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PROV: Add SM2 encoders and decoders, as well as support functionality

Browse Source 
The EC KEYMGMT implementation handled SM2 as well, except what's
needed to support decoding: loading functions for both EC and SM2 that
checks for the presence or absence of the SM2 curve the same way as
the EC / SM2 import functions.

Reviewed-by: Tomas Mraz <tomas@openssl.org>
Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/14028)
master
Richard Levitte 2 years ago
parent 58f422f6f4
commit f2db0528d8
7 changed files with 119 additions and 9 deletions
Show Stats Download Patch File Download Diff File

4
providers/decoders.inc
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@ -65,6 +65,10 @@ DECODER_w_structure("X25519", der, PKCS8, x25519, yes),
DECODER_w_structure("X25519", der, SubjectPublicKeyInfo, x25519, yes),
DECODER_w_structure("X448", der, PKCS8, x448, yes),
DECODER_w_structure("X448", der, SubjectPublicKeyInfo, x448, yes),
# ifndef OPENSSL_NO_SM2
DECODER_w_structure("SM2", der, PKCS8, sm2, yes),
DECODER_w_structure("SM2", der, SubjectPublicKeyInfo, sm2, yes),
# endif
#endif
DECODER_w_structure("RSA", der, PKCS8, rsa, yes),
DECODER_w_structure("RSA", der, SubjectPublicKeyInfo, rsa, yes),

14
providers/encoders.inc
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@ -60,6 +60,9 @@ ENCODER_TEXT("ED25519", ed25519, yes),
ENCODER_TEXT("ED448", ed448, yes),
ENCODER_TEXT("X25519", x25519, yes),
ENCODER_TEXT("X448", x448, yes),
# ifndef OPENSSL_NO_SM2
ENCODER_TEXT("SM2", sm2, yes),
# endif
#endif
/*
@ -104,6 +107,10 @@ ENCODER_w_structure("DSA", dsa, yes, pem, type_specific),
/* EC only supports keypair and parameters output. */
ENCODER_w_structure("EC", ec, yes, der, type_specific_no_pub),
ENCODER_w_structure("EC", ec, yes, pem, type_specific_no_pub),
# ifndef OPENSSL_NO_SM2
ENCODER_w_structure("SM2", sm2, yes, der, type_specific_no_pub),
ENCODER_w_structure("SM2", sm2, yes, pem, type_specific_no_pub),
# endif
#endif
/*
@ -177,6 +184,13 @@ ENCODER_w_structure("ED448", ed448, yes, der, PKCS8),
ENCODER_w_structure("ED448", ed448, yes, pem, PKCS8),
ENCODER_w_structure("ED448", ed448, yes, der, SubjectPublicKeyInfo),
ENCODER_w_structure("ED448", ed448, yes, pem, SubjectPublicKeyInfo),
# ifndef OPENSSL_NO_SM2
ENCODER_w_structure("SM2", sm2, yes, der, PKCS8),
ENCODER_w_structure("SM2", sm2, yes, pem, PKCS8),
ENCODER_w_structure("SM2", sm2, yes, der, SubjectPublicKeyInfo),
ENCODER_w_structure("SM2", sm2, yes, pem, SubjectPublicKeyInfo),
# endif
#endif
/*

14
providers/implementations/encode_decode/decode_der2key.c
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@ -504,6 +504,16 @@ static void ecx_key_adjust(void *key, struct der2key_ctx_st *ctx)
# define x448_d2i_key_params NULL
# define x448_free (free_key_fn *)ecx_key_free
# define x448_adjust ecx_key_adjust
# ifndef OPENSSL_NO_SM2
# define sm2_evp_type EVP_PKEY_SM2
# define sm2_evp_extract (extract_key_fn *)EVP_PKEY_get1_EC_KEY
# define sm2_d2i_private_key (d2i_of_void *)d2i_ECPrivateKey
# define sm2_d2i_public_key NULL
# define sm2_d2i_key_params (d2i_of_void *)d2i_ECParameters
# define sm2_free (free_key_fn *)EC_KEY_free
# define sm2_adjust ec_adjust
# endif
#endif
/* ---------------------------------------------------------------------- */
@ -762,6 +772,10 @@ MAKE_DECODER("ED25519", ed25519, ecx, PKCS8);
MAKE_DECODER("ED25519", ed25519, ecx, SubjectPublicKeyInfo);
MAKE_DECODER("ED448", ed448, ecx, PKCS8);
MAKE_DECODER("ED448", ed448, ecx, SubjectPublicKeyInfo);
# ifndef OPENSSL_NO_SM2
MAKE_DECODER("SM2", sm2, ec, PKCS8);
MAKE_DECODER("SM2", sm2, ec, SubjectPublicKeyInfo);
# endif
#endif
MAKE_DECODER("RSA", rsa, rsa, PKCS8);
MAKE_DECODER("RSA", rsa, rsa, SubjectPublicKeyInfo);

26
providers/implementations/encode_decode/encode_key2any.c
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@ -655,6 +655,12 @@ static int ec_pkcs8_priv_to_der(const void *veckey, unsigned char **pder)
# define ec_evp_type EVP_PKEY_EC
# define ec_input_type "EC"
# define ec_pem_type "EC"
# ifndef OPENSSL_NO_SM2
# define sm2_evp_type EVP_PKEY_SM2
# define sm2_input_type "SM2"
# define sm2_pem_type "SM2"
# endif
#endif
/* ---------------------------------------------------------------------- */
@ -1139,6 +1145,10 @@ static int key2any_encode(struct key2any_ctx_st *ctx, OSSL_CORE_BIO *cout,
#define DO_EC_selection_mask DO_type_specific_selection_mask
#define DO_EC(impl, type, output) DO_type_specific(impl, type, output)
#define SM2_output_structure "sm2"
#define DO_SM2_selection_mask DO_type_specific_selection_mask
#define DO_SM2(impl, type, output) DO_type_specific(impl, type, output)
/* PKCS#1 defines a structure for RSA private and public keys */
#define PKCS1_output_structure "pkcs1"
#define DO_PKCS1_selection_mask DO_RSA_selection_mask
@ -1280,6 +1290,9 @@ MAKE_ENCODER(dsa, dsa, EVP_PKEY_DSA, type_specific, der);
#endif
#ifndef OPENSSL_NO_EC
MAKE_ENCODER(ec, ec, EVP_PKEY_EC, type_specific_no_pub, der);
# ifndef OPENSSL_NO_SM2
MAKE_ENCODER(sm2, ec, EVP_PKEY_EC, type_specific_no_pub, der);
# endif
#endif
/*
@ -1296,6 +1309,9 @@ MAKE_ENCODER(dsa, dsa, EVP_PKEY_DSA, type_specific, pem);
#endif
#ifndef OPENSSL_NO_EC
MAKE_ENCODER(ec, ec, EVP_PKEY_EC, type_specific_no_pub, pem);
# ifndef OPENSSL_NO_SM2
MAKE_ENCODER(sm2, ec, EVP_PKEY_EC, type_specific_no_pub, pem);
# endif
#endif
/*
@ -1335,6 +1351,12 @@ MAKE_ENCODER(ec, ec, EVP_PKEY_EC, PKCS8, der);
MAKE_ENCODER(ec, ec, EVP_PKEY_EC, PKCS8, pem);
MAKE_ENCODER(ec, ec, EVP_PKEY_EC, SubjectPublicKeyInfo, der);
MAKE_ENCODER(ec, ec, EVP_PKEY_EC, SubjectPublicKeyInfo, pem);
# ifndef OPENSSL_NO_SM2
MAKE_ENCODER(sm2, ec, EVP_PKEY_EC, PKCS8, der);
MAKE_ENCODER(sm2, ec, EVP_PKEY_EC, PKCS8, pem);
MAKE_ENCODER(sm2, ec, EVP_PKEY_EC, SubjectPublicKeyInfo, der);
MAKE_ENCODER(sm2, ec, EVP_PKEY_EC, SubjectPublicKeyInfo, pem);
# endif
MAKE_ENCODER(ed25519, ecx, EVP_PKEY_ED25519, PKCS8, der);
MAKE_ENCODER(ed25519, ecx, EVP_PKEY_ED25519, PKCS8, pem);
MAKE_ENCODER(ed25519, ecx, EVP_PKEY_ED25519, SubjectPublicKeyInfo, der);
@ -1376,6 +1398,10 @@ MAKE_ENCODER(dsa, dsa, EVP_PKEY_DSA, DSA, pem);
#ifndef OPENSSL_NO_EC
MAKE_ENCODER(ec, ec, EVP_PKEY_EC, EC, der);
MAKE_ENCODER(ec, ec, EVP_PKEY_EC, EC, pem);
# ifndef OPENSSL_NO_SM2
MAKE_ENCODER(sm2, ec, EVP_PKEY_EC, SM2, der);
MAKE_ENCODER(sm2, ec, EVP_PKEY_EC, SM2, pem);
# endif
#endif
/* Convenience structure names */

7
providers/implementations/encode_decode/encode_key2text.c
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@ -547,6 +547,10 @@ err:
}
# define ec_input_type "EC"
# ifndef OPENSSL_NO_SM2
# define sm2_input_type "SM2"
# endif
#endif
/* ---------------------------------------------------------------------- */
@ -906,6 +910,9 @@ MAKE_TEXT_ENCODER(dsa, dsa);
#endif
#ifndef OPENSSL_NO_EC
MAKE_TEXT_ENCODER(ec, ec);
# ifndef OPENSSL_NO_SM2
MAKE_TEXT_ENCODER(sm2, ec);
# endif
MAKE_TEXT_ENCODER(ed25519, ecx);
MAKE_TEXT_ENCODER(ed448, ecx);
MAKE_TEXT_ENCODER(x25519, ecx);

17
providers/implementations/include/prov/implementations.h
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@ -390,6 +390,18 @@ extern const OSSL_DISPATCH ossl_ec_to_type_specific_no_pub_pem_encoder_functions
extern const OSSL_DISPATCH ossl_ec_to_type_specific_no_pub_der_encoder_functions[];
extern const OSSL_DISPATCH ossl_ec_to_text_encoder_functions[];
#ifndef OPENSSL_NO_SM2
extern const OSSL_DISPATCH ossl_sm2_to_SM2_der_encoder_functions[];
extern const OSSL_DISPATCH ossl_sm2_to_SM2_pem_encoder_functions[];
extern const OSSL_DISPATCH ossl_sm2_to_PKCS8_der_encoder_functions[];
extern const OSSL_DISPATCH ossl_sm2_to_PKCS8_pem_encoder_functions[];
extern const OSSL_DISPATCH ossl_sm2_to_SubjectPublicKeyInfo_der_encoder_functions[];
extern const OSSL_DISPATCH ossl_sm2_to_SubjectPublicKeyInfo_pem_encoder_functions[];
extern const OSSL_DISPATCH ossl_sm2_to_type_specific_no_pub_pem_encoder_functions[];
extern const OSSL_DISPATCH ossl_sm2_to_type_specific_no_pub_der_encoder_functions[];
extern const OSSL_DISPATCH ossl_sm2_to_text_encoder_functions[];
#endif
extern const OSSL_DISPATCH ossl_ed25519_to_PKCS8_der_encoder_functions[];
extern const OSSL_DISPATCH ossl_ed25519_to_PKCS8_pem_encoder_functions[];
extern const OSSL_DISPATCH ossl_ed25519_to_SubjectPublicKeyInfo_der_encoder_functions[];
@ -453,6 +465,11 @@ extern const OSSL_DISPATCH ossl_SubjectPublicKeyInfo_der_to_ed25519_decoder_func
extern const OSSL_DISPATCH ossl_PKCS8_der_to_ed448_decoder_functions[];
extern const OSSL_DISPATCH ossl_SubjectPublicKeyInfo_der_to_ed448_decoder_functions[];
#ifndef OPENSSL_NO_SM2
extern const OSSL_DISPATCH ossl_PKCS8_der_to_sm2_decoder_functions[];
extern const OSSL_DISPATCH ossl_SubjectPublicKeyInfo_der_to_sm2_decoder_functions[];
#endif
extern const OSSL_DISPATCH ossl_PKCS8_der_to_rsa_decoder_functions[];
extern const OSSL_DISPATCH ossl_SubjectPublicKeyInfo_der_to_rsa_decoder_functions[];
extern const OSSL_DISPATCH ossl_type_specific_keypair_der_to_rsa_decoder_functions[];

46
providers/implementations/keymgmt/ec_kmgmt.c
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@ -337,12 +337,25 @@ static int ec_match(const void *keydata1, const void *keydata2, int selection)
return ok;
}
static int common_check_sm2(const EC_KEY *ec, int sm2_wanted)
{
const EC_GROUP *ecg = NULL;
/*
* sm2_wanted: import the keys or domparams only on SM2 Curve
* !sm2_wanted: import the keys or domparams only not on SM2 Curve
*/
if ((ecg = EC_KEY_get0_group(ec)) == NULL
|| (sm2_wanted ^ (EC_GROUP_get_curve_name(ecg) == NID_sm2)))
return 0;
return 1;
}
static
int common_import(void *keydata, int selection, const OSSL_PARAM params[],
int sm2_curve)
int sm2_wanted)
{
EC_KEY *ec = keydata;
const EC_GROUP *ecg = NULL;
int ok = 1;
if (!ossl_prov_is_running() || ec == NULL)
@ -366,12 +379,7 @@ int common_import(void *keydata, int selection, const OSSL_PARAM params[],
ok = ok && ec_group_fromdata(ec, params);
/*
* sm2_curve: import the keys or domparams only on SM2 Curve
* !sm2_curve: import the keys or domparams only not on SM2 Curve
*/
if ((ecg = EC_KEY_get0_group(ec)) == NULL
|| (sm2_curve ^ (EC_GROUP_get_curve_name(ecg) == NID_sm2)))
if (!common_check_sm2(ec, sm2_wanted))
return 0;
if ((selection & OSSL_KEYMGMT_SELECT_KEYPAIR) != 0) {
@ -1267,13 +1275,18 @@ static void ec_gen_cleanup(void *genctx)
OPENSSL_free(gctx);
}
void *ec_load(const void *reference, size_t reference_sz)
static void *common_load(const void *reference, size_t reference_sz,
int sm2_wanted)
{
EC_KEY *ec = NULL;
if (ossl_prov_is_running() && reference_sz == sizeof(ec)) {
/* The contents of the reference is the address to our object */
ec = *(EC_KEY **)reference;
if (!common_check_sm2(ec, sm2_wanted))
return NULL;
/* We grabbed, so we detach it */
*(EC_KEY **)reference = NULL;
return ec;
@ -1281,6 +1294,20 @@ void *ec_load(const void *reference, size_t reference_sz)
return NULL;
}
static void *ec_load(const void *reference, size_t reference_sz)
{
return common_load(reference, reference_sz, 0);
}
#ifndef FIPS_MODULE
# ifndef OPENSSL_NO_SM2
static void *sm2_load(const void *reference, size_t reference_sz)
{
return common_load(reference, reference_sz, 1);
}
# endif
#endif
const OSSL_DISPATCH ossl_ec_keymgmt_functions[] = {
{ OSSL_FUNC_KEYMGMT_NEW, (void (*)(void))ec_newdata },
{ OSSL_FUNC_KEYMGMT_GEN_INIT, (void (*)(void))ec_gen_init },
@ -1321,6 +1348,7 @@ const OSSL_DISPATCH ossl_sm2_keymgmt_functions[] = {
(void (*)(void))ec_gen_settable_params },
{ OSSL_FUNC_KEYMGMT_GEN, (void (*)(void))sm2_gen },
{ OSSL_FUNC_KEYMGMT_GEN_CLEANUP, (void (*)(void))ec_gen_cleanup },
{ OSSL_FUNC_KEYMGMT_LOAD, (void (*)(void))sm2_load },
{ OSSL_FUNC_KEYMGMT_FREE, (void (*)(void))ec_freedata },
{ OSSL_FUNC_KEYMGMT_GET_PARAMS, (void (*) (void))sm2_get_params },
{ OSSL_FUNC_KEYMGMT_GETTABLE_PARAMS, (void (*) (void))sm2_gettable_params },

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