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Hakase
2019-07-13 19:13:22 +09:00
parent 9a23f88dc2
commit 2e57f602ae
542 changed files with 17287 additions and 6184 deletions
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crypto/evp/digest.c
+125 -61
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@@ -1,5 +1,5 @@
/*
* Copyright 1995-2018 The OpenSSL Project Authors. All Rights Reserved.
* Copyright 1995-2019 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
@@ -8,10 +8,12 @@
*/
#include <stdio.h>
#include "internal/cryptlib.h"
#include <openssl/objects.h>
#include <openssl/evp.h>
#include <openssl/engine.h>
#include <openssl/params.h>
#include <openssl/core_names.h>
#include "internal/cryptlib.h"
#include "internal/evp_int.h"
#include "internal/provider.h"
#include "evp_locl.h"
@@ -127,6 +129,16 @@ int EVP_DigestInit_ex(EVP_MD_CTX *ctx, const EVP_MD *type, ENGINE *impl)
(type == NULL || (type->type == ctx->digest->type)))
goto skip_to_init;
if (type != NULL) {
/*
* Ensure an ENGINE left lying around from last time is cleared (the
* previous check attempted to avoid this if the same ENGINE and
* EVP_MD could be used).
*/
ENGINE_finish(ctx->engine);
ctx->engine = NULL;
}
if (type != NULL && impl == NULL)
tmpimpl = ENGINE_get_digest_engine(type->type);
#endif
@@ -149,16 +161,6 @@ int EVP_DigestInit_ex(EVP_MD_CTX *ctx, const EVP_MD *type, ENGINE *impl)
goto legacy;
}
if (type->prov == NULL) {
switch(type->type) {
case NID_sha256:
case NID_md2:
break;
default:
goto legacy;
}
}
if (ctx->digest != NULL && ctx->digest->ctx_size > 0) {
OPENSSL_clear_free(ctx->md_data, ctx->digest->ctx_size);
ctx->md_data = NULL;
@@ -184,6 +186,11 @@ int EVP_DigestInit_ex(EVP_MD_CTX *ctx, const EVP_MD *type, ENGINE *impl)
#endif
}
if (ctx->provctx != NULL && ctx->digest != NULL && ctx->digest != type) {
if (ctx->digest->freectx != NULL)
ctx->digest->freectx(ctx->provctx);
ctx->provctx = NULL;
}
ctx->digest = type;
if (ctx->provctx == NULL) {
ctx->provctx = ctx->digest->newctx(ossl_provider_ctx(type->prov));
@@ -205,12 +212,6 @@ int EVP_DigestInit_ex(EVP_MD_CTX *ctx, const EVP_MD *type, ENGINE *impl)
#if !defined(OPENSSL_NO_ENGINE) && !defined(FIPS_MODE)
if (type) {
/*
* Ensure an ENGINE left lying around from last time is cleared (the
* previous check attempted to avoid this if the same ENGINE and
* EVP_MD could be used).
*/
ENGINE_finish(ctx->engine);
if (impl != NULL) {
if (!ENGINE_init(impl)) {
EVPerr(EVP_F_EVP_DIGESTINIT_EX, EVP_R_INITIALIZATION_ERROR);
@@ -334,7 +335,6 @@ int EVP_DigestFinal_ex(EVP_MD_CTX *ctx, unsigned char *md, unsigned int *isize)
}
EVP_MD_CTX_reset(ctx);
return ret;
/* TODO(3.0): Remove legacy code below */
@@ -354,12 +354,30 @@ int EVP_DigestFinal_ex(EVP_MD_CTX *ctx, unsigned char *md, unsigned int *isize)
int EVP_DigestFinalXOF(EVP_MD_CTX *ctx, unsigned char *md, size_t size)
{
int ret = 0;
OSSL_PARAM params[2];
size_t i = 0;
if (ctx->digest == NULL || ctx->digest->prov == NULL)
goto legacy;
if (ctx->digest->dfinal == NULL) {
EVPerr(EVP_F_EVP_DIGESTFINALXOF, EVP_R_FINAL_ERROR);
return 0;
}
params[i++] = OSSL_PARAM_construct_size_t(OSSL_DIGEST_PARAM_XOFLEN, &size);
params[i++] = OSSL_PARAM_construct_end();
if (EVP_MD_CTX_set_params(ctx, params) > 0)
ret = ctx->digest->dfinal(ctx->provctx, md, &size, size);
EVP_MD_CTX_reset(ctx);
return ret;
legacy:
if (ctx->digest->flags & EVP_MD_FLAG_XOF
&& size <= INT_MAX
&& ctx->digest->md_ctrl(ctx, EVP_MD_CTRL_XOF_LEN, (int)size, NULL)) {
ret = ctx->digest->final(ctx, md);
if (ctx->digest->cleanup != NULL) {
ctx->digest->cleanup(ctx);
EVP_MD_CTX_set_flags(ctx, EVP_MD_CTX_FLAG_CLEANED);
@@ -404,7 +422,7 @@ int EVP_MD_CTX_copy_ex(EVP_MD_CTX *out, const EVP_MD_CTX *in)
out->provctx = NULL;
if (in->fetched_digest != NULL)
EVP_MD_upref(in->fetched_digest);
EVP_MD_up_ref(in->fetched_digest);
out->provctx = in->digest->dupctx(in->provctx);
if (out->provctx == NULL) {
@@ -506,13 +524,55 @@ int EVP_Digest(const void *data, size_t count,
return ret;
}
int EVP_MD_CTX_set_params(EVP_MD_CTX *ctx, const OSSL_PARAM params[])
{
if (ctx->digest != NULL && ctx->digest->set_params != NULL)
return ctx->digest->set_params(ctx->provctx, params);
return 0;
}
int EVP_MD_CTX_get_params(EVP_MD_CTX *ctx, OSSL_PARAM params[])
{
if (ctx->digest != NULL && ctx->digest->get_params != NULL)
return ctx->digest->get_params(ctx->provctx, params);
return 0;
}
/* TODO(3.0): Remove legacy code below - only used by engines & DigestSign */
int EVP_MD_CTX_ctrl(EVP_MD_CTX *ctx, int cmd, int p1, void *p2)
{
if (ctx->digest && ctx->digest->md_ctrl) {
int ret = ctx->digest->md_ctrl(ctx, cmd, p1, p2);
if (ret <= 0)
if (ctx->digest != NULL) {
if (ctx->digest->prov != NULL) {
OSSL_PARAM params[2];
size_t i, n = 0;
switch (cmd) {
case EVP_MD_CTRL_XOF_LEN:
if (ctx->digest->set_params == NULL)
break;
i = (size_t)p1;
params[n++] =
OSSL_PARAM_construct_size_t(OSSL_DIGEST_PARAM_XOFLEN, &i);
params[n++] = OSSL_PARAM_construct_end();
return ctx->digest->set_params(ctx->provctx, params);
case EVP_MD_CTRL_MICALG:
if (ctx->digest->get_params == NULL)
break;
params[n++] =
OSSL_PARAM_construct_utf8_string(OSSL_DIGEST_PARAM_MICALG,
p2, p1 ? p1 : 9999);
params[n++] = OSSL_PARAM_construct_end();
return ctx->digest->get_params(ctx->provctx, params);
}
return 0;
return 1;
}
/* legacy code */
if (ctx->digest->md_ctrl != NULL) {
int ret = ctx->digest->md_ctrl(ctx, cmd, p1, p2);
if (ret <= 0)
return 0;
return 1;
}
}
return 0;
}
@@ -530,55 +590,59 @@ static void *evp_md_from_dispatch(const OSSL_DISPATCH *fns,
for (; fns->function_id != 0; fns++) {
switch (fns->function_id) {
case OSSL_FUNC_DIGEST_NEWCTX:
if (md->newctx != NULL)
break;
md->newctx = OSSL_get_OP_digest_newctx(fns);
fncnt++;
if (md->newctx == NULL) {
md->newctx = OSSL_get_OP_digest_newctx(fns);
fncnt++;
}
break;
case OSSL_FUNC_DIGEST_INIT:
if (md->dinit != NULL)
break;
md->dinit = OSSL_get_OP_digest_init(fns);
fncnt++;
if (md->dinit == NULL) {
md->dinit = OSSL_get_OP_digest_init(fns);
fncnt++;
}
break;
case OSSL_FUNC_DIGEST_UPDATE:
if (md->dupdate != NULL)
break;
md->dupdate = OSSL_get_OP_digest_update(fns);
fncnt++;
if (md->dupdate == NULL) {
md->dupdate = OSSL_get_OP_digest_update(fns);
fncnt++;
}
break;
case OSSL_FUNC_DIGEST_FINAL:
if (md->dfinal != NULL)
break;
md->dfinal = OSSL_get_OP_digest_final(fns);
fncnt++;
if (md->dfinal == NULL) {
md->dfinal = OSSL_get_OP_digest_final(fns);
fncnt++;
}
break;
case OSSL_FUNC_DIGEST_DIGEST:
if (md->digest != NULL)
break;
md->digest = OSSL_get_OP_digest_digest(fns);
if (md->digest == NULL)
md->digest = OSSL_get_OP_digest_digest(fns);
/* We don't increment fnct for this as it is stand alone */
break;
case OSSL_FUNC_DIGEST_FREECTX:
if (md->freectx != NULL)
break;
md->freectx = OSSL_get_OP_digest_freectx(fns);
fncnt++;
if (md->freectx == NULL) {
md->freectx = OSSL_get_OP_digest_freectx(fns);
fncnt++;
}
break;
case OSSL_FUNC_DIGEST_DUPCTX:
if (md->dupctx != NULL)
break;
md->dupctx = OSSL_get_OP_digest_dupctx(fns);
if (md->dupctx == NULL)
md->dupctx = OSSL_get_OP_digest_dupctx(fns);
break;
case OSSL_FUNC_DIGEST_SIZE:
if (md->size != NULL)
break;
md->size = OSSL_get_OP_digest_size(fns);
if (md->size == NULL)
md->size = OSSL_get_OP_digest_size(fns);
break;
case OSSL_FUNC_DIGEST_BLOCK_SIZE:
if (md->dblock_size != NULL)
break;
md->dblock_size = OSSL_get_OP_digest_block_size(fns);
if (md->dblock_size == NULL)
md->dblock_size = OSSL_get_OP_digest_block_size(fns);
break;
case OSSL_FUNC_DIGEST_SET_PARAMS:
if (md->set_params == NULL)
md->set_params = OSSL_get_OP_digest_set_params(fns);
break;
case OSSL_FUNC_DIGEST_GET_PARAMS:
if (md->get_params == NULL)
md->get_params = OSSL_get_OP_digest_get_params(fns);
break;
}
}
@@ -596,14 +660,14 @@ static void *evp_md_from_dispatch(const OSSL_DISPATCH *fns,
}
md->prov = prov;
if (prov != NULL)
ossl_provider_upref(prov);
ossl_provider_up_ref(prov);
return md;
}
static int evp_md_upref(void *md)
static int evp_md_up_ref(void *md)
{
return EVP_MD_upref(md);
return EVP_MD_up_ref(md);
}
static void evp_md_free(void *md)
@@ -616,7 +680,7 @@ EVP_MD *EVP_MD_fetch(OPENSSL_CTX *ctx, const char *algorithm,
{
EVP_MD *md =
evp_generic_fetch(ctx, OSSL_OP_DIGEST, algorithm, properties,
evp_md_from_dispatch, evp_md_upref,
evp_md_from_dispatch, evp_md_up_ref,
evp_md_free);
#ifndef FIPS_MODE