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db02879351
openssl/0044-FIPS-140-3-keychecks.patch
Clemens Lang db02879351 FIPS: abort on rsa_keygen_pairwise_test failure 
ISO 19790 AS10.09 says the module shall not perform any cryptographic
operations or output data in an error state, but OpenSSL does not have
checks for the module state in EVP_DigestUpdate() and
EVP_EncryptUpdate().

Upstream and their certification lab says these checks aren't needed,
our lab disagrees. We asked for clarification from CMVP. While we are
waiting for that, add a change that will allow us to submit. We will
drop this patch one we found a solution together with upstream.

See #22506 for the discussion upstream.

Resolves: RHEL-17104
2023-11-21 12:32:41 +01:00

391 lines
13 KiB
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diff -up openssl-3.0.1/crypto/dh/dh_key.c.fips3 openssl-3.0.1/crypto/dh/dh_key.c
--- openssl-3.0.1/crypto/dh/dh_key.c.fips3 2022-07-18 16:01:41.159543735 +0200
+++ openssl-3.0.1/crypto/dh/dh_key.c 2022-07-18 16:24:30.251388248 +0200
@@ -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);
@@ -54,6 +57,13 @@ 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;
@@ -262,6 +272,9 @@ 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);
@@ -354,8 +367,21 @@ 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:
diff -up openssl-3.0.7/crypto/ec/ec_key.c.f188 openssl-3.0.7/crypto/ec/ec_key.c
--- openssl-3.0.7/crypto/ec/ec_key.c.f188 2023-11-08 10:58:05.910031253 +0100
+++ openssl-3.0.7/crypto/ec/ec_key.c 2023-11-08 10:59:42.338526883 +0100
@@ -326,6 +326,11 @@ static int ec_generate_key(EC_KEY *eckey
eckey->dirty_cnt++;
#ifdef FIPS_MODULE
+ if (ossl_ec_key_public_check(eckey, ctx) <= 0) {
+ ERR_raise(ERR_LIB_EC, EC_R_INVALID_KEY);
+ goto err;
+ }
+
pairwise_test = 1;
#endif /* FIPS_MODULE */
diff -up openssl-3.0.1/providers/implementations/exchange/ecdh_exch.c.fips3 openssl-3.0.1/providers/implementations/exchange/ecdh_exch.c
--- openssl-3.0.1/providers/implementations/exchange/ecdh_exch.c.fips3 2022-07-25 13:42:46.814952053 +0200
+++ openssl-3.0.1/providers/implementations/exchange/ecdh_exch.c 2022-07-25 13:52:12.292065706 +0200
@@ -488,6 +488,25 @@ int ecdh_plain_derive(void *vpecdhctx, u
}
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);
diff -up openssl-3.0.7/providers/implementations/keymgmt/ec_kmgmt.c.pairwise openssl-3.0.7/providers/implementations/keymgmt/ec_kmgmt.c
--- openssl-3.0.7/providers/implementations/keymgmt/ec_kmgmt.c.pairwise 2023-02-20 11:44:18.451884117 +0100
+++ openssl-3.0.7/providers/implementations/keymgmt/ec_kmgmt.c 2023-02-20 12:39:46.037063842 +0100
@@ -982,8 +982,17 @@ struct ec_gen_ctx {
int selection;
int ecdh_mode;
EC_GROUP *gen_group;
+#ifdef FIPS_MODULE
+ void *ecdsa_sig_ctx;
+#endif
};
+#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[])
{
@@ -1002,6 +1011,10 @@ static void *ec_gen_init(void *provctx,
OPENSSL_free(gctx);
gctx = NULL;
}
+#ifdef FIPS_MODULE
+ if (gctx != NULL)
+ gctx->ecdsa_sig_ctx = ecdsa_newctx(provctx, NULL);
+#endif
return gctx;
}
@@ -1272,6 +1285,12 @@ 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, gctx->group_check);
@@ -1341,7 +1359,10 @@ 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
EC_GROUP_free(gctx->gen_group);
BN_free(gctx->p);
BN_free(gctx->a);
diff -up openssl-3.0.7/providers/implementations/signature/ecdsa_sig.c.pairwise openssl-3.0.7/providers/implementations/signature/ecdsa_sig.c
--- openssl-3.0.7/providers/implementations/signature/ecdsa_sig.c.pairwise 2023-02-20 11:50:23.035194347 +0100
+++ openssl-3.0.7/providers/implementations/signature/ecdsa_sig.c 2023-02-20 12:19:10.809768979 +0100
@@ -32,7 +32,7 @@
#include "crypto/ec.h"
#include "prov/der_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;
@@ -43,7 +43,7 @@ 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_get_ctx_params_fn ecdsa_get_ctx_params;
static OSSL_FUNC_signature_gettable_ctx_params_fn ecdsa_gettable_ctx_params;
@@ -104,7 +104,7 @@ typedef struct {
#endif
} PROV_ECDSA_CTX;
-static void *ecdsa_newctx(void *provctx, const char *propq)
+void *ecdsa_newctx(void *provctx, const char *propq)
{
PROV_ECDSA_CTX *ctx;
@@ -370,7 +370,7 @@ int ecdsa_digest_verify_final(void *vctx
return ecdsa_verify(ctx, sig, siglen, digest, (size_t)dlen);
}
-static void ecdsa_freectx(void *vctx)
+void ecdsa_freectx(void *vctx)
{
PROV_ECDSA_CTX *ctx = (PROV_ECDSA_CTX *)vctx;
@@ -581,6 +581,35 @@ 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 },
diff -up openssl-3.0.7/providers/implementations/keymgmt/rsa_kmgmt.c.pairwise openssl-3.0.7/providers/implementations/keymgmt/rsa_kmgmt.c
--- openssl-3.0.7/providers/implementations/keymgmt/rsa_kmgmt.c.pairwise 2023-02-20 16:04:27.103364713 +0100
+++ openssl-3.0.7/providers/implementations/keymgmt/rsa_kmgmt.c 2023-02-20 16:14:13.848119419 +0100
@@ -434,6 +434,7 @@ 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
};
@@ -447,6 +448,12 @@ 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[])
{
@@ -474,6 +481,10 @@ 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:
@@ -630,6 +641,11 @@ 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);
@@ -645,6 +662,8 @@ 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);
diff -up openssl-3.0.7/providers/implementations/signature/rsa_sig.c.pairwise openssl-3.0.7/providers/implementations/signature/rsa_sig.c
--- openssl-3.0.7/providers/implementations/signature/rsa_sig.c.pairwise 2023-02-20 16:04:22.548327811 +0100
+++ openssl-3.0.7/providers/implementations/signature/rsa_sig.c 2023-02-20 16:17:50.064871695 +0100
@@ -36,7 +36,7 @@
#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;
@@ -49,7 +49,7 @@ 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_signverify_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_get_ctx_params_fn rsa_get_ctx_params;
static OSSL_FUNC_signature_gettable_ctx_params_fn rsa_gettable_ctx_params;
@@ -172,7 +172,7 @@ 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;
@@ -990,7 +990,7 @@ int rsa_digest_verify_final(void *vprsac
return rsa_verify(vprsactx, sig, siglen, digest, (size_t)dlen);
}
-static void rsa_freectx(void *vprsactx)
+void rsa_freectx(void *vprsactx)
{
PROV_RSA_CTX *prsactx = (PROV_RSA_CTX *)vprsactx;
@@ -1504,6 +1504,45 @@ 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_signverify_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_signverify_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 },
diff --git a/crypto/rsa/rsa_gen.c b/crypto/rsa/rsa_gen.c
index e0d139d..35f23b2 100644
--- a/crypto/rsa/rsa_gen.c
+++ b/crypto/rsa/rsa_gen.c
@@ -463,6 +463,9 @@ static int rsa_keygen(OSSL_LIB_CTX *libctx, RSA *rsa, int bits, int primes,
rsa->dmp1 = NULL;
rsa->dmq1 = NULL;
rsa->iqmp = NULL;
+#ifdef FIPS_MODULE
+ abort();
+#endif /* defined(FIPS_MODULE) */
}
}
return ok;
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