diff options
31 files changed, 543 insertions, 73 deletions
diff --git a/apps/apps.h b/apps/apps.h index 434ca54b7d..a310dd2b78 100644 --- a/apps/apps.h +++ b/apps/apps.h @@ -180,6 +180,7 @@ void wait_for_async(SSL *s); OPT_V_POLICY_PRINT, OPT_V_CHECK_SS_SIG, OPT_V_TRUSTED_FIRST, \ OPT_V_SUITEB_128_ONLY, OPT_V_SUITEB_128, OPT_V_SUITEB_192, \ OPT_V_PARTIAL_CHAIN, OPT_V_NO_ALT_CHAINS, OPT_V_NO_CHECK_TIME, \ + OPT_V_VERIFY_AUTH_LEVEL, \ OPT_V__LAST # define OPT_V_OPTIONS \ @@ -187,8 +188,10 @@ void wait_for_async(SSL *s); { "purpose", OPT_V_PURPOSE, 's', \ "certificate chain purpose"}, \ { "verify_name", OPT_V_VERIFY_NAME, 's', "verification policy name"}, \ - { "verify_depth", OPT_V_VERIFY_DEPTH, 'p', \ - "chain depth limit"}, \ + { "verify_depth", OPT_V_VERIFY_DEPTH, 'n', \ + "chain depth limit" }, \ + { "auth_level", OPT_V_VERIFY_AUTH_LEVEL, 'n', \ + "chain authentication security level" }, \ { "attime", OPT_V_ATTIME, 'M', "verification epoch time" }, \ { "verify_hostname", OPT_V_VERIFY_HOSTNAME, 's', \ "expected peer hostname" }, \ @@ -235,6 +238,7 @@ void wait_for_async(SSL *s); case OPT_V_PURPOSE: \ case OPT_V_VERIFY_NAME: \ case OPT_V_VERIFY_DEPTH: \ + case OPT_V_VERIFY_AUTH_LEVEL: \ case OPT_V_ATTIME: \ case OPT_V_VERIFY_HOSTNAME: \ case OPT_V_VERIFY_EMAIL: \ diff --git a/apps/opt.c b/apps/opt.c index af994bb743..462894a938 100644 --- a/apps/opt.c +++ b/apps/opt.c @@ -526,6 +526,11 @@ int opt_verify(int opt, X509_VERIFY_PARAM *vpm) if (i >= 0) X509_VERIFY_PARAM_set_depth(vpm, i); break; + case OPT_V_VERIFY_AUTH_LEVEL: + i = atoi(opt_arg()); + if (i >= 0) + X509_VERIFY_PARAM_set_auth_level(vpm, i); + break; case OPT_V_ATTIME: if (!opt_imax(opt_arg(), &t)) return 0; diff --git a/crypto/x509/x509_lcl.h b/crypto/x509/x509_lcl.h index 0726201e8f..603c17737f 100644 --- a/crypto/x509/x509_lcl.h +++ b/crypto/x509/x509_lcl.h @@ -70,6 +70,7 @@ struct X509_VERIFY_PARAM_st { int purpose; /* purpose to check untrusted certificates */ int trust; /* trust setting to check */ int depth; /* Verify depth */ + int auth_level; /* Security level for chain verification */ STACK_OF(ASN1_OBJECT) *policies; /* Permissible policies */ /* Peer identity details */ STACK_OF(OPENSSL_STRING) *hosts; /* Set of acceptable names */ diff --git a/crypto/x509/x509_txt.c b/crypto/x509/x509_txt.c index f7f27e97ef..8a9a7f0444 100644 --- a/crypto/x509/x509_txt.c +++ b/crypto/x509/x509_txt.c @@ -203,6 +203,12 @@ const char *X509_verify_cert_error_string(long n) return ("IP address mismatch"); case X509_V_ERR_DANE_NO_MATCH: return ("No matching DANE TLSA records"); + case X509_V_ERR_EE_KEY_TOO_SMALL: + return ("EE certificate key too weak"); + case X509_V_ERR_CA_KEY_TOO_SMALL: + return ("CA certificate key too weak"); + case X509_V_ERR_CA_MD_TOO_WEAK: + return ("CA signature digest algorithm too weak"); default: /* Printing an error number into a static buffer is not thread-safe */ diff --git a/crypto/x509/x509_vfy.c b/crypto/x509/x509_vfy.c index 92f1c5c447..10fbeeff6d 100644 --- a/crypto/x509/x509_vfy.c +++ b/crypto/x509/x509_vfy.c @@ -126,6 +126,8 @@ static int check_cert(X509_STORE_CTX *ctx); static int check_policy(X509_STORE_CTX *ctx); static int get_issuer_sk(X509 **issuer, X509_STORE_CTX *ctx, X509 *x); static int check_dane_issuer(X509_STORE_CTX *ctx, int depth); +static int check_key_level(X509_STORE_CTX *ctx, X509 *cert); +static int check_sig_level(X509_STORE_CTX *ctx, X509 *cert); static int get_crl_score(X509_STORE_CTX *ctx, X509 **pissuer, unsigned int *preasons, X509_CRL *crl, X509 *x); @@ -221,6 +223,35 @@ static int verify_cb_crl(X509_STORE_CTX *ctx, int err) return ctx->verify_cb(0, ctx); } +static int check_auth_level(X509_STORE_CTX *ctx) +{ + int i; + int num = sk_X509_num(ctx->chain); + + if (ctx->param->auth_level <= 0) + return 1; + + for (i = 0; i < num; ++i) { + X509 *cert = sk_X509_value(ctx->chain, i); + + /* + * We've already checked the security of the leaf key, so here we only + * check the security of issuer keys. + */ + if (i > 0 && !check_key_level(ctx, cert) && + verify_cb_cert(ctx, cert, i, X509_V_ERR_CA_KEY_TOO_SMALL) == 0) + return 0; + /* + * We also check the signature algorithm security of all certificates + * except those of the trust anchor at index num-1. + */ + if (i < num - 1 && !check_sig_level(ctx, cert) && + verify_cb_cert(ctx, cert, i, X509_V_ERR_CA_MD_TOO_WEAK) == 0) + return 0; + } + return 1; +} + static int verify_chain(X509_STORE_CTX *ctx) { int err; @@ -232,6 +263,7 @@ static int verify_chain(X509_STORE_CTX *ctx) */ if ((ok = build_chain(ctx)) == 0 || (ok = check_chain_extensions(ctx)) == 0 || + (ok = check_auth_level(ctx)) == 0 || (ok = check_name_constraints(ctx)) == 0 || (ok = check_id(ctx)) == 0 || 1) X509_get_pubkey_parameters(NULL, ctx->chain); @@ -294,6 +326,11 @@ int X509_verify_cert(X509_STORE_CTX *ctx) X509_up_ref(ctx->cert); ctx->num_untrusted = 1; + /* If the peer's public key is too weak, we can stop early. */ + if (!check_key_level(ctx, ctx->cert) && + !verify_cb_cert(ctx, ctx->cert, 0, X509_V_ERR_EE_KEY_TOO_SMALL)) + return 0; + /* * If dane->trecs is an empty stack, we'll fail, since the user enabled * DANE. If none of the TLSA records were usable, and it makes sense to @@ -308,20 +345,19 @@ int X509_verify_cert(X509_STORE_CTX *ctx) /* * Given a STACK_OF(X509) find the issuer of cert (if any) */ - static X509 *find_issuer(X509_STORE_CTX *ctx, STACK_OF(X509) *sk, X509 *x) { int i; - X509 *issuer, *rv = NULL;; + for (i = 0; i < sk_X509_num(sk); i++) { - issuer = sk_X509_value(sk, i); - if (ctx->check_issued(ctx, x, issuer)) { - rv = issuer; - if (x509_check_cert_time(ctx, rv, -1)) - break; - } + X509 *issuer = sk_X509_value(sk, i); + + if (!ctx->check_issued(ctx, x, issuer)) + continue; + if (x509_check_cert_time(ctx, issuer, -1)) + return issuer; } - return rv; + return NULL; } /* Given a possible certificate and issuer check them */ @@ -2656,6 +2692,19 @@ static int dane_verify(X509_STORE_CTX *ctx) return verify_chain(ctx); } +/* Get issuer, without duplicate suppression */ +static int get_issuer(X509 **issuer, X509_STORE_CTX *ctx, X509 *cert) +{ + STACK_OF(X509) *saved_chain = ctx->chain; + int ok; + + ctx->chain = NULL; + ok = ctx->get_issuer(issuer, ctx, cert); + ctx->chain = saved_chain; + + return ok; +} + static int build_chain(X509_STORE_CTX *ctx) { struct dane_st *dane = (struct dane_st *)ctx->dane; @@ -2735,12 +2784,19 @@ static int build_chain(X509_STORE_CTX *ctx) /* * Look in the trust store if enabled for first lookup, or we've run - * out of untrusted issuers and search here is not disabled. When - * we exceed the depth limit, we simulate absence of a match. + * out of untrusted issuers and search here is not disabled. When we + * reach the depth limit, we stop extending the chain, if by that point + * we've not found a trust-anchor, any trusted chain would be too long. + * + * The error reported to the application verify callback is at the + * maximal valid depth with the current certificate equal to the last + * not ultimately-trusted issuer. For example, with verify_depth = 0, + * the callback will report errors at depth=1 when the immediate issuer + * of the leaf certificate is not a trust anchor. No attempt will be + * made to locate an issuer for that certificate, since such a chain + * would be a-priori too long. */ if ((search & S_DOTRUSTED) != 0) { - STACK_OF(X509) *hide = ctx->chain; - i = num = sk_X509_num(ctx->chain); if ((search & S_DOALTERNATE) != 0) { /* @@ -2762,10 +2818,7 @@ static int build_chain(X509_STORE_CTX *ctx) } x = sk_X509_value(ctx->chain, i-1); - /* Suppress duplicate suppression */ - ctx->chain = NULL; - ok = (depth < num) ? 0 : ctx->get_issuer(&xtmp, ctx, x); - ctx->chain = hide; + ok = (depth < num) ? 0 : get_issuer(&xtmp, ctx, x); if (ok < 0) { trust = X509_TRUST_REJECTED; @@ -2892,12 +2945,12 @@ static int build_chain(X509_STORE_CTX *ctx) num = sk_X509_num(ctx->chain); OPENSSL_assert(num == ctx->num_untrusted); x = sk_X509_value(ctx->chain, num-1); - xtmp = (depth < num) ? NULL : find_issuer(ctx, sktmp, x); /* * Once we run out of untrusted issuers, we stop looking for more * and start looking only in the trust store if enabled. */ + xtmp = (ss || depth < num) ? NULL : find_issuer(ctx, sktmp, x); if (xtmp == NULL) { search &= ~S_DOUNTRUSTED; if (may_trusted) @@ -2905,23 +2958,21 @@ static int build_chain(X509_STORE_CTX *ctx) continue; } - if (!sk_X509_push(ctx->chain, x = xtmp)) { + /* Drop this issuer from future consideration */ + (void) sk_X509_delete_ptr(sktmp, xtmp); + + if (!sk_X509_push(ctx->chain, xtmp)) { X509err(X509_F_BUILD_CHAIN, ERR_R_MALLOC_FAILURE); trust = X509_TRUST_REJECTED; search = 0; continue; } - X509_up_ref(x); + + X509_up_ref(x = xtmp); ++ctx->num_untrusted; ss = cert_self_signed(xtmp); /* - * Not strictly necessary, but saves cycles looking at the same - * certificates over and over. - */ - (void) sk_X509_delete_ptr(sktmp, x); - - /* * Check for DANE-TA trust of the topmost untrusted certificate. */ switch (trust = check_dane_issuer(ctx, ctx->num_untrusted - 1)) { @@ -2974,3 +3025,60 @@ static int build_chain(X509_STORE_CTX *ctx) X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT_LOCALLY); } } + +static const int minbits_table[] = { 80, 112, 128, 192, 256 }; +static const int NUM_AUTH_LEVELS = OSSL_NELEM(minbits_table); + +/* + * Check whether the public key of ``cert`` meets the security level of + * ``ctx``. + * + * Returns 1 on success, 0 otherwise. + */ +static int check_key_level(X509_STORE_CTX *ctx, X509 *cert) +{ + EVP_PKEY *pkey = X509_get0_pubkey(cert); + int level = ctx->param->auth_level; + + /* Unsupported or malformed keys are not secure */ + if (pkey == NULL) + return 0; + + if (level <= 0) + return 1; + if (level > NUM_AUTH_LEVELS) + level = NUM_AUTH_LEVELS; + + return EVP_PKEY_security_bits(pkey) >= minbits_table[level - 1]; +} + +/* + * Check whether the signature digest algorithm of ``cert`` meets the security + * level of ``ctx``. Should not be checked for trust anchors (whether + * self-signed or otherwise). + * + * Returns 1 on success, 0 otherwise. + */ +static int check_sig_level(X509_STORE_CTX *ctx, X509 *cert) +{ + int nid = X509_get_signature_nid(cert); + int mdnid = NID_undef; + int secbits = -1; + int level = ctx->param->auth_level; + + if (level <= 0) + return 1; + if (level > NUM_AUTH_LEVELS) + level = NUM_AUTH_LEVELS; + + /* Lookup signature algorithm digest */ + if (nid && OBJ_find_sigid_algs(nid, &mdnid, NULL)) { + const EVP_MD *md; + + /* Assume 4 bits of collision resistance for each hash octet */ + if (mdnid != NID_undef && (md = EVP_get_digestbynid(mdnid)) != NULL) + secbits = EVP_MD_size(md) * 4; + } + + return secbits >= minbits_table[level - 1]; +} diff --git a/crypto/x509/x509_vpm.c b/crypto/x509/x509_vpm.c index 41b0fde4a5..4a0bed021c 100644 --- a/crypto/x509/x509_vpm.c +++ b/crypto/x509/x509_vpm.c @@ -140,6 +140,7 @@ static void x509_verify_param_zero(X509_VERIFY_PARAM *param) param->inh_flags = 0; param->flags = 0; param->depth = -1; + param->auth_level = -1; /* -1 means unset, 0 is explicit */ sk_ASN1_OBJECT_pop_free(param->policies, ASN1_OBJECT_free); param->policies = NULL; sk_OPENSSL_STRING_pop_free(param->hosts, str_free); @@ -245,6 +246,7 @@ int X509_VERIFY_PARAM_inherit(X509_VERIFY_PARAM *dest, x509_verify_param_copy(purpose, 0); x509_verify_param_copy(trust, X509_TRUST_DEFAULT); x509_verify_param_copy(depth, -1); + x509_verify_param_copy(auth_level, -1); /* If overwrite or check time not set, copy across */ @@ -368,6 +370,11 @@ void X509_VERIFY_PARAM_set_depth(X509_VERIFY_PARAM *param, int depth) param->depth = depth; } +void X509_VERIFY_PARAM_set_auth_level(X509_VERIFY_PARAM *param, int auth_level) +{ + param->auth_level = auth_level; +} + void X509_VERIFY_PARAM_set_time(X509_VERIFY_PARAM *param, time_t t) { param->check_time = t; @@ -493,6 +500,11 @@ int X509_VERIFY_PARAM_get_depth(const X509_VERIFY_PARAM *param) return param->depth; } +int X509_VERIFY_PARAM_get_auth_level(const X509_VERIFY_PARAM *param) +{ + return param->auth_level; +} + const char *X509_VERIFY_PARAM_get0_name(const X509_VERIFY_PARAM *param) { return param->name; @@ -515,6 +527,7 @@ static const X509_VERIFY_PARAM default_table[] = { 0, /* purpose */ 0, /* trust */ 100, /* depth */ + -1, /* auth_level */ NULL, /* policies */ vpm_empty_id}, { @@ -525,6 +538,7 @@ static const X509_VERIFY_PARAM default_table[] = { X509_PURPOSE_SMIME_SIGN, /* purpose */ X509_TRUST_EMAIL, /* trust */ -1, /* depth */ + -1, /* auth_level */ NULL, /* policies */ vpm_empty_id}, { @@ -535,6 +549,7 @@ static const X509_VERIFY_PARAM default_table[] = { X509_PURPOSE_SMIME_SIGN, /* purpose */ X509_TRUST_EMAIL, /* trust */ -1, /* depth */ + -1, /* auth_level */ NULL, /* policies */ vpm_empty_id}, { @@ -545,6 +560,7 @@ static const X509_VERIFY_PARAM default_table[] = { X509_PURPOSE_SSL_CLIENT, /* purpose */ X509_TRUST_SSL_CLIENT, /* trust */ -1, /* depth */ + -1, /* auth_level */ NULL, /* policies */ vpm_empty_id}, { @@ -555,6 +571,7 @@ static const X509_VERIFY_PARAM default_table[] = { X509_PURPOSE_SSL_SERVER, /* purpose */ X509_TRUST_SSL_SERVER, /* trust */ -1, /* depth */ + -1, /* auth_level */ NULL, /* policies */ vpm_empty_id} }; diff --git a/doc/apps/cms.pod b/doc/apps/cms.pod index 36e6b3ca3a..42c351489c 100644 --- a/doc/apps/cms.pod +++ b/doc/apps/cms.pod @@ -58,6 +58,7 @@ B<openssl> B<cms> [B<-trusted_first>] [B<-no_alt_chains>] [B<-use_deltas>] +[B<-auth_level num>] [B<-verify_depth num>] [B<-verify_email email>] [B<-verify_hostname hostname>] @@ -475,8 +476,8 @@ B<-explicit_policy>, B<-extended_crl>, B<-ignore_critical>, B<-inhibit_any>, B<-inhibit_map>, B<-no_alt_chains>, B<-partial_chain>, B<-policy>, B<-policy_check>, B<-policy_print>, B<-purpose>, B<-suiteB_128>, B<-suiteB_128_only>, B<-suiteB_192>, B<-trusted_first>, B<-use_deltas>, -B<-verify_depth>, B<-verify_email>, B<-verify_hostname>, B<-verify_ip>, -B<-verify_name>, B<-x509_strict> +B<-auth_level>, B<-verify_depth>, B<-verify_email>, B<-verify_hostname>, +B<-verify_ip>, B<-verify_name>, B<-x509_strict> Set various certificate chain validation options. See the L<verify(1)> manual page for details. diff --git a/doc/apps/ocsp.pod b/doc/apps/ocsp.pod index be195bcb30..c796fd5966 100644 --- a/doc/apps/ocsp.pod +++ b/doc/apps/ocsp.pod @@ -53,6 +53,7 @@ B<openssl> B<ocsp> [B<-trusted_first>] [B<-no_alt_chains>] [B<-use_deltas>] +[B<-auth_level num>] [B<-verify_depth num>] [B<-verify_email email>] [B<-verify_hostname hostname>] @@ -197,11 +198,11 @@ B<-explicit_policy>, B<-extended_crl>, B<-ignore_critical>, B<-inhibit_any>, B<-inhibit_map>, B<-no_alt_chains>, B<-partial_chain>, B<-policy>, B<-policy_check>, B<-policy_print>, B<-purpose>, B<-suiteB_128>, B<-suiteB_128_only>, B<-suiteB_192>, B<-trusted_first>, B<-use_deltas>, -B<-verify_depth>, B<-verify_email>, B<-verify_hostname>, B<-verify_ip>, -B<-verify_name>, B<-x509_strict> +B<-auth_level>, B<-verify_depth>, B<-verify_email>, B<-verify_hostname>, +B<-verify_ip>, B<-verify_name>, B<-x509_strict> Set different certificate verification options. -See L<B<verify>|verify(1)> manual page for details. +See L<verify(1)> manual page for details. =item B<-verify_other file> diff --git a/doc/apps/s_client.pod b/doc/apps/s_client.pod index 1873293ea8..881fbcfefe 100644 --- a/doc/apps/s_client.pod +++ b/doc/apps/s_client.pod @@ -45,6 +45,7 @@ B<openssl> B<s_client> [B<-trusted_first>] [B<-no_alt_chains>] [B<-use_deltas>] +[B<-auth_level num>] [B<-verify_depth num>] [B<-verify_email email>] [B<-verify_hostname hostname>] @@ -229,8 +230,8 @@ B<-explicit_policy>, B<-extended_crl>, B<-ignore_critical>, B<-inhibit_any>, B<-inhibit_map>, B<-no_alt_chains>, B<-partial_chain>, B<-policy>, B<-policy_check>, B<-policy_print>, B<-purpose>, B<-suiteB_128>, B<-suiteB_128_only>, B<-suiteB_192>, B<-trusted_first>, B<-use_deltas>, -B<-verify_depth>, B<-verify_email>, B<-verify_hostname>, B<-verify_ip>, -B<-verify_name>, B<-x509_strict> +B<-auth_level>, B<-verify_depth>, B<-verify_email>, B<-verify_hostname>, +B<-verify_ip>, B<-verify_name>, B<-x509_strict> Set various certificate chain validation options. See the L<verify(1)> manual page for details. diff --git a/doc/apps/s_server.pod b/doc/apps/s_server.pod index 25e544468a..08554f4530 100644 --- a/doc/apps/s_server.pod +++ b/doc/apps/s_server.pod @@ -55,6 +55,7 @@ B<openssl> B<s_server> [B<-trusted_first>] [B<-no_alt_chains>] [B<-use_deltas>] +[B<-auth_level num>] [B<-verify_depth num>] [B<-verify_return_error>] [B<-verify_email email>] @@ -234,8 +235,8 @@ B<-explicit_policy>, B<-extended_crl>, B<-ignore_critical>, B<-inhibit_any>, B<-inhibit_map>, B<-no_alt_chains>, B<-partial_chain>, B<-policy>, B<-policy_check>, B<-policy_print>, B<-purpose>, B<-suiteB_128>, B<-suiteB_128_only>, B<-suiteB_192>, B<-trusted_first>, B<-use_deltas>, -B<-verify_depth>, B<-verify_email>, B<-verify_hostname>, B<-verify_ip>, -B<-verify_name>, B<-x509_strict> +B<-auth_level>, B<-verify_depth>, B<-verify_email>, B<-verify_hostname>, +B<-verify_ip>, B<-verify_name>, B<-x509_strict> Set different peer certificate verification options. See the L<verify(1)> manual page for details. diff --git a/doc/apps/smime.pod b/doc/apps/smime.pod index 418d8faa2d..e6323ad0b0 100644 --- a/doc/apps/smime.pod +++ b/doc/apps/smime.pod @@ -40,6 +40,7 @@ B<openssl> B<smime> [B<-trusted_first>] [B<-no_alt_chains>] [B<-use_deltas>] +[B<-auth_level num>] [B<-verify_depth num>] [B<-verify_email email>] [B<-verify_hostname hostname>] @@ -307,8 +308,8 @@ B<-explicit_policy>, B<-extended_crl>, B<-ignore_critical>, B<-inhibit_any>, B<-inhibit_map>, B<-no_alt_chains>, B<-partial_chain>, B<-policy>, B<-policy_check>, B<-policy_print>, B<-purpose>, B<-suiteB_128>, B<-suiteB_128_only>, B<-suiteB_192>, B<-trusted_first>, B<-use_deltas>, -B<-verify_depth>, B<-verify_email>, B<-verify_hostname>, B<-verify_ip>, -B<-verify_name>, B<-x509_strict> +B<-auth_level>, B<-verify_depth>, B<-verify_email>, B<-verify_hostname>, +B<-verify_ip>, B<-verify_name>, B<-x509_strict> Set various options of certificate chain verification. See L<verify(1)> manual page for details. diff --git a/doc/apps/ts.pod b/doc/apps/ts.pod index 93ea9e059a..e64e5fcf34 100644 --- a/doc/apps/ts.pod +++ b/doc/apps/ts.pod @@ -73,6 +73,7 @@ I<verify options:> [-suiteB_192] [-trusted_first] [-use_deltas] +[-auth_level num] [-verify_depth num] [-verify_email email] [-verify_hostname hostname] @@ -371,17 +372,15 @@ all intermediate CA certificates unless the response includes them. =item I<verify options> -The options [-attime timestamp], [-check_ss_sig], [-crl_check], -[-crl_check_all], [-explicit_policy], [-extended_crl], -[-ignore_critical], [-inhibit_any], [-inhibit_map], -[-issuer_checks], [-no_alt_chains], [-no_check_time], -[-partial_chain], [-policy arg], [-policy_check], -[-policy_print], [-purpose purpose], [-suiteB_128], -[-suiteB_128_only], [-suiteB_192], [-trusted_first], -[-use_deltas], [-verify_depth num], [-verify_email email], -[-verify_hostname hostname], [-verify_ip ip], [-verify_name name], -and [-x509_strict] can be used to control timestamp verification. -See L<verify(1)>. +The options B<-attime timestamp>, B<-check_ss_sig>, B<-crl_check>, +B<-crl_check_all>, B<-explicit_policy>, B<-extended_crl>, B<-ignore_critical>, +B<-inhibit_any>, B<-inhibit_map>, B<-issuer_checks>, B<-no_alt_chains>, +B<-no_check_time>, B<-partial_chain>, B<-policy>, B<-policy_check>, +B<-policy_print>, B<-purpose>, B<-suiteB_128>, B<-suiteB_128_only>, +B<-suiteB_192>, B<-trusted_first>, B<-use_deltas>, B<-auth_level>, +B<-verify_depth>, B<-verify_email>, B<-verify_hostname>, B<-verify_ip>, +B<-verify_name>, and B<-x509_strict> can be used to control timestamp +verification. See L<verify(1)>. =back diff --git a/doc/apps/verify.pod b/doc/apps/verify.pod index ecde35fe8a..96d6be4a4d 100644 --- a/doc/apps/verify.pod +++ b/doc/apps/verify.pod @@ -38,6 +38,7 @@ B<openssl> B<verify> [B<-trusted file>] [B<-use_deltas>] [B<-verbose>] +[B<-auth_level level>] [B<-verify_depth num>] [B<-verify_email email>] [B<-verify_hostname hostname>] @@ -227,9 +228,30 @@ Enable support for delta CRLs. Print extra information about the operations being performed. +=item B<-auth_level level> + +Set the certificate chain authentication security level to B<level>. +The authentication security level determines the acceptable signature and +public key strength when verifying certificate chains. +For a certificate chain to validate, the public keys of all the certificates +must meet the specified security B<level>. +The signature algorithm security level is enforced for all the certificates in +the chain except for the chain's I<trust anchor>, which is either directly +trusted or validated by means other than its signature. +See L<SSL_CTX_set_security_level(3)> for the definitions of the available +levels. +The default security level is -1, or "not set". +At security level 0 or lower all algorithms are acceptable. +Security level 1 requires at least 80-bit-equivalent security and is broadly +interoperable, though it will, for example, reject MD5 signatures or RSA keys +shorter than 1024 bits. + =item B<-verify_depth num> -Limit the maximum depth of the certificate chain to B<num> certificates. +Limit the certificate chain to B<num> intermediate CA certificates. +A maximal depth chain can have up to B<num+2> certificates, since neither the +end-entity certificate nor the trust-anchor certificate count against the +B<-verify_depth> limit. =item B<-verify_email email> diff --git a/doc/crypto/X509_VERIFY_PARAM_set_flags.pod b/doc/crypto/X509_VERIFY_PARAM_set_flags.pod index 6fb33edd91..04f521506f 100644 --- a/doc/crypto/X509_VERIFY_PARAM_set_flags.pod +++ b/doc/crypto/X509_VERIFY_PARAM_set_flags.pod @@ -2,15 +2,16 @@ =head1 NAME -X509_VERIFY_PARAM_set_flags, X509_VERIFY_PARAM_clear_flags, X509_VERIFY_PARAM_get_flags, X509_VERIFY_PARAM_set_purpose, X509_VERIFY_PARAM_set_trust, X509_VERIFY_PARAM_set_depth, X509_VERIFY_PARAM_get_depth, X509_VERIFY_PARAM_set_time, X509_VERIFY_PARAM_add0_policy, X509_VERIFY_PARAM_set1_policies, X509_VERIFY_PARAM_set1_host, X509_VERIFY_PARAM_add1_host, X509_VERIFY_PARAM_set_hostflags, X509_VERIFY_PARAM_get0_peername, X509_VERIFY_PARAM_set1_email, X509_VERIFY_PARAM_set1_ip, X509_VERIFY_PARAM_set1_ip_asc - X509 verification parameters +X509_VERIFY_PARAM_set_flags, X509_VERIFY_PARAM_clear_flags, X509_VERIFY_PARAM_get_flags, X509_VERIFY_PARAM_set_purpose, X509_VERIFY_PARAM_set_trust, X509_VERIFY_PARAM_set_depth, X509_VERIFY_PARAM_get_depth, X509_VERIFY_PARAM_set_auth_level, X509_VERIFY_PARAM_get_auth_level, X509_VERIFY_PARAM_set_time, X509_VERIFY_PARAM_add0_policy, X509_VERIFY_PARAM_set1_policies, X509_VERIFY_PARAM_set1_host, X509_VERIFY_PARAM_add1_host, X509_VERIFY_PARAM_set_hostflags, X509_VERIFY_PARAM_get0_peername, X509_VERIFY_PARAM_set1_email, X509_VERIFY_PARAM_set1_ip, X509_VERIFY_PARAM_set1_ip_asc - X509 verification parameters =head1 SYNOPSIS #include <openssl/x509_vfy.h> - int X509_VERIFY_PARAM_set_flags(X509_VERIFY_PARAM *param, unsigned long flags); + int X509_VERIFY_PARAM_set_flags(X509_VERIFY_PARAM *param, + unsigned long flags); int X509_VERIFY_PARAM_clear_flags(X509_VERIFY_PARAM *param, - unsigned long flags); + unsigned long flags); unsigned long X509_VERIFY_PARAM_get_flags(X509_VERIFY_PARAM *param); int X509_VERIFY_PARAM_set_purpose(X509_VERIFY_PARAM *param, int purpose); @@ -19,13 +20,17 @@ X509_VERIFY_PARAM_set_flags, X509_VERIFY_PARAM_clear_flags, X509_VERIFY_PARAM_ge void X509_VERIFY_PARAM_set_time(X509_VERIFY_PARAM *param, time_t t); int X509_VERIFY_PARAM_add0_policy(X509_VERIFY_PARAM *param, - ASN1_OBJECT *policy); + ASN1_OBJECT *policy); int X509_VERIFY_PARAM_set1_policies(X509_VERIFY_PARAM *param, STACK_OF(ASN1_OBJECT) *policies); void X509_VERIFY_PARAM_set_depth(X509_VERIFY_PARAM *param, int depth); int X509_VERIFY_PARAM_get_depth(const X509_VERIFY_PARAM *param); + void X509_VERIFY_PARAM_set_auth_level(X509_VERIFY_PARAM *param, + int auth_level); + int X509_VERIFY_PARAM_get_auth_level(const X509_VERIFY_PARAM *param); + int X509_VERIFY_PARAM_set1_host(X509_VERIFY_PARAM *param, const char *name, size_t namelen); |