| /* |
| * Copyright 2006-2022 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 key APIs (DH etc) are deprecated for public use, but still ok for |
| * internal use. |
| */ |
| #include "internal/deprecated.h" |
| |
| #include <stdio.h> |
| #include <stdlib.h> |
| #ifndef FIPS_MODULE |
| # include <openssl/engine.h> |
| #endif |
| #include <openssl/evp.h> |
| #include <openssl/core_names.h> |
| #include <openssl/dh.h> |
| #include <openssl/rsa.h> |
| #include <openssl/kdf.h> |
| #include "crypto/cryptlib.h" |
| #ifndef FIPS_MODULE |
| # include "crypto/asn1.h" |
| #endif |
| #include "crypto/evp.h" |
| #include "crypto/dh.h" |
| #include "crypto/ec.h" |
| #include "internal/ffc.h" |
| #include "internal/numbers.h" |
| #include "internal/provider.h" |
| #include "evp_local.h" |
| |
| #ifndef FIPS_MODULE |
| |
| static int evp_pkey_ctx_store_cached_data(EVP_PKEY_CTX *ctx, |
| int keytype, int optype, |
| int cmd, const char *name, |
| const void *data, size_t data_len); |
| static void evp_pkey_ctx_free_cached_data(EVP_PKEY_CTX *ctx, |
| int cmd, const char *name); |
| static void evp_pkey_ctx_free_all_cached_data(EVP_PKEY_CTX *ctx); |
| |
| typedef const EVP_PKEY_METHOD *(*pmeth_fn)(void); |
| typedef int sk_cmp_fn_type(const char *const *a, const char *const *b); |
| |
| static STACK_OF(EVP_PKEY_METHOD) *app_pkey_methods = NULL; |
| |
| /* This array needs to be in order of NIDs */ |
| static pmeth_fn standard_methods[] = { |
| ossl_rsa_pkey_method, |
| # ifndef OPENSSL_NO_DH |
| ossl_dh_pkey_method, |
| # endif |
| # ifndef OPENSSL_NO_DSA |
| ossl_dsa_pkey_method, |
| # endif |
| # ifndef OPENSSL_NO_EC |
| ossl_ec_pkey_method, |
| # endif |
| ossl_rsa_pss_pkey_method, |
| # ifndef OPENSSL_NO_DH |
| ossl_dhx_pkey_method, |
| # endif |
| # ifndef OPENSSL_NO_EC |
| ossl_ecx25519_pkey_method, |
| ossl_ecx448_pkey_method, |
| # endif |
| # ifndef OPENSSL_NO_EC |
| ossl_ed25519_pkey_method, |
| ossl_ed448_pkey_method, |
| # endif |
| }; |
| |
| DECLARE_OBJ_BSEARCH_CMP_FN(const EVP_PKEY_METHOD *, pmeth_fn, pmeth_func); |
| |
| static int pmeth_func_cmp(const EVP_PKEY_METHOD *const *a, pmeth_fn const *b) |
| { |
| return ((*a)->pkey_id - ((**b)())->pkey_id); |
| } |
| |
| IMPLEMENT_OBJ_BSEARCH_CMP_FN(const EVP_PKEY_METHOD *, pmeth_fn, pmeth_func); |
| |
| static int pmeth_cmp(const EVP_PKEY_METHOD *const *a, |
| const EVP_PKEY_METHOD *const *b) |
| { |
| return ((*a)->pkey_id - (*b)->pkey_id); |
| } |
| |
| static const EVP_PKEY_METHOD *evp_pkey_meth_find_added_by_application(int type) |
| { |
| if (app_pkey_methods != NULL) { |
| int idx; |
| EVP_PKEY_METHOD tmp; |
| |
| tmp.pkey_id = type; |
| idx = sk_EVP_PKEY_METHOD_find(app_pkey_methods, &tmp); |
| if (idx >= 0) |
| return sk_EVP_PKEY_METHOD_value(app_pkey_methods, idx); |
| } |
| return NULL; |
| } |
| |
| const EVP_PKEY_METHOD *EVP_PKEY_meth_find(int type) |
| { |
| pmeth_fn *ret; |
| EVP_PKEY_METHOD tmp; |
| const EVP_PKEY_METHOD *t; |
| |
| if ((t = evp_pkey_meth_find_added_by_application(type)) != NULL) |
| return t; |
| |
| tmp.pkey_id = type; |
| t = &tmp; |
| ret = OBJ_bsearch_pmeth_func(&t, standard_methods, |
| OSSL_NELEM(standard_methods)); |
| if (ret == NULL || *ret == NULL) |
| return NULL; |
| return (**ret)(); |
| } |
| |
| EVP_PKEY_METHOD *EVP_PKEY_meth_new(int id, int flags) |
| { |
| EVP_PKEY_METHOD *pmeth; |
| |
| pmeth = OPENSSL_zalloc(sizeof(*pmeth)); |
| if (pmeth == NULL) { |
| ERR_raise(ERR_LIB_EVP, ERR_R_MALLOC_FAILURE); |
| return NULL; |
| } |
| |
| pmeth->pkey_id = id; |
| pmeth->flags = flags | EVP_PKEY_FLAG_DYNAMIC; |
| return pmeth; |
| } |
| |
| static void help_get_legacy_alg_type_from_keymgmt(const char *keytype, |
| void *arg) |
| { |
| int *type = arg; |
| |
| if (*type == NID_undef) |
| *type = evp_pkey_name2type(keytype); |
| } |
| |
| static int get_legacy_alg_type_from_keymgmt(const EVP_KEYMGMT *keymgmt) |
| { |
| int type = NID_undef; |
| |
| EVP_KEYMGMT_names_do_all(keymgmt, help_get_legacy_alg_type_from_keymgmt, |
| &type); |
| return type; |
| } |
| #endif /* FIPS_MODULE */ |
| |
| int evp_pkey_ctx_state(const EVP_PKEY_CTX *ctx) |
| { |
| if (ctx->operation == EVP_PKEY_OP_UNDEFINED) |
| return EVP_PKEY_STATE_UNKNOWN; |
| |
| if ((EVP_PKEY_CTX_IS_DERIVE_OP(ctx) |
| && ctx->op.kex.algctx != NULL) |
| || (EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx) |
| && ctx->op.sig.algctx != NULL) |
| || (EVP_PKEY_CTX_IS_ASYM_CIPHER_OP(ctx) |
| && ctx->op.ciph.algctx != NULL) |
| || (EVP_PKEY_CTX_IS_GEN_OP(ctx) |
| && ctx->op.keymgmt.genctx != NULL) |
| || (EVP_PKEY_CTX_IS_KEM_OP(ctx) |
| && ctx->op.encap.algctx != NULL)) |
| return EVP_PKEY_STATE_PROVIDER; |
| |
| return EVP_PKEY_STATE_LEGACY; |
| } |
| |
| static EVP_PKEY_CTX *int_ctx_new(OSSL_LIB_CTX *libctx, |
| EVP_PKEY *pkey, ENGINE *e, |
| const char *keytype, const char *propquery, |
| int id) |
| |
| { |
| EVP_PKEY_CTX *ret = NULL; |
| const EVP_PKEY_METHOD *pmeth = NULL, *app_pmeth = NULL; |
| EVP_KEYMGMT *keymgmt = NULL; |
| |
| /* Code below to be removed when legacy support is dropped. */ |
| /* BEGIN legacy */ |
| if (id == -1) { |
| if (pkey != NULL && !evp_pkey_is_provided(pkey)) { |
| id = pkey->type; |
| } else { |
| if (pkey != NULL) { |
| /* Must be provided if we get here */ |
| keytype = EVP_KEYMGMT_get0_name(pkey->keymgmt); |
| } |
| #ifndef FIPS_MODULE |
| if (keytype != NULL) { |
| OPENSSL_init_crypto(OPENSSL_INIT_BASE_ONLY, NULL); |
| id = evp_pkey_name2type(keytype); |
| if (id == NID_undef) |
| id = -1; |
| } |
| #endif |
| } |
| } |
| /* If no ID was found here, we can only resort to find a keymgmt */ |
| if (id == -1) { |
| #ifndef FIPS_MODULE |
| /* Using engine with a key without id will not work */ |
| if (e != NULL) { |
| ERR_raise(ERR_LIB_EVP, EVP_R_UNSUPPORTED_ALGORITHM); |
| return NULL; |
| } |
| #endif |
| goto common; |
| } |
| |
| #ifndef FIPS_MODULE |
| /* |
| * Here, we extract what information we can for the purpose of |
| * supporting usage with implementations from providers, to make |
| * for a smooth transition from legacy stuff to provider based stuff. |
| * |
| * If an engine is given, this is entirely legacy, and we should not |
| * pretend anything else, so we clear the name. |
| */ |
| if (e != NULL) |
| keytype = NULL; |
| if (e == NULL && (pkey == NULL || pkey->foreign == 0)) |
| keytype = OBJ_nid2sn(id); |
| |
| # ifndef OPENSSL_NO_ENGINE |
| if (e == NULL && pkey != NULL) |
| e = pkey->pmeth_engine != NULL ? pkey->pmeth_engine : pkey->engine; |
| /* Try to find an ENGINE which implements this method */ |
| if (e != NULL) { |
| if (!ENGINE_init(e)) { |
| ERR_raise(ERR_LIB_EVP, ERR_R_ENGINE_LIB); |
| return NULL; |
| } |
| } else { |
| e = ENGINE_get_pkey_meth_engine(id); |
| } |
| |
| /* |
| * If an ENGINE handled this method look it up. Otherwise use internal |
| * tables. |
| */ |
| if (e != NULL) |
| pmeth = ENGINE_get_pkey_meth(e, id); |
| else if (pkey != NULL && pkey->foreign) |
| pmeth = EVP_PKEY_meth_find(id); |
| else |
| # endif |
| app_pmeth = pmeth = evp_pkey_meth_find_added_by_application(id); |
| |
| /* END legacy */ |
| #endif /* FIPS_MODULE */ |
| common: |
| /* |
| * If there's no engine and no app supplied pmeth and there's a name, we try |
| * fetching a provider implementation. |
| */ |
| if (e == NULL && app_pmeth == NULL && keytype != NULL) { |
| /* |
| * If |pkey| is given and is provided, we take a reference to its |
| * keymgmt. Otherwise, we fetch one for the keytype we got. This |
| * is to ensure that operation init functions can access what they |
| * need through this single pointer. |
| */ |
| if (pkey != NULL && pkey->keymgmt != NULL) { |
| if (!EVP_KEYMGMT_up_ref(pkey->keymgmt)) |
| ERR_raise(ERR_LIB_EVP, EVP_R_INITIALIZATION_ERROR); |
| else |
| keymgmt = pkey->keymgmt; |
| } else { |
| keymgmt = EVP_KEYMGMT_fetch(libctx, keytype, propquery); |
| } |
| if (keymgmt == NULL) |
| return NULL; /* EVP_KEYMGMT_fetch() recorded an error */ |
| |
| #ifndef FIPS_MODULE |
| /* |
| * Chase down the legacy NID, as that might be needed for diverse |
| * purposes, such as ensure that EVP_PKEY_type() can return sensible |
| * values. We go through all keymgmt names, because the keytype |
| * that's passed to this function doesn't necessarily translate |
| * directly. |
| */ |
| if (keymgmt != NULL) { |
| int tmp_id = get_legacy_alg_type_from_keymgmt(keymgmt); |
| |
| if (tmp_id != NID_undef) { |
| if (id == -1) { |
| id = tmp_id; |
| } else { |
| /* |
| * It really really shouldn't differ. If it still does, |
| * something is very wrong. |
| */ |
| if (!ossl_assert(id == tmp_id)) { |
| ERR_raise(ERR_LIB_EVP, ERR_R_INTERNAL_ERROR); |
| EVP_KEYMGMT_free(keymgmt); |
| return NULL; |
| } |
| } |
| } |
| } |
| #endif |
| } |
| |
| if (pmeth == NULL && keymgmt == NULL) { |
| ERR_raise(ERR_LIB_EVP, EVP_R_UNSUPPORTED_ALGORITHM); |
| } else { |
| ret = OPENSSL_zalloc(sizeof(*ret)); |
| if (ret == NULL) |
| ERR_raise(ERR_LIB_EVP, ERR_R_MALLOC_FAILURE); |
| } |
| |
| #if !defined(OPENSSL_NO_ENGINE) && !defined(FIPS_MODULE) |
| if ((ret == NULL || pmeth == NULL) && e != NULL) |
| ENGINE_finish(e); |
| #endif |
| |
| if (ret == NULL) { |
| EVP_KEYMGMT_free(keymgmt); |
| return NULL; |
| } |
| if (propquery != NULL) { |
| ret->propquery = OPENSSL_strdup(propquery); |
| if (ret->propquery == NULL) { |
| OPENSSL_free(ret); |
| EVP_KEYMGMT_free(keymgmt); |
| return NULL; |
| } |
| } |
| ret->libctx = libctx; |
| ret->keytype = keytype; |
| ret->keymgmt = keymgmt; |
| ret->legacy_keytype = id; |
| ret->engine = e; |
| ret->pmeth = pmeth; |
| ret->operation = EVP_PKEY_OP_UNDEFINED; |
| ret->pkey = pkey; |
| if (pkey != NULL) |
| EVP_PKEY_up_ref(pkey); |
| |
| if (pmeth != NULL && pmeth->init != NULL) { |
| if (pmeth->init(ret) <= 0) { |
| ret->pmeth = NULL; |
| EVP_PKEY_CTX_free(ret); |
| return NULL; |
| } |
| } |
| |
| return ret; |
| } |
| |
| /*- All methods below can also be used in FIPS_MODULE */ |
| |
| EVP_PKEY_CTX *EVP_PKEY_CTX_new_from_name(OSSL_LIB_CTX *libctx, |
| const char *name, |
| const char *propquery) |
| { |
| return int_ctx_new(libctx, NULL, NULL, name, propquery, -1); |
| } |
| |
| EVP_PKEY_CTX *EVP_PKEY_CTX_new_from_pkey(OSSL_LIB_CTX *libctx, EVP_PKEY *pkey, |
| const char *propquery) |
| { |
| return int_ctx_new(libctx, pkey, NULL, NULL, propquery, -1); |
| } |
| |
| void evp_pkey_ctx_free_old_ops(EVP_PKEY_CTX *ctx) |
| { |
| if (EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx)) { |
| if (ctx->op.sig.algctx != NULL && ctx->op.sig.signature != NULL) |
| ctx->op.sig.signature->freectx(ctx->op.sig.algctx); |
| EVP_SIGNATURE_free(ctx->op.sig.signature); |
| ctx->op.sig.algctx = NULL; |
| ctx->op.sig.signature = NULL; |
| } else if (EVP_PKEY_CTX_IS_DERIVE_OP(ctx)) { |
| if (ctx->op.kex.algctx != NULL && ctx->op.kex.exchange != NULL) |
| ctx->op.kex.exchange->freectx(ctx->op.kex.algctx); |
| EVP_KEYEXCH_free(ctx->op.kex.exchange); |
| ctx->op.kex.algctx = NULL; |
| ctx->op.kex.exchange = NULL; |
| } else if (EVP_PKEY_CTX_IS_KEM_OP(ctx)) { |
| if (ctx->op.encap.algctx != NULL && ctx->op.encap.kem != NULL) |
| ctx->op.encap.kem->freectx(ctx->op.encap.algctx); |
| EVP_KEM_free(ctx->op.encap.kem); |
| ctx->op.encap.algctx = NULL; |
| ctx->op.encap.kem = NULL; |
| } |
| else if (EVP_PKEY_CTX_IS_ASYM_CIPHER_OP(ctx)) { |
| if (ctx->op.ciph.algctx != NULL && ctx->op.ciph.cipher != NULL) |
| ctx->op.ciph.cipher->freectx(ctx->op.ciph.algctx); |
| EVP_ASYM_CIPHER_free(ctx->op.ciph.cipher); |
| ctx->op.ciph.algctx = NULL; |
| ctx->op.ciph.cipher = NULL; |
| } else if (EVP_PKEY_CTX_IS_GEN_OP(ctx)) { |
| if (ctx->op.keymgmt.genctx != NULL && ctx->keymgmt != NULL) |
| evp_keymgmt_gen_cleanup(ctx->keymgmt, ctx->op.keymgmt.genctx); |
| } |
| } |
| |
| void EVP_PKEY_CTX_free(EVP_PKEY_CTX *ctx) |
| { |
| if (ctx == NULL) |
| return; |
| if (ctx->pmeth && ctx->pmeth->cleanup) |
| ctx->pmeth->cleanup(ctx); |
| |
| evp_pkey_ctx_free_old_ops(ctx); |
| #ifndef FIPS_MODULE |
| evp_pkey_ctx_free_all_cached_data(ctx); |
| #endif |
| EVP_KEYMGMT_free(ctx->keymgmt); |
| |
| OPENSSL_free(ctx->propquery); |
| EVP_PKEY_free(ctx->pkey); |
| EVP_PKEY_free(ctx->peerkey); |
| #if !defined(OPENSSL_NO_ENGINE) && !defined(FIPS_MODULE) |
| ENGINE_finish(ctx->engine); |
| #endif |
| BN_free(ctx->rsa_pubexp); |
| OPENSSL_free(ctx); |
| } |
| |
| #ifndef FIPS_MODULE |
| |
| void EVP_PKEY_meth_get0_info(int *ppkey_id, int *pflags, |
| const EVP_PKEY_METHOD *meth) |
| { |
| if (ppkey_id) |
| *ppkey_id = meth->pkey_id; |
| if (pflags) |
| *pflags = meth->flags; |
| } |
| |
| void EVP_PKEY_meth_copy(EVP_PKEY_METHOD *dst, const EVP_PKEY_METHOD *src) |
| { |
| int pkey_id = dst->pkey_id; |
| int flags = dst->flags; |
| |
| *dst = *src; |
| |
| /* We only copy the function pointers so restore the other values */ |
| dst->pkey_id = pkey_id; |
| dst->flags = flags; |
| } |
| |
| void EVP_PKEY_meth_free(EVP_PKEY_METHOD *pmeth) |
| { |
| if (pmeth && (pmeth->flags & EVP_PKEY_FLAG_DYNAMIC)) |
| OPENSSL_free(pmeth); |
| } |
| |
| EVP_PKEY_CTX *EVP_PKEY_CTX_new(EVP_PKEY *pkey, ENGINE *e) |
| { |
| return int_ctx_new(NULL, pkey, e, NULL, NULL, -1); |
| } |
| |
| EVP_PKEY_CTX *EVP_PKEY_CTX_new_id(int id, ENGINE *e) |
| { |
| return int_ctx_new(NULL, NULL, e, NULL, NULL, id); |
| } |
| |
| EVP_PKEY_CTX *EVP_PKEY_CTX_dup(const EVP_PKEY_CTX *pctx) |
| { |
| EVP_PKEY_CTX *rctx; |
| |
| # ifndef OPENSSL_NO_ENGINE |
| /* Make sure it's safe to copy a pkey context using an ENGINE */ |
| if (pctx->engine && !ENGINE_init(pctx->engine)) { |
| ERR_raise(ERR_LIB_EVP, ERR_R_ENGINE_LIB); |
| return 0; |
| } |
| # endif |
| rctx = OPENSSL_zalloc(sizeof(*rctx)); |
| if (rctx == NULL) { |
| ERR_raise(ERR_LIB_EVP, ERR_R_MALLOC_FAILURE); |
| return NULL; |
| } |
| |
| if (pctx->pkey != NULL) |
| EVP_PKEY_up_ref(pctx->pkey); |
| rctx->pkey = pctx->pkey; |
| rctx->operation = pctx->operation; |
| rctx->libctx = pctx->libctx; |
| rctx->keytype = pctx->keytype; |
| rctx->propquery = NULL; |
| if (pctx->propquery != NULL) { |
| rctx->propquery = OPENSSL_strdup(pctx->propquery); |
| if (rctx->propquery == NULL) |
| goto err; |
| } |
| rctx->legacy_keytype = pctx->legacy_keytype; |
| |
| if (EVP_PKEY_CTX_IS_DERIVE_OP(pctx)) { |
| if (pctx->op.kex.exchange != NULL) { |
| rctx->op.kex.exchange = pctx->op.kex.exchange; |
| if (!EVP_KEYEXCH_up_ref(rctx->op.kex.exchange)) |
| goto err; |
| } |
| if (pctx->op.kex.algctx != NULL) { |
| if (!ossl_assert(pctx->op.kex.exchange != NULL)) |
| goto err; |
| rctx->op.kex.algctx |
| = pctx->op.kex.exchange->dupctx(pctx->op.kex.algctx); |
| if (rctx->op.kex.algctx == NULL) { |
| EVP_KEYEXCH_free(rctx->op.kex.exchange); |
| rctx->op.kex.exchange = NULL; |
| goto err; |
| } |
| return rctx; |
| } |
| } else if (EVP_PKEY_CTX_IS_SIGNATURE_OP(pctx)) { |
| if (pctx->op.sig.signature != NULL) { |
| rctx->op.sig.signature = pctx->op.sig.signature; |
| if (!EVP_SIGNATURE_up_ref(rctx->op.sig.signature)) |
| goto err; |
| } |
| if (pctx->op.sig.algctx != NULL) { |
| if (!ossl_assert(pctx->op.sig.signature != NULL)) |
| goto err; |
| rctx->op.sig.algctx |
| = pctx->op.sig.signature->dupctx(pctx->op.sig.algctx); |
| if (rctx->op.sig.algctx == NULL) { |
| EVP_SIGNATURE_free(rctx->op.sig.signature); |
| rctx->op.sig.signature = NULL; |
| goto err; |
| } |
| return rctx; |
| } |
| } else if (EVP_PKEY_CTX_IS_ASYM_CIPHER_OP(pctx)) { |
| if (pctx->op.ciph.cipher != NULL) { |
| rctx->op.ciph.cipher = pctx->op.ciph.cipher; |
| if (!EVP_ASYM_CIPHER_up_ref(rctx->op.ciph.cipher)) |
| goto err; |
| } |
| if (pctx->op.ciph.algctx != NULL) { |
| if (!ossl_assert(pctx->op.ciph.cipher != NULL)) |
| goto err; |
| rctx->op.ciph.algctx |
| = pctx->op.ciph.cipher->dupctx(pctx->op.ciph.algctx); |
| if (rctx->op.ciph.algctx == NULL) { |
| EVP_ASYM_CIPHER_free(rctx->op.ciph.cipher); |
| rctx->op.ciph.cipher = NULL; |
| goto err; |
| } |
| return rctx; |
| } |
| } else if (EVP_PKEY_CTX_IS_KEM_OP(pctx)) { |
| if (pctx->op.encap.kem != NULL) { |
| rctx->op.encap.kem = pctx->op.encap.kem; |
| if (!EVP_KEM_up_ref(rctx->op.encap.kem)) |
| goto err; |
| } |
| if (pctx->op.encap.algctx != NULL) { |
| if (!ossl_assert(pctx->op.encap.kem != NULL)) |
| goto err; |
| rctx->op.encap.algctx |
| = pctx->op.encap.kem->dupctx(pctx->op.encap.algctx); |
| if (rctx->op.encap.algctx == NULL) { |
| EVP_KEM_free(rctx->op.encap.kem); |
| rctx->op.encap.kem = NULL; |
| goto err; |
| } |
| return rctx; |
| } |
| } else if (EVP_PKEY_CTX_IS_GEN_OP(pctx)) { |
| /* Not supported - This would need a gen_dupctx() to work */ |
| goto err; |
| } |
| |
| rctx->pmeth = pctx->pmeth; |
| # ifndef OPENSSL_NO_ENGINE |
| rctx->engine = pctx->engine; |
| # endif |
| |
| if (pctx->peerkey != NULL) |
| EVP_PKEY_up_ref(pctx->peerkey); |
| rctx->peerkey = pctx->peerkey; |
| |
| if (pctx->pmeth == NULL) { |
| if (rctx->operation == EVP_PKEY_OP_UNDEFINED) { |
| EVP_KEYMGMT *tmp_keymgmt = pctx->keymgmt; |
| void *provkey; |
| |
| provkey = evp_pkey_export_to_provider(pctx->pkey, pctx->libctx, |
| &tmp_keymgmt, pctx->propquery); |
| if (provkey == NULL) |
| goto err; |
| if (!EVP_KEYMGMT_up_ref(tmp_keymgmt)) |
| goto err; |
| EVP_KEYMGMT_free(rctx->keymgmt); |
| rctx->keymgmt = tmp_keymgmt; |
| return rctx; |
| } |
| } else if (pctx->pmeth->copy(rctx, pctx) > 0) { |
| return rctx; |
| } |
| err: |
| rctx->pmeth = NULL; |
| EVP_PKEY_CTX_free(rctx); |
| return NULL; |
| } |
| |
| int EVP_PKEY_meth_add0(const EVP_PKEY_METHOD *pmeth) |
| { |
| if (app_pkey_methods == NULL) { |
| app_pkey_methods = sk_EVP_PKEY_METHOD_new(pmeth_cmp); |
| if (app_pkey_methods == NULL) { |
| ERR_raise(ERR_LIB_EVP, ERR_R_MALLOC_FAILURE); |
| return 0; |
| } |
| } |
| if (!sk_EVP_PKEY_METHOD_push(app_pkey_methods, pmeth)) { |
| ERR_raise(ERR_LIB_EVP, ERR_R_MALLOC_FAILURE); |
| return 0; |
| } |
| sk_EVP_PKEY_METHOD_sort(app_pkey_methods); |
| return 1; |
| } |
| |
| void evp_app_cleanup_int(void) |
| { |
| if (app_pkey_methods != NULL) |
| sk_EVP_PKEY_METHOD_pop_free(app_pkey_methods, EVP_PKEY_meth_free); |
| } |
| |
| int EVP_PKEY_meth_remove(const EVP_PKEY_METHOD *pmeth) |
| { |
| const EVP_PKEY_METHOD *ret; |
| |
| ret = sk_EVP_PKEY_METHOD_delete_ptr(app_pkey_methods, pmeth); |
| |
| return ret == NULL ? 0 : 1; |
| } |
| |
| size_t EVP_PKEY_meth_get_count(void) |
| { |
| size_t rv = OSSL_NELEM(standard_methods); |
| |
| if (app_pkey_methods) |
| rv += sk_EVP_PKEY_METHOD_num(app_pkey_methods); |
| return rv; |
| } |
| |
| const EVP_PKEY_METHOD *EVP_PKEY_meth_get0(size_t idx) |
| { |
| if (idx < OSSL_NELEM(standard_methods)) |
| return (standard_methods[idx])(); |
| if (app_pkey_methods == NULL) |
| return NULL; |
| idx -= OSSL_NELEM(standard_methods); |
| if (idx >= (size_t)sk_EVP_PKEY_METHOD_num(app_pkey_methods)) |
| return NULL; |
| return sk_EVP_PKEY_METHOD_value(app_pkey_methods, idx); |
| } |
| #endif |
| |
| int EVP_PKEY_CTX_is_a(EVP_PKEY_CTX *ctx, const char *keytype) |
| { |
| #ifndef FIPS_MODULE |
| if (evp_pkey_ctx_is_legacy(ctx)) |
| return (ctx->pmeth->pkey_id == evp_pkey_name2type(keytype)); |
| #endif |
| return EVP_KEYMGMT_is_a(ctx->keymgmt, keytype); |
| } |
| |
| int EVP_PKEY_CTX_set_params(EVP_PKEY_CTX *ctx, const OSSL_PARAM *params) |
| { |
| switch (evp_pkey_ctx_state(ctx)) { |
| case EVP_PKEY_STATE_PROVIDER: |
| if (EVP_PKEY_CTX_IS_DERIVE_OP(ctx) |
| && ctx->op.kex.exchange != NULL |
| && ctx->op.kex.exchange->set_ctx_params != NULL) |
| return |
| ctx->op.kex.exchange->set_ctx_params(ctx->op.kex.algctx, |
| params); |
| if (EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx) |
| && ctx->op.sig.signature != NULL |
| && ctx->op.sig.signature->set_ctx_params != NULL) |
| return |
| ctx->op.sig.signature->set_ctx_params(ctx->op.sig.algctx, |
| params); |
| if (EVP_PKEY_CTX_IS_ASYM_CIPHER_OP(ctx) |
| && ctx->op.ciph.cipher != NULL |
| && ctx->op.ciph.cipher->set_ctx_params != NULL) |
| return |
| ctx->op.ciph.cipher->set_ctx_params(ctx->op.ciph.algctx, |
| params); |
| if (EVP_PKEY_CTX_IS_GEN_OP(ctx) |
| && ctx->keymgmt != NULL |
| && ctx->keymgmt->gen_set_params != NULL) |
| return |
| evp_keymgmt_gen_set_params(ctx->keymgmt, ctx->op.keymgmt.genctx, |
| params); |
| if (EVP_PKEY_CTX_IS_KEM_OP(ctx) |
| && ctx->op.encap.kem != NULL |
| && ctx->op.encap.kem->set_ctx_params != NULL) |
| return |
| ctx->op.encap.kem->set_ctx_params(ctx->op.encap.algctx, |
| params); |
| break; |
| #ifndef FIPS_MODULE |
| case EVP_PKEY_STATE_UNKNOWN: |
| case EVP_PKEY_STATE_LEGACY: |
| return evp_pkey_ctx_set_params_to_ctrl(ctx, params); |
| #endif |
| } |
| return 0; |
| } |
| |
| int EVP_PKEY_CTX_get_params(EVP_PKEY_CTX *ctx, OSSL_PARAM *params) |
| { |
| switch (evp_pkey_ctx_state(ctx)) { |
| case EVP_PKEY_STATE_PROVIDER: |
| if (EVP_PKEY_CTX_IS_DERIVE_OP(ctx) |
| && ctx->op.kex.exchange != NULL |
| && ctx->op.kex.exchange->get_ctx_params != NULL) |
| return |
| ctx->op.kex.exchange->get_ctx_params(ctx->op.kex.algctx, |
| params); |
| if (EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx) |
| && ctx->op.sig.signature != NULL |
| && ctx->op.sig.signature->get_ctx_params != NULL) |
| return |
| ctx->op.sig.signature->get_ctx_params(ctx->op.sig.algctx, |
| params); |
| if (EVP_PKEY_CTX_IS_ASYM_CIPHER_OP(ctx) |
| && ctx->op.ciph.cipher != NULL |
| && ctx->op.ciph.cipher->get_ctx_params != NULL) |
| return |
| ctx->op.ciph.cipher->get_ctx_params(ctx->op.ciph.algctx, |
| params); |
| if (EVP_PKEY_CTX_IS_KEM_OP(ctx) |
| && ctx->op.encap.kem != NULL |
| && ctx->op.encap.kem->get_ctx_params != NULL) |
| return |
| ctx->op.encap.kem->get_ctx_params(ctx->op.encap.algctx, |
| params); |
| break; |
| #ifndef FIPS_MODULE |
| case EVP_PKEY_STATE_UNKNOWN: |
| case EVP_PKEY_STATE_LEGACY: |
| return evp_pkey_ctx_get_params_to_ctrl(ctx, params); |
| #endif |
| } |
| return 0; |
| } |
| |
| #ifndef FIPS_MODULE |
| const OSSL_PARAM *EVP_PKEY_CTX_gettable_params(const EVP_PKEY_CTX *ctx) |
| { |
| void *provctx; |
| |
| if (EVP_PKEY_CTX_IS_DERIVE_OP(ctx) |
| && ctx->op.kex.exchange != NULL |
| && ctx->op.kex.exchange->gettable_ctx_params != NULL) { |
| provctx = ossl_provider_ctx(EVP_KEYEXCH_get0_provider(ctx->op.kex.exchange)); |
| return ctx->op.kex.exchange->gettable_ctx_params(ctx->op.kex.algctx, |
| provctx); |
| } |
| if (EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx) |
| && ctx->op.sig.signature != NULL |
| && ctx->op.sig.signature->gettable_ctx_params != NULL) { |
| provctx = ossl_provider_ctx( |
| EVP_SIGNATURE_get0_provider(ctx->op.sig.signature)); |
| return ctx->op.sig.signature->gettable_ctx_params(ctx->op.sig.algctx, |
| provctx); |
| } |
| if (EVP_PKEY_CTX_IS_ASYM_CIPHER_OP(ctx) |
| && ctx->op.ciph.cipher != NULL |
| && ctx->op.ciph.cipher->gettable_ctx_params != NULL) { |
| provctx = ossl_provider_ctx( |
| EVP_ASYM_CIPHER_get0_provider(ctx->op.ciph.cipher)); |
| return ctx->op.ciph.cipher->gettable_ctx_params(ctx->op.ciph.algctx, |
| provctx); |
| } |
| if (EVP_PKEY_CTX_IS_KEM_OP(ctx) |
| && ctx->op.encap.kem != NULL |
| && ctx->op.encap.kem->gettable_ctx_params != NULL) { |
| provctx = ossl_provider_ctx(EVP_KEM_get0_provider(ctx->op.encap.kem)); |
| return ctx->op.encap.kem->gettable_ctx_params(ctx->op.encap.algctx, |
| provctx); |
| } |
| return NULL; |
| } |
| |
| const OSSL_PARAM *EVP_PKEY_CTX_settable_params(const EVP_PKEY_CTX *ctx) |
| { |
| void *provctx; |
| |
| if (EVP_PKEY_CTX_IS_DERIVE_OP(ctx) |
| && ctx->op.kex.exchange != NULL |
| && ctx->op.kex.exchange->settable_ctx_params != NULL) { |
| provctx = ossl_provider_ctx(EVP_KEYEXCH_get0_provider(ctx->op.kex.exchange)); |
| return ctx->op.kex.exchange->settable_ctx_params(ctx->op.kex.algctx, |
| provctx); |
| } |
| if (EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx) |
| && ctx->op.sig.signature != NULL |
| && ctx->op.sig.signature->settable_ctx_params != NULL) { |
| provctx = ossl_provider_ctx( |
| EVP_SIGNATURE_get0_provider(ctx->op.sig.signature)); |
| return ctx->op.sig.signature->settable_ctx_params(ctx->op.sig.algctx, |
| provctx); |
| } |
| if (EVP_PKEY_CTX_IS_ASYM_CIPHER_OP(ctx) |
| && ctx->op.ciph.cipher != NULL |
| && ctx->op.ciph.cipher->settable_ctx_params != NULL) { |
| provctx = ossl_provider_ctx( |
| EVP_ASYM_CIPHER_get0_provider(ctx->op.ciph.cipher)); |
| return ctx->op.ciph.cipher->settable_ctx_params(ctx->op.ciph.algctx, |
| provctx); |
| } |
| if (EVP_PKEY_CTX_IS_GEN_OP(ctx) |
| && ctx->keymgmt != NULL |
| && ctx->keymgmt->gen_settable_params != NULL) { |
| provctx = ossl_provider_ctx(EVP_KEYMGMT_get0_provider(ctx->keymgmt)); |
| return ctx->keymgmt->gen_settable_params(ctx->op.keymgmt.genctx, |
| provctx); |
| } |
| if (EVP_PKEY_CTX_IS_KEM_OP(ctx) |
| && ctx->op.encap.kem != NULL |
| && ctx->op.encap.kem->settable_ctx_params != NULL) { |
| provctx = ossl_provider_ctx(EVP_KEM_get0_provider(ctx->op.encap.kem)); |
| return ctx->op.encap.kem->settable_ctx_params(ctx->op.encap.algctx, |
| provctx); |
| } |
| return NULL; |
| } |
| |
| /* |
| * Internal helpers for stricter EVP_PKEY_CTX_{set,get}_params(). |
| * |
| * Return 1 on success, 0 or negative for errors. |
| * |
| * In particular they return -2 if any of the params is not supported. |
| * |
| * They are not available in FIPS_MODULE as they depend on |
| * - EVP_PKEY_CTX_{get,set}_params() |
| * - EVP_PKEY_CTX_{gettable,settable}_params() |
| * |
| */ |
| int evp_pkey_ctx_set_params_strict(EVP_PKEY_CTX *ctx, OSSL_PARAM *params) |
| { |
| if (ctx == NULL || params == NULL) |
| return 0; |
| |
| /* |
| * We only check for provider side EVP_PKEY_CTX. For #legacy, we |
| * depend on the translation that happens in EVP_PKEY_CTX_set_params() |
| * call, and that the resulting ctrl call will return -2 if it doesn't |
| * known the ctrl command number. |
| */ |
| if (evp_pkey_ctx_is_provided(ctx)) { |
| const OSSL_PARAM *settable = EVP_PKEY_CTX_settable_params(ctx); |
| const OSSL_PARAM *p; |
| |
| for (p = params; p->key != NULL; p++) { |
| /* Check the ctx actually understands this parameter */ |
| if (OSSL_PARAM_locate_const(settable, p->key) == NULL) |
| return -2; |
| } |
| } |
| |
| return EVP_PKEY_CTX_set_params(ctx, params); |
| } |
| |
| int evp_pkey_ctx_get_params_strict(EVP_PKEY_CTX *ctx, OSSL_PARAM *params) |
| { |
| if (ctx == NULL || params == NULL) |
| return 0; |
| |
| /* |
| * We only check for provider side EVP_PKEY_CTX. For #legacy, we |
| * depend on the translation that happens in EVP_PKEY_CTX_get_params() |
| * call, and that the resulting ctrl call will return -2 if it doesn't |
| * known the ctrl command number. |
| */ |
| if (evp_pkey_ctx_is_provided(ctx)) { |
| const OSSL_PARAM *gettable = EVP_PKEY_CTX_gettable_params(ctx); |
| const OSSL_PARAM *p; |
| |
| for (p = params; p->key != NULL; p++) { |
| /* Check the ctx actually understands this parameter */ |
| if (OSSL_PARAM_locate_const(gettable, p->key) == NULL) |
| return -2; |
| } |
| } |
| |
| return EVP_PKEY_CTX_get_params(ctx, params); |
| } |
| |
| int EVP_PKEY_CTX_get_signature_md(EVP_PKEY_CTX *ctx, const EVP_MD **md) |
| { |
| OSSL_PARAM sig_md_params[2], *p = sig_md_params; |
| /* 80 should be big enough */ |
| char name[80] = ""; |
| const EVP_MD *tmp; |
| |
| if (ctx == NULL || !EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx)) { |
| ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED); |
| /* Uses the same return values as EVP_PKEY_CTX_ctrl */ |
| return -2; |
| } |
| |
| if (ctx->op.sig.algctx == NULL) |
| return EVP_PKEY_CTX_ctrl(ctx, -1, EVP_PKEY_OP_TYPE_SIG, |
| EVP_PKEY_CTRL_GET_MD, 0, (void *)(md)); |
| |
| *p++ = OSSL_PARAM_construct_utf8_string(OSSL_SIGNATURE_PARAM_DIGEST, |
| name, |
| sizeof(name)); |
| *p = OSSL_PARAM_construct_end(); |
| |
| if (!EVP_PKEY_CTX_get_params(ctx, sig_md_params)) |
| return 0; |
| |
| tmp = evp_get_digestbyname_ex(ctx->libctx, name); |
| if (tmp == NULL) |
| return 0; |
| |
| *md = tmp; |
| |
| return 1; |
| } |
| |
| static int evp_pkey_ctx_set_md(EVP_PKEY_CTX *ctx, const EVP_MD *md, |
| int fallback, const char *param, int op, |
| int ctrl) |
| { |
| OSSL_PARAM md_params[2], *p = md_params; |
| const char *name; |
| |
| if (ctx == NULL || (ctx->operation & op) == 0) { |
| ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED); |
| /* Uses the same return values as EVP_PKEY_CTX_ctrl */ |
| return -2; |
| } |
| |
| if (fallback) |
| return EVP_PKEY_CTX_ctrl(ctx, -1, op, ctrl, 0, (void *)(md)); |
| |
| if (md == NULL) { |
| name = ""; |
| } else { |
| name = EVP_MD_get0_name(md); |
| } |
| |
| *p++ = OSSL_PARAM_construct_utf8_string(param, |
| /* |
| * Cast away the const. This is read |
| * only so should be safe |
| */ |
| (char *)name, 0); |
| *p = OSSL_PARAM_construct_end(); |
| |
| return EVP_PKEY_CTX_set_params(ctx, md_params); |
| } |
| |
| int EVP_PKEY_CTX_set_signature_md(EVP_PKEY_CTX *ctx, const EVP_MD *md) |
| { |
| return evp_pkey_ctx_set_md(ctx, md, ctx->op.sig.algctx == NULL, |
| OSSL_SIGNATURE_PARAM_DIGEST, |
| EVP_PKEY_OP_TYPE_SIG, EVP_PKEY_CTRL_MD); |
| } |
| |
| int EVP_PKEY_CTX_set_tls1_prf_md(EVP_PKEY_CTX *ctx, const EVP_MD *md) |
| { |
| return evp_pkey_ctx_set_md(ctx, md, ctx->op.kex.algctx == NULL, |
| OSSL_KDF_PARAM_DIGEST, |
| EVP_PKEY_OP_DERIVE, EVP_PKEY_CTRL_TLS_MD); |
| } |
| |
| static int evp_pkey_ctx_set1_octet_string(EVP_PKEY_CTX *ctx, int fallback, |
| const char *param, int op, int ctrl, |
| const unsigned char *data, |
| int datalen) |
| { |
| OSSL_PARAM octet_string_params[2], *p = octet_string_params; |
| |
| if (ctx == NULL || (ctx->operation & op) == 0) { |
| ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED); |
| /* Uses the same return values as EVP_PKEY_CTX_ctrl */ |
| return -2; |
| } |
| |
| /* Code below to be removed when legacy support is dropped. */ |
| if (fallback) |
| return EVP_PKEY_CTX_ctrl(ctx, -1, op, ctrl, datalen, (void *)(data)); |
| /* end of legacy support */ |
| |
| if (datalen < 0) { |
| ERR_raise(ERR_LIB_EVP, EVP_R_INVALID_LENGTH); |
| return 0; |
| } |
| |
| *p++ = OSSL_PARAM_construct_octet_string(param, |
| /* |
| * Cast away the const. This is read |
| * only so should be safe |
| */ |
| (unsigned char *)data, |
| (size_t)datalen); |
| *p = OSSL_PARAM_construct_end(); |
| |
| return EVP_PKEY_CTX_set_params(ctx, octet_string_params); |
| } |
| |
| int EVP_PKEY_CTX_set1_tls1_prf_secret(EVP_PKEY_CTX *ctx, |
| const unsigned char *sec, int seclen) |
| { |
| return evp_pkey_ctx_set1_octet_string(ctx, ctx->op.kex.algctx == NULL, |
| OSSL_KDF_PARAM_SECRET, |
| EVP_PKEY_OP_DERIVE, |
| EVP_PKEY_CTRL_TLS_SECRET, |
| sec, seclen); |
| } |
| |
| int EVP_PKEY_CTX_add1_tls1_prf_seed(EVP_PKEY_CTX *ctx, |
| const unsigned char *seed, int seedlen) |
| { |
| return evp_pkey_ctx_set1_octet_string(ctx, ctx->op.kex.algctx == NULL, |
| OSSL_KDF_PARAM_SEED, |
| EVP_PKEY_OP_DERIVE, |
| EVP_PKEY_CTRL_TLS_SEED, |
| seed, seedlen); |
| } |
| |
| int EVP_PKEY_CTX_set_hkdf_md(EVP_PKEY_CTX *ctx, const EVP_MD *md) |
| { |
| return evp_pkey_ctx_set_md(ctx, md, ctx->op.kex.algctx == NULL, |
| OSSL_KDF_PARAM_DIGEST, |
| EVP_PKEY_OP_DERIVE, EVP_PKEY_CTRL_HKDF_MD); |
| } |
| |
| int EVP_PKEY_CTX_set1_hkdf_salt(EVP_PKEY_CTX *ctx, |
| const unsigned char *salt, int saltlen) |
| { |
| return evp_pkey_ctx_set1_octet_string(ctx, ctx->op.kex.algctx == NULL, |
| OSSL_KDF_PARAM_SALT, |
| EVP_PKEY_OP_DERIVE, |
| EVP_PKEY_CTRL_HKDF_SALT, |
| salt, saltlen); |
| } |
| |
| int EVP_PKEY_CTX_set1_hkdf_key(EVP_PKEY_CTX *ctx, |
| const unsigned char *key, int keylen) |
| { |
| return evp_pkey_ctx_set1_octet_string(ctx, ctx->op.kex.algctx == NULL, |
| OSSL_KDF_PARAM_KEY, |
| EVP_PKEY_OP_DERIVE, |
| EVP_PKEY_CTRL_HKDF_KEY, |
| key, keylen); |
| } |
| |
| int EVP_PKEY_CTX_add1_hkdf_info(EVP_PKEY_CTX *ctx, |
| const unsigned char *info, int infolen) |
| { |
| return evp_pkey_ctx_set1_octet_string(ctx, ctx->op.kex.algctx == NULL, |
| OSSL_KDF_PARAM_INFO, |
| EVP_PKEY_OP_DERIVE, |
| EVP_PKEY_CTRL_HKDF_INFO, |
| info, infolen); |
| } |
| |
| int EVP_PKEY_CTX_set_hkdf_mode(EVP_PKEY_CTX *ctx, int mode) |
| { |
| OSSL_PARAM int_params[2], *p = int_params; |
| |
| if (ctx == NULL || !EVP_PKEY_CTX_IS_DERIVE_OP(ctx)) { |
| ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED); |
| /* Uses the same return values as EVP_PKEY_CTX_ctrl */ |
| return -2; |
| } |
| |
| /* Code below to be removed when legacy support is dropped. */ |
| if (ctx->op.kex.algctx == NULL) |
| return EVP_PKEY_CTX_ctrl(ctx, -1, EVP_PKEY_OP_DERIVE, |
| EVP_PKEY_CTRL_HKDF_MODE, mode, NULL); |
| /* end of legacy support */ |
| |
| if (mode < 0) { |
| ERR_raise(ERR_LIB_EVP, EVP_R_INVALID_VALUE); |
| return 0; |
| } |
| |
| *p++ = OSSL_PARAM_construct_int(OSSL_KDF_PARAM_MODE, &mode); |
| *p = OSSL_PARAM_construct_end(); |
| |
| return EVP_PKEY_CTX_set_params(ctx, int_params); |
| } |
| |
| int EVP_PKEY_CTX_set1_pbe_pass(EVP_PKEY_CTX *ctx, const char *pass, |
| int passlen) |
| { |
| return evp_pkey_ctx_set1_octet_string(ctx, ctx->op.kex.algctx == NULL, |
| OSSL_KDF_PARAM_PASSWORD, |
| EVP_PKEY_OP_DERIVE, |
| EVP_PKEY_CTRL_PASS, |
| (const unsigned char *)pass, passlen); |
| } |
| |
| int EVP_PKEY_CTX_set1_scrypt_salt(EVP_PKEY_CTX *ctx, |
| const unsigned char *salt, int saltlen) |
| { |
| return evp_pkey_ctx_set1_octet_string(ctx, ctx->op.kex.algctx == NULL, |
| OSSL_KDF_PARAM_SALT, |
| EVP_PKEY_OP_DERIVE, |
| EVP_PKEY_CTRL_SCRYPT_SALT, |
| salt, saltlen); |
| } |
| |
| static int evp_pkey_ctx_set_uint64(EVP_PKEY_CTX *ctx, const char *param, |
| int op, int ctrl, uint64_t val) |
| { |
| OSSL_PARAM uint64_params[2], *p = uint64_params; |
| |
| if (ctx == NULL || !EVP_PKEY_CTX_IS_DERIVE_OP(ctx)) { |
| ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED); |
| /* Uses the same return values as EVP_PKEY_CTX_ctrl */ |
| return -2; |
| } |
| |
| /* Code below to be removed when legacy support is dropped. */ |
| if (ctx->op.kex.algctx == NULL) |
| return EVP_PKEY_CTX_ctrl_uint64(ctx, -1, op, ctrl, val); |
| /* end of legacy support */ |
| |
| *p++ = OSSL_PARAM_construct_uint64(param, &val); |
| *p = OSSL_PARAM_construct_end(); |
| |
| return EVP_PKEY_CTX_set_params(ctx, uint64_params); |
| } |
| |
| int EVP_PKEY_CTX_set_scrypt_N(EVP_PKEY_CTX *ctx, uint64_t n) |
| { |
| return evp_pkey_ctx_set_uint64(ctx, OSSL_KDF_PARAM_SCRYPT_N, |
| EVP_PKEY_OP_DERIVE, EVP_PKEY_CTRL_SCRYPT_N, |
| n); |
| } |
| |
| int EVP_PKEY_CTX_set_scrypt_r(EVP_PKEY_CTX *ctx, uint64_t r) |
| { |
| return evp_pkey_ctx_set_uint64(ctx, OSSL_KDF_PARAM_SCRYPT_R, |
| EVP_PKEY_OP_DERIVE, EVP_PKEY_CTRL_SCRYPT_R, |
| r); |
| } |
| |
| int EVP_PKEY_CTX_set_scrypt_p(EVP_PKEY_CTX *ctx, uint64_t p) |
| { |
| return evp_pkey_ctx_set_uint64(ctx, OSSL_KDF_PARAM_SCRYPT_P, |
| EVP_PKEY_OP_DERIVE, EVP_PKEY_CTRL_SCRYPT_P, |
| p); |
| } |
| |
| int EVP_PKEY_CTX_set_scrypt_maxmem_bytes(EVP_PKEY_CTX *ctx, |
| uint64_t maxmem_bytes) |
| { |
| return evp_pkey_ctx_set_uint64(ctx, OSSL_KDF_PARAM_SCRYPT_MAXMEM, |
| EVP_PKEY_OP_DERIVE, |
| EVP_PKEY_CTRL_SCRYPT_MAXMEM_BYTES, |
| maxmem_bytes); |
| } |
| |
| int EVP_PKEY_CTX_set_mac_key(EVP_PKEY_CTX *ctx, const unsigned char *key, |
| int keylen) |
| { |
| return evp_pkey_ctx_set1_octet_string(ctx, ctx->op.keymgmt.genctx == NULL, |
| OSSL_PKEY_PARAM_PRIV_KEY, |
| EVP_PKEY_OP_KEYGEN, |
| EVP_PKEY_CTRL_SET_MAC_KEY, |
| key, keylen); |
| } |
| |
| int EVP_PKEY_CTX_set_kem_op(EVP_PKEY_CTX *ctx, const char *op) |
| { |
| OSSL_PARAM params[2], *p = params; |
| |
| if (ctx == NULL || op == NULL) { |
| ERR_raise(ERR_LIB_EVP, EVP_R_INVALID_VALUE); |
| return 0; |
| } |
| if (!EVP_PKEY_CTX_IS_KEM_OP(ctx)) { |
| ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED); |
| return -2; |
| } |
| *p++ = OSSL_PARAM_construct_utf8_string(OSSL_KEM_PARAM_OPERATION, |
| (char *)op, 0); |
| *p = OSSL_PARAM_construct_end(); |
| return EVP_PKEY_CTX_set_params(ctx, params); |
| } |
| |
| int evp_pkey_ctx_set1_id_prov(EVP_PKEY_CTX *ctx, const void *id, int len) |
| { |
| OSSL_PARAM params[2], *p = params; |
| int ret; |
| |
| if (!EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx)) { |
| ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED); |
| /* Uses the same return values as EVP_PKEY_CTX_ctrl */ |
| return -2; |
| } |
| |
| *p++ = OSSL_PARAM_construct_octet_string(OSSL_PKEY_PARAM_DIST_ID, |
| /* |
| * Cast away the const. This is |
| * read only so should be safe |
| */ |
| (void *)id, (size_t)len); |
| *p++ = OSSL_PARAM_construct_end(); |
| |
| ret = evp_pkey_ctx_set_params_strict(ctx, params); |
| if (ret == -2) |
| ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED); |
| return ret; |
| } |
| |
| int EVP_PKEY_CTX_set1_id(EVP_PKEY_CTX *ctx, const void *id, int len) |
| { |
| return EVP_PKEY_CTX_ctrl(ctx, -1, -1, |
| EVP_PKEY_CTRL_SET1_ID, (int)len, (void*)(id)); |
| } |
| |
| static int get1_id_data(EVP_PKEY_CTX *ctx, void *id, size_t *id_len) |
| { |
| int ret; |
| void *tmp_id = NULL; |
| OSSL_PARAM params[2], *p = params; |
| |
| if (!EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx)) { |
| ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED); |
| /* Uses the same return values as EVP_PKEY_CTX_ctrl */ |
| return -2; |
| } |
| |
| *p++ = OSSL_PARAM_construct_octet_ptr(OSSL_PKEY_PARAM_DIST_ID, |
| &tmp_id, 0); |
| *p++ = OSSL_PARAM_construct_end(); |
| |
| ret = evp_pkey_ctx_get_params_strict(ctx, params); |
| if (ret == -2) { |
| ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED); |
| } else if (ret > 0) { |
| size_t tmp_id_len = params[0].return_size; |
| |
| if (id != NULL) |
| memcpy(id, tmp_id, tmp_id_len); |
| if (id_len != NULL) |
| *id_len = tmp_id_len; |
| } |
| return ret; |
| } |
| |
| int evp_pkey_ctx_get1_id_prov(EVP_PKEY_CTX *ctx, void *id) |
| { |
| return get1_id_data(ctx, id, NULL); |
| } |
| |
| int evp_pkey_ctx_get1_id_len_prov(EVP_PKEY_CTX *ctx, size_t *id_len) |
| { |
| return get1_id_data(ctx, NULL, id_len); |
| } |
| |
| int EVP_PKEY_CTX_get1_id(EVP_PKEY_CTX *ctx, void *id) |
| { |
| return EVP_PKEY_CTX_ctrl(ctx, -1, -1, EVP_PKEY_CTRL_GET1_ID, 0, (void*)id); |
| } |
| |
| int EVP_PKEY_CTX_get1_id_len(EVP_PKEY_CTX *ctx, size_t *id_len) |
| { |
| return EVP_PKEY_CTX_ctrl(ctx, -1, -1, |
| EVP_PKEY_CTRL_GET1_ID_LEN, 0, (void*)id_len); |
| } |
| |
| static int evp_pkey_ctx_ctrl_int(EVP_PKEY_CTX *ctx, int keytype, int optype, |
| int cmd, int p1, void *p2) |
| { |
| int ret = 0; |
| |
| /* |
| * If the method has a |digest_custom| function, we can relax the |
| * operation type check, since this can be called before the operation |
| * is initialized. |
| */ |
| if (ctx->pmeth == NULL || ctx->pmeth->digest_custom == NULL) { |
| if (ctx->operation == EVP_PKEY_OP_UNDEFINED) { |
| ERR_raise(ERR_LIB_EVP, EVP_R_NO_OPERATION_SET); |
| return -1; |
| } |
| |
| if ((optype != -1) && !(ctx->operation & optype)) { |
| ERR_raise(ERR_LIB_EVP, EVP_R_INVALID_OPERATION); |
| return -1; |
| } |
| } |
| |
| switch (evp_pkey_ctx_state(ctx)) { |
| case EVP_PKEY_STATE_PROVIDER: |
| return evp_pkey_ctx_ctrl_to_param(ctx, keytype, optype, cmd, p1, p2); |
| case EVP_PKEY_STATE_UNKNOWN: |
| case EVP_PKEY_STATE_LEGACY: |
| if (ctx->pmeth == NULL || ctx->pmeth->ctrl == NULL) { |
| ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED); |
| return -2; |
| } |
| if ((keytype != -1) && (ctx->pmeth->pkey_id != keytype)) |
| return -1; |
| |
| ret = ctx->pmeth->ctrl(ctx, cmd, p1, p2); |
| |
| if (ret == -2) |
| ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED); |
| break; |
| } |
| return ret; |
| } |
| |
| int EVP_PKEY_CTX_ctrl(EVP_PKEY_CTX *ctx, int keytype, int optype, |
| int cmd, int p1, void *p2) |
| { |
| int ret = 0; |
| |
| if (ctx == NULL) { |
| ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED); |
| return -2; |
| } |
| /* If unsupported, we don't want that reported here */ |
| ERR_set_mark(); |
| ret = evp_pkey_ctx_store_cached_data(ctx, keytype, optype, |
| cmd, NULL, p2, p1); |
| if (ret == -2) { |
| ERR_pop_to_mark(); |
| } else { |
| ERR_clear_last_mark(); |
| /* |
| * If there was an error, there was an error. |
| * If the operation isn't initialized yet, we also return, as |
| * the saved values will be used then anyway. |
| */ |
| if (ret < 1 || ctx->operation == EVP_PKEY_OP_UNDEFINED) |
| return ret; |
| } |
| return evp_pkey_ctx_ctrl_int(ctx, keytype, optype, cmd, p1, p2); |
| } |
| |
| int EVP_PKEY_CTX_ctrl_uint64(EVP_PKEY_CTX *ctx, int keytype, int optype, |
| int cmd, uint64_t value) |
| { |
| return EVP_PKEY_CTX_ctrl(ctx, keytype, optype, cmd, 0, &value); |
| } |
| |
| |
| static int evp_pkey_ctx_ctrl_str_int(EVP_PKEY_CTX *ctx, |
| const char *name, const char *value) |
| { |
| int ret = 0; |
| |
| if (ctx == NULL) { |
| ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED); |
| return -2; |
| } |
| |
| switch (evp_pkey_ctx_state(ctx)) { |
| case EVP_PKEY_STATE_PROVIDER: |
| return evp_pkey_ctx_ctrl_str_to_param(ctx, name, value); |
| case EVP_PKEY_STATE_UNKNOWN: |
| case EVP_PKEY_STATE_LEGACY: |
| if (ctx == NULL || ctx->pmeth == NULL || ctx->pmeth->ctrl_str == NULL) { |
| ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED); |
| return -2; |
| } |
| if (strcmp(name, "digest") == 0) |
| ret = EVP_PKEY_CTX_md(ctx, |
| EVP_PKEY_OP_TYPE_SIG | EVP_PKEY_OP_TYPE_CRYPT, |
| EVP_PKEY_CTRL_MD, value); |
| else |
| ret = ctx->pmeth->ctrl_str(ctx, name, value); |
| break; |
| } |
| |
| return ret; |
| } |
| |
| int EVP_PKEY_CTX_ctrl_str(EVP_PKEY_CTX *ctx, |
| const char *name, const char *value) |
| { |
| int ret = 0; |
| |
| /* If unsupported, we don't want that reported here */ |
| ERR_set_mark(); |
| ret = evp_pkey_ctx_store_cached_data(ctx, -1, -1, -1, |
| name, value, strlen(value) + 1); |
| if (ret == -2) { |
| ERR_pop_to_mark(); |
| } else { |
| ERR_clear_last_mark(); |
| /* |
| * If there was an error, there was an error. |
| * If the operation isn't initialized yet, we also return, as |
| * the saved values will be used then anyway. |
| */ |
| if (ret < 1 || ctx->operation == EVP_PKEY_OP_UNDEFINED) |
| return ret; |
| } |
| |
| return evp_pkey_ctx_ctrl_str_int(ctx, name, value); |
| } |
| |
| static int decode_cmd(int cmd, const char *name) |
| { |
| if (cmd == -1) { |
| /* |
| * The consequence of the assertion not being true is that this |
| * function will return -1, which will cause the calling functions |
| * to signal that the command is unsupported... in non-debug mode. |
| */ |
| if (ossl_assert(name != NULL)) |
| if (strcmp(name, "distid") == 0 || strcmp(name, "hexdistid") == 0) |
| cmd = EVP_PKEY_CTRL_SET1_ID; |
| } |
| |
| return cmd; |
| } |
| |
| static int evp_pkey_ctx_store_cached_data(EVP_PKEY_CTX *ctx, |
| int keytype, int optype, |
| int cmd, const char *name, |
| const void *data, size_t data_len) |
| { |
| /* |
| * Check that it's one of the supported commands. The ctrl commands |
| * number cases here must correspond to the cases in the bottom switch |
| * in this function. |
| */ |
| switch (cmd = decode_cmd(cmd, name)) { |
| case EVP_PKEY_CTRL_SET1_ID: |
| break; |
| default: |
| ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED); |
| return -2; |
| } |
| |
| if (keytype != -1) { |
| switch (evp_pkey_ctx_state(ctx)) { |
| case EVP_PKEY_STATE_PROVIDER: |
| if (ctx->keymgmt == NULL) { |
| ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED); |
| return -2; |
| } |
| if (!EVP_KEYMGMT_is_a(ctx->keymgmt, |
| evp_pkey_type2name(keytype))) { |
| ERR_raise(ERR_LIB_EVP, EVP_R_INVALID_OPERATION); |
| return -1; |
| } |
| break; |
| case EVP_PKEY_STATE_UNKNOWN: |
| case EVP_PKEY_STATE_LEGACY: |
| if (ctx->pmeth == NULL) { |
| ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED); |
| return -2; |
| } |
| if (EVP_PKEY_type(ctx->pmeth->pkey_id) != EVP_PKEY_type(keytype)) { |
| ERR_raise(ERR_LIB_EVP, EVP_R_INVALID_OPERATION); |
| return -1; |
| } |
| break; |
| } |
| } |
| if (optype != -1 && (ctx->operation & optype) == 0) { |
| ERR_raise(ERR_LIB_EVP, EVP_R_INVALID_OPERATION); |
| return -1; |
| } |
| |
| switch (cmd) { |
| case EVP_PKEY_CTRL_SET1_ID: |
| evp_pkey_ctx_free_cached_data(ctx, cmd, name); |
| if (name != NULL) { |
| ctx->cached_parameters.dist_id_name = OPENSSL_strdup(name); |
| if (ctx->cached_parameters.dist_id_name == NULL) { |
| ERR_raise(ERR_LIB_EVP, ERR_R_MALLOC_FAILURE); |
| return 0; |
| } |
| } |
| if (data_len > 0) { |
| ctx->cached_parameters.dist_id = OPENSSL_memdup(data, data_len); |
| if (ctx->cached_parameters.dist_id == NULL) { |
| ERR_raise(ERR_LIB_EVP, ERR_R_MALLOC_FAILURE); |
| return 0; |
| } |
| } |
| ctx->cached_parameters.dist_id_set = 1; |
| ctx->cached_parameters.dist_id_len = data_len; |
| break; |
| } |
| return 1; |
| } |
| |
| static void evp_pkey_ctx_free_cached_data(EVP_PKEY_CTX *ctx, |
| int cmd, const char *name) |
| { |
| cmd = decode_cmd(cmd, name); |
| switch (cmd) { |
| case EVP_PKEY_CTRL_SET1_ID: |
| OPENSSL_free(ctx->cached_parameters.dist_id); |
| OPENSSL_free(ctx->cached_parameters.dist_id_name); |
| ctx->cached_parameters.dist_id = NULL; |
| ctx->cached_parameters.dist_id_name = NULL; |
| break; |
| } |
| } |
| |
| static void evp_pkey_ctx_free_all_cached_data(EVP_PKEY_CTX *ctx) |
| { |
| evp_pkey_ctx_free_cached_data(ctx, EVP_PKEY_CTRL_SET1_ID, NULL); |
| } |
| |
| int evp_pkey_ctx_use_cached_data(EVP_PKEY_CTX *ctx) |
| { |
| int ret = 1; |
| |
| if (ret && ctx->cached_parameters.dist_id_set) { |
| const char *name = ctx->cached_parameters.dist_id_name; |
| const void *val = ctx->cached_parameters.dist_id; |
| size_t len = ctx->cached_parameters.dist_id_len; |
| |
| if (name != NULL) |
| ret = evp_pkey_ctx_ctrl_str_int(ctx, name, val); |
| else |
| ret = evp_pkey_ctx_ctrl_int(ctx, -1, ctx->operation, |
| EVP_PKEY_CTRL_SET1_ID, |
| (int)len, (void *)val); |
| } |
| |
| return ret; |
| } |
| |
| OSSL_LIB_CTX *EVP_PKEY_CTX_get0_libctx(EVP_PKEY_CTX *ctx) |
| { |
| return ctx->libctx; |
| } |
| |
| const char *EVP_PKEY_CTX_get0_propq(const EVP_PKEY_CTX *ctx) |
| { |
| return ctx->propquery; |
| } |
| |
| const OSSL_PROVIDER *EVP_PKEY_CTX_get0_provider(const EVP_PKEY_CTX *ctx) |
| { |
| if (EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx)) { |
| if (ctx->op.sig.signature != NULL) |
| return EVP_SIGNATURE_get0_provider(ctx->op.sig.signature); |
| } else if (EVP_PKEY_CTX_IS_DERIVE_OP(ctx)) { |
| if (ctx->op.kex.exchange != NULL) |
| return EVP_KEYEXCH_get0_provider(ctx->op.kex.exchange); |
| } else if (EVP_PKEY_CTX_IS_KEM_OP(ctx)) { |
| if (ctx->op.encap.kem != NULL) |
| return EVP_KEM_get0_provider(ctx->op.encap.kem); |
| } else if (EVP_PKEY_CTX_IS_ASYM_CIPHER_OP(ctx)) { |
| if (ctx->op.ciph.cipher != NULL) |
| return EVP_ASYM_CIPHER_get0_provider(ctx->op.ciph.cipher); |
| } else if (EVP_PKEY_CTX_IS_GEN_OP(ctx)) { |
| if (ctx->keymgmt != NULL) |
| return EVP_KEYMGMT_get0_provider(ctx->keymgmt); |
| } |
| |
| return NULL; |
| } |
| |
| /* Utility functions to send a string of hex string to a ctrl */ |
| |
| int EVP_PKEY_CTX_str2ctrl(EVP_PKEY_CTX *ctx, int cmd, const char *str) |
| { |
| size_t len; |
| |
| len = strlen(str); |
| if (len > INT_MAX) |
| return -1; |
| return ctx->pmeth->ctrl(ctx, cmd, len, (void *)str); |
| } |
| |
| int EVP_PKEY_CTX_hex2ctrl(EVP_PKEY_CTX *ctx, int cmd, const char *hex) |
| { |
| unsigned char *bin; |
| long binlen; |
| int rv = -1; |
| |
| bin = OPENSSL_hexstr2buf(hex, &binlen); |
| if (bin == NULL) |
| return 0; |
| if (binlen <= INT_MAX) |
| rv = ctx->pmeth->ctrl(ctx, cmd, binlen, bin); |
| OPENSSL_free(bin); |
| return rv; |
| } |
| |
| /* Pass a message digest to a ctrl */ |
| int EVP_PKEY_CTX_md(EVP_PKEY_CTX *ctx, int optype, int cmd, const char *md) |
| { |
| const EVP_MD *m; |
| |
| if (md == NULL || (m = EVP_get_digestbyname(md)) == NULL) { |
| ERR_raise(ERR_LIB_EVP, EVP_R_INVALID_DIGEST); |
| return 0; |
| } |
| return EVP_PKEY_CTX_ctrl(ctx, -1, optype, cmd, 0, (void *)m); |
| } |
| |
| int EVP_PKEY_CTX_get_operation(EVP_PKEY_CTX *ctx) |
| { |
| return ctx->operation; |
| } |
| |
| void EVP_PKEY_CTX_set0_keygen_info(EVP_PKEY_CTX *ctx, int *dat, int datlen) |
| { |
| ctx->keygen_info = dat; |
| ctx->keygen_info_count = datlen; |
| } |
| |
| void EVP_PKEY_CTX_set_data(EVP_PKEY_CTX *ctx, void *data) |
| { |
| ctx->data = data; |
| } |
| |
| void *EVP_PKEY_CTX_get_data(const EVP_PKEY_CTX *ctx) |
| { |
| return ctx->data; |
| } |
| |
| EVP_PKEY *EVP_PKEY_CTX_get0_pkey(EVP_PKEY_CTX *ctx) |
| { |
| return ctx->pkey; |
| } |
| |
| EVP_PKEY *EVP_PKEY_CTX_get0_peerkey(EVP_PKEY_CTX *ctx) |
| { |
| return ctx->peerkey; |
| } |
| |
| void EVP_PKEY_CTX_set_app_data(EVP_PKEY_CTX *ctx, void *data) |
| { |
| ctx->app_data = data; |
| } |
| |
| void *EVP_PKEY_CTX_get_app_data(EVP_PKEY_CTX *ctx) |
| { |
| return ctx->app_data; |
| } |
| |
| void EVP_PKEY_meth_set_init(EVP_PKEY_METHOD *pmeth, |
| int (*init) (EVP_PKEY_CTX *ctx)) |
| { |
| pmeth->init = init; |
| } |
| |
| void EVP_PKEY_meth_set_copy(EVP_PKEY_METHOD *pmeth, |
| int (*copy) (EVP_PKEY_CTX *dst, |
| const EVP_PKEY_CTX *src)) |
| { |
| pmeth->copy = copy; |
| } |
| |
| void EVP_PKEY_meth_set_cleanup(EVP_PKEY_METHOD *pmeth, |
| void (*cleanup) (EVP_PKEY_CTX *ctx)) |
| { |
| pmeth->cleanup = cleanup; |
| } |
| |
| void EVP_PKEY_meth_set_paramgen(EVP_PKEY_METHOD *pmeth, |
| int (*paramgen_init) (EVP_PKEY_CTX *ctx), |
| int (*paramgen) (EVP_PKEY_CTX *ctx, |
| EVP_PKEY *pkey)) |
| { |
| pmeth->paramgen_init = paramgen_init; |
| pmeth->paramgen = paramgen; |
| } |
| |
| void EVP_PKEY_meth_set_keygen(EVP_PKEY_METHOD *pmeth, |
| int (*keygen_init) (EVP_PKEY_CTX *ctx), |
| int (*keygen) (EVP_PKEY_CTX *ctx, |
| EVP_PKEY *pkey)) |
| { |
| pmeth->keygen_init = keygen_init; |
| pmeth->keygen = keygen; |
| } |
| |
| void EVP_PKEY_meth_set_sign(EVP_PKEY_METHOD *pmeth, |
| int (*sign_init) (EVP_PKEY_CTX *ctx), |
| int (*sign) (EVP_PKEY_CTX *ctx, |
| unsigned char *sig, size_t *siglen, |
| const unsigned char *tbs, |
| size_t tbslen)) |
| { |
| pmeth->sign_init = sign_init; |
| pmeth->sign = sign; |
| } |
| |
| void EVP_PKEY_meth_set_verify(EVP_PKEY_METHOD *pmeth, |
| int (*verify_init) (EVP_PKEY_CTX *ctx), |
| int (*verify) (EVP_PKEY_CTX *ctx, |
| const unsigned char *sig, |
| size_t siglen, |
| const unsigned char *tbs, |
| size_t tbslen)) |
| { |
| pmeth->verify_init = verify_init; |
| pmeth->verify = verify; |
| } |
| |
| void EVP_PKEY_meth_set_verify_recover(EVP_PKEY_METHOD *pmeth, |
| int (*verify_recover_init) (EVP_PKEY_CTX |
| *ctx), |
| int (*verify_recover) (EVP_PKEY_CTX |
| *ctx, |
| unsigned char |
| *sig, |
| size_t *siglen, |
| const unsigned |
| char *tbs, |
| size_t tbslen)) |
| { |
| pmeth->verify_recover_init = verify_recover_init; |
| pmeth->verify_recover = verify_recover; |
| } |
| |
| void EVP_PKEY_meth_set_signctx(EVP_PKEY_METHOD *pmeth, |
| int (*signctx_init) (EVP_PKEY_CTX *ctx, |
| EVP_MD_CTX *mctx), |
| int (*signctx) (EVP_PKEY_CTX *ctx, |
| unsigned char *sig, |
| size_t *siglen, |
| EVP_MD_CTX *mctx)) |
| { |
| pmeth->signctx_init = signctx_init; |
| pmeth->signctx = signctx; |
| } |
| |
| void EVP_PKEY_meth_set_verifyctx(EVP_PKEY_METHOD *pmeth, |
| int (*verifyctx_init) (EVP_PKEY_CTX *ctx, |
| EVP_MD_CTX *mctx), |
| int (*verifyctx) (EVP_PKEY_CTX *ctx, |
| const unsigned char *sig, |
| int siglen, |
| EVP_MD_CTX *mctx)) |
| { |
| pmeth->verifyctx_init = verifyctx_init; |
| pmeth->verifyctx = verifyctx; |
| } |
| |
| void EVP_PKEY_meth_set_encrypt(EVP_PKEY_METHOD *pmeth, |
| int (*encrypt_init) (EVP_PKEY_CTX *ctx), |
| int (*encryptfn) (EVP_PKEY_CTX *ctx, |
| unsigned char *out, |
| size_t *outlen, |
| const unsigned char *in, |
| size_t inlen)) |
| { |
| pmeth->encrypt_init = encrypt_init; |
| pmeth->encrypt = encryptfn; |
| } |
| |
| void EVP_PKEY_meth_set_decrypt(EVP_PKEY_METHOD *pmeth, |
| int (*decrypt_init) (EVP_PKEY_CTX *ctx), |
| int (*decrypt) (EVP_PKEY_CTX *ctx, |
| unsigned char *out, |
| size_t *outlen, |
| const unsigned char *in, |
| size_t inlen)) |
| { |
| pmeth->decrypt_init = decrypt_init; |
| pmeth->decrypt = decrypt; |
| } |
| |
| void EVP_PKEY_meth_set_derive(EVP_PKEY_METHOD *pmeth, |
| int (*derive_init) (EVP_PKEY_CTX *ctx), |
| int (*derive) (EVP_PKEY_CTX *ctx, |
| unsigned char *key, |
| size_t *keylen)) |
| { |
| pmeth->derive_init = derive_init; |
| pmeth->derive = derive; |
| } |
| |
| void EVP_PKEY_meth_set_ctrl(EVP_PKEY_METHOD *pmeth, |
| int (*ctrl) (EVP_PKEY_CTX *ctx, int type, int p1, |
| void *p2), |
| int (*ctrl_str) (EVP_PKEY_CTX *ctx, |
| const char *type, |
| const char *value)) |
| { |
| pmeth->ctrl = ctrl; |
| pmeth->ctrl_str = ctrl_str; |
| } |
| |
| void EVP_PKEY_meth_set_digestsign(EVP_PKEY_METHOD *pmeth, |
| int (*digestsign) (EVP_MD_CTX *ctx, unsigned char *sig, size_t *siglen, |
| const unsigned char *tbs, size_t tbslen)) |
| { |
| pmeth->digestsign = digestsign; |
| } |
| |
| void EVP_PKEY_meth_set_digestverify(EVP_PKEY_METHOD *pmeth, |
| int (*digestverify) (EVP_MD_CTX *ctx, const unsigned char *sig, |
| size_t siglen, const unsigned char *tbs, |
| size_t tbslen)) |
| { |
| pmeth->digestverify = digestverify; |
| } |
| |
| void EVP_PKEY_meth_set_check(EVP_PKEY_METHOD *pmeth, |
| int (*check) (EVP_PKEY *pkey)) |
| { |
| pmeth->check = check; |
| } |
| |
| void EVP_PKEY_meth_set_public_check(EVP_PKEY_METHOD *pmeth, |
| int (*check) (EVP_PKEY *pkey)) |
| { |
| pmeth->public_check = check; |
| } |
| |
| void EVP_PKEY_meth_set_param_check(EVP_PKEY_METHOD *pmeth, |
| int (*check) (EVP_PKEY *pkey)) |
| { |
| pmeth->param_check = check; |
| } |
| |
| void EVP_PKEY_meth_set_digest_custom(EVP_PKEY_METHOD *pmeth, |
| int (*digest_custom) (EVP_PKEY_CTX *ctx, |
| EVP_MD_CTX *mctx)) |
| { |
| pmeth->digest_custom = digest_custom; |
| } |
| |
| void EVP_PKEY_meth_get_init(const EVP_PKEY_METHOD *pmeth, |
| int (**pinit) (EVP_PKEY_CTX *ctx)) |
| { |
| *pinit = pmeth->init; |
| } |
| |
| void EVP_PKEY_meth_get_copy(const EVP_PKEY_METHOD *pmeth, |
| int (**pcopy) (EVP_PKEY_CTX *dst, |
| const EVP_PKEY_CTX *src)) |
| { |
| *pcopy = pmeth->copy; |
| } |
| |
| void EVP_PKEY_meth_get_cleanup(const EVP_PKEY_METHOD *pmeth, |
| void (**pcleanup) (EVP_PKEY_CTX *ctx)) |
| { |
| *pcleanup = pmeth->cleanup; |
| } |
| |
| void EVP_PKEY_meth_get_paramgen(const EVP_PKEY_METHOD *pmeth, |
| int (**pparamgen_init) (EVP_PKEY_CTX *ctx), |
| int (**pparamgen) (EVP_PKEY_CTX *ctx, |
| EVP_PKEY *pkey)) |
| { |
| if (pparamgen_init) |
| *pparamgen_init = pmeth->paramgen_init; |
| if (pparamgen) |
| *pparamgen = pmeth->paramgen; |
| } |
| |
| void EVP_PKEY_meth_get_keygen(const EVP_PKEY_METHOD *pmeth, |
| int (**pkeygen_init) (EVP_PKEY_CTX *ctx), |
| int (**pkeygen) (EVP_PKEY_CTX *ctx, |
| EVP_PKEY *pkey)) |
| { |
| if (pkeygen_init) |
| *pkeygen_init = pmeth->keygen_init; |
| if (pkeygen) |
| *pkeygen = pmeth->keygen; |
| } |
| |
| void EVP_PKEY_meth_get_sign(const EVP_PKEY_METHOD *pmeth, |
| int (**psign_init) (EVP_PKEY_CTX *ctx), |
| int (**psign) (EVP_PKEY_CTX *ctx, |
| unsigned char *sig, size_t *siglen, |
| const unsigned char *tbs, |
| size_t tbslen)) |
| { |
| if (psign_init) |
| *psign_init = pmeth->sign_init; |
| if (psign) |
| *psign = pmeth->sign; |
| } |
| |
| void EVP_PKEY_meth_get_verify(const EVP_PKEY_METHOD *pmeth, |
| int (**pverify_init) (EVP_PKEY_CTX *ctx), |
| int (**pverify) (EVP_PKEY_CTX *ctx, |
| const unsigned char *sig, |
| size_t siglen, |
| const unsigned char *tbs, |
| size_t tbslen)) |
| { |
| if (pverify_init) |
| *pverify_init = pmeth->verify_init; |
| if (pverify) |
| *pverify = pmeth->verify; |
| } |
| |
| void EVP_PKEY_meth_get_verify_recover(const EVP_PKEY_METHOD *pmeth, |
| int (**pverify_recover_init) (EVP_PKEY_CTX |
| *ctx), |
| int (**pverify_recover) (EVP_PKEY_CTX |
| *ctx, |
| unsigned char |
| *sig, |
| size_t *siglen, |
| const unsigned |
| char *tbs, |
| size_t tbslen)) |
| { |
| if (pverify_recover_init) |
| *pverify_recover_init = pmeth->verify_recover_init; |
| if (pverify_recover) |
| *pverify_recover = pmeth->verify_recover; |
| } |
| |
| void EVP_PKEY_meth_get_signctx(const EVP_PKEY_METHOD *pmeth, |
| int (**psignctx_init) (EVP_PKEY_CTX *ctx, |
| EVP_MD_CTX *mctx), |
| int (**psignctx) (EVP_PKEY_CTX *ctx, |
| unsigned char *sig, |
| size_t *siglen, |
| EVP_MD_CTX *mctx)) |
| { |
| if (psignctx_init) |
| *psignctx_init = pmeth->signctx_init; |
| if (psignctx) |
| *psignctx = pmeth->signctx; |
| } |
| |
| void EVP_PKEY_meth_get_verifyctx(const EVP_PKEY_METHOD *pmeth, |
| int (**pverifyctx_init) (EVP_PKEY_CTX *ctx, |
| EVP_MD_CTX *mctx), |
| int (**pverifyctx) (EVP_PKEY_CTX *ctx, |
| const unsigned char *sig, |
| int siglen, |
| EVP_MD_CTX *mctx)) |
| { |
| if (pverifyctx_init) |
| *pverifyctx_init = pmeth->verifyctx_init; |
| if (pverifyctx) |
| *pverifyctx = pmeth->verifyctx; |
| } |
| |
| void EVP_PKEY_meth_get_encrypt(const EVP_PKEY_METHOD *pmeth, |
| int (**pencrypt_init) (EVP_PKEY_CTX *ctx), |
| int (**pencryptfn) (EVP_PKEY_CTX *ctx, |
| unsigned char *out, |
| size_t *outlen, |
| const unsigned char *in, |
| size_t inlen)) |
| { |
| if (pencrypt_init) |
| *pencrypt_init = pmeth->encrypt_init; |
| if (pencryptfn) |
| *pencryptfn = pmeth->encrypt; |
| } |
| |
| void EVP_PKEY_meth_get_decrypt(const EVP_PKEY_METHOD *pmeth, |
| int (**pdecrypt_init) (EVP_PKEY_CTX *ctx), |
| int (**pdecrypt) (EVP_PKEY_CTX *ctx, |
| unsigned char *out, |
| size_t *outlen, |
| const unsigned char *in, |
| size_t inlen)) |
| { |
| if (pdecrypt_init) |
| *pdecrypt_init = pmeth->decrypt_init; |
| if (pdecrypt) |
| *pdecrypt = pmeth->decrypt; |
| } |
| |
| void EVP_PKEY_meth_get_derive(const EVP_PKEY_METHOD *pmeth, |
| int (**pderive_init) (EVP_PKEY_CTX *ctx), |
| int (**pderive) (EVP_PKEY_CTX *ctx, |
| unsigned char *key, |
| size_t *keylen)) |
| { |
| if (pderive_init) |
| *pderive_init = pmeth->derive_init; |
| if (pderive) |
| *pderive = pmeth->derive; |
| } |
| |
| void EVP_PKEY_meth_get_ctrl(const EVP_PKEY_METHOD *pmeth, |
| int (**pctrl) (EVP_PKEY_CTX *ctx, int type, int p1, |
| void *p2), |
| int (**pctrl_str) (EVP_PKEY_CTX *ctx, |
| const char *type, |
| const char *value)) |
| { |
| if (pctrl) |
| *pctrl = pmeth->ctrl; |
| if (pctrl_str) |
| *pctrl_str = pmeth->ctrl_str; |
| } |
| |
| void EVP_PKEY_meth_get_digestsign(const EVP_PKEY_METHOD *pmeth, |
| int (**digestsign) (EVP_MD_CTX *ctx, unsigned char *sig, size_t *siglen, |
| const unsigned char *tbs, size_t tbslen)) |
| { |
| if (digestsign) |
| *digestsign = pmeth->digestsign; |
| } |
| |
| void EVP_PKEY_meth_get_digestverify(const EVP_PKEY_METHOD *pmeth, |
| int (**digestverify) (EVP_MD_CTX *ctx, const unsigned char *sig, |
| size_t siglen, const unsigned char *tbs, |
| size_t tbslen)) |
| { |
| if (digestverify) |
| *digestverify = pmeth->digestverify; |
| } |
| |
| void EVP_PKEY_meth_get_check(const EVP_PKEY_METHOD *pmeth, |
| int (**pcheck) (EVP_PKEY *pkey)) |
| { |
| if (pcheck != NULL) |
| *pcheck = pmeth->check; |
| } |
| |
| void EVP_PKEY_meth_get_public_check(const EVP_PKEY_METHOD *pmeth, |
| int (**pcheck) (EVP_PKEY *pkey)) |
| { |
| if (pcheck != NULL) |
| *pcheck = pmeth->public_check; |
| } |
| |
| void EVP_PKEY_meth_get_param_check(const EVP_PKEY_METHOD *pmeth, |
| int (**pcheck) (EVP_PKEY *pkey)) |
| { |
| if (pcheck != NULL) |
| *pcheck = pmeth->param_check; |
| } |
| |
| void EVP_PKEY_meth_get_digest_custom(const EVP_PKEY_METHOD *pmeth, |
| int (**pdigest_custom) (EVP_PKEY_CTX *ctx, |
| EVP_MD_CTX *mctx)) |
| { |
| if (pdigest_custom != NULL) |
| *pdigest_custom = pmeth->digest_custom; |
| } |
| |
| #endif /* FIPS_MODULE */ |
