/[smecontribs]/rpms/openssl3/contribs10/0044-FIPS-140-3-keychecks.patch
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Annotation of /rpms/openssl3/contribs10/0044-FIPS-140-3-keychecks.patch

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Revision 1.1 - (hide annotations) (download)
Wed Jan 31 17:24:38 2024 UTC (9 months, 3 weeks ago) by jpp
Branch: MAIN
CVS Tags: openssl3-3_0_7-5_el7_sme_1, HEAD 
Initial import
1 jpp 1.1 diff -up openssl-3.0.1/crypto/dh/dh_key.c.fips3 openssl-3.0.1/crypto/dh/dh_key.c
2     --- openssl-3.0.1/crypto/dh/dh_key.c.fips3 2022-07-18 16:01:41.159543735 +0200
3     +++ openssl-3.0.1/crypto/dh/dh_key.c 2022-07-18 16:24:30.251388248 +0200
4     @@ -43,6 +43,9 @@ int ossl_dh_compute_key(unsigned char *k
5     BN_MONT_CTX *mont = NULL;
6     BIGNUM *z = NULL, *pminus1;
7     int ret = -1;
8     +#ifdef FIPS_MODULE
9     + int validate = 0;
10     +#endif
11    
12     if (BN_num_bits(dh->params.p) > OPENSSL_DH_MAX_MODULUS_BITS) {
13     ERR_raise(ERR_LIB_DH, DH_R_MODULUS_TOO_LARGE);
14     @@ -54,6 +57,13 @@ int ossl_dh_compute_key(unsigned char *k
15     return 0;
16     }
17    
18     +#ifdef FIPS_MODULE
19     + if (DH_check_pub_key(dh, pub_key, &validate) <= 0) {
20     + ERR_raise(ERR_LIB_DH, DH_R_CHECK_PUBKEY_INVALID);
21     + return 0;
22     + }
23     +#endif
24     +
25     ctx = BN_CTX_new_ex(dh->libctx);
26     if (ctx == NULL)
27     goto err;
28     @@ -262,6 +272,9 @@ static int generate_key(DH *dh)
29     #endif
30     BN_CTX *ctx = NULL;
31     BIGNUM *pub_key = NULL, *priv_key = NULL;
32     +#ifdef FIPS_MODULE
33     + int validate = 0;
34     +#endif
35    
36     if (BN_num_bits(dh->params.p) > OPENSSL_DH_MAX_MODULUS_BITS) {
37     ERR_raise(ERR_LIB_DH, DH_R_MODULUS_TOO_LARGE);
38     @@ -354,8 +367,23 @@ static int generate_key(DH *dh)
39     if (!ossl_dh_generate_public_key(ctx, dh, priv_key, pub_key))
40     goto err;
41    
42     +#ifdef FIPS_MODULE
43     + if (DH_check_pub_key(dh, pub_key, &validate) <= 0) {
44     + ERR_raise(ERR_LIB_DH, DH_R_CHECK_PUBKEY_INVALID);
45     + goto err;
46     + }
47     +#endif
48     +
49     dh->pub_key = pub_key;
50     dh->priv_key = priv_key;
51     +#ifdef FIPS_MODULE
52     + if (ossl_dh_check_pairwise(dh) <= 0) {
53     + dh->pub_key = dh->priv_key = NULL;
54     + ERR_raise(ERR_LIB_DH, DH_R_CHECK_PUBKEY_INVALID);
55     + goto err;
56     + }
57     +#endif
58     +
59     dh->dirty_cnt++;
60     ok = 1;
61     err:
62     diff -up openssl-3.0.1/crypto/ec/ec_key.c.fips3 openssl-3.0.1/crypto/ec/ec_key.c
63     diff -up openssl-3.0.1/providers/implementations/exchange/ecdh_exch.c.fips3 openssl-3.0.1/providers/implementations/exchange/ecdh_exch.c
64     --- openssl-3.0.1/providers/implementations/exchange/ecdh_exch.c.fips3 2022-07-25 13:42:46.814952053 +0200
65     +++ openssl-3.0.1/providers/implementations/exchange/ecdh_exch.c 2022-07-25 13:52:12.292065706 +0200
66     @@ -488,6 +488,25 @@ int ecdh_plain_derive(void *vpecdhctx, u
67     }
68    
69     ppubkey = EC_KEY_get0_public_key(pecdhctx->peerk);
70     +#ifdef FIPS_MODULE
71     + {
72     + BN_CTX *bn_ctx = BN_CTX_new_ex(ossl_ec_key_get_libctx(privk));
73     + int check = 0;
74     +
75     + if (bn_ctx == NULL) {
76     + ERR_raise(ERR_LIB_PROV, ERR_R_MALLOC_FAILURE);
77     + goto end;
78     + }
79     +
80     + check = ossl_ec_key_public_check(pecdhctx->peerk, bn_ctx);
81     + BN_CTX_free(bn_ctx);
82     +
83     + if (check <= 0) {
84     + ERR_raise(ERR_LIB_PROV, EC_R_INVALID_PEER_KEY);
85     + goto end;
86     + }
87     + }
88     +#endif
89    
90     retlen = ECDH_compute_key(secret, size, ppubkey, privk, NULL);
91    
92     diff -up openssl-3.0.1/crypto/ec/ec_key.c.fips3 openssl-3.0.1/crypto/ec/ec_key.c
93     --- openssl-3.0.1/crypto/ec/ec_key.c.fips3 2022-07-25 14:03:34.420222507 +0200
94     +++ openssl-3.0.1/crypto/ec/ec_key.c 2022-07-25 14:09:00.728164294 +0200
95     @@ -336,6 +336,11 @@ static int ec_generate_key(EC_KEY *eckey
96    
97     OSSL_SELF_TEST_get_callback(eckey->libctx, &cb, &cbarg);
98     ok = ecdsa_keygen_pairwise_test(eckey, cb, cbarg);
99     +
100     +#ifdef FIPS_MODULE
101     + ok &= ossl_ec_key_public_check(eckey, ctx);
102     + ok &= ossl_ec_key_pairwise_check(eckey, ctx);
103     +#endif /* FIPS_MODULE */
104     }
105     err:
106     /* Step (9): If there is an error return an invalid keypair. */
107     diff -up openssl-3.0.1/crypto/rsa/rsa_gen.c.fips3 openssl-3.0.1/crypto/rsa/rsa_gen.c
108     --- openssl-3.0.1/crypto/rsa/rsa_gen.c.fips3 2022-07-25 17:02:17.807271297 +0200
109     +++ openssl-3.0.1/crypto/rsa/rsa_gen.c 2022-07-25 17:18:24.931959649 +0200
110     @@ -23,6 +23,7 @@
111     #include <time.h>
112     #include "internal/cryptlib.h"
113     #include <openssl/bn.h>
114     +#include <openssl/obj_mac.h>
115     #include <openssl/self_test.h>
116     #include "prov/providercommon.h"
117     #include "rsa_local.h"
118     @@ -476,52 +476,43 @@ static int rsa_keygen(OSSL_LIB_CTX *libc
119     static int rsa_keygen_pairwise_test(RSA *rsa, OSSL_CALLBACK *cb, void *cbarg)
120     {
121     int ret = 0;
122     - unsigned int ciphertxt_len;
123     - unsigned char *ciphertxt = NULL;
124     - const unsigned char plaintxt[16] = {0};
125     - unsigned char *decoded = NULL;
126     - unsigned int decoded_len;
127     - unsigned int plaintxt_len = (unsigned int)sizeof(plaintxt_len);
128     - int padding = RSA_PKCS1_PADDING;
129     + unsigned int signature_len;
130     + unsigned char *signature = NULL;
131     OSSL_SELF_TEST *st = NULL;
132     + static const unsigned char dgst[] = {
133     + 0x7f, 0x83, 0xb1, 0x65, 0x7f, 0xf1, 0xfc, 0x53, 0xb9, 0x2d, 0xc1, 0x81,
134     + 0x48, 0xa1, 0xd6, 0x5d, 0xfc, 0x2d, 0x4b, 0x1f, 0xa3, 0xd6, 0x77, 0x28,
135     + 0x4a, 0xdd, 0xd2, 0x00, 0x12, 0x6d, 0x90, 0x69
136     + };
137    
138     st = OSSL_SELF_TEST_new(cb, cbarg);
139     if (st == NULL)
140     goto err;
141     OSSL_SELF_TEST_onbegin(st, OSSL_SELF_TEST_TYPE_PCT,
142     + /* No special name for RSA signature PCT*/
143     OSSL_SELF_TEST_DESC_PCT_RSA_PKCS1);
144    
145     - ciphertxt_len = RSA_size(rsa);
146     + signature_len = RSA_size(rsa);
147     - /*
148     - * RSA_private_encrypt() and RSA_private_decrypt() requires the 'to'
149     - * parameter to be a maximum of RSA_size() - allocate space for both.
150     - */
151     - ciphertxt = OPENSSL_zalloc(ciphertxt_len * 2);
152     - if (ciphertxt == NULL)
153     + signature = OPENSSL_zalloc(signature_len);
154     + if (signature == NULL)
155     goto err;
156     - decoded = ciphertxt + ciphertxt_len;
157    
158     - ciphertxt_len = RSA_public_encrypt(plaintxt_len, plaintxt, ciphertxt, rsa,
159     - padding);
160     - if (ciphertxt_len <= 0)
161     + if (RSA_sign(NID_sha256, dgst, sizeof(dgst), signature, &signature_len, rsa) <= 0)
162     goto err;
163     - if (ciphertxt_len == plaintxt_len
164     - && memcmp(ciphertxt, plaintxt, plaintxt_len) == 0)
165     +
166     + if (signature_len <= 0)
167     goto err;
168    
169     - OSSL_SELF_TEST_oncorrupt_byte(st, ciphertxt);
170     + OSSL_SELF_TEST_oncorrupt_byte(st, signature);
171    
172     - decoded_len = RSA_private_decrypt(ciphertxt_len, ciphertxt, decoded, rsa,
173     - padding);
174     - if (decoded_len != plaintxt_len
175     - || memcmp(decoded, plaintxt, decoded_len) != 0)
176     + if (RSA_verify(NID_sha256, dgst, sizeof(dgst), signature, signature_len, rsa) <= 0)
177     goto err;
178    
179     ret = 1;
180     err:
181     OSSL_SELF_TEST_onend(st, ret);
182     OSSL_SELF_TEST_free(st);
183     - OPENSSL_free(ciphertxt);
184     + OPENSSL_free(signature);
185    
186     return ret;
187     }
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