/* * Copyright 2006-2018 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 */ /* * DH low level APIs are deprecated for public use, but still ok for * internal use. */ #include "internal/deprecated.h" #include #include #include #include #include #include #include #include #include "internal/cryptlib.h" #include "crypto/asn1.h" #include "crypto/evp.h" #include "internal/numbers.h" #include "internal/provider.h" #include "evp_local.h" #ifndef FIPS_MODE 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[] = { # ifndef OPENSSL_NO_RSA rsa_pkey_method, # endif # ifndef OPENSSL_NO_DH dh_pkey_method, # endif # ifndef OPENSSL_NO_DSA dsa_pkey_method, # endif # ifndef OPENSSL_NO_EC ec_pkey_method, # endif hmac_pkey_method, # ifndef OPENSSL_NO_CMAC cmac_pkey_method, # endif # ifndef OPENSSL_NO_RSA rsa_pss_pkey_method, # endif # ifndef OPENSSL_NO_DH dhx_pkey_method, # endif # ifndef OPENSSL_NO_SCRYPT scrypt_pkey_method, # endif tls1_prf_pkey_method, # ifndef OPENSSL_NO_EC ecx25519_pkey_method, ecx448_pkey_method, # endif hkdf_pkey_method, # ifndef OPENSSL_NO_POLY1305 poly1305_pkey_method, # endif # ifndef OPENSSL_NO_SIPHASH siphash_pkey_method, # endif # ifndef OPENSSL_NO_EC ed25519_pkey_method, ed448_pkey_method, # endif # ifndef OPENSSL_NO_SM2 sm2_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); } const EVP_PKEY_METHOD *EVP_PKEY_meth_find(int type) { pmeth_fn *ret; EVP_PKEY_METHOD tmp; const EVP_PKEY_METHOD *t = &tmp; tmp.pkey_id = type; if (app_pkey_methods) { int idx; idx = sk_EVP_PKEY_METHOD_find(app_pkey_methods, &tmp); if (idx >= 0) return sk_EVP_PKEY_METHOD_value(app_pkey_methods, idx); } ret = OBJ_bsearch_pmeth_func(&t, standard_methods, sizeof(standard_methods) / sizeof(pmeth_fn)); 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) { EVPerr(EVP_F_EVP_PKEY_METH_NEW, ERR_R_MALLOC_FAILURE); return NULL; } pmeth->pkey_id = id; pmeth->flags = flags | EVP_PKEY_FLAG_DYNAMIC; return pmeth; } #endif /* FIPS_MODE */ static EVP_PKEY_CTX *int_ctx_new(OPENSSL_CTX *libctx, EVP_PKEY *pkey, ENGINE *e, const char *keytype, const char *propquery, int id) { EVP_PKEY_CTX *ret; const EVP_PKEY_METHOD *pmeth = NULL; EVP_KEYMGMT *keymgmt = NULL; /* * When using providers, the context is bound to the algo implementation * later. */ if (pkey == NULL && e == NULL && id == -1) goto common; /* * If the key doesn't contain anything legacy, then it must be provided, * so we extract the necessary information and use that. */ if (pkey != NULL && pkey->type == EVP_PKEY_NONE) { /* If we have an engine, something went wrong somewhere... */ if (!ossl_assert(e == NULL)) return NULL; keytype = evp_first_name(pkey->keymgmt->prov, pkey->keymgmt->name_id); goto common; } #ifndef FIPS_MODE /* TODO(3.0) Legacy code should be removed when all is provider based */ /* BEGIN legacy */ if (id == -1) { if (pkey == NULL) return NULL; id = pkey->type; } /* * 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 only set the name when no engine is * given. If both are already given, someone made a mistake, and * since that can only happen internally, it's safe to make an * assertion. */ if (!ossl_assert(e == NULL || keytype == NULL)) return NULL; if (e == NULL) 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) { if (!ENGINE_init(e)) { EVPerr(EVP_F_INT_CTX_NEW, 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) pmeth = ENGINE_get_pkey_meth(e, id); else # endif pmeth = EVP_PKEY_meth_find(id); if (pmeth == NULL) { # ifndef OPENSSL_NO_ENGINE ENGINE_finish(e); # endif EVPerr(EVP_F_INT_CTX_NEW, EVP_R_UNSUPPORTED_ALGORITHM); return NULL; } /* END legacy */ #endif /* FIPS_MODE */ common: /* * If there's no engine and there's a name, we try fetching a provider * implementation. */ if (e == NULL && keytype != NULL) { /* This could fail so ignore errors */ ERR_set_mark(); keymgmt = EVP_KEYMGMT_fetch(libctx, keytype, propquery); ERR_pop_to_mark(); } ret = OPENSSL_zalloc(sizeof(*ret)); if (ret == NULL) { #if !defined(OPENSSL_NO_ENGINE) && !defined(FIPS_MODE) ENGINE_finish(e); #endif EVPerr(EVP_F_INT_CTX_NEW, ERR_R_MALLOC_FAILURE); return NULL; } ret->libctx = libctx; ret->propquery = propquery; ret->keytype = keytype; ret->keymgmt = keymgmt; 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_MODE */ EVP_PKEY_CTX *EVP_PKEY_CTX_new_from_name(OPENSSL_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(OPENSSL_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.sigprovctx != NULL && ctx->op.sig.signature != NULL) ctx->op.sig.signature->freectx(ctx->op.sig.sigprovctx); EVP_SIGNATURE_free(ctx->op.sig.signature); ctx->op.sig.sigprovctx = NULL; ctx->op.sig.signature = NULL; } else if (EVP_PKEY_CTX_IS_DERIVE_OP(ctx)) { if (ctx->op.kex.exchprovctx != NULL && ctx->op.kex.exchange != NULL) ctx->op.kex.exchange->freectx(ctx->op.kex.exchprovctx); EVP_KEYEXCH_free(ctx->op.kex.exchange); ctx->op.kex.exchprovctx = NULL; ctx->op.kex.exchange = NULL; } /* TODO(3.0): add dependancies and uncomment this when available for fips mode */ #ifndef FIPS_MODE else if (EVP_PKEY_CTX_IS_ASYM_CIPHER_OP(ctx)) { if (ctx->op.ciph.ciphprovctx != NULL && ctx->op.ciph.cipher != NULL) ctx->op.ciph.cipher->freectx(ctx->op.ciph.ciphprovctx); EVP_ASYM_CIPHER_free(ctx->op.ciph.cipher); ctx->op.ciph.ciphprovctx = 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); } #endif } 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); EVP_KEYMGMT_free(ctx->keymgmt); EVP_PKEY_free(ctx->pkey); EVP_PKEY_free(ctx->peerkey); #if !defined(OPENSSL_NO_ENGINE) && !defined(FIPS_MODE) ENGINE_finish(ctx->engine); #endif OPENSSL_free(ctx); } #ifndef FIPS_MODE 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) { dst->init = src->init; dst->copy = src->copy; dst->cleanup = src->cleanup; dst->paramgen_init = src->paramgen_init; dst->paramgen = src->paramgen; dst->keygen_init = src->keygen_init; dst->keygen = src->keygen; dst->sign_init = src->sign_init; dst->sign = src->sign; dst->verify_init = src->verify_init; dst->verify = src->verify; dst->verify_recover_init = src->verify_recover_init; dst->verify_recover = src->verify_recover; dst->signctx_init = src->signctx_init; dst->signctx = src->signctx; dst->verifyctx_init = src->verifyctx_init; dst->verifyctx = src->verifyctx; dst->encrypt_init = src->encrypt_init; dst->encrypt = src->encrypt; dst->decrypt_init = src->decrypt_init; dst->decrypt = src->decrypt; dst->derive_init = src->derive_init; dst->derive = src->derive; dst->ctrl = src->ctrl; dst->ctrl_str = src->ctrl_str; dst->check = src->check; } 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; if (((pctx->pmeth == NULL) || (pctx->pmeth->copy == NULL)) && ((EVP_PKEY_CTX_IS_DERIVE_OP(pctx) && pctx->op.kex.exchprovctx == NULL) || (EVP_PKEY_CTX_IS_SIGNATURE_OP(pctx) && pctx->op.sig.sigprovctx == NULL))) return NULL; # ifndef OPENSSL_NO_ENGINE /* Make sure it's safe to copy a pkey context using an ENGINE */ if (pctx->engine && !ENGINE_init(pctx->engine)) { EVPerr(EVP_F_EVP_PKEY_CTX_DUP, ERR_R_ENGINE_LIB); return 0; } # endif rctx = OPENSSL_zalloc(sizeof(*rctx)); if (rctx == NULL) { EVPerr(EVP_F_EVP_PKEY_CTX_DUP, 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 = pctx->propquery; 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)) { OPENSSL_free(rctx); return NULL; } } if (pctx->op.kex.exchprovctx != NULL) { if (!ossl_assert(pctx->op.kex.exchange != NULL)) return NULL; rctx->op.kex.exchprovctx = pctx->op.kex.exchange->dupctx(pctx->op.kex.exchprovctx); if (rctx->op.kex.exchprovctx == NULL) { EVP_KEYEXCH_free(rctx->op.kex.exchange); OPENSSL_free(rctx); return NULL; } 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)) { OPENSSL_free(rctx); return NULL; } } if (pctx->op.sig.sigprovctx != NULL) { if (!ossl_assert(pctx->op.sig.signature != NULL)) return NULL; rctx->op.sig.sigprovctx = pctx->op.sig.signature->dupctx(pctx->op.sig.sigprovctx); if (rctx->op.sig.sigprovctx == NULL) { EVP_SIGNATURE_free(rctx->op.sig.signature); OPENSSL_free(rctx); return NULL; } 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)) { OPENSSL_free(rctx); return NULL; } } if (pctx->op.ciph.ciphprovctx != NULL) { if (!ossl_assert(pctx->op.ciph.cipher != NULL)) return NULL; rctx->op.ciph.ciphprovctx = pctx->op.ciph.cipher->dupctx(pctx->op.ciph.ciphprovctx); if (rctx->op.ciph.ciphprovctx == NULL) { EVP_ASYM_CIPHER_free(rctx->op.ciph.cipher); OPENSSL_free(rctx); return NULL; } return rctx; } } rctx->pmeth = pctx->pmeth; # ifndef OPENSSL_NO_ENGINE rctx->engine = pctx->engine; # endif if (pctx->peerkey) EVP_PKEY_up_ref(pctx->peerkey); rctx->peerkey = pctx->peerkey; if (pctx->pmeth->copy(rctx, pctx) > 0) return rctx; 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){ EVPerr(EVP_F_EVP_PKEY_METH_ADD0, ERR_R_MALLOC_FAILURE); return 0; } } if (!sk_EVP_PKEY_METHOD_push(app_pkey_methods, pmeth)) { EVPerr(EVP_F_EVP_PKEY_METH_ADD0, 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_set_params(EVP_PKEY_CTX *ctx, OSSL_PARAM *params) { if (EVP_PKEY_CTX_IS_DERIVE_OP(ctx) && ctx->op.kex.exchprovctx != NULL && ctx->op.kex.exchange != NULL && ctx->op.kex.exchange->set_ctx_params != NULL) return ctx->op.kex.exchange->set_ctx_params(ctx->op.kex.exchprovctx, params); if (EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx) && ctx->op.sig.sigprovctx != NULL && ctx->op.sig.signature != NULL && ctx->op.sig.signature->set_ctx_params != NULL) return ctx->op.sig.signature->set_ctx_params(ctx->op.sig.sigprovctx, params); if (EVP_PKEY_CTX_IS_ASYM_CIPHER_OP(ctx) && ctx->op.ciph.ciphprovctx != NULL && ctx->op.ciph.cipher != NULL && ctx->op.ciph.cipher->set_ctx_params != NULL) return ctx->op.ciph.cipher->set_ctx_params(ctx->op.ciph.ciphprovctx, params); if (EVP_PKEY_CTX_IS_GEN_OP(ctx) && ctx->op.keymgmt.genctx != NULL && ctx->keymgmt != NULL && ctx->keymgmt->gen_set_params != NULL) return evp_keymgmt_gen_set_params(ctx->keymgmt, ctx->op.keymgmt.genctx, params); return 0; } #ifndef FIPS_MODE int EVP_PKEY_CTX_get_params(EVP_PKEY_CTX *ctx, OSSL_PARAM *params) { if (EVP_PKEY_CTX_IS_DERIVE_OP(ctx) && ctx->op.kex.exchprovctx != NULL && ctx->op.kex.exchange != NULL && ctx->op.kex.exchange->get_ctx_params != NULL) return ctx->op.kex.exchange->get_ctx_params(ctx->op.kex.exchprovctx, params); if (EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx) && ctx->op.sig.sigprovctx != NULL && ctx->op.sig.signature != NULL && ctx->op.sig.signature->get_ctx_params != NULL) return ctx->op.sig.signature->get_ctx_params(ctx->op.sig.sigprovctx, params); if (EVP_PKEY_CTX_IS_ASYM_CIPHER_OP(ctx) && ctx->op.ciph.ciphprovctx != NULL && ctx->op.ciph.cipher != NULL && ctx->op.ciph.cipher->get_ctx_params != NULL) return ctx->op.ciph.cipher->get_ctx_params(ctx->op.ciph.ciphprovctx, params); return 0; } const OSSL_PARAM *EVP_PKEY_CTX_gettable_params(EVP_PKEY_CTX *ctx) { if (EVP_PKEY_CTX_IS_DERIVE_OP(ctx) && ctx->op.kex.exchange != NULL && ctx->op.kex.exchange->gettable_ctx_params != NULL) return ctx->op.kex.exchange->gettable_ctx_params(); if (EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx) && ctx->op.sig.signature != NULL && ctx->op.sig.signature->gettable_ctx_params != NULL) return ctx->op.sig.signature->gettable_ctx_params(); if (EVP_PKEY_CTX_IS_ASYM_CIPHER_OP(ctx) && ctx->op.ciph.cipher != NULL && ctx->op.ciph.cipher->gettable_ctx_params != NULL) return ctx->op.ciph.cipher->gettable_ctx_params(); return NULL; } const OSSL_PARAM *EVP_PKEY_CTX_settable_params(EVP_PKEY_CTX *ctx) { if (EVP_PKEY_CTX_IS_DERIVE_OP(ctx) && ctx->op.kex.exchange != NULL && ctx->op.kex.exchange->settable_ctx_params != NULL) return ctx->op.kex.exchange->settable_ctx_params(); if (EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx) && ctx->op.sig.signature != NULL && ctx->op.sig.signature->settable_ctx_params != NULL) return ctx->op.sig.signature->settable_ctx_params(); if (EVP_PKEY_CTX_IS_ASYM_CIPHER_OP(ctx) && ctx->op.ciph.cipher != NULL && ctx->op.ciph.cipher->settable_ctx_params != NULL) return ctx->op.ciph.cipher->settable_ctx_params(); if (EVP_PKEY_CTX_IS_GEN_OP(ctx) && ctx->keymgmt != NULL && ctx->keymgmt->gen_settable_params != NULL) return evp_keymgmt_gen_settable_params(ctx->keymgmt); 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_MODE 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) { const OSSL_PARAM *p; if (ctx == NULL || params == NULL) return 0; for (p = params; p->key != NULL; p++) { /* Check the ctx actually understands this parameter */ if (OSSL_PARAM_locate_const(EVP_PKEY_CTX_settable_params(ctx), 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) { const OSSL_PARAM *p; if (ctx == NULL || params == NULL) return 0; for (p = params; p->key != NULL; p++ ) { /* Check the ctx actually understands this parameter */ if (OSSL_PARAM_locate_const(EVP_PKEY_CTX_gettable_params(ctx), p->key) == NULL ) return -2; } return EVP_PKEY_CTX_get_params(ctx, params); } # ifndef OPENSSL_NO_DH int EVP_PKEY_CTX_set_dh_pad(EVP_PKEY_CTX *ctx, int pad) { OSSL_PARAM dh_pad_params[2]; unsigned int upad = pad; /* We use EVP_PKEY_CTX_ctrl return values */ if (ctx == NULL || !EVP_PKEY_CTX_IS_DERIVE_OP(ctx)) { ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED); return -2; } /* TODO(3.0): Remove this eventually when no more legacy */ if (ctx->op.kex.exchprovctx == NULL) return EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_DH, EVP_PKEY_OP_DERIVE, EVP_PKEY_CTRL_DH_PAD, pad, NULL); dh_pad_params[0] = OSSL_PARAM_construct_uint(OSSL_EXCHANGE_PARAM_PAD, &upad); dh_pad_params[1] = OSSL_PARAM_construct_end(); return EVP_PKEY_CTX_set_params(ctx, dh_pad_params); } # endif int EVP_PKEY_CTX_get_signature_md(EVP_PKEY_CTX *ctx, const EVP_MD **md) { OSSL_PARAM sig_md_params[3], *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; } /* TODO(3.0): Remove this eventually when no more legacy */ if (ctx->op.sig.sigprovctx == 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; } int EVP_PKEY_CTX_set_signature_md(EVP_PKEY_CTX *ctx, const EVP_MD *md) { OSSL_PARAM sig_md_params[2], *p = sig_md_params; const char *name; 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; } /* TODO(3.0): Remove this eventually when no more legacy */ if (ctx->op.sig.sigprovctx == NULL) return EVP_PKEY_CTX_ctrl(ctx, -1, EVP_PKEY_OP_TYPE_SIG, EVP_PKEY_CTRL_MD, 0, (void *)(md)); if (md == NULL) { name = ""; } else { name = EVP_MD_name(md); } *p++ = OSSL_PARAM_construct_utf8_string(OSSL_SIGNATURE_PARAM_DIGEST, /* * 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, sig_md_params); } static int legacy_ctrl_to_param(EVP_PKEY_CTX *ctx, int keytype, int optype, int cmd, int p1, void *p2) { /* * GOST CMS format is different for different cipher algorithms. * Most of other algorithms don't have such a difference * so this ctrl is just ignored. */ if (cmd == EVP_PKEY_CTRL_CIPHER) return -2; # ifndef OPENSSL_NO_DH if (keytype == EVP_PKEY_DH) { switch (cmd) { case EVP_PKEY_CTRL_DH_PAD: return EVP_PKEY_CTX_set_dh_pad(ctx, p1); } } # endif # ifndef OPENSSL_NO_EC if (keytype == EVP_PKEY_EC) { switch (cmd) { case EVP_PKEY_CTRL_EC_ECDH_COFACTOR: if (p1 == -2) { return EVP_PKEY_CTX_get_ecdh_cofactor_mode(ctx); } else if (p1 < -1 || p1 > 1) { /* Uses the same return values as EVP_PKEY_CTX_ctrl */ return -2; } else { return EVP_PKEY_CTX_set_ecdh_cofactor_mode(ctx, p1); } case EVP_PKEY_CTRL_EC_KDF_TYPE: if (p1 == -2) { return EVP_PKEY_CTX_get_ecdh_kdf_type(ctx); } else { return EVP_PKEY_CTX_set_ecdh_kdf_type(ctx, p1); } case EVP_PKEY_CTRL_GET_EC_KDF_MD: return EVP_PKEY_CTX_get_ecdh_kdf_md(ctx, p2); case EVP_PKEY_CTRL_EC_KDF_MD: return EVP_PKEY_CTX_set_ecdh_kdf_md(ctx, p2); case EVP_PKEY_CTRL_GET_EC_KDF_OUTLEN: return EVP_PKEY_CTX_get_ecdh_kdf_outlen(ctx, p2); case EVP_PKEY_CTRL_EC_KDF_OUTLEN: return EVP_PKEY_CTX_set_ecdh_kdf_outlen(ctx, p1); case EVP_PKEY_CTRL_GET_EC_KDF_UKM: return EVP_PKEY_CTX_get0_ecdh_kdf_ukm(ctx, p2); case EVP_PKEY_CTRL_EC_KDF_UKM: return EVP_PKEY_CTX_set0_ecdh_kdf_ukm(ctx, p2, p1); } } # endif if (keytype == EVP_PKEY_RSA) { switch (cmd) { case EVP_PKEY_CTRL_RSA_OAEP_MD: return EVP_PKEY_CTX_set_rsa_oaep_md(ctx, p2); case EVP_PKEY_CTRL_GET_RSA_OAEP_MD: return EVP_PKEY_CTX_get_rsa_oaep_md(ctx, p2); case EVP_PKEY_CTRL_RSA_MGF1_MD: return EVP_PKEY_CTX_set_rsa_oaep_md(ctx, p2); case EVP_PKEY_CTRL_RSA_OAEP_LABEL: return EVP_PKEY_CTX_set0_rsa_oaep_label(ctx, p2, p1); case EVP_PKEY_CTRL_GET_RSA_OAEP_LABEL: return EVP_PKEY_CTX_get0_rsa_oaep_label(ctx, (unsigned char **)p2); case EVP_PKEY_CTRL_RSA_KEYGEN_BITS: return EVP_PKEY_CTX_set_rsa_keygen_bits(ctx, p1); case EVP_PKEY_CTRL_RSA_KEYGEN_PUBEXP: return EVP_PKEY_CTX_set_rsa_keygen_pubexp(ctx, p2); case EVP_PKEY_CTRL_RSA_KEYGEN_PRIMES: return EVP_PKEY_CTX_set_rsa_keygen_primes(ctx, p1); } } /* * keytype == -1 is used when several key types share the same structure, * or for generic controls that are the same across multiple key types. */ if (keytype == -1) { switch (cmd) { case EVP_PKEY_CTRL_MD: return EVP_PKEY_CTX_set_signature_md(ctx, p2); case EVP_PKEY_CTRL_GET_MD: return EVP_PKEY_CTX_get_signature_md(ctx, p2); case EVP_PKEY_CTRL_RSA_PADDING: return EVP_PKEY_CTX_set_rsa_padding(ctx, p1); case EVP_PKEY_CTRL_GET_RSA_PADDING: return EVP_PKEY_CTX_get_rsa_padding(ctx, p2); case EVP_PKEY_CTRL_GET_RSA_MGF1_MD: return EVP_PKEY_CTX_get_rsa_oaep_md(ctx, p2); case EVP_PKEY_CTRL_RSA_PSS_SALTLEN: return EVP_PKEY_CTX_set_rsa_pss_saltlen(ctx, p1); case EVP_PKEY_CTRL_GET_RSA_PSS_SALTLEN: return EVP_PKEY_CTX_get_rsa_pss_saltlen(ctx, p2); case EVP_PKEY_CTRL_PKCS7_ENCRYPT: case EVP_PKEY_CTRL_PKCS7_DECRYPT: # ifndef OPENSSL_NO_CMS case EVP_PKEY_CTRL_CMS_DECRYPT: case EVP_PKEY_CTRL_CMS_ENCRYPT: # endif /* TODO (3.0) Temporary hack, this should probe */ if (!EVP_PKEY_is_a(EVP_PKEY_CTX_get0_pkey(ctx), "RSASSA-PSS")) return 1; ERR_raise(ERR_LIB_EVP, EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE); return -2; } } return 0; } int EVP_PKEY_CTX_ctrl(EVP_PKEY_CTX *ctx, int keytype, int optype, int cmd, int p1, void *p2) { int ret; if (ctx == NULL) { EVPerr(EVP_F_EVP_PKEY_CTX_CTRL, EVP_R_COMMAND_NOT_SUPPORTED); return -2; } if ((EVP_PKEY_CTX_IS_DERIVE_OP(ctx) && ctx->op.kex.exchprovctx != NULL) || (EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx) && ctx->op.sig.sigprovctx != NULL) || (EVP_PKEY_CTX_IS_ASYM_CIPHER_OP(ctx) && ctx->op.ciph.ciphprovctx != NULL) || (EVP_PKEY_CTX_IS_GEN_OP(ctx) && ctx->op.keymgmt.genctx != NULL)) return legacy_ctrl_to_param(ctx, keytype, optype, cmd, p1, p2); if (ctx->pmeth == NULL || ctx->pmeth->ctrl == NULL) { EVPerr(EVP_F_EVP_PKEY_CTX_CTRL, EVP_R_COMMAND_NOT_SUPPORTED); return -2; } if ((keytype != -1) && (ctx->pmeth->pkey_id != keytype)) return -1; /* Skip the operation checks since this is called in a very early stage */ if (ctx->pmeth->digest_custom != NULL) goto doit; if (ctx->operation == EVP_PKEY_OP_UNDEFINED) { EVPerr(EVP_F_EVP_PKEY_CTX_CTRL, EVP_R_NO_OPERATION_SET); return -1; } if ((optype != -1) && !(ctx->operation & optype)) { EVPerr(EVP_F_EVP_PKEY_CTX_CTRL, EVP_R_INVALID_OPERATION); return -1; } doit: ret = ctx->pmeth->ctrl(ctx, cmd, p1, p2); if (ret == -2) EVPerr(EVP_F_EVP_PKEY_CTX_CTRL, EVP_R_COMMAND_NOT_SUPPORTED); return ret; } 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 legacy_ctrl_str_to_param(EVP_PKEY_CTX *ctx, const char *name, const char *value) { if (strcmp(name, "rsa_padding_mode") == 0) name = OSSL_ASYM_CIPHER_PARAM_PAD_MODE; else if (strcmp(name, "rsa_mgf1_md") == 0) name = OSSL_ASYM_CIPHER_PARAM_MGF1_DIGEST; else if (strcmp(name, "rsa_oaep_md") == 0) name = OSSL_ASYM_CIPHER_PARAM_OAEP_DIGEST; else if (strcmp(name, "rsa_oaep_label") == 0) name = OSSL_ASYM_CIPHER_PARAM_OAEP_LABEL; else if (strcmp(name, "rsa_pss_saltlen") == 0) name = OSSL_SIGNATURE_PARAM_PSS_SALTLEN; else if (strcmp(name, "rsa_keygen_bits") == 0) name = OSSL_PKEY_PARAM_RSA_BITS; else if (strcmp(name, "rsa_keygen_pubexp") == 0) name = OSSL_PKEY_PARAM_RSA_E; else if (strcmp(name, "rsa_keygen_primes") == 0) name = OSSL_PKEY_PARAM_RSA_PRIMES; # ifndef OPENSSL_NO_DH else if (strcmp(name, "dh_pad") == 0) name = OSSL_EXCHANGE_PARAM_PAD; # endif # ifndef OPENSSL_NO_EC else if (strcmp(name, "ecdh_cofactor_mode") == 0) name = OSSL_EXCHANGE_PARAM_EC_ECDH_COFACTOR_MODE; else if (strcmp(name, "ecdh_kdf_md") == 0) name = OSSL_EXCHANGE_PARAM_KDF_DIGEST; # endif { /* * TODO(3.0) reduce the code above to only translate known legacy * string to the corresponding core name (see core_names.h), but * otherwise leave it to this code block to do the actual work. */ const OSSL_PARAM *settable = EVP_PKEY_CTX_settable_params(ctx); OSSL_PARAM params[2] = { OSSL_PARAM_END, OSSL_PARAM_END }; int rv = 0; int exists = 0; if (!OSSL_PARAM_allocate_from_text(¶ms[0], settable, name, value, strlen(value), &exists)) { if (!exists) { ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED); return -2; } return 0; } if (EVP_PKEY_CTX_set_params(ctx, params)) rv = 1; OPENSSL_free(params[0].data); return rv; } } int EVP_PKEY_CTX_ctrl_str(EVP_PKEY_CTX *ctx, const char *name, const char *value) { if (ctx == NULL) { EVPerr(EVP_F_EVP_PKEY_CTX_CTRL_STR, EVP_R_COMMAND_NOT_SUPPORTED); return -2; } if ((EVP_PKEY_CTX_IS_DERIVE_OP(ctx) && ctx->op.kex.exchprovctx != NULL) || (EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx) && ctx->op.sig.sigprovctx != NULL) || (EVP_PKEY_CTX_IS_ASYM_CIPHER_OP(ctx) && ctx->op.ciph.ciphprovctx != NULL) || (EVP_PKEY_CTX_IS_GEN_OP(ctx) && ctx->op.keymgmt.genctx != NULL)) return legacy_ctrl_str_to_param(ctx, name, value); if (!ctx || !ctx->pmeth || !ctx->pmeth->ctrl_str) { EVPerr(EVP_F_EVP_PKEY_CTX_CTRL_STR, EVP_R_COMMAND_NOT_SUPPORTED); return -2; } if (strcmp(name, "digest") == 0) return EVP_PKEY_CTX_md(ctx, EVP_PKEY_OP_TYPE_SIG, EVP_PKEY_CTRL_MD, value); return ctx->pmeth->ctrl_str(ctx, name, value); } /* 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) { EVPerr(EVP_F_EVP_PKEY_CTX_MD, 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(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(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(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_MODE */