| /* |
| * Copyright 2020 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 |
| * in the file LICENSE in the source distribution or at |
| * https://www.openssl.org/source/license.html |
| */ |
| |
| /* |
| * Low level APIs are deprecated for public use, but still ok for internal use. |
| */ |
| #include "internal/deprecated.h" |
| |
| #include <openssl/core.h> |
| #include <openssl/core_dispatch.h> |
| #include <openssl/core_names.h> |
| #include <openssl/crypto.h> |
| #include <openssl/params.h> |
| #include <openssl/asn1.h> |
| #include <openssl/err.h> |
| #include <openssl/pem.h> |
| #include <openssl/x509.h> |
| #include <openssl/pkcs12.h> /* PKCS8_encrypt() */ |
| #include <openssl/dh.h> |
| #include <openssl/dsa.h> |
| #include <openssl/ec.h> |
| #include "internal/passphrase.h" |
| #include "internal/cryptlib.h" |
| #include "crypto/ecx.h" |
| #include "crypto/rsa.h" |
| #include "prov/implementations.h" |
| #include "prov/providercommonerr.h" |
| #include "prov/bio.h" |
| #include "prov/provider_ctx.h" |
| #include "prov/der_rsa.h" |
| #include "endecoder_local.h" |
| |
| struct key2any_ctx_st { |
| PROV_CTX *provctx; |
| |
| /* Set to 1 if intending to encrypt/decrypt, otherwise 0 */ |
| int cipher_intent; |
| |
| EVP_CIPHER *cipher; |
| |
| struct ossl_passphrase_data_st pwdata; |
| }; |
| |
| typedef int check_key_type_fn(const void *key, int nid); |
| typedef int key_to_paramstring_fn(const void *key, int nid, |
| void **str, int *strtype); |
| typedef int key_to_der_fn(BIO *out, const void *key, int key_nid, |
| key_to_paramstring_fn *p2s, i2d_of_void *k2d, |
| struct key2any_ctx_st *ctx); |
| typedef int write_bio_of_void_fn(BIO *bp, const void *x); |
| |
| static PKCS8_PRIV_KEY_INFO *key_to_p8info(const void *key, int key_nid, |
| void *params, int params_type, |
| i2d_of_void *k2d) |
| { |
| /* der, derlen store the key DER output and its length */ |
| unsigned char *der = NULL; |
| int derlen; |
| /* The final PKCS#8 info */ |
| PKCS8_PRIV_KEY_INFO *p8info = NULL; |
| |
| |
| if ((p8info = PKCS8_PRIV_KEY_INFO_new()) == NULL |
| || (derlen = k2d(key, &der)) <= 0 |
| || !PKCS8_pkey_set0(p8info, OBJ_nid2obj(key_nid), 0, |
| params_type, params, der, derlen)) { |
| ERR_raise(ERR_LIB_PROV, ERR_R_MALLOC_FAILURE); |
| PKCS8_PRIV_KEY_INFO_free(p8info); |
| OPENSSL_free(der); |
| p8info = NULL; |
| } |
| |
| return p8info; |
| } |
| |
| static X509_SIG *p8info_to_encp8(PKCS8_PRIV_KEY_INFO *p8info, |
| struct key2any_ctx_st *ctx) |
| { |
| X509_SIG *p8 = NULL; |
| char kstr[PEM_BUFSIZE]; |
| size_t klen = 0; |
| |
| if (ctx->cipher == NULL) |
| return NULL; |
| |
| if (!ossl_pw_get_passphrase(kstr, sizeof(kstr), &klen, NULL, 1, |
| &ctx->pwdata)) { |
| ERR_raise(ERR_LIB_PROV, PROV_R_READ_KEY); |
| return NULL; |
| } |
| /* First argument == -1 means "standard" */ |
| p8 = PKCS8_encrypt(-1, ctx->cipher, kstr, klen, NULL, 0, 0, p8info); |
| OPENSSL_cleanse(kstr, klen); |
| return p8; |
| } |
| |
| static X509_SIG *key_to_encp8(const void *key, int key_nid, |
| void *params, int params_type, |
| i2d_of_void *k2d, struct key2any_ctx_st *ctx) |
| { |
| PKCS8_PRIV_KEY_INFO *p8info = |
| key_to_p8info(key, key_nid, params, params_type, k2d); |
| X509_SIG *p8 = p8info_to_encp8(p8info, ctx); |
| |
| PKCS8_PRIV_KEY_INFO_free(p8info); |
| return p8; |
| } |
| |
| static X509_PUBKEY *key_to_pubkey(const void *key, int key_nid, |
| void *params, int params_type, |
| i2d_of_void k2d) |
| { |
| /* der, derlen store the key DER output and its length */ |
| unsigned char *der = NULL; |
| int derlen; |
| /* The final X509_PUBKEY */ |
| X509_PUBKEY *xpk = NULL; |
| |
| |
| if ((xpk = X509_PUBKEY_new()) == NULL |
| || (derlen = k2d(key, &der)) <= 0 |
| || !X509_PUBKEY_set0_param(xpk, OBJ_nid2obj(key_nid), |
| params_type, params, der, derlen)) { |
| ERR_raise(ERR_LIB_PROV, ERR_R_MALLOC_FAILURE); |
| X509_PUBKEY_free(xpk); |
| OPENSSL_free(der); |
| xpk = NULL; |
| } |
| |
| return xpk; |
| } |
| |
| static int key_to_der_pkcs8_bio(BIO *out, const void *key, int key_nid, |
| key_to_paramstring_fn *p2s, i2d_of_void *k2d, |
| struct key2any_ctx_st *ctx) |
| { |
| int ret = 0; |
| void *str = NULL; |
| int strtype = V_ASN1_UNDEF; |
| |
| if (p2s != NULL && !p2s(key, key_nid, &str, &strtype)) |
| return 0; |
| |
| if (ctx->cipher_intent) { |
| X509_SIG *p8 = key_to_encp8(key, key_nid, str, strtype, k2d, ctx); |
| |
| if (p8 != NULL) |
| ret = i2d_PKCS8_bio(out, p8); |
| |
| X509_SIG_free(p8); |
| } else { |
| PKCS8_PRIV_KEY_INFO *p8info = |
| key_to_p8info(key, key_nid, str, strtype, k2d); |
| |
| if (p8info != NULL) |
| ret = i2d_PKCS8_PRIV_KEY_INFO_bio(out, p8info); |
| |
| PKCS8_PRIV_KEY_INFO_free(p8info); |
| } |
| |
| return ret; |
| } |
| |
| static int key_to_pem_pkcs8_bio(BIO *out, const void *key, int key_nid, |
| key_to_paramstring_fn *p2s, i2d_of_void *k2d, |
| struct key2any_ctx_st *ctx) |
| { |
| int ret = 0; |
| void *str = NULL; |
| int strtype = V_ASN1_UNDEF; |
| |
| if (p2s != NULL && !p2s(key, key_nid, &str, &strtype)) |
| return 0; |
| |
| if (ctx->cipher_intent) { |
| X509_SIG *p8 = key_to_encp8(key, key_nid, str, strtype, k2d, ctx); |
| |
| if (p8 != NULL) |
| ret = PEM_write_bio_PKCS8(out, p8); |
| |
| X509_SIG_free(p8); |
| } else { |
| PKCS8_PRIV_KEY_INFO *p8info = |
| key_to_p8info(key, key_nid, str, strtype, k2d); |
| |
| if (p8info != NULL) |
| ret = PEM_write_bio_PKCS8_PRIV_KEY_INFO(out, p8info); |
| |
| PKCS8_PRIV_KEY_INFO_free(p8info); |
| } |
| |
| return ret; |
| } |
| |
| static int key_to_der_pubkey_bio(BIO *out, const void *key, int key_nid, |
| key_to_paramstring_fn *p2s, i2d_of_void *k2d, |
| struct key2any_ctx_st *ctx) |
| { |
| int ret = 0; |
| void *str = NULL; |
| int strtype = V_ASN1_UNDEF; |
| X509_PUBKEY *xpk = NULL; |
| |
| if (p2s != NULL && !p2s(key, key_nid, &str, &strtype)) |
| return 0; |
| |
| xpk = key_to_pubkey(key, key_nid, str, strtype, k2d); |
| |
| if (xpk != NULL) |
| ret = i2d_X509_PUBKEY_bio(out, xpk); |
| |
| /* Also frees |str| */ |
| X509_PUBKEY_free(xpk); |
| return ret; |
| } |
| |
| static int key_to_pem_pubkey_bio(BIO *out, const void *key, int key_nid, |
| key_to_paramstring_fn *p2s, i2d_of_void *k2d, |
| struct key2any_ctx_st *ctx) |
| { |
| int ret = 0; |
| void *str = NULL; |
| int strtype = V_ASN1_UNDEF; |
| X509_PUBKEY *xpk = NULL; |
| |
| if (p2s != NULL && !p2s(key, key_nid, &str, &strtype)) |
| return 0; |
| |
| xpk = key_to_pubkey(key, key_nid, str, strtype, k2d); |
| |
| if (xpk != NULL) |
| ret = PEM_write_bio_X509_PUBKEY(out, xpk); |
| |
| /* Also frees |str| */ |
| X509_PUBKEY_free(xpk); |
| return ret; |
| } |
| |
| #define der_output_type "DER" |
| #define pem_output_type "PEM" |
| |
| /* ---------------------------------------------------------------------- */ |
| |
| #ifndef OPENSSL_NO_DH |
| static int prepare_dh_params(const void *dh, int nid, |
| void **pstr, int *pstrtype) |
| { |
| ASN1_STRING *params = ASN1_STRING_new(); |
| |
| if (params == NULL) { |
| ERR_raise(ERR_LIB_PROV, ERR_R_MALLOC_FAILURE); |
| return 0; |
| } |
| |
| if (nid == EVP_PKEY_DHX) |
| params->length = i2d_DHxparams(dh, ¶ms->data); |
| else |
| params->length = i2d_DHparams(dh, ¶ms->data); |
| |
| if (params->length <= 0) { |
| ERR_raise(ERR_LIB_PROV, ERR_R_MALLOC_FAILURE); |
| ASN1_STRING_free(params); |
| return 0; |
| } |
| params->type = V_ASN1_SEQUENCE; |
| |
| *pstr = params; |
| *pstrtype = V_ASN1_SEQUENCE; |
| return 1; |
| } |
| |
| static int dh_pub_to_der(const void *dh, unsigned char **pder) |
| { |
| const BIGNUM *bn = NULL; |
| ASN1_INTEGER *pub_key = NULL; |
| int ret; |
| |
| if ((bn = DH_get0_pub_key(dh)) == NULL) { |
| ERR_raise(ERR_LIB_PROV, PROV_R_NOT_A_PUBLIC_KEY); |
| return 0; |
| } |
| if ((pub_key = BN_to_ASN1_INTEGER(bn, NULL)) == NULL) { |
| ERR_raise(ERR_LIB_PROV, PROV_R_BN_ERROR); |
| return 0; |
| } |
| |
| ret = i2d_ASN1_INTEGER(pub_key, pder); |
| |
| ASN1_STRING_clear_free(pub_key); |
| return ret; |
| } |
| |
| static int dh_priv_to_der(const void *dh, unsigned char **pder) |
| { |
| const BIGNUM *bn = NULL; |
| ASN1_INTEGER *priv_key = NULL; |
| int ret; |
| |
| if ((bn = DH_get0_priv_key(dh)) == NULL) { |
| ERR_raise(ERR_LIB_PROV, PROV_R_NOT_A_PRIVATE_KEY); |
| return 0; |
| } |
| if ((priv_key = BN_to_ASN1_INTEGER(bn, NULL)) == NULL) { |
| ERR_raise(ERR_LIB_PROV, PROV_R_BN_ERROR); |
| return 0; |
| } |
| |
| ret = i2d_ASN1_INTEGER(priv_key, pder); |
| |
| ASN1_STRING_clear_free(priv_key); |
| return ret; |
| } |
| |
| static int dh_params_to_der_bio(BIO *out, const void *key) |
| { |
| int type = |
| DH_test_flags(key, DH_FLAG_TYPE_DHX) ? EVP_PKEY_DHX : EVP_PKEY_DH; |
| |
| if (type == EVP_PKEY_DH) |
| return i2d_DHparams_bio(out, key); |
| return i2d_DHxparams_bio(out, key); |
| } |
| |
| static int dh_params_to_pem_bio(BIO *out, const void *key) |
| { |
| int type = |
| DH_test_flags(key, DH_FLAG_TYPE_DHX) ? EVP_PKEY_DHX : EVP_PKEY_DH; |
| |
| if (type == EVP_PKEY_DH) |
| return PEM_write_bio_DHparams(out, key); |
| |
| return PEM_write_bio_DHxparams(out, key); |
| } |
| |
| static int dh_check_key_type(const void *key, int expected_type) |
| { |
| int type = |
| DH_test_flags(key, DH_FLAG_TYPE_DHX) ? EVP_PKEY_DHX : EVP_PKEY_DH; |
| |
| return type == expected_type; |
| } |
| |
| # define dh_evp_type EVP_PKEY_DH |
| # define dhx_evp_type EVP_PKEY_DHX |
| # define dh_input_type "DH" |
| # define dhx_input_type "DHX" |
| #endif |
| |
| /* ---------------------------------------------------------------------- */ |
| |
| #ifndef OPENSSL_NO_DSA |
| static int prepare_some_dsa_params(const void *dsa, int nid, |
| void **pstr, int *pstrtype) |
| { |
| ASN1_STRING *params = ASN1_STRING_new(); |
| |
| if (params == NULL) { |
| ERR_raise(ERR_LIB_PROV, ERR_R_MALLOC_FAILURE); |
| return 0; |
| } |
| |
| params->length = i2d_DSAparams(dsa, ¶ms->data); |
| |
| if (params->length <= 0) { |
| ERR_raise(ERR_LIB_PROV, ERR_R_MALLOC_FAILURE); |
| ASN1_STRING_free(params); |
| return 0; |
| } |
| |
| *pstrtype = V_ASN1_SEQUENCE; |
| *pstr = params; |
| return 1; |
| } |
| |
| static int prepare_all_dsa_params(const void *dsa, int nid, |
| void **pstr, int *pstrtype) |
| { |
| const BIGNUM *p = DSA_get0_p(dsa); |
| const BIGNUM *q = DSA_get0_q(dsa); |
| const BIGNUM *g = DSA_get0_g(dsa); |
| |
| if (p != NULL && q != NULL && g != NULL) |
| return prepare_some_dsa_params(dsa, nid, pstr, pstrtype); |
| |
| *pstr = NULL; |
| *pstrtype = V_ASN1_UNDEF; |
| return 1; |
| } |
| |
| static int prepare_dsa_params(const void *dsa, int nid, |
| void **pstr, int *pstrtype) |
| { |
| /* |
| * TODO(v3.0) implement setting save_parameters, see dsa_pub_encode() |
| * in crypto/dsa/dsa_ameth.c |
| */ |
| int save_parameters = 1; |
| |
| return save_parameters |
| ? prepare_all_dsa_params(dsa, nid, pstr, pstrtype) |
| : prepare_some_dsa_params(dsa, nid, pstr, pstrtype); |
| } |
| |
| static int dsa_pub_to_der(const void *dsa, unsigned char **pder) |
| { |
| const BIGNUM *bn = NULL; |
| ASN1_INTEGER *pub_key = NULL; |
| int ret; |
| |
| if ((bn = DSA_get0_pub_key(dsa)) == NULL) { |
| ERR_raise(ERR_LIB_PROV, PROV_R_NOT_A_PUBLIC_KEY); |
| return 0; |
| } |
| if ((pub_key = BN_to_ASN1_INTEGER(bn, NULL)) == NULL) { |
| ERR_raise(ERR_LIB_PROV, PROV_R_BN_ERROR); |
| return 0; |
| } |
| |
| ret = i2d_ASN1_INTEGER(pub_key, pder); |
| |
| ASN1_STRING_clear_free(pub_key); |
| return ret; |
| } |
| |
| static int dsa_priv_to_der(const void *dsa, unsigned char **pder) |
| { |
| const BIGNUM *bn = NULL; |
| ASN1_INTEGER *priv_key = NULL; |
| int ret; |
| |
| if ((bn = DSA_get0_priv_key(dsa)) == NULL) { |
| ERR_raise(ERR_LIB_PROV, PROV_R_NOT_A_PRIVATE_KEY); |
| return 0; |
| } |
| if ((priv_key = BN_to_ASN1_INTEGER(bn, NULL)) == NULL) { |
| ERR_raise(ERR_LIB_PROV, PROV_R_BN_ERROR); |
| return 0; |
| } |
| |
| ret = i2d_ASN1_INTEGER(priv_key, pder); |
| |
| ASN1_STRING_clear_free(priv_key); |
| return ret; |
| } |
| |
| static int dsa_params_to_der_bio(BIO *out, const void *key) |
| { |
| return i2d_DSAparams_bio(out, key); |
| } |
| |
| static int dsa_params_to_pem_bio(BIO *out, const void *key) |
| { |
| return PEM_write_bio_DSAparams(out, key); |
| } |
| |
| # define dsa_check_key_type NULL |
| # define dsa_evp_type EVP_PKEY_DSA |
| # define dsa_input_type "DSA" |
| #endif |
| |
| /* ---------------------------------------------------------------------- */ |
| |
| #ifndef OPENSSL_NO_EC |
| static int prepare_ec_explicit_params(const void *eckey, |
| void **pstr, int *pstrtype) |
| { |
| ASN1_STRING *params = ASN1_STRING_new(); |
| |
| if (params == NULL) { |
| ERR_raise(ERR_LIB_PROV, ERR_R_MALLOC_FAILURE); |
| return 0; |
| } |
| |
| params->length = i2d_ECParameters(eckey, ¶ms->data); |
| if (params->length <= 0) { |
| ERR_raise(ERR_LIB_PROV, ERR_R_MALLOC_FAILURE); |
| ASN1_STRING_free(params); |
| return 0; |
| } |
| |
| *pstrtype = V_ASN1_SEQUENCE; |
| *pstr = params; |
| return 1; |
| } |
| |
| static int prepare_ec_params(const void *eckey, int nid, |
| void **pstr, int *pstrtype) |
| { |
| int curve_nid; |
| const EC_GROUP *group = EC_KEY_get0_group(eckey); |
| ASN1_OBJECT *params = NULL; |
| |
| if (group == NULL) |
| return 0; |
| curve_nid = EC_GROUP_get_curve_name(group); |
| if (curve_nid != NID_undef) { |
| params = OBJ_nid2obj(curve_nid); |
| if (params == NULL) |
| return 0; |
| } |
| |
| if (curve_nid != NID_undef |
| && (EC_GROUP_get_asn1_flag(group) & OPENSSL_EC_NAMED_CURVE)) { |
| if (OBJ_length(params) == 0) { |
| /* Some curves might not have an associated OID */ |
| ERR_raise(ERR_LIB_PROV, PROV_R_MISSING_OID); |
| ASN1_OBJECT_free(params); |
| return 0; |
| } |
| *pstr = params; |
| *pstrtype = V_ASN1_OBJECT; |
| return 1; |
| } else { |
| return prepare_ec_explicit_params(eckey, pstr, pstrtype); |
| } |
| } |
| |
| static int ec_params_to_der_bio(BIO *out, const void *eckey) |
| { |
| return i2d_ECPKParameters_bio(out, EC_KEY_get0_group(eckey)); |
| } |
| |
| static int ec_params_to_pem_bio(BIO *out, const void *eckey) |
| { |
| return PEM_write_bio_ECPKParameters(out, EC_KEY_get0_group(eckey)); |
| } |
| |
| static int ec_pub_to_der(const void *eckey, unsigned char **pder) |
| { |
| return i2o_ECPublicKey(eckey, pder); |
| } |
| |
| static int ec_priv_to_der(const void *veckey, unsigned char **pder) |
| { |
| EC_KEY *eckey = (EC_KEY *)veckey; |
| unsigned int old_flags; |
| int ret = 0; |
| |
| /* |
| * For PKCS8 the curve name appears in the PKCS8_PRIV_KEY_INFO object |
| * as the pkeyalg->parameter field. (For a named curve this is an OID) |
| * The pkey field is an octet string that holds the encoded |
| * ECPrivateKey SEQUENCE with the optional parameters field omitted. |
| * We omit this by setting the EC_PKEY_NO_PARAMETERS flag. |
| */ |
| old_flags = EC_KEY_get_enc_flags(eckey); /* save old flags */ |
| EC_KEY_set_enc_flags(eckey, old_flags | EC_PKEY_NO_PARAMETERS); |
| ret = i2d_ECPrivateKey(eckey, pder); |
| EC_KEY_set_enc_flags(eckey, old_flags); /* restore old flags */ |
| return ret; /* return the length of the der encoded data */ |
| } |
| |
| # define ec_check_key_type NULL |
| # define ec_evp_type EVP_PKEY_EC |
| # define ec_input_type "EC" |
| #endif |
| |
| /* ---------------------------------------------------------------------- */ |
| |
| #ifndef OPENSSL_NO_EC |
| # define prepare_ecx_params NULL |
| |
| static int ecx_pub_to_der(const void *vecxkey, unsigned char **pder) |
| { |
| const ECX_KEY *ecxkey = vecxkey; |
| unsigned char *keyblob; |
| |
| if (ecxkey == NULL) { |
| ERR_raise(ERR_LIB_PROV, ERR_R_PASSED_NULL_PARAMETER); |
| return 0; |
| } |
| |
| keyblob = OPENSSL_memdup(ecxkey->pubkey, ecxkey->keylen); |
| if (keyblob == NULL) { |
| ERR_raise(ERR_LIB_PROV, ERR_R_MALLOC_FAILURE); |
| return 0; |
| } |
| |
| *pder = keyblob; |
| return ecxkey->keylen; |
| } |
| |
| static int ecx_priv_to_der(const void *vecxkey, unsigned char **pder) |
| { |
| const ECX_KEY *ecxkey = vecxkey; |
| ASN1_OCTET_STRING oct; |
| int keybloblen; |
| |
| if (ecxkey == NULL || ecxkey->privkey == NULL) { |
| ERR_raise(ERR_LIB_PROV, ERR_R_PASSED_NULL_PARAMETER); |
| return 0; |
| } |
| |
| oct.data = ecxkey->privkey; |
| oct.length = ecxkey->keylen; |
| oct.flags = 0; |
| |
| keybloblen = i2d_ASN1_OCTET_STRING(&oct, pder); |
| if (keybloblen < 0) { |
| ERR_raise(ERR_LIB_PROV, ERR_R_MALLOC_FAILURE); |
| return 0; |
| } |
| |
| return keybloblen; |
| } |
| |
| # define ecx_params_to_der_bio NULL |
| # define ecx_params_to_pem_bio NULL |
| # define ecx_check_key_type NULL |
| |
| # define ed25519_evp_type EVP_PKEY_ED25519 |
| # define ed448_evp_type EVP_PKEY_ED448 |
| # define x25519_evp_type EVP_PKEY_X25519 |
| # define x448_evp_type EVP_PKEY_X448 |
| # define ed25519_input_type "ED25519" |
| # define ed448_input_type "ED448" |
| # define x25519_input_type "X25519" |
| # define x448_input_type "X448" |
| #endif |
| |
| /* ---------------------------------------------------------------------- */ |
| |
| /* |
| * Helper functions to prepare RSA-PSS params for encoding. We would |
| * have simply written the whole AlgorithmIdentifier, but existing libcrypto |
| * functionality doesn't allow that. |
| */ |
| |
| static int prepare_rsa_params(const void *rsa, int nid, |
| void **pstr, int *pstrtype) |
| { |
| const RSA_PSS_PARAMS_30 *pss = ossl_rsa_get0_pss_params_30((RSA *)rsa); |
| |
| *pstr = NULL; |
| |
| switch (RSA_test_flags(rsa, RSA_FLAG_TYPE_MASK)) { |
| case RSA_FLAG_TYPE_RSA: |
| /* If plain RSA, the parameters shall be NULL */ |
| *pstrtype = V_ASN1_NULL; |
| return 1; |
| case RSA_FLAG_TYPE_RSASSAPSS: |
| if (ossl_rsa_pss_params_30_is_unrestricted(pss)) { |
| *pstrtype = V_ASN1_UNDEF; |
| return 1; |
| } else { |
| ASN1_STRING *astr = NULL; |
| WPACKET pkt; |
| unsigned char *str = NULL; |
| size_t str_sz = 0; |
| int i; |
| |
| for (i = 0; i < 2; i++) { |
| switch (i) { |
| case 0: |
| if (!WPACKET_init_null_der(&pkt)) |
| goto err; |
| break; |
| case 1: |
| if ((str = OPENSSL_malloc(str_sz)) == NULL |
| || !WPACKET_init_der(&pkt, str, str_sz)) { |
| goto err; |
| } |
| break; |
| } |
| if (!ossl_DER_w_RSASSA_PSS_params(&pkt, -1, pss) |
| || !WPACKET_finish(&pkt) |
| || !WPACKET_get_total_written(&pkt, &str_sz)) |
| goto err; |
| WPACKET_cleanup(&pkt); |
| |
| /* |
| * If no PSS parameters are going to be written, there's no |
| * point going for another iteration. |
| * This saves us from getting |str| allocated just to have it |
| * immediately de-allocated. |
| */ |
| if (str_sz == 0) |
| break; |
| } |
| |
| if ((astr = ASN1_STRING_new()) == NULL) |
| goto err; |
| *pstrtype = V_ASN1_SEQUENCE; |
| ASN1_STRING_set0(astr, str, (int)str_sz); |
| *pstr = astr; |
| |
| return 1; |
| err: |
| OPENSSL_free(str); |
| return 0; |
| } |
| } |
| |
| /* Currently unsupported RSA key type */ |
| return 0; |
| } |
| |
| #define rsa_params_to_der_bio NULL |
| #define rsa_params_to_pem_bio NULL |
| #define rsa_priv_to_der (i2d_of_void *)i2d_RSAPrivateKey |
| #define rsa_pub_to_der (i2d_of_void *)i2d_RSAPublicKey |
| |
| static int rsa_check_key_type(const void *rsa, int expected_type) |
| { |
| switch (RSA_test_flags(rsa, RSA_FLAG_TYPE_MASK)) { |
| case RSA_FLAG_TYPE_RSA: |
| return expected_type == EVP_PKEY_RSA; |
| case RSA_FLAG_TYPE_RSASSAPSS: |
| return expected_type == EVP_PKEY_RSA_PSS; |
| } |
| |
| /* Currently unsupported RSA key type */ |
| return EVP_PKEY_NONE; |
| } |
| |
| #define rsa_evp_type EVP_PKEY_RSA |
| #define rsapss_evp_type EVP_PKEY_RSA_PSS |
| #define rsa_input_type "RSA" |
| #define rsapss_input_type "RSA-PSS" |
| |
| /* ---------------------------------------------------------------------- */ |
| |
| static OSSL_FUNC_decoder_newctx_fn key2any_newctx; |
| static OSSL_FUNC_decoder_freectx_fn key2any_freectx; |
| static OSSL_FUNC_decoder_gettable_params_fn key2any_gettable_params; |
| |
| static void *key2any_newctx(void *provctx) |
| { |
| struct key2any_ctx_st *ctx = OPENSSL_zalloc(sizeof(*ctx)); |
| |
| if (ctx != NULL) |
| ctx->provctx = provctx; |
| |
| return ctx; |
| } |
| |
| static void key2any_freectx(void *vctx) |
| { |
| struct key2any_ctx_st *ctx = vctx; |
| |
| ossl_pw_clear_passphrase_data(&ctx->pwdata); |
| EVP_CIPHER_free(ctx->cipher); |
| OPENSSL_free(ctx); |
| } |
| |
| static const OSSL_PARAM *key2any_gettable_params(void *provctx) |
| { |
| static const OSSL_PARAM gettables[] = { |
| { OSSL_ENCODER_PARAM_OUTPUT_TYPE, OSSL_PARAM_UTF8_PTR, NULL, 0, 0 }, |
| OSSL_PARAM_END, |
| }; |
| |
| return gettables; |
| } |
| |
| static int key2any_get_params(OSSL_PARAM params[], const char *input_type, |
| const char *output_type) |
| { |
| OSSL_PARAM *p; |
| |
| p = OSSL_PARAM_locate(params, OSSL_ENCODER_PARAM_INPUT_TYPE); |
| if (p != NULL && !OSSL_PARAM_set_utf8_ptr(p, input_type)) |
| return 0; |
| |
| p = OSSL_PARAM_locate(params, OSSL_ENCODER_PARAM_OUTPUT_TYPE); |
| if (p != NULL && !OSSL_PARAM_set_utf8_ptr(p, output_type)) |
| return 0; |
| |
| return 1; |
| } |
| |
| static const OSSL_PARAM *key2any_settable_ctx_params(ossl_unused void *provctx) |
| { |
| static const OSSL_PARAM settables[] = { |
| OSSL_PARAM_utf8_string(OSSL_ENCODER_PARAM_CIPHER, NULL, 0), |
| OSSL_PARAM_utf8_string(OSSL_ENCODER_PARAM_PROPERTIES, NULL, 0), |
| OSSL_PARAM_END, |
| }; |
| |
| return settables; |
| } |
| |
| static int key2any_set_ctx_params(void *vctx, const OSSL_PARAM params[]) |
| { |
| struct key2any_ctx_st *ctx = vctx; |
| OSSL_LIB_CTX *libctx = ossl_prov_ctx_get0_libctx(ctx->provctx); |
| const OSSL_PARAM *cipherp = |
| OSSL_PARAM_locate_const(params, OSSL_ENCODER_PARAM_CIPHER); |
| const OSSL_PARAM *propsp = |
| OSSL_PARAM_locate_const(params, OSSL_ENCODER_PARAM_PROPERTIES); |
| |
| if (cipherp != NULL) { |
| const char *ciphername = NULL; |
| const char *props = NULL; |
| |
| if (!OSSL_PARAM_get_utf8_string_ptr(cipherp, &ciphername)) |
| return 0; |
| if (propsp != NULL && !OSSL_PARAM_get_utf8_string_ptr(propsp, &props)) |
| return 0; |
| |
| EVP_CIPHER_free(ctx->cipher); |
| ctx->cipher_intent = ciphername != NULL; |
| if (ciphername != NULL |
| && ((ctx->cipher = |
| EVP_CIPHER_fetch(libctx, ciphername, props)) == NULL)) |
| return 0; |
| } |
| return 1; |
| } |
| |
| static int key2any_encode(struct key2any_ctx_st *ctx, OSSL_CORE_BIO *cout, |
| const void *key, int type, |
| check_key_type_fn *checker, |
| key_to_der_fn *writer, |
| OSSL_PASSPHRASE_CALLBACK *cb, void *cbarg, |
| key_to_paramstring_fn *key2paramstring, |
| i2d_of_void *key2der) |
| { |
| int ret = 0; |
| |
| if (key == NULL) { |
| ERR_raise(ERR_LIB_PROV, ERR_R_PASSED_NULL_PARAMETER); |
| } else if (checker == NULL || checker(key, type)) { |
| BIO *out = bio_new_from_core_bio(ctx->provctx, cout); |
| |
| if (out != NULL |
| && writer != NULL |
| && ossl_pw_set_ossl_passphrase_cb(&ctx->pwdata, cb, cbarg)) |
| ret = writer(out, key, type, key2paramstring, key2der, ctx); |
| |
| BIO_free(out); |
| } else { |
| ERR_raise(ERR_LIB_PROV, ERR_R_PASSED_INVALID_ARGUMENT); |
| } |
| return ret; |
| } |
| |
| static int key2any_encode_params(struct key2any_ctx_st *ctx, |
| OSSL_CORE_BIO *cout, |
| const void *key, int type, |
| check_key_type_fn *checker, |
| write_bio_of_void_fn *writer) |
| { |
| int ret = 0; |
| |
| if (key == NULL) { |
| ERR_raise(ERR_LIB_PROV, ERR_R_PASSED_NULL_PARAMETER); |
| } else if (checker == NULL || checker(key, type)) { |
| BIO *out = bio_new_from_core_bio(ctx->provctx, cout); |
| |
| if (out != NULL && writer != NULL) |
| ret = writer(out, key); |
| |
| BIO_free(out); |
| } else { |
| ERR_raise(ERR_LIB_PROV, ERR_R_PASSED_INVALID_ARGUMENT); |
| } |
| |
| return ret; |
| } |
| |
| #define MAKE_ENCODER(impl, type, evp_type, output) \ |
| static OSSL_FUNC_encoder_get_params_fn \ |
| impl##2##output##_get_params; \ |
| static OSSL_FUNC_encoder_import_object_fn \ |
| impl##2##output##_import_object; \ |
| static OSSL_FUNC_encoder_free_object_fn \ |
| impl##2##output##_free_object; \ |
| static OSSL_FUNC_encoder_encode_fn impl##2##output##_encode; \ |
| \ |
| static int impl##2##output##_get_params(OSSL_PARAM params[]) \ |
| { \ |
| return key2any_get_params(params, impl##_input_type, \ |
| output##_output_type); \ |
| } \ |
| static void * \ |
| impl##2##output##_import_object(void *vctx, int selection, \ |
| const OSSL_PARAM params[]) \ |
| { \ |
| struct key2any_ctx_st *ctx = vctx; \ |
| return ossl_prov_import_key(ossl_##impl##_keymgmt_functions, \ |
| ctx->provctx, selection, params); \ |
| } \ |
| static void impl##2##output##_free_object(void *key) \ |
| { \ |
| ossl_prov_free_key(ossl_##impl##_keymgmt_functions, key); \ |
| } \ |
| static int \ |
| impl##2##output##_encode(void *ctx, OSSL_CORE_BIO *cout, \ |
| const void *key, \ |
| const OSSL_PARAM key_abstract[], \ |
| int selection, \ |
| OSSL_PASSPHRASE_CALLBACK *cb, void *cbarg) \ |
| { \ |
| /* We don't deal with abstract objects */ \ |
| if (key_abstract != NULL) { \ |
| ERR_raise(ERR_LIB_PROV, ERR_R_PASSED_INVALID_ARGUMENT); \ |
| return 0; \ |
| } \ |
| if ((selection & OSSL_KEYMGMT_SELECT_PRIVATE_KEY) != 0) \ |
| return key2any_encode(ctx, cout, key, impl##_evp_type, \ |
| type##_check_key_type, \ |
| key_to_##output##_pkcs8_bio, \ |
| cb, cbarg, \ |
| prepare_##type##_params, \ |
| type##_priv_to_der); \ |
| if ((selection & OSSL_KEYMGMT_SELECT_PUBLIC_KEY) != 0) \ |
| return key2any_encode(ctx, cout, key, impl##_evp_type, \ |
| type##_check_key_type, \ |
| key_to_##output##_pubkey_bio, \ |
| cb, cbarg, \ |
| prepare_##type##_params, \ |
| type##_pub_to_der); \ |
| if ((selection & OSSL_KEYMGMT_SELECT_ALL_PARAMETERS) != 0) \ |
| return key2any_encode_params(ctx, cout, key, \ |
| impl##_evp_type, \ |
| type##_check_key_type, \ |
| type##_params_to_##output##_bio); \ |
| \ |
| ERR_raise(ERR_LIB_PROV, ERR_R_PASSED_INVALID_ARGUMENT); \ |
| return 0; \ |
| } \ |
| const OSSL_DISPATCH ossl_##impl##_to_##output##_encoder_functions[] = { \ |
| { OSSL_FUNC_ENCODER_NEWCTX, \ |
| (void (*)(void))key2any_newctx }, \ |
| { OSSL_FUNC_ENCODER_FREECTX, \ |
| (void (*)(void))key2any_freectx }, \ |
| { OSSL_FUNC_ENCODER_GETTABLE_PARAMS, \ |
| (void (*)(void))key2any_gettable_params }, \ |
| { OSSL_FUNC_ENCODER_GET_PARAMS, \ |
| (void (*)(void))impl##2##output##_get_params }, \ |
| { OSSL_FUNC_ENCODER_SETTABLE_CTX_PARAMS, \ |
| (void (*)(void))key2any_settable_ctx_params }, \ |
| { OSSL_FUNC_ENCODER_SET_CTX_PARAMS, \ |
| (void (*)(void))key2any_set_ctx_params }, \ |
| { OSSL_FUNC_ENCODER_IMPORT_OBJECT, \ |
| (void (*)(void))impl##2##output##_import_object }, \ |
| { OSSL_FUNC_ENCODER_FREE_OBJECT, \ |
| (void (*)(void))impl##2##output##_free_object }, \ |
| { OSSL_FUNC_ENCODER_ENCODE, \ |
| (void (*)(void))impl##2##output##_encode }, \ |
| { 0, NULL } \ |
| } |
| |
| #ifndef OPENSSL_NO_DH |
| MAKE_ENCODER(dh, dh, EVP_PKEY_DH, der); |
| MAKE_ENCODER(dh, dh, EVP_PKEY_DH, pem); |
| MAKE_ENCODER(dhx, dh, EVP_PKEY_DHX, der); |
| MAKE_ENCODER(dhx, dh, EVP_PKEY_DHX, pem); |
| #endif |
| #ifndef OPENSSL_NO_DSA |
| MAKE_ENCODER(dsa, dsa, EVP_PKEY_DSA, der); |
| MAKE_ENCODER(dsa, dsa, EVP_PKEY_DSA, pem); |
| #endif |
| #ifndef OPENSSL_NO_EC |
| MAKE_ENCODER(ec, ec, EVP_PKEY_EC, der); |
| MAKE_ENCODER(ec, ec, EVP_PKEY_EC, pem); |
| MAKE_ENCODER(ed25519, ecx, EVP_PKEY_ED25519, der); |
| MAKE_ENCODER(ed25519, ecx, EVP_PKEY_ED25519, pem); |
| MAKE_ENCODER(ed448, ecx, EVP_PKEY_ED448, der); |
| MAKE_ENCODER(ed448, ecx, EVP_PKEY_ED448, pem); |
| MAKE_ENCODER(x25519, ecx, EVP_PKEY_X25519, der); |
| MAKE_ENCODER(x25519, ecx, EVP_PKEY_X25519, pem); |
| MAKE_ENCODER(x448, ecx, EVP_PKEY_ED448, der); |
| MAKE_ENCODER(x448, ecx, EVP_PKEY_ED448, pem); |
| #endif |
| MAKE_ENCODER(rsa, rsa, EVP_PKEY_RSA, der); |
| MAKE_ENCODER(rsa, rsa, EVP_PKEY_RSA, pem); |
| MAKE_ENCODER(rsapss, rsa, EVP_PKEY_RSA, der); |
| MAKE_ENCODER(rsapss, rsa, EVP_PKEY_RSA, pem); |
