File openssl-FIPS-140-3-keychecks.patch of Package openssl-3
From 36d037a91a3ad76988c4495547c2bca33b525811 Mon Sep 17 00:00:00 2001
From: Simo Sorce <simo@redhat.com>
Date: Mon, 24 Mar 2025 10:50:37 -0400
Subject: [PATCH 27/53] FIPS: RSA: PCTs
Signed-off-by: Simo Sorce <simo@redhat.com>
---
providers/implementations/keymgmt/rsa_kmgmt.c | 18 +++++++
providers/implementations/signature/rsa_sig.c | 47 +++++++++++++++++--
2 files changed, 61 insertions(+), 4 deletions(-)
Index: openssl-3.5.0-beta1/providers/implementations/keymgmt/rsa_kmgmt.c
===================================================================
--- openssl-3.5.0-beta1.orig/providers/implementations/keymgmt/rsa_kmgmt.c
+++ openssl-3.5.0-beta1/providers/implementations/keymgmt/rsa_kmgmt.c
@@ -433,6 +433,7 @@ struct rsa_gen_ctx {
#if defined(FIPS_MODULE) && !defined(OPENSSL_NO_ACVP_TESTS)
/* ACVP test parameters */
OSSL_PARAM *acvp_test_params;
+ void *prov_rsa_ctx;
#endif
};
@@ -446,6 +447,12 @@ static int rsa_gencb(int p, int n, BN_GE
return gctx->cb(params, gctx->cbarg);
}
+#ifdef FIPS_MODULE
+void *rsa_newctx(void *provctx, const char *propq);
+void rsa_freectx(void *vctx);
+int do_rsa_pct(void *, const char *, void *);
+#endif
+
static void *gen_init(void *provctx, int selection, int rsa_type,
const OSSL_PARAM params[])
{
@@ -473,6 +480,10 @@ static void *gen_init(void *provctx, int
if (!rsa_gen_set_params(gctx, params))
goto err;
+#ifdef FIPS_MODULE
+ if (gctx != NULL)
+ gctx->prov_rsa_ctx = rsa_newctx(provctx, NULL);
+#endif
return gctx;
err:
@@ -629,6 +640,11 @@ static void *rsa_gen(void *genctx, OSSL_
rsa = rsa_tmp;
rsa_tmp = NULL;
+#ifdef FIPS_MODULE
+ /* Pairwise consistency test */
+ if (do_rsa_pct(gctx->prov_rsa_ctx, "sha256", rsa) != 1)
+ abort();
+#endif
err:
BN_GENCB_free(gencb);
RSA_free(rsa_tmp);
@@ -644,6 +660,8 @@ static void rsa_gen_cleanup(void *genctx
#if defined(FIPS_MODULE) && !defined(OPENSSL_NO_ACVP_TESTS)
ossl_rsa_acvp_test_gen_params_free(gctx->acvp_test_params);
gctx->acvp_test_params = NULL;
+ rsa_freectx(gctx->prov_rsa_ctx);
+ gctx->prov_rsa_ctx = NULL;
#endif
BN_clear_free(gctx->pub_exp);
OPENSSL_free(gctx);
Index: openssl-3.5.0-beta1/providers/implementations/signature/rsa_sig.c
===================================================================
--- openssl-3.5.0-beta1.orig/providers/implementations/signature/rsa_sig.c
+++ openssl-3.5.0-beta1/providers/implementations/signature/rsa_sig.c
@@ -35,7 +35,7 @@
#define RSA_DEFAULT_DIGEST_NAME OSSL_DIGEST_NAME_SHA1
-static OSSL_FUNC_signature_newctx_fn rsa_newctx;
+OSSL_FUNC_signature_newctx_fn rsa_newctx;
static OSSL_FUNC_signature_sign_init_fn rsa_sign_init;
static OSSL_FUNC_signature_verify_init_fn rsa_verify_init;
static OSSL_FUNC_signature_verify_recover_init_fn rsa_verify_recover_init;
@@ -52,7 +52,7 @@ static OSSL_FUNC_signature_digest_sign_f
static OSSL_FUNC_signature_digest_verify_init_fn rsa_digest_verify_init;
static OSSL_FUNC_signature_digest_verify_update_fn rsa_digest_verify_update;
static OSSL_FUNC_signature_digest_verify_final_fn rsa_digest_verify_final;
-static OSSL_FUNC_signature_freectx_fn rsa_freectx;
+OSSL_FUNC_signature_freectx_fn rsa_freectx;
static OSSL_FUNC_signature_dupctx_fn rsa_dupctx;
static OSSL_FUNC_signature_query_key_types_fn rsa_sigalg_query_key_types;
static OSSL_FUNC_signature_get_ctx_params_fn rsa_get_ctx_params;
@@ -224,7 +224,7 @@ static int rsa_check_parameters(PROV_RSA
return 1;
}
-static void *rsa_newctx(void *provctx, const char *propq)
+void *rsa_newctx(void *provctx, const char *propq)
{
PROV_RSA_CTX *prsactx = NULL;
char *propq_copy = NULL;
@@ -1313,7 +1313,7 @@ int rsa_digest_verify_final(void *vprsac
return ok;
}
-static void rsa_freectx(void *vprsactx)
+void rsa_freectx(void *vprsactx)
{
PROV_RSA_CTX *prsactx = (PROV_RSA_CTX *)vprsactx;
@@ -1858,6 +1858,45 @@ static const OSSL_PARAM *rsa_settable_ct
return EVP_MD_settable_ctx_params(prsactx->md);
}
+#ifdef FIPS_MODULE
+int do_rsa_pct(void *vctx, const char *mdname, void *rsa)
+{
+ static const unsigned char data[32];
+ unsigned char *sigbuf = NULL;
+ size_t siglen = 0;
+ int ret = 0;
+
+ if (rsa_digest_sign_init(vctx, mdname, rsa, NULL) <= 0)
+ return 0;
+
+ if (rsa_digest_sign_update(vctx, data, sizeof(data)) <= 0)
+ return 0;
+
+ if (rsa_digest_sign_final(vctx, NULL, &siglen, 0) <= 0)
+ return 0;
+
+ if ((sigbuf = OPENSSL_malloc(siglen)) == NULL)
+ return 0;
+
+ if (rsa_digest_sign_final(vctx, sigbuf, &siglen, siglen) <= 0)
+ goto err;
+
+ if (rsa_digest_verify_init(vctx, mdname, rsa, NULL) <= 0)
+ goto err;
+
+ if (rsa_digest_verify_update(vctx, data, sizeof(data)) <= 0)
+ goto err;
+
+ if (rsa_digest_verify_final(vctx, sigbuf, siglen) <= 0)
+ goto err;
+ ret = 1;
+
+ err:
+ OPENSSL_free(sigbuf);
+ return ret;
+}
+#endif
+
const OSSL_DISPATCH ossl_rsa_signature_functions[] = {
{ OSSL_FUNC_SIGNATURE_NEWCTX, (void (*)(void))rsa_newctx },
{ OSSL_FUNC_SIGNATURE_SIGN_INIT, (void (*)(void))rsa_sign_init },
Index: openssl-3.5.0-beta1/crypto/dh/dh_key.c
===================================================================
--- openssl-3.5.0-beta1.orig/crypto/dh/dh_key.c
+++ openssl-3.5.0-beta1/crypto/dh/dh_key.c
@@ -43,6 +43,9 @@ int ossl_dh_compute_key(unsigned char *k
BN_MONT_CTX *mont = NULL;
BIGNUM *z = NULL, *pminus1;
int ret = -1;
+#ifdef FIPS_MODULE
+ int validate = 0;
+#endif
if (BN_num_bits(dh->params.p) > OPENSSL_DH_MAX_MODULUS_BITS) {
ERR_raise(ERR_LIB_DH, DH_R_MODULUS_TOO_LARGE);
@@ -60,6 +63,13 @@ int ossl_dh_compute_key(unsigned char *k
return 0;
}
+#ifdef FIPS_MODULE
+ if (DH_check_pub_key(dh, pub_key, &validate) <= 0) {
+ ERR_raise(ERR_LIB_DH, DH_R_CHECK_PUBKEY_INVALID);
+ return 0;
+ }
+#endif
+
ctx = BN_CTX_new_ex(dh->libctx);
if (ctx == NULL)
goto err;
@@ -271,6 +281,9 @@ static int generate_key(DH *dh)
#endif
BN_CTX *ctx = NULL;
BIGNUM *pub_key = NULL, *priv_key = NULL;
+#ifdef FIPS_MODULE
+ int validate = 0;
+#endif
if (BN_num_bits(dh->params.p) > OPENSSL_DH_MAX_MODULUS_BITS) {
ERR_raise(ERR_LIB_DH, DH_R_MODULUS_TOO_LARGE);
@@ -369,8 +382,21 @@ static int generate_key(DH *dh)
if (!ossl_dh_generate_public_key(ctx, dh, priv_key, pub_key))
goto err;
+#ifdef FIPS_MODULE
+ if (DH_check_pub_key(dh, pub_key, &validate) <= 0) {
+ ERR_raise(ERR_LIB_DH, DH_R_CHECK_PUBKEY_INVALID);
+ goto err;
+ }
+#endif
+
dh->pub_key = pub_key;
dh->priv_key = priv_key;
+#ifdef FIPS_MODULE
+ if (ossl_dh_check_pairwise(dh) <= 0) {
+ abort();
+ }
+#endif
+
dh->dirty_cnt++;
ok = 1;
err:
Index: openssl-3.5.0-beta1/providers/implementations/exchange/ecdh_exch.c
===================================================================
--- openssl-3.5.0-beta1.orig/providers/implementations/exchange/ecdh_exch.c
+++ openssl-3.5.0-beta1/providers/implementations/exchange/ecdh_exch.c
@@ -560,6 +560,25 @@ int ecdh_plain_derive(void *vpecdhctx, u
#endif
ppubkey = EC_KEY_get0_public_key(pecdhctx->peerk);
+#ifdef FIPS_MODULE
+ {
+ BN_CTX *bn_ctx = BN_CTX_new_ex(ossl_ec_key_get_libctx(privk));
+ int check = 0;
+
+ if (bn_ctx == NULL) {
+ ERR_raise(ERR_LIB_PROV, ERR_R_MALLOC_FAILURE);
+ goto end;
+ }
+
+ check = ossl_ec_key_public_check(pecdhctx->peerk, bn_ctx);
+ BN_CTX_free(bn_ctx);
+
+ if (check <= 0) {
+ ERR_raise(ERR_LIB_PROV, EC_R_INVALID_PEER_KEY);
+ goto end;
+ }
+ }
+#endif
retlen = ECDH_compute_key(secret, size, ppubkey, privk, NULL);
Index: openssl-3.5.0-beta1/providers/implementations/keymgmt/ec_kmgmt.c
===================================================================
--- openssl-3.5.0-beta1.orig/providers/implementations/keymgmt/ec_kmgmt.c
+++ openssl-3.5.0-beta1/providers/implementations/keymgmt/ec_kmgmt.c
@@ -993,9 +993,18 @@ struct ec_gen_ctx {
EC_GROUP *gen_group;
unsigned char *dhkem_ikm;
size_t dhkem_ikmlen;
+#ifdef FIPS_MODULE
+ void *ecdsa_sig_ctx;
+#endif
OSSL_FIPS_IND_DECLARE
};
+#ifdef FIPS_MODULE
+void *ecdsa_newctx(void *provctx, const char *propq);
+void ecdsa_freectx(void *vctx);
+int do_ec_pct(void *, const char *, void *);
+#endif
+
static void *ec_gen_init(void *provctx, int selection,
const OSSL_PARAM params[])
{
@@ -1015,6 +1024,10 @@ static void *ec_gen_init(void *provctx,
gctx = NULL;
}
}
+#ifdef FIPS_MODULE
+ if (gctx != NULL)
+ gctx->ecdsa_sig_ctx = ecdsa_newctx(provctx, NULL);
+#endif
return gctx;
}
@@ -1326,6 +1339,12 @@ static void *ec_gen(void *genctx, OSSL_C
if (gctx->ecdh_mode != -1)
ret = ret && ossl_ec_set_ecdh_cofactor_mode(ec, gctx->ecdh_mode);
+#ifdef FIPS_MODULE
+ /* Pairwise consistency test */
+ if ((gctx->selection & OSSL_KEYMGMT_SELECT_KEYPAIR) != 0
+ && do_ec_pct(gctx->ecdsa_sig_ctx, "sha256", ec) != 1)
+ abort();
+#endif
if (gctx->group_check != NULL)
ret = ret && ossl_ec_set_check_group_type_from_name(ec,
@@ -1396,7 +1415,10 @@ static void ec_gen_cleanup(void *genctx)
if (gctx == NULL)
return;
-
+#ifdef FIPS_MODULE
+ ecdsa_freectx(gctx->ecdsa_sig_ctx);
+ gctx->ecdsa_sig_ctx = NULL;
+#endif
OPENSSL_clear_free(gctx->dhkem_ikm, gctx->dhkem_ikmlen);
EC_GROUP_free(gctx->gen_group);
BN_free(gctx->p);
Index: openssl-3.5.0-beta1/providers/implementations/signature/ecdsa_sig.c
===================================================================
--- openssl-3.5.0-beta1.orig/providers/implementations/signature/ecdsa_sig.c
+++ openssl-3.5.0-beta1/providers/implementations/signature/ecdsa_sig.c
@@ -33,7 +33,7 @@
#include "prov/der_ec.h"
#include "crypto/ec.h"
-static OSSL_FUNC_signature_newctx_fn ecdsa_newctx;
+OSSL_FUNC_signature_newctx_fn ecdsa_newctx;
static OSSL_FUNC_signature_sign_init_fn ecdsa_sign_init;
static OSSL_FUNC_signature_verify_init_fn ecdsa_verify_init;
static OSSL_FUNC_signature_sign_fn ecdsa_sign;
@@ -48,7 +48,7 @@ static OSSL_FUNC_signature_digest_sign_f
static OSSL_FUNC_signature_digest_verify_init_fn ecdsa_digest_verify_init;
static OSSL_FUNC_signature_digest_verify_update_fn ecdsa_digest_signverify_update;
static OSSL_FUNC_signature_digest_verify_final_fn ecdsa_digest_verify_final;
-static OSSL_FUNC_signature_freectx_fn ecdsa_freectx;
+OSSL_FUNC_signature_freectx_fn ecdsa_freectx;
static OSSL_FUNC_signature_dupctx_fn ecdsa_dupctx;
static OSSL_FUNC_signature_query_key_types_fn ecdsa_sigalg_query_key_types;
static OSSL_FUNC_signature_get_ctx_params_fn ecdsa_get_ctx_params;
@@ -139,7 +139,7 @@ typedef struct {
OSSL_FIPS_IND_DECLARE
} PROV_ECDSA_CTX;
-static void *ecdsa_newctx(void *provctx, const char *propq)
+void *ecdsa_newctx(void *provctx, const char *propq)
{
PROV_ECDSA_CTX *ctx;
@@ -604,7 +604,7 @@ int ecdsa_digest_verify_final(void *vctx
return ok;
}
-static void ecdsa_freectx(void *vctx)
+void ecdsa_freectx(void *vctx)
{
PROV_ECDSA_CTX *ctx = (PROV_ECDSA_CTX *)vctx;
@@ -853,6 +853,35 @@ static const OSSL_PARAM *ecdsa_settable_
return EVP_MD_settable_ctx_params(ctx->md);
}
+#ifdef FIPS_MODULE
+int do_ec_pct(void *vctx, const char *mdname, void *ec)
+{
+ static const unsigned char data[32];
+ unsigned char sigbuf[256];
+ size_t siglen = sizeof(sigbuf);
+
+ if (ecdsa_digest_sign_init(vctx, mdname, ec, NULL) <= 0)
+ return 0;
+
+ if (ecdsa_digest_signverify_update(vctx, data, sizeof(data)) <= 0)
+ return 0;
+
+ if (ecdsa_digest_sign_final(vctx, sigbuf, &siglen, sizeof(sigbuf)) <= 0)
+ return 0;
+
+ if (ecdsa_digest_verify_init(vctx, mdname, ec, NULL) <= 0)
+ return 0;
+
+ if (ecdsa_digest_signverify_update(vctx, data, sizeof(data)) <= 0)
+ return 0;
+
+ if (ecdsa_digest_verify_final(vctx, sigbuf, siglen) <= 0)
+ return 0;
+
+ return 1;
+}
+#endif
+
const OSSL_DISPATCH ossl_ecdsa_signature_functions[] = {
{ OSSL_FUNC_SIGNATURE_NEWCTX, (void (*)(void))ecdsa_newctx },
{ OSSL_FUNC_SIGNATURE_SIGN_INIT, (void (*)(void))ecdsa_sign_init },
