int tls1_new(SSL *s)
{
if (!ssl3_new(s))
- return (0);
- s->method->ssl_clear(s);
- return (1);
+ return 0;
+ if (!s->method->ssl_clear(s))
+ return 0;
+
+ return 1;
}
void tls1_free(SSL *s)
ssl3_free(s);
}
-void tls1_clear(SSL *s)
+int tls1_clear(SSL *s)
{
- ssl3_clear(s);
+ if (!ssl3_clear(s))
+ return 0;
+
if (s->method->version == TLS_ANY_VERSION)
s->version = TLS_MAX_VERSION;
else
s->version = s->method->version;
+
+ return 1;
}
#ifndef OPENSSL_NO_EC
return rv;
}
-# ifndef OPENSSL_NO_EC
/*
* tls1_check_ec_tmp_key - Check EC temporary key compatibility
* @s: SSL connection
return 1;
return 0;
}
-# endif /* OPENSSL_NO_EC */
#else
TLSEXT_SIGALG_rsa_pkcs1_sha512,
#ifndef OPENSSL_NO_EC
+ TLSEXT_SIGALG_ecdsa_sha224,
TLSEXT_SIGALG_ecdsa_sha1,
#endif
+ TLSEXT_SIGALG_rsa_pkcs1_sha224,
TLSEXT_SIGALG_rsa_pkcs1_sha1,
#ifndef OPENSSL_NO_DSA
+ TLSEXT_SIGALG_dsa_sha224,
TLSEXT_SIGALG_dsa_sha1,
TLSEXT_SIGALG_dsa_sha256,
{"ecdsa_secp521r1_sha512", TLSEXT_SIGALG_ecdsa_secp521r1_sha512,
NID_sha512, SSL_MD_SHA512_IDX, EVP_PKEY_EC, SSL_PKEY_ECC,
NID_ecdsa_with_SHA512, NID_secp521r1},
+ {NULL, TLSEXT_SIGALG_ecdsa_sha224,
+ NID_sha224, SSL_MD_SHA224_IDX, EVP_PKEY_EC, SSL_PKEY_ECC,
+ NID_ecdsa_with_SHA224, NID_undef},
{NULL, TLSEXT_SIGALG_ecdsa_sha1,
NID_sha1, SSL_MD_SHA1_IDX, EVP_PKEY_EC, SSL_PKEY_ECC,
NID_ecdsa_with_SHA1, NID_undef},
{"rsa_pkcs1_sha512", TLSEXT_SIGALG_rsa_pkcs1_sha512,
NID_sha512, SSL_MD_SHA512_IDX, EVP_PKEY_RSA, SSL_PKEY_RSA,
NID_sha512WithRSAEncryption, NID_undef},
+ {"rsa_pkcs1_sha224", TLSEXT_SIGALG_rsa_pkcs1_sha224,
+ NID_sha224, SSL_MD_SHA224_IDX, EVP_PKEY_RSA, SSL_PKEY_RSA,
+ NID_sha224WithRSAEncryption, NID_undef},
{"rsa_pkcs1_sha1", TLSEXT_SIGALG_rsa_pkcs1_sha1,
NID_sha1, SSL_MD_SHA1_IDX, EVP_PKEY_RSA, SSL_PKEY_RSA,
NID_sha1WithRSAEncryption, NID_undef},
{NULL, TLSEXT_SIGALG_dsa_sha512,
NID_sha512, SSL_MD_SHA512_IDX, EVP_PKEY_DSA, SSL_PKEY_DSA_SIGN,
NID_undef, NID_undef},
+ {NULL, TLSEXT_SIGALG_dsa_sha224,
+ NID_sha224, SSL_MD_SHA224_IDX, EVP_PKEY_DSA, SSL_PKEY_DSA_SIGN,
+ NID_undef, NID_undef},
{NULL, TLSEXT_SIGALG_dsa_sha1,
NID_sha1, SSL_MD_SHA1_IDX, EVP_PKEY_DSA, SSL_PKEY_DSA_SIGN,
NID_dsaWithSHA1, NID_undef},
return 1;
}
-static int tls_sigalg_get_sig(uint16_t sigalg)
-{
- const SIGALG_LOOKUP *r = tls1_lookup_sigalg(sigalg);
-
- return r != NULL ? r->sig : 0;
-}
-
size_t tls12_get_psigalgs(SSL *s, int sent, const uint16_t **psigs)
{
/*
}
lu = tls1_lookup_sigalg(sig);
/*
- * Check sigalgs is known and key type is consistent with signature:
- * RSA keys can be used for RSA-PSS
+ * Check sigalgs is known. Disallow SHA1/SHA224 with TLS 1.3. Check key type
+ * is consistent with signature: RSA keys can be used for RSA-PSS
*/
- if (lu == NULL || (pkeyid != lu->sig
+ if (lu == NULL
+ || (SSL_IS_TLS13(s) && (lu->hash == NID_sha1 || lu->hash == NID_sha224))
+ || (pkeyid != lu->sig
&& (lu->sig != EVP_PKEY_RSA_PSS || pkeyid != EVP_PKEY_RSA))) {
SSLerr(SSL_F_TLS12_CHECK_PEER_SIGALG, SSL_R_WRONG_SIGNATURE_TYPE);
return 0;
int curve = EC_GROUP_get_curve_name(EC_KEY_get0_group(ec));
if (SSL_IS_TLS13(s)) {
+ if (EC_KEY_get_conv_form(ec) != POINT_CONVERSION_UNCOMPRESSED) {
+ SSLerr(SSL_F_TLS12_CHECK_PEER_SIGALG,
+ SSL_R_ILLEGAL_POINT_COMPRESSION);
+ return 0;
+ }
/* For TLS 1.3 check curve matches signature algorithm */
-
if (lu->curve != NID_undef && curve != lu->curve) {
SSLerr(SSL_F_TLS12_CHECK_PEER_SIGALG, SSL_R_WRONG_CURVE);
return 0;
s->s3->tmp.mask_a = 0;
s->s3->tmp.mask_k = 0;
ssl_set_sig_mask(&s->s3->tmp.mask_a, s, SSL_SECOP_SIGALG_MASK);
- ssl_get_client_min_max_version(s, &s->s3->tmp.min_ver, &s->s3->tmp.max_ver);
+ ssl_get_min_max_version(s, &s->s3->tmp.min_ver, &s->s3->tmp.max_ver);
#ifndef OPENSSL_NO_PSK
/* with PSK there must be client callback set */
if (!s->psk_client_callback) {
* @s: SSL connection that you want to use the cipher on
* @c: cipher to check
* @op: Security check that you want to do
+ * @ecdhe: If set to 1 then TLSv1 ECDHE ciphers are also allowed in SSLv3
*
* Returns 1 when it's disabled, 0 when enabled.
*/
-int ssl_cipher_disabled(SSL *s, const SSL_CIPHER *c, int op)
+int ssl_cipher_disabled(SSL *s, const SSL_CIPHER *c, int op, int ecdhe)
{
if (c->algorithm_mkey & s->s3->tmp.mask_k
|| c->algorithm_auth & s->s3->tmp.mask_a)
return 1;
if (s->s3->tmp.max_ver == 0)
return 1;
- if (!SSL_IS_DTLS(s) && ((c->min_tls > s->s3->tmp.max_ver)
- || (c->max_tls < s->s3->tmp.min_ver)))
- return 1;
+ if (!SSL_IS_DTLS(s)) {
+ int min_tls = c->min_tls;
+
+ /*
+ * For historical reasons we will allow ECHDE to be selected by a server
+ * in SSLv3 if we are a client
+ */
+ if (min_tls == TLS1_VERSION && ecdhe
+ && (c->algorithm_mkey & (SSL_kECDHE | SSL_kECDHEPSK)) != 0)
+ min_tls = SSL3_VERSION;
+
+ if ((min_tls > s->s3->tmp.max_ver) || (c->max_tls < s->s3->tmp.min_ver))
+ return 1;
+ }
if (SSL_IS_DTLS(s) && (DTLS_VERSION_GT(c->min_dtls, s->s3->tmp.max_ver)
|| DTLS_VERSION_LT(c->max_dtls, s->s3->tmp.min_ver)))
return 1;
}
if (s->cert->shared_sigalgs != NULL)
return 1;
- /* Fatal error is no shared signature algorithms */
+ /* Fatal error if no shared signature algorithms */
SSLerr(SSL_F_TLS1_SET_SERVER_SIGALGS, SSL_R_NO_SHARED_SIGNATURE_ALGORITHMS);
- al = SSL_AD_ILLEGAL_PARAMETER;
+ al = SSL_AD_HANDSHAKE_FAILURE;
err:
ssl3_send_alert(s, SSL3_AL_FATAL, al);
return 0;
p = sdec;
sess = d2i_SSL_SESSION(NULL, &p, slen);
+ slen -= p - sdec;
OPENSSL_free(sdec);
if (sess) {
/* Some additional consistency checks */
- if (p != sdec + slen || sess->session_id_length != 0) {
+ if (slen != 0 || sess->session_id_length != 0) {
SSL_SESSION_free(sess);
- return 2;
+ return TICKET_NO_DECRYPT;
}
/*
* The session ID, if non-empty, is used by some clients to detect
}
/* Check to see if a signature algorithm is allowed */
-static int tls12_sigalg_allowed(SSL *s, int op, uint16_t ptmp)
+static int tls12_sigalg_allowed(SSL *s, int op, const SIGALG_LOOKUP *lu)
{
- const SIGALG_LOOKUP *lu = tls1_lookup_sigalg(ptmp);
unsigned char sigalgstr[2];
int secbits;
/* See if sigalgs is recognised and if hash is enabled */
if (lu == NULL || ssl_md(lu->hash_idx) == NULL)
return 0;
+ /* DSA is not allowed in TLS 1.3 */
+ if (SSL_IS_TLS13(s) && lu->sig == EVP_PKEY_DSA)
+ return 0;
/* See if public key algorithm allowed */
if (tls12_get_pkey_idx(lu->sig) == -1)
return 0;
/* Security bits: half digest bits */
secbits = EVP_MD_size(ssl_md(lu->hash_idx)) * 4;
/* Finally see if security callback allows it */
- sigalgstr[0] = (ptmp >> 8) & 0xff;
- sigalgstr[1] = ptmp & 0xff;
+ sigalgstr[0] = (lu->sigalg >> 8) & 0xff;
+ sigalgstr[1] = lu->sigalg & 0xff;
return ssl_security(s, op, secbits, lu->hash, (void *)sigalgstr);
}
*/
sigalgslen = tls12_get_psigalgs(s, 1, &sigalgs);
for (i = 0; i < sigalgslen; i ++, sigalgs++) {
- switch (tls_sigalg_get_sig(*sigalgs)) {
+ const SIGALG_LOOKUP *lu = tls1_lookup_sigalg(*sigalgs);
+
+ if (lu == NULL)
+ continue;
+ switch (lu->sig) {
#ifndef OPENSSL_NO_RSA
/* Any RSA-PSS signature algorithms also mean we allow RSA */
case EVP_PKEY_RSA_PSS:
case EVP_PKEY_RSA:
- if (!have_rsa && tls12_sigalg_allowed(s, op, *sigalgs))
+ if (!have_rsa && tls12_sigalg_allowed(s, op, lu))
have_rsa = 1;
break;
#endif
#ifndef OPENSSL_NO_DSA
case EVP_PKEY_DSA:
- if (!have_dsa && tls12_sigalg_allowed(s, op, *sigalgs))
+ if (!have_dsa && tls12_sigalg_allowed(s, op, lu))
have_dsa = 1;
break;
#endif
#ifndef OPENSSL_NO_EC
case EVP_PKEY_EC:
- if (!have_ecdsa && tls12_sigalg_allowed(s, op, *sigalgs))
+ if (!have_ecdsa && tls12_sigalg_allowed(s, op, lu))
have_ecdsa = 1;
break;
#endif
const uint16_t *psig, size_t psiglen)
{
size_t i;
+ int rv = 0;
for (i = 0; i < psiglen; i++, psig++) {
- if (tls12_sigalg_allowed(s, SSL_SECOP_SIGALG_SUPPORTED, *psig)) {
- if (!WPACKET_put_bytes_u16(pkt, *psig))
- return 0;
- }
- }
- return 1;
+ const SIGALG_LOOKUP *lu = tls1_lookup_sigalg(*psig);
+
+ if (!tls12_sigalg_allowed(s, SSL_SECOP_SIGALG_SUPPORTED, lu))
+ continue;
+ if (!WPACKET_put_bytes_u16(pkt, *psig))
+ return 0;
+ /*
+ * If TLS 1.3 must have at least one valid TLS 1.3 message
+ * signing algorithm: i.e. neither RSA nor SHA1/SHA224
+ */
+ if (rv == 0 && (!SSL_IS_TLS13(s)
+ || (lu->sig != EVP_PKEY_RSA
+ && lu->hash != NID_sha1
+ && lu->hash != NID_sha224)))
+ rv = 1;
+ }
+ if (rv == 0)
+ SSLerr(SSL_F_TLS12_COPY_SIGALGS, SSL_R_NO_SUITABLE_SIGNATURE_ALGORITHM);
+ return rv;
}
/* Given preference and allowed sigalgs set shared sigalgs */
const uint16_t *ptmp, *atmp;
size_t i, j, nmatch = 0;
for (i = 0, ptmp = pref; i < preflen; i++, ptmp++) {
+ const SIGALG_LOOKUP *lu = tls1_lookup_sigalg(*ptmp);
+
/* Skip disabled hashes or signature algorithms */
- if (!tls12_sigalg_allowed(s, SSL_SECOP_SIGALG_SHARED, *ptmp))
+ if (!tls12_sigalg_allowed(s, SSL_SECOP_SIGALG_SHARED, lu))
continue;
for (j = 0, atmp = allow; j < allowlen; j++, atmp++) {
if (*ptmp == *atmp) {
nmatch++;
- if (shsig) {
- *shsig = tls1_lookup_sigalg(*ptmp);
- shsig++;
- }
+ if (shsig)
+ *shsig++ = lu;
break;
}
}
size = PACKET_remaining(pkt);
/* Invalid data length */
- if ((size & 1) != 0)
+ if (size == 0 || (size & 1) != 0)
return 0;
size >>= 1;
* attempting to use them.
*/
-/* Flags which need to be set for a certificate when stict mode not set */
+/* Flags which need to be set for a certificate when strict mode not set */
#define CERT_PKEY_VALID_FLAGS \
(CERT_PKEY_EE_SIGNATURE|CERT_PKEY_EE_PARAM)
rv |= CERT_PKEY_CERT_TYPE;
}
- ca_dn = s->s3->tmp.ca_names;
+ ca_dn = s->s3->tmp.peer_ca_names;
if (!sk_X509_NAME_num(ca_dn))
rv |= CERT_PKEY_ISSUER_NAME;
tls1_check_chain(s, NULL, NULL, NULL, SSL_PKEY_GOST12_512);
}
-/* User level utiity function to check a chain is suitable */
+/* User level utility function to check a chain is suitable */
int SSL_check_chain(SSL *s, X509 *x, EVP_PKEY *pk, STACK_OF(X509) *chain)
{
return tls1_check_chain(s, x, pk, chain, -1);
static int ssl_security_cert_sig(SSL *s, SSL_CTX *ctx, X509 *x, int op)
{
/* Lookup signature algorithm digest */
- int secbits = -1, md_nid = NID_undef, sig_nid;
+ int secbits, nid, pknid;
/* Don't check signature if self signed */
if ((X509_get_extension_flags(x) & EXFLAG_SS) != 0)
return 1;
- sig_nid = X509_get_signature_nid(x);
- if (sig_nid && OBJ_find_sigid_algs(sig_nid, &md_nid, NULL)) {
- const EVP_MD *md;
- if (md_nid && (md = EVP_get_digestbynid(md_nid)))
- secbits = EVP_MD_size(md) * 4;
- }
+ if (!X509_get_signature_info(x, &nid, &pknid, &secbits, NULL))
+ secbits = -1;
+ /* If digest NID not defined use signature NID */
+ if (nid == NID_undef)
+ nid = pknid;
if (s)
- return ssl_security(s, op, secbits, md_nid, x);
+ return ssl_security(s, op, secbits, nid, x);
else
- return ssl_ctx_security(ctx, op, secbits, md_nid, x);
+ return ssl_ctx_security(ctx, op, secbits, nid, x);
}
int ssl_security_cert(SSL *s, SSL_CTX *ctx, X509 *x, int vfy, int is_ee)
}
/*
- * Check security of a chain, if sk includes the end entity certificate then
- * x is NULL. If vfy is 1 then we are verifying a peer chain and not sending
+ * Check security of a chain, if |sk| includes the end entity certificate then
+ * |x| is NULL. If |vfy| is 1 then we are verifying a peer chain and not sending
* one to the peer. Return values: 1 if ok otherwise error code to use
*/
if (SSL_IS_TLS13(s)) {
size_t i;
#ifndef OPENSSL_NO_EC
- int curve = -1;
+ int curve = -1, skip_ec = 0;
#endif
- /* Look for a certificate matching shared sigaglgs */
+ /* Look for a certificate matching shared sigalgs */
for (i = 0; i < s->cert->shared_sigalgslen; i++) {
lu = s->cert->shared_sigalgs[i];
- /* Skip DSA and RSA if not PSS */
- if (lu->sig == EVP_PKEY_DSA || lu->sig == EVP_PKEY_RSA)
+ /* Skip SHA1, SHA224, DSA and RSA if not PSS */
+ if (lu->hash == NID_sha1
+ || lu->hash == NID_sha224
+ || lu->sig == EVP_PKEY_DSA
+ || lu->sig == EVP_PKEY_RSA)
continue;
if (ssl_md(lu->hash_idx) == NULL)
continue;
EC_KEY *ec = EVP_PKEY_get0_EC_KEY(s->cert->pkeys[idx].privatekey);
curve = EC_GROUP_get_curve_name(EC_KEY_get0_group(ec));
+ if (EC_KEY_get_conv_form(ec)
+ != POINT_CONVERSION_UNCOMPRESSED)
+ skip_ec = 1;
}
- if (lu->curve != NID_undef && curve != lu->curve)
+ if (skip_ec || (lu->curve != NID_undef && curve != lu->curve))
continue;
#else
continue;
if (idx == -1)
return 1;
if (idx == SSL_PKEY_GOST_EC) {
- /* Work out which GOST certificate is avaiable */
+ /* Work out which GOST certificate is available */
if (ssl_has_cert(s, SSL_PKEY_GOST12_512)) {
idx = SSL_PKEY_GOST12_512;
} else if (ssl_has_cert(s, SSL_PKEY_GOST12_256)) {
if (SSL_USE_SIGALGS(s)) {
if (s->s3->tmp.peer_sigalgs != NULL) {
size_t i;
+#ifndef OPENSSL_NO_EC
+ int curve;
+
+ /* For Suite B need to match signature algorithm to curve */
+ if (tls1_suiteb(s)) {
+ EC_KEY *ec = EVP_PKEY_get0_EC_KEY(s->cert->pkeys[idx].privatekey);
+ curve = EC_GROUP_get_curve_name(EC_KEY_get0_group(ec));
+ } else {
+ curve = -1;
+ }
+#endif
/*
* Find highest preference signature algorithm matching
*/
for (i = 0; i < s->cert->shared_sigalgslen; i++) {
lu = s->cert->shared_sigalgs[i];
+#ifdef OPENSSL_NO_EC
if (lu->sig_idx == idx)
break;
+#else
+ if (lu->sig_idx == idx
+ && (curve == -1 || lu->curve == curve))
+ break;
+#endif
if (idx == SSL_PKEY_RSA && lu->sig == EVP_PKEY_RSA_PSS)
break;
}
if (al == NULL)
return 1;
SSLerr(SSL_F_TLS_CHOOSE_SIGALG, SSL_R_WRONG_SIGNATURE_TYPE);
- *al = SSL_AD_HANDSHAKE_FAILURE;
+ *al = SSL_AD_ILLEGAL_PARAMETER;
return 0;
}
}
projects / openssl.git / blobdiff