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pvk kdf: implement ctx dup operation

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Reviewed-by: Shane Lontis <shane.lontis@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/17572)
This commit is contained in:
Pauli 2022-01-24 17:08:58 +11:00
parent 4c1a841c3d
commit fe01052f77
1 changed files with 22 additions and 0 deletions
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22
providers/implementations/kdfs/pvkkdf.c
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@ -17,6 +17,7 @@
#include "prov/provider_util.h"
static OSSL_FUNC_kdf_newctx_fn kdf_pvk_new;
static OSSL_FUNC_kdf_dupctx_fn kdf_pvk_dup;
static OSSL_FUNC_kdf_freectx_fn kdf_pvk_free;
static OSSL_FUNC_kdf_reset_fn kdf_pvk_reset;
static OSSL_FUNC_kdf_derive_fn kdf_pvk_derive;
@ -71,6 +72,26 @@ static void kdf_pvk_free(void *vctx)
}
}
static void *kdf_pvk_dup(void *vctx)
{
const KDF_PVK *src = (const KDF_PVK *)vctx;
KDF_PVK *dest;
dest = kdf_pvk_new(src->provctx);
if (dest != NULL)
if (!ossl_prov_memdup(src->salt, src->salt_len,
&dest->salt, &dest->salt_len)
|| !ossl_prov_memdup(src->pass, src->pass_len,
&dest->pass , &dest->pass_len)
|| !ossl_prov_digest_copy(&dest->digest, &src->digest))
goto err;
return dest;
err:
kdf_pvk_free(dest);
return NULL;
}
static void kdf_pvk_reset(void *vctx)
{
KDF_PVK *ctx = (KDF_PVK *)vctx;
@ -216,6 +237,7 @@ static const OSSL_PARAM *kdf_pvk_gettable_ctx_params(ossl_unused void *ctx,
const OSSL_DISPATCH ossl_kdf_pvk_functions[] = {
{ OSSL_FUNC_KDF_NEWCTX, (void(*)(void))kdf_pvk_new },
{ OSSL_FUNC_KDF_DUPCTX, (void(*)(void))kdf_pvk_dup },
{ OSSL_FUNC_KDF_FREECTX, (void(*)(void))kdf_pvk_free },
{ OSSL_FUNC_KDF_RESET, (void(*)(void))kdf_pvk_reset },
{ OSSL_FUNC_KDF_DERIVE, (void(*)(void))kdf_pvk_derive },