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PROV: Ensure that ED25519 & ED448 keys have a mandatory digest

Browse source 
This adds handling of the parameter "mandatory-digest" and responds
with an empty string, meaning that no digest may be used.

Reviewed-by: Paul Dale <paul.dale@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/11576)
This commit is contained in:
Richard Levitte 2020-04-20 09:29:47 +02:00 • committed by Matt Caswell
parent 4c627d8635
commit 1a7328c882
2 changed files with 55 additions and 5 deletions
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10
doc/man7/EVP_PKEY-X25519.pod
View file

@ -28,6 +28,16 @@ The private key value.
=back
=head2 ED25519 and ED448 parameters
=over 4
=item "mandatory-digest" (B<OSSL_PKEY_PARAM_MANDATORY_DIGEST>) <utf8 string>
The empty string, signifying that no digest may be specified.
=back
=head1 CONFORMING TO
=over 4

50
providers/implementations/keymgmt/ecx_kmgmt.c
View file

@ -42,7 +42,10 @@ static OSSL_OP_keymgmt_get_params_fn x25519_get_params;
static OSSL_OP_keymgmt_get_params_fn x448_get_params;
static OSSL_OP_keymgmt_get_params_fn ed25519_get_params;
static OSSL_OP_keymgmt_get_params_fn ed448_get_params;
static OSSL_OP_keymgmt_gettable_params_fn ecx_gettable_params;
static OSSL_OP_keymgmt_gettable_params_fn x25519_gettable_params;
static OSSL_OP_keymgmt_gettable_params_fn x448_gettable_params;
static OSSL_OP_keymgmt_gettable_params_fn ed25519_gettable_params;
static OSSL_OP_keymgmt_gettable_params_fn ed448_gettable_params;
static OSSL_OP_keymgmt_has_fn ecx_has;
static OSSL_OP_keymgmt_import_fn ecx_import;
static OSSL_OP_keymgmt_import_types_fn ecx_imexport_types;
@ -207,6 +210,17 @@ static int ecx_get_params(void *key, OSSL_PARAM params[], int bits, int secbits,
return key_to_params(ecx, NULL, params);
}
static int ed_get_params(void *key, OSSL_PARAM params[])
{
OSSL_PARAM *p;
if ((p = OSSL_PARAM_locate(params,
OSSL_PKEY_PARAM_MANDATORY_DIGEST)) != NULL
&& !OSSL_PARAM_set_utf8_string(p, ""))
return 0;
return 1;
}
static int x25519_get_params(void *key, OSSL_PARAM params[])
{
return ecx_get_params(key, params, X25519_BITS, X25519_SECURITY_BITS,
@ -222,16 +236,27 @@ static int x448_get_params(void *key, OSSL_PARAM params[])
static int ed25519_get_params(void *key, OSSL_PARAM params[])
{
return ecx_get_params(key, params, ED25519_BITS, ED25519_SECURITY_BITS,
ED25519_KEYLEN);
ED25519_KEYLEN)
&& ed_get_params(key, params);
}
static int ed448_get_params(void *key, OSSL_PARAM params[])
{
return ecx_get_params(key, params, ED448_BITS, ED448_SECURITY_BITS,
ED448_KEYLEN);
ED448_KEYLEN)
&& ed_get_params(key, params);
}
static const OSSL_PARAM ecx_params[] = {
OSSL_PARAM_int(OSSL_PKEY_PARAM_BITS, NULL),
OSSL_PARAM_int(OSSL_PKEY_PARAM_SECURITY_BITS, NULL),
OSSL_PARAM_int(OSSL_PKEY_PARAM_MAX_SIZE, NULL),
OSSL_PARAM_utf8_string(OSSL_PKEY_PARAM_MANDATORY_DIGEST, NULL, 0),
ECX_KEY_TYPES(),
OSSL_PARAM_END
};
static const OSSL_PARAM ed_params[] = {
OSSL_PARAM_int(OSSL_PKEY_PARAM_BITS, NULL),
OSSL_PARAM_int(OSSL_PKEY_PARAM_SECURITY_BITS, NULL),
OSSL_PARAM_int(OSSL_PKEY_PARAM_MAX_SIZE, NULL),
@ -239,11 +264,26 @@ static const OSSL_PARAM ecx_params[] = {
OSSL_PARAM_END
};
static const OSSL_PARAM *ecx_gettable_params(void)
static const OSSL_PARAM *x25519_gettable_params(void)
{
return ecx_params;
}
static const OSSL_PARAM *x448_gettable_params(void)
{
return ecx_params;
}
static const OSSL_PARAM *ed25519_gettable_params(void)
{
return ed_params;
}
static const OSSL_PARAM *ed448_gettable_params(void)
{
return ed_params;
}
static void *ecx_gen_init(void *provctx, int selection, ECX_KEY_TYPE type)
{
OPENSSL_CTX *libctx = PROV_LIBRARY_CONTEXT_OF(provctx);
@ -383,7 +423,7 @@ static void ecx_gen_cleanup(void *genctx)
{ OSSL_FUNC_KEYMGMT_NEW, (void (*)(void))alg##_new_key }, \
{ OSSL_FUNC_KEYMGMT_FREE, (void (*)(void))ecx_key_free }, \
{ OSSL_FUNC_KEYMGMT_GET_PARAMS, (void (*) (void))alg##_get_params }, \
{ OSSL_FUNC_KEYMGMT_GETTABLE_PARAMS, (void (*) (void))ecx_gettable_params }, \
{ OSSL_FUNC_KEYMGMT_GETTABLE_PARAMS, (void (*) (void))alg##_gettable_params }, \
{ OSSL_FUNC_KEYMGMT_HAS, (void (*)(void))ecx_has }, \
{ OSSL_FUNC_KEYMGMT_IMPORT, (void (*)(void))ecx_import }, \
{ OSSL_FUNC_KEYMGMT_IMPORT_TYPES, (void (*)(void))ecx_imexport_types }, \