAX_MD_SIZE];
|
|
unsigned int mdlen = 0;
|
|
if (ctx->flags & EVP_MD_CTX_FLAG_FINALISE) {
|
|
if (sctx)
|
|
r = ctx->pctx->pmeth->signctx(ctx->pctx, sigret, siglen, ctx);
|
|
else
|
|
r = EVP_DigestFinal_ex(ctx, md, &mdlen);
|
|
} else {
|
|
EVP_MD_CTX *tmp_ctx = EVP_MD_CTX_new();
|
|
if (tmp_ctx == NULL)
|
|
return 0;
|
|
if (!EVP_MD_CTX_copy_ex(tmp_ctx, ctx)) {
|
|
EVP_MD_CTX_free(tmp_ctx);
|
|
return 0;
|
|
}
|
|
if (sctx)
|
|
r = tmp_ctx->pctx->pmeth->signctx(tmp_ctx->pctx,
|
|
sigret, siglen, tmp_ctx);
|
|
else
|
|
r = EVP_DigestFinal_ex(tmp_ctx, md, &mdlen);
|
|
EVP_MD_CTX_free(tmp_ctx);
|
|
}
|
|
if (sctx || !r)
|
|
return r;
|
|
if (EVP_PKEY_sign(ctx->pctx, sigret, siglen, md, mdlen) <= 0)
|
|
return 0;
|
|
} else {
|
|
if (sctx) {
|
|
if (pctx->pmeth->signctx(pctx, sigret, siglen, ctx) <= 0)
|
|
return 0;
|
|
} else {
|
|
int s = EVP_MD_size(ctx->digest);
|
|
if (s < 0 || EVP_PKEY_sign(pctx, sigret, siglen, NULL, s) <= 0)
|
|
return 0;
|
|
}
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
int EVP_DigestSign(EVP_MD_CTX *ctx, unsigned char *sigret, size_t *siglen,
|
|
const unsigned char *tbs, size_t tbslen)
|
|
{
|
|
if (ctx->pctx->pmeth->digestsign != NULL)
|
|
return ctx->pctx->pmeth->digestsign(ctx, sigret, siglen, tbs, tbslen);
|
|
if (sigret != NULL && EVP_DigestSignUpdate(ctx, tbs, tbslen) <= 0)
|
|
return 0;
|
|
return EVP_DigestSignFinal(ctx, sigret, siglen);
|
|
}
|
|
|
|
int EVP_DigestVerifyFinal(EVP_MD_CTX *ctx, const unsigned char *sig,
|
|
size_t siglen)
|
|
{
|
|
unsigned char md[EVP_MAX_MD_SIZE];
|
|
int r = 0;
|
|
unsigned int mdlen = 0;
|
|
int vctx = 0;
|
|
|
|
if (ctx->pctx->pmeth->verifyctx)
|
|
vctx = 1;
|
|
else
|
|
vctx = 0;
|
|
if (ctx->flags & EVP_MD_CTX_FLAG_FINALISE) {
|
|
if (vctx)
|
|
r = ctx->pctx->pmeth->verifyctx(ctx->pctx, sig, siglen, ctx);
|
|
else
|
|
r = EVP_DigestFinal_ex(ctx, md, &mdlen);
|
|
} else {
|
|
EVP_MD_CTX *tmp_ctx = EVP_MD_CTX_new();
|
|
if (tmp_ctx == NULL)
|
|
return -1;
|
|
if (!EVP_MD_CTX_copy_ex(tmp_ctx, ctx)) {
|
|
EVP_MD_CTX_free(tmp_ctx);
|
|
return -1;
|
|
}
|
|
if (vctx)
|
|
r = tmp_ctx->pctx->pmeth->verifyctx(tmp_ctx->pctx,
|
|
sig, siglen, tmp_ctx);
|
|
else
|
|
r = EVP_DigestFinal_ex(tmp_ctx, md, &mdlen);
|
|
EVP_MD_CTX_free(tmp_ctx);
|
|
}
|
|
if (vctx || !r)
|
|
return r;
|
|
return EVP_PKEY_verify(ctx->pctx, sig, siglen, md, mdlen);
|
|
}
|
|
|
|
int EVP_DigestVerify(EVP_MD_CTX *ctx, const unsigned char *sigret,
|
|
size_t siglen, const unsigned char *tbs, size_t tbslen)
|
|
{
|
|
if (ctx->pctx->pmeth->digestverify != NULL)
|
|
return ctx->pctx->pmeth->digestverify(ctx, sigret, siglen, tbs, tbslen);
|
|
if (EVP_DigestVerifyUpdate(ctx, tbs, tbslen) <= 0)
|
|
return -1;
|
|
return EVP_DigestVerifyFinal(ctx, sigret, siglen);
|
|
}
|