-
/*
- * Copyright 2006-2018 The OpenSSL Project Authors. All Rights Reserved.
+ * Copyright 2006-2020 The OpenSSL Project Authors. All Rights Reserved.
*
* Licensed under the Apache License 2.0 (the "License"). You may not use
* this file except in compliance with the License. You can obtain a copy
*/
/*
- * DH low level APIs are deprecated for public use, but still ok for
+ * Low level key APIs (DH etc) are deprecated for public use, but still ok for
* internal use.
*/
#include "internal/deprecated.h"
#include "internal/cryptlib.h"
#include "crypto/asn1.h"
#include "crypto/evp.h"
+#include "crypto/dh.h"
+#include "internal/ffc.h"
#include "internal/numbers.h"
#include "internal/provider.h"
#include "evp_local.h"
-#ifndef FIPS_MODE
+#ifndef FIPS_MODULE
typedef const EVP_PKEY_METHOD *(*pmeth_fn)(void);
typedef int sk_cmp_fn_type(const char *const *a, const char *const *b);
pmeth->flags = flags | EVP_PKEY_FLAG_DYNAMIC;
return pmeth;
}
-#endif /* FIPS_MODE */
+#endif /* FIPS_MODULE */
+
+static int is_legacy_alg(int id, const char *keytype)
+{
+#ifndef FIPS_MODULE
+ /* Certain EVP_PKEY keytypes are only available in legacy form */
+ if (id == -1) {
+ id = OBJ_sn2nid(keytype);
+ if (id == NID_undef)
+ id = OBJ_ln2nid(keytype);
+ if (id == NID_undef)
+ return 0;
+ }
+ switch (id) {
+ /*
+ * TODO(3.0): Remove SM2 and DHX when they are converted to have provider
+ * support
+ */
+ case EVP_PKEY_SM2:
+ case EVP_PKEY_DHX:
+ case EVP_PKEY_SCRYPT:
+ case EVP_PKEY_TLS1_PRF:
+ case EVP_PKEY_HKDF:
+ case EVP_PKEY_CMAC:
+ case EVP_PKEY_HMAC:
+ case EVP_PKEY_SIPHASH:
+ case EVP_PKEY_POLY1305:
+ return 1;
+ default:
+ return 0;
+ }
+#else
+ return 0;
+#endif
+}
static EVP_PKEY_CTX *int_ctx_new(OPENSSL_CTX *libctx,
EVP_PKEY *pkey, ENGINE *e,
- const char *name, const char *propquery,
+ 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
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 the internal key is provided, we extract the keytype from its
+ * keymgmt and skip over the legacy code.
*/
- if (pkey != NULL && pkey->ameth == NULL) {
+ if (pkey != NULL && evp_pkey_is_provided(pkey)) {
/* If we have an engine, something went wrong somewhere... */
if (!ossl_assert(e == NULL))
return NULL;
- name = evp_first_name(pkey->keymgmt->prov, pkey->keymgmt->name_id);
- /*
- * TODO: I wonder if the EVP_PKEY should have the name and propquery
- * that were used when building it.... /RL
- */
+ keytype = evp_first_name(pkey->keymgmt->prov, pkey->keymgmt->name_id);
goto common;
}
-#ifndef FIPS_MODE
+#ifndef FIPS_MODULE
/* TODO(3.0) Legacy code should be removed when all is provider based */
/* BEGIN legacy */
if (id == -1) {
* since that can only happen internally, it's safe to make an
* assertion.
*/
- if (!ossl_assert(e == NULL || name == NULL))
+ if (!ossl_assert(e == NULL || keytype == NULL))
return NULL;
if (e == NULL)
- name = OBJ_nid2sn(id);
+ keytype = OBJ_nid2sn(id);
# ifndef OPENSSL_NO_ENGINE
if (e == NULL && pkey != NULL)
return NULL;
}
/* END legacy */
-#endif /* FIPS_MODE */
+#endif /* FIPS_MODULE */
common:
+ /*
+ * If there's no engine and there's a name, we try fetching a provider
+ * implementation.
+ */
+ if (e == NULL && keytype != NULL) {
+ int legacy = is_legacy_alg(id, keytype);
+
+ if (legacy) {
+ /* This could fail so ignore errors */
+ ERR_set_mark();
+ }
+
+ keymgmt = EVP_KEYMGMT_fetch(libctx, keytype, propquery);
+ if (legacy) {
+ ERR_pop_to_mark();
+ } else if (keymgmt == NULL) {
+ EVPerr(EVP_F_INT_CTX_NEW, EVP_R_FETCH_FAILED);
+ return NULL;
+ }
+ }
+
ret = OPENSSL_zalloc(sizeof(*ret));
if (ret == NULL) {
-#if !defined(OPENSSL_NO_ENGINE) && !defined(FIPS_MODE)
+ EVP_KEYMGMT_free(keymgmt);
+#if !defined(OPENSSL_NO_ENGINE) && !defined(FIPS_MODULE)
ENGINE_finish(e);
#endif
EVPerr(EVP_F_INT_CTX_NEW, ERR_R_MALLOC_FAILURE);
return NULL;
}
ret->libctx = libctx;
- ret->keytype = name;
ret->propquery = propquery;
+ ret->keytype = keytype;
+ ret->keymgmt = keymgmt;
ret->engine = e;
ret->pmeth = pmeth;
ret->operation = EVP_PKEY_OP_UNDEFINED;
return ret;
}
-/*- All methods below can also be used in FIPS_MODE */
+/*- All methods below can also be used in FIPS_MODULE */
EVP_PKEY_CTX *EVP_PKEY_CTX_new_from_name(OPENSSL_CTX *libctx,
const char *name,
ctx->op.kex.exchange = NULL;
}
/* TODO(3.0): add dependancies and uncomment this when available for fips mode */
-#ifndef FIPS_MODE
+#ifndef FIPS_MODULE
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_PKEY_free(ctx->pkey);
EVP_PKEY_free(ctx->peerkey);
-#if !defined(OPENSSL_NO_ENGINE) && !defined(FIPS_MODE)
+#if !defined(OPENSSL_NO_ENGINE) && !defined(FIPS_MODULE)
ENGINE_finish(ctx->engine);
#endif
OPENSSL_free(ctx);
}
-#ifndef FIPS_MODE
+#ifndef FIPS_MODULE
void EVP_PKEY_meth_get0_info(int *ppkey_id, int *pflags,
const EVP_PKEY_METHOD *meth)
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->init = src->init;
- dst->copy = src->copy;
- dst->cleanup = src->cleanup;
+ *dst = *src;
- 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;
+ /* 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)
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)
return 0;
}
+#ifndef FIPS_MODULE
const OSSL_PARAM *EVP_PKEY_CTX_gettable_params(EVP_PKEY_CTX *ctx)
{
if (EVP_PKEY_CTX_IS_DERIVE_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;
}
&& 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)
+ && ctx->keymgmt != NULL)
return evp_keymgmt_gen_settable_params(ctx->keymgmt);
return NULL;
*
* In particular they return -2 if any of the params is not supported.
*
- * They are not available in FIPS_MODE as they depend on
+ * They are not available in FIPS_MODULE as they depend on
* - EVP_PKEY_CTX_{get,set}_params()
* - EVP_PKEY_CTX_{gettable,settable}_params()
*
*/
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);
+ case EVP_PKEY_CTRL_DH_PARAMGEN_PRIME_LEN:
+ return EVP_PKEY_CTX_set_dh_paramgen_prime_len(ctx, p1);
+ case EVP_PKEY_CTRL_DH_PARAMGEN_SUBPRIME_LEN:
+ return EVP_PKEY_CTX_set_dh_paramgen_subprime_len(ctx, p1);
+ case EVP_PKEY_CTRL_DH_PARAMGEN_GENERATOR:
+ return EVP_PKEY_CTX_set_dh_paramgen_generator(ctx, p1);
+ case EVP_PKEY_CTRL_DH_PARAMGEN_TYPE:
+ return EVP_PKEY_CTX_set_dh_paramgen_type(ctx, p1);
+ case EVP_PKEY_CTRL_DH_RFC5114:
+ return EVP_PKEY_CTX_set_dh_rfc5114(ctx, p1);
+ }
+ }
+# endif
+# ifndef OPENSSL_NO_DSA
+ if (keytype == EVP_PKEY_DSA) {
+ switch (cmd) {
+ case EVP_PKEY_CTRL_DSA_PARAMGEN_BITS:
+ return EVP_PKEY_CTX_set_dsa_paramgen_bits(ctx, p1);
+ case EVP_PKEY_CTRL_DSA_PARAMGEN_Q_BITS:
+ return EVP_PKEY_CTX_set_dsa_paramgen_q_bits(ctx, p1);
+ case EVP_PKEY_CTRL_DSA_PARAMGEN_MD:
+ return EVP_PKEY_CTX_set_dsa_paramgen_md(ctx, p2);
}
}
# endif
# ifndef OPENSSL_NO_EC
if (keytype == EVP_PKEY_EC) {
switch (cmd) {
+ case EVP_PKEY_CTRL_EC_PARAMGEN_CURVE_NID:
+ return EVP_PKEY_CTX_set_ec_paramgen_curve_nid(ctx, p1);
case EVP_PKEY_CTRL_EC_ECDH_COFACTOR:
if (p1 == -2) {
return EVP_PKEY_CTX_get_ecdh_cofactor_mode(ctx);
}
}
# 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_rsa_padding(ctx, p1);
case EVP_PKEY_CTRL_GET_RSA_PADDING:
return EVP_PKEY_CTX_get_rsa_padding(ctx, p2);
- 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_GET_RSA_MGF1_MD:
return EVP_PKEY_CTX_get_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_PSS_SALTLEN:
return EVP_PKEY_CTX_set_rsa_pss_saltlen(ctx, p1);
case EVP_PKEY_CTRL_GET_RSA_PSS_SALTLEN:
case EVP_PKEY_CTRL_CMS_DECRYPT:
case EVP_PKEY_CTRL_CMS_ENCRYPT:
# endif
- if (ctx->pmeth->pkey_id != EVP_PKEY_RSA_PSS)
+ /* 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;
- 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);
}
}
return 0;
static int legacy_ctrl_str_to_param(EVP_PKEY_CTX *ctx, const char *name,
const char *value)
{
+
+ /* Special cases that we intercept */
+# ifndef OPENSSL_NO_EC
+ /*
+ * We don't support encoding settings for providers, i.e. the only
+ * possible encoding is "named_curve", so we simply fail when something
+ * else is given, and otherwise just pretend all is fine.
+ */
+ if (strcmp(name, "ec_param_enc") == 0) {
+ if (strcmp(value, "named_curve") == 0) {
+ return 1;
+ } else {
+ ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
+ return -2;
+ }
+ }
+# endif
+
if (strcmp(name, "rsa_padding_mode") == 0)
name = OSSL_ASYM_CIPHER_PARAM_PAD_MODE;
else if (strcmp(name, "rsa_mgf1_md") == 0)
name = OSSL_PKEY_PARAM_RSA_E;
else if (strcmp(name, "rsa_keygen_primes") == 0)
name = OSSL_PKEY_PARAM_RSA_PRIMES;
+ else if (strcmp(name, "rsa_pss_keygen_md") == 0)
+ name = OSSL_PKEY_PARAM_RSA_DIGEST;
+ else if (strcmp(name, "rsa_pss_keygen_mgf1_md") == 0)
+ name = OSSL_PKEY_PARAM_RSA_MGF1_DIGEST;
+ else if (strcmp(name, "rsa_pss_keygen_saltlen") == 0)
+ name = OSSL_PKEY_PARAM_RSA_PSS_SALTLEN;
+# ifndef OPENSSL_NO_DSA
+ else if (strcmp(name, "dsa_paramgen_bits") == 0)
+ name = OSSL_PKEY_PARAM_FFC_PBITS;
+ else if (strcmp(name, "dsa_paramgen_q_bits") == 0)
+ name = OSSL_PKEY_PARAM_FFC_QBITS;
+ else if (strcmp(name, "dsa_paramgen_md") == 0)
+ name = OSSL_PKEY_PARAM_FFC_DIGEST;
+# endif
# ifndef OPENSSL_NO_DH
- else if (strcmp(name, "dh_pad") == 0)
+ else if (strcmp(name, "dh_paramgen_generator") == 0)
+ name = OSSL_PKEY_PARAM_DH_GENERATOR;
+ else if (strcmp(name, "dh_paramgen_prime_len") == 0)
+ name = OSSL_PKEY_PARAM_FFC_PBITS;
+ else if (strcmp(name, "dh_paramgen_subprime_len") == 0)
+ name = OSSL_PKEY_PARAM_FFC_QBITS;
+ else if (strcmp(name, "dh_paramgen_type") == 0) {
+ name = OSSL_PKEY_PARAM_FFC_TYPE;
+ value = dh_gen_type_id2name(atoi(value));
+ } else if (strcmp(name, "dh_param") == 0)
+ name = OSSL_PKEY_PARAM_GROUP_NAME;
+ else if (strcmp(name, "dh_rfc5114") == 0) {
+ name = OSSL_PKEY_PARAM_GROUP_NAME;
+ value = ffc_named_group_from_uid(atoi(value));
+ } else if (strcmp(name, "dh_pad") == 0)
name = OSSL_EXCHANGE_PARAM_PAD;
# endif
# ifndef OPENSSL_NO_EC
+ else if (strcmp(name, "ec_paramgen_curve") == 0)
+ name = OSSL_PKEY_PARAM_GROUP_NAME;
else if (strcmp(name, "ecdh_cofactor_mode") == 0)
name = OSSL_EXCHANGE_PARAM_EC_ECDH_COFACTOR_MODE;
else if (strcmp(name, "ecdh_kdf_md") == 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);
+ ERR_raise_data(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED,
+ "name=%s,value=%s", name, value);
return -2;
}
return 0;
*pdigest_custom = pmeth->digest_custom;
}
-#endif /* FIPS_MODE */
+#endif /* FIPS_MODULE */
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