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Don't call EVP_MD_CTX_reset during EVP_DigestFinal

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This resets the fields of the EVP_MD_CTX and means we can no longer
make calls using the EVP_MD_CTX, such as to query parameters.

Reviewed-by: Paul Dale <paul.dale@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/10013)
This commit is contained in:
Matt Caswell 2019-09-26 14:31:56 +01:00
parent 9a071fef00
commit 15de965ff0
2 changed files with 20 additions and 1 deletions
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11
crypto/evp/digest.c
View File

@ -107,6 +107,16 @@ int EVP_DigestInit_ex(EVP_MD_CTX *ctx, const EVP_MD *type, ENGINE *impl)
EVP_MD_CTX_clear_flags(ctx, EVP_MD_CTX_FLAG_CLEANED);
if (ctx->provctx != NULL) {
if (!ossl_assert(ctx->digest != NULL)) {
EVPerr(EVP_F_EVP_DIGESTINIT_EX, EVP_R_INITIALIZATION_ERROR);
return 0;
}
if (ctx->digest->freectx != NULL)
ctx->digest->freectx(ctx->provctx);
ctx->provctx = NULL;
}
if (type != NULL)
ctx->reqdigest = type;
@ -332,7 +342,6 @@ 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 */

10
crypto/evp/m_sigver.c
View File

@ -31,6 +31,16 @@ static int do_sigver_init(EVP_MD_CTX *ctx, EVP_PKEY_CTX **pctx,
void *provkey = NULL;
int ret;
if (ctx->provctx != NULL) {
if (!ossl_assert(ctx->digest != NULL)) {
ERR_raise(ERR_LIB_EVP, EVP_R_INITIALIZATION_ERROR);
return 0;
}
if (ctx->digest->freectx != NULL)
ctx->digest->freectx(ctx->provctx);
ctx->provctx = NULL;
}
if (ctx->pctx == NULL) {
ctx->pctx = EVP_PKEY_CTX_new(pkey, e);
if (ctx->pctx == NULL)