/* SPDX-License-Identifier: LGPL-2.1-or-later */ #include #if HAVE_GCRYPT #include #endif #include #include #include "alloc-util.h" #include "resolved-dns-dnssec.h" #include "resolved-dns-rr.h" #include "string-util.h" #include "hexdecoct.h" #if HAVE_GCRYPT static void test_dnssec_verify_dns_key(void) { static const uint8_t ds1_fprint[] = { 0x46, 0x8B, 0xC8, 0xDD, 0xC7, 0xE8, 0x27, 0x03, 0x40, 0xBB, 0x8A, 0x1F, 0x3B, 0x2E, 0x45, 0x9D, 0x80, 0x67, 0x14, 0x01, }; static const uint8_t ds2_fprint[] = { 0x8A, 0xEE, 0x80, 0x47, 0x05, 0x5F, 0x83, 0xD1, 0x48, 0xBA, 0x8F, 0xF6, 0xDD, 0xA7, 0x60, 0xCE, 0x94, 0xF7, 0xC7, 0x5E, 0x52, 0x4C, 0xF2, 0xE9, 0x50, 0xB9, 0x2E, 0xCB, 0xEF, 0x96, 0xB9, 0x98, }; static const uint8_t dnskey_blob[] = { 0x03, 0x01, 0x00, 0x01, 0xa8, 0x12, 0xda, 0x4f, 0xd2, 0x7d, 0x54, 0x14, 0x0e, 0xcc, 0x5b, 0x5e, 0x45, 0x9c, 0x96, 0x98, 0xc0, 0xc0, 0x85, 0x81, 0xb1, 0x47, 0x8c, 0x7d, 0xe8, 0x39, 0x50, 0xcc, 0xc5, 0xd0, 0xf2, 0x00, 0x81, 0x67, 0x79, 0xf6, 0xcc, 0x9d, 0xad, 0x6c, 0xbb, 0x7b, 0x6f, 0x48, 0x97, 0x15, 0x1c, 0xfd, 0x0b, 0xfe, 0xd3, 0xd7, 0x7d, 0x9f, 0x81, 0x26, 0xd3, 0xc5, 0x65, 0x49, 0xcf, 0x46, 0x62, 0xb0, 0x55, 0x6e, 0x47, 0xc7, 0x30, 0xef, 0x51, 0xfb, 0x3e, 0xc6, 0xef, 0xde, 0x27, 0x3f, 0xfa, 0x57, 0x2d, 0xa7, 0x1d, 0x80, 0x46, 0x9a, 0x5f, 0x14, 0xb3, 0xb0, 0x2c, 0xbe, 0x72, 0xca, 0xdf, 0xb2, 0xff, 0x36, 0x5b, 0x4f, 0xec, 0x58, 0x8e, 0x8d, 0x01, 0xe9, 0xa9, 0xdf, 0xb5, 0x60, 0xad, 0x52, 0x4d, 0xfc, 0xa9, 0x3e, 0x8d, 0x35, 0x95, 0xb3, 0x4e, 0x0f, 0xca, 0x45, 0x1b, 0xf7, 0xef, 0x3a, 0x88, 0x25, 0x08, 0xc7, 0x4e, 0x06, 0xc1, 0x62, 0x1a, 0xce, 0xd8, 0x77, 0xbd, 0x02, 0x65, 0xf8, 0x49, 0xfb, 0xce, 0xf6, 0xa8, 0x09, 0xfc, 0xde, 0xb2, 0x09, 0x9d, 0x39, 0xf8, 0x63, 0x9c, 0x32, 0x42, 0x7c, 0xa0, 0x30, 0x86, 0x72, 0x7a, 0x4a, 0xc6, 0xd4, 0xb3, 0x2d, 0x24, 0xef, 0x96, 0x3f, 0xc2, 0xda, 0xd3, 0xf2, 0x15, 0x6f, 0xda, 0x65, 0x4b, 0x81, 0x28, 0x68, 0xf4, 0xfe, 0x3e, 0x71, 0x4f, 0x50, 0x96, 0x72, 0x58, 0xa1, 0x89, 0xdd, 0x01, 0x61, 0x39, 0x39, 0xc6, 0x76, 0xa4, 0xda, 0x02, 0x70, 0x3d, 0xc0, 0xdc, 0x8d, 0x70, 0x72, 0x04, 0x90, 0x79, 0xd4, 0xec, 0x65, 0xcf, 0x49, 0x35, 0x25, 0x3a, 0x14, 0x1a, 0x45, 0x20, 0xeb, 0x31, 0xaf, 0x92, 0xba, 0x20, 0xd3, 0xcd, 0xa7, 0x13, 0x44, 0xdc, 0xcf, 0xf0, 0x27, 0x34, 0xb9, 0xe7, 0x24, 0x6f, 0x73, 0xe7, 0xea, 0x77, 0x03, }; _cleanup_(dns_resource_record_unrefp) DnsResourceRecord *dnskey = NULL, *ds1 = NULL, *ds2 = NULL; /* The two DS RRs in effect for nasa.gov on 2015-12-01. */ ds1 = dns_resource_record_new_full(DNS_CLASS_IN, DNS_TYPE_DS, "nasa.gov"); assert_se(ds1); ds1->ds.key_tag = 47857; ds1->ds.algorithm = DNSSEC_ALGORITHM_RSASHA256; ds1->ds.digest_type = DNSSEC_DIGEST_SHA1; ds1->ds.digest_size = sizeof(ds1_fprint); ds1->ds.digest = memdup(ds1_fprint, ds1->ds.digest_size); assert_se(ds1->ds.digest); log_info("DS1: %s", strna(dns_resource_record_to_string(ds1))); ds2 = dns_resource_record_new_full(DNS_CLASS_IN, DNS_TYPE_DS, "NASA.GOV"); assert_se(ds2); ds2->ds.key_tag = 47857; ds2->ds.algorithm = DNSSEC_ALGORITHM_RSASHA256; ds2->ds.digest_type = DNSSEC_DIGEST_SHA256; ds2->ds.digest_size = sizeof(ds2_fprint); ds2->ds.digest = memdup(ds2_fprint, ds2->ds.digest_size); assert_se(ds2->ds.digest); log_info("DS2: %s", strna(dns_resource_record_to_string(ds2))); dnskey = dns_resource_record_new_full(DNS_CLASS_IN, DNS_TYPE_DNSKEY, "nasa.GOV"); assert_se(dnskey); dnskey->dnskey.flags = 257; dnskey->dnskey.protocol = 3; dnskey->dnskey.algorithm = DNSSEC_ALGORITHM_RSASHA256; dnskey->dnskey.key_size = sizeof(dnskey_blob); dnskey->dnskey.key = memdup(dnskey_blob, sizeof(dnskey_blob)); assert_se(dnskey->dnskey.key); log_info("DNSKEY: %s", strna(dns_resource_record_to_string(dnskey))); log_info("DNSKEY keytag: %u", dnssec_keytag(dnskey, false)); assert_se(dnssec_verify_dnskey_by_ds(dnskey, ds1, false) > 0); assert_se(dnssec_verify_dnskey_by_ds(dnskey, ds2, false) > 0); } static void test_dnssec_verify_rfc8080_ed25519_example1(void) { static const uint8_t dnskey_blob[] = { 0x97, 0x4d, 0x96, 0xa2, 0x2d, 0x22, 0x4b, 0xc0, 0x1a, 0xdb, 0x91, 0x50, 0x91, 0x47, 0x7d, 0x44, 0xcc, 0xd9, 0x1c, 0x9a, 0x41, 0xa1, 0x14, 0x30, 0x01, 0x01, 0x17, 0xd5, 0x2c, 0x59, 0x24, 0xe }; static const uint8_t ds_fprint[] = { 0xdd, 0xa6, 0xb9, 0x69, 0xbd, 0xfb, 0x79, 0xf7, 0x1e, 0xe7, 0xb7, 0xfb, 0xdf, 0xb7, 0xdc, 0xd7, 0xad, 0xbb, 0xd3, 0x5d, 0xdf, 0x79, 0xed, 0x3b, 0x6d, 0xd7, 0xf6, 0xe3, 0x56, 0xdd, 0xd7, 0x47, 0xf7, 0x6f, 0x5f, 0x7a, 0xe1, 0xa6, 0xf9, 0xe5, 0xce, 0xfc, 0x7b, 0xbf, 0x5a, 0xdf, 0x4e, 0x1b }; static const uint8_t signature_blob[] = { 0xa0, 0xbf, 0x64, 0xac, 0x9b, 0xa7, 0xef, 0x17, 0xc1, 0x38, 0x85, 0x9c, 0x18, 0x78, 0xbb, 0x99, 0xa8, 0x39, 0xfe, 0x17, 0x59, 0xac, 0xa5, 0xb0, 0xd7, 0x98, 0xcf, 0x1a, 0xb1, 0xe9, 0x8d, 0x07, 0x91, 0x02, 0xf4, 0xdd, 0xb3, 0x36, 0x8f, 0x0f, 0xe4, 0x0b, 0xb3, 0x77, 0xf1, 0xf0, 0x0e, 0x0c, 0xdd, 0xed, 0xb7, 0x99, 0x16, 0x7d, 0x56, 0xb6, 0xe9, 0x32, 0x78, 0x30, 0x72, 0xba, 0x8d, 0x02 }; _cleanup_(dns_resource_record_unrefp) DnsResourceRecord *dnskey = NULL, *ds = NULL, *mx = NULL, *rrsig = NULL; _cleanup_(dns_answer_unrefp) DnsAnswer *answer = NULL; DnssecResult result; dnskey = dns_resource_record_new_full(DNS_CLASS_IN, DNS_TYPE_DNSKEY, "example.com."); assert_se(dnskey); dnskey->dnskey.flags = 257; dnskey->dnskey.protocol = 3; dnskey->dnskey.algorithm = DNSSEC_ALGORITHM_ED25519; dnskey->dnskey.key_size = sizeof(dnskey_blob); dnskey->dnskey.key = memdup(dnskey_blob, sizeof(dnskey_blob)); assert_se(dnskey->dnskey.key); log_info("DNSKEY: %s", strna(dns_resource_record_to_string(dnskey))); ds = dns_resource_record_new_full(DNS_CLASS_IN, DNS_TYPE_DS, "example.com."); assert_se(ds); ds->ds.key_tag = 3613; ds->ds.algorithm = DNSSEC_ALGORITHM_ED25519; ds->ds.digest_type = DNSSEC_DIGEST_SHA256; ds->ds.digest_size = sizeof(ds_fprint); ds->ds.digest = memdup(ds_fprint, ds->ds.digest_size); assert_se(ds->ds.digest); log_info("DS: %s", strna(dns_resource_record_to_string(ds))); mx = dns_resource_record_new_full(DNS_CLASS_IN, DNS_TYPE_MX, "example.com."); assert_se(mx); mx->mx.priority = 10; mx->mx.exchange = strdup("mail.example.com."); assert_se(mx->mx.exchange); log_info("MX: %s", strna(dns_resource_record_to_string(mx))); rrsig = dns_resource_record_new_full(DNS_CLASS_IN, DNS_TYPE_RRSIG, "example.com."); assert_se(rrsig); rrsig->rrsig.type_covered = DNS_TYPE_MX; rrsig->rrsig.algorithm = DNSSEC_ALGORITHM_ED25519; rrsig->rrsig.labels = 2; rrsig->rrsig.original_ttl = 3600; rrsig->rrsig.expiration = 1440021600; rrsig->rrsig.inception = 1438207200; rrsig->rrsig.key_tag = 3613; rrsig->rrsig.signer = strdup("example.com."); assert_se(rrsig->rrsig.signer); rrsig->rrsig.signature_size = sizeof(signature_blob); rrsig->rrsig.signature = memdup(signature_blob, rrsig->rrsig.signature_size); assert_se(rrsig->rrsig.signature); log_info("RRSIG: %s", strna(dns_resource_record_to_string(rrsig))); assert_se(dnssec_key_match_rrsig(mx->key, rrsig) > 0); assert_se(dnssec_rrsig_match_dnskey(rrsig, dnskey, false) > 0); answer = dns_answer_new(1); assert_se(answer); assert_se(dns_answer_add(answer, mx, 0, DNS_ANSWER_AUTHENTICATED) >= 0); assert_se(dnssec_verify_rrset(answer, mx->key, rrsig, dnskey, rrsig->rrsig.inception * USEC_PER_SEC, &result) >= 0); #if GCRYPT_VERSION_NUMBER >= 0x010600 assert_se(result == DNSSEC_VALIDATED); #else assert_se(result == DNSSEC_UNSUPPORTED_ALGORITHM); #endif } static void test_dnssec_verify_rfc8080_ed25519_example2(void) { static const uint8_t dnskey_blob[] = { 0xcc, 0xf9, 0xd9, 0xfd, 0x0c, 0x04, 0x7b, 0xb4, 0xbc, 0x0b, 0x94, 0x8f, 0xcf, 0x63, 0x9f, 0x4b, 0x94, 0x51, 0xe3, 0x40, 0x13, 0x93, 0x6f, 0xeb, 0x62, 0x71, 0x3d, 0xc4, 0x72, 0x4, 0x8a, 0x3b }; static const uint8_t ds_fprint[] = { 0xe3, 0x4d, 0x7b, 0xf3, 0x56, 0xfd, 0xdf, 0x87, 0xb7, 0xf7, 0x67, 0x5e, 0xe3, 0xdd, 0x9e, 0x73, 0xbe, 0xda, 0x7b, 0x67, 0xb5, 0xe5, 0xde, 0xf4, 0x7f, 0xae, 0x7b, 0xe5, 0xad, 0x5c, 0xd1, 0xb7, 0x39, 0xf5, 0xce, 0x76, 0xef, 0x97, 0x34, 0xe1, 0xe6, 0xde, 0xf3, 0x47, 0x3a, 0xeb, 0x5e, 0x1c }; static const uint8_t signature_blob[] = { 0xcd, 0x74, 0x34, 0x6e, 0x46, 0x20, 0x41, 0x31, 0x05, 0xc9, 0xf2, 0xf2, 0x8b, 0xd4, 0x28, 0x89, 0x8e, 0x83, 0xf1, 0x97, 0x58, 0xa3, 0x8c, 0x32, 0x52, 0x15, 0x62, 0xa1, 0x86, 0x57, 0x15, 0xd4, 0xf8, 0xd7, 0x44, 0x0f, 0x44, 0x84, 0xd0, 0x4a, 0xa2, 0x52, 0x9f, 0x34, 0x28, 0x4a, 0x6e, 0x69, 0xa0, 0x9e, 0xe0, 0x0f, 0xb0, 0x10, 0x47, 0x43, 0xbb, 0x2a, 0xe2, 0x39, 0x93, 0x6a, 0x5c, 0x06 }; _cleanup_(dns_resource_record_unrefp) DnsResourceRecord *dnskey = NULL, *ds = NULL, *mx = NULL, *rrsig = NULL; _cleanup_(dns_answer_unrefp) DnsAnswer *answer = NULL; DnssecResult result; dnskey = dns_resource_record_new_full(DNS_CLASS_IN, DNS_TYPE_DNSKEY, "example.com."); assert_se(dnskey); dnskey->dnskey.flags = 257; dnskey->dnskey.protocol = 3; dnskey->dnskey.algorithm = DNSSEC_ALGORITHM_ED25519; dnskey->dnskey.key_size = sizeof(dnskey_blob); dnskey->dnskey.key = memdup(dnskey_blob, sizeof(dnskey_blob)); assert_se(dnskey->dnskey.key); log_info("DNSKEY: %s", strna(dns_resource_record_to_string(dnskey))); ds = dns_resource_record_new_full(DNS_CLASS_IN, DNS_TYPE_DS, "example.com."); assert_se(ds); ds->ds.key_tag = 35217; ds->ds.algorithm = DNSSEC_ALGORITHM_ED25519; ds->ds.digest_type = DNSSEC_DIGEST_SHA256; ds->ds.digest_size = sizeof(ds_fprint); ds->ds.digest = memdup(ds_fprint, ds->ds.digest_size); assert_se(ds->ds.digest); log_info("DS: %s", strna(dns_resource_record_to_string(ds))); mx = dns_resource_record_new_full(DNS_CLASS_IN, DNS_TYPE_MX, "example.com."); assert_se(mx); mx->mx.priority = 10; mx->mx.exchange = strdup("mail.example.com."); assert_se(mx->mx.exchange); log_info("MX: %s", strna(dns_resource_record_to_string(mx))); rrsig = dns_resource_record_new_full(DNS_CLASS_IN, DNS_TYPE_RRSIG, "example.com."); assert_se(rrsig); rrsig->rrsig.type_covered = DNS_TYPE_MX; rrsig->rrsig.algorithm = DNSSEC_ALGORITHM_ED25519; rrsig->rrsig.labels = 2; rrsig->rrsig.original_ttl = 3600; rrsig->rrsig.expiration = 1440021600; rrsig->rrsig.inception = 1438207200; rrsig->rrsig.key_tag = 35217; rrsig->rrsig.signer = strdup("example.com."); assert_se(rrsig->rrsig.signer); rrsig->rrsig.signature_size = sizeof(signature_blob); rrsig->rrsig.signature = memdup(signature_blob, rrsig->rrsig.signature_size); assert_se(rrsig->rrsig.signature); log_info("RRSIG: %s", strna(dns_resource_record_to_string(rrsig))); assert_se(dnssec_key_match_rrsig(mx->key, rrsig) > 0); assert_se(dnssec_rrsig_match_dnskey(rrsig, dnskey, false) > 0); answer = dns_answer_new(1); assert_se(answer); assert_se(dns_answer_add(answer, mx, 0, DNS_ANSWER_AUTHENTICATED) >= 0); assert_se(dnssec_verify_rrset(answer, mx->key, rrsig, dnskey, rrsig->rrsig.inception * USEC_PER_SEC, &result) >= 0); #if GCRYPT_VERSION_NUMBER >= 0x010600 assert_se(result == DNSSEC_VALIDATED); #else assert_se(result == DNSSEC_UNSUPPORTED_ALGORITHM); #endif } static void test_dnssec_verify_rrset(void) { static const uint8_t signature_blob[] = { 0x7f, 0x79, 0xdd, 0x5e, 0x89, 0x79, 0x18, 0xd0, 0x34, 0x86, 0x8c, 0x72, 0x77, 0x75, 0x48, 0x4d, 0xc3, 0x7d, 0x38, 0x04, 0xab, 0xcd, 0x9e, 0x4c, 0x82, 0xb0, 0x92, 0xca, 0xe9, 0x66, 0xe9, 0x6e, 0x47, 0xc7, 0x68, 0x8c, 0x94, 0xf6, 0x69, 0xcb, 0x75, 0x94, 0xe6, 0x30, 0xa6, 0xfb, 0x68, 0x64, 0x96, 0x1a, 0x84, 0xe1, 0xdc, 0x16, 0x4c, 0x83, 0x6c, 0x44, 0xf2, 0x74, 0x4d, 0x74, 0x79, 0x8f, 0xf3, 0xf4, 0x63, 0x0d, 0xef, 0x5a, 0xe7, 0xe2, 0xfd, 0xf2, 0x2b, 0x38, 0x7c, 0x28, 0x96, 0x9d, 0xb6, 0xcd, 0x5c, 0x3b, 0x57, 0xe2, 0x24, 0x78, 0x65, 0xd0, 0x9e, 0x77, 0x83, 0x09, 0x6c, 0xff, 0x3d, 0x52, 0x3f, 0x6e, 0xd1, 0xed, 0x2e, 0xf9, 0xee, 0x8e, 0xa6, 0xbe, 0x9a, 0xa8, 0x87, 0x76, 0xd8, 0x77, 0xcc, 0x96, 0xa0, 0x98, 0xa1, 0xd1, 0x68, 0x09, 0x43, 0xcf, 0x56, 0xd9, 0xd1, 0x66, }; static const uint8_t dnskey_blob[] = { 0x03, 0x01, 0x00, 0x01, 0x9b, 0x49, 0x9b, 0xc1, 0xf9, 0x9a, 0xe0, 0x4e, 0xcf, 0xcb, 0x14, 0x45, 0x2e, 0xc9, 0xf9, 0x74, 0xa7, 0x18, 0xb5, 0xf3, 0xde, 0x39, 0x49, 0xdf, 0x63, 0x33, 0x97, 0x52, 0xe0, 0x8e, 0xac, 0x50, 0x30, 0x8e, 0x09, 0xd5, 0x24, 0x3d, 0x26, 0xa4, 0x49, 0x37, 0x2b, 0xb0, 0x6b, 0x1b, 0xdf, 0xde, 0x85, 0x83, 0xcb, 0x22, 0x4e, 0x60, 0x0a, 0x91, 0x1a, 0x1f, 0xc5, 0x40, 0xb1, 0xc3, 0x15, 0xc1, 0x54, 0x77, 0x86, 0x65, 0x53, 0xec, 0x10, 0x90, 0x0c, 0x91, 0x00, 0x5e, 0x15, 0xdc, 0x08, 0x02, 0x4c, 0x8c, 0x0d, 0xc0, 0xac, 0x6e, 0xc4, 0x3e, 0x1b, 0x80, 0x19, 0xe4, 0xf7, 0x5f, 0x77, 0x51, 0x06, 0x87, 0x61, 0xde, 0xa2, 0x18, 0x0f, 0x40, 0x8b, 0x79, 0x72, 0xfa, 0x8d, 0x1a, 0x44, 0x47, 0x0d, 0x8e, 0x3a, 0x2d, 0xc7, 0x39, 0xbf, 0x56, 0x28, 0x97, 0xd9, 0x20, 0x4f, 0x00, 0x51, 0x3b, }; _cleanup_(dns_resource_record_unrefp) DnsResourceRecord *a = NULL, *rrsig = NULL, *dnskey = NULL; _cleanup_(dns_answer_unrefp) DnsAnswer *answer = NULL; DnssecResult result; a = dns_resource_record_new_full(DNS_CLASS_IN, DNS_TYPE_A, "nAsA.gov"); assert_se(a); a->a.in_addr.s_addr = inet_addr("52.0.14.116"); log_info("A: %s", strna(dns_resource_record_to_string(a))); rrsig = dns_resource_record_new_full(DNS_CLASS_IN, DNS_TYPE_RRSIG, "NaSa.GOV."); assert_se(rrsig); rrsig->rrsig.type_covered = DNS_TYPE_A; rrsig->rrsig.algorithm = DNSSEC_ALGORITHM_RSASHA256; rrsig->rrsig.labels = 2; rrsig->rrsig.original_ttl = 600; rrsig->rrsig.expiration = 0x5683135c; rrsig->rrsig.inception = 0x565b7da8; rrsig->rrsig.key_tag = 63876; rrsig->rrsig.signer = strdup("Nasa.Gov."); assert_se(rrsig->rrsig.signer); rrsig->rrsig.signature_size = sizeof(signature_blob); rrsig->rrsig.signature = memdup(signature_blob, rrsig->rrsig.signature_size); assert_se(rrsig->rrsig.signature); log_info("RRSIG: %s", strna(dns_resource_record_to_string(rrsig))); dnskey = dns_resource_record_new_full(DNS_CLASS_IN, DNS_TYPE_DNSKEY, "nASA.gOV"); assert_se(dnskey); dnskey->dnskey.flags = 256; dnskey->dnskey.protocol = 3; dnskey->dnskey.algorithm = DNSSEC_ALGORITHM_RSASHA256; dnskey->dnskey.key_size = sizeof(dnskey_blob); dnskey->dnskey.key = memdup(dnskey_blob, sizeof(dnskey_blob)); assert_se(dnskey->dnskey.key); log_info("DNSKEY: %s", strna(dns_resource_record_to_string(dnskey))); log_info("DNSKEY keytag: %u", dnssec_keytag(dnskey, false)); assert_se(dnssec_key_match_rrsig(a->key, rrsig) > 0); assert_se(dnssec_rrsig_match_dnskey(rrsig, dnskey, false) > 0); answer = dns_answer_new(1); assert_se(answer); assert_se(dns_answer_add(answer, a, 0, DNS_ANSWER_AUTHENTICATED) >= 0); /* Validate the RR as it if was 2015-12-2 today */ assert_se(dnssec_verify_rrset(answer, a->key, rrsig, dnskey, 1449092754*USEC_PER_SEC, &result) >= 0); assert_se(result == DNSSEC_VALIDATED); } static void test_dnssec_verify_rrset2(void) { static const uint8_t signature_blob[] = { 0x48, 0x45, 0xc8, 0x8b, 0xc0, 0x14, 0x92, 0xf5, 0x15, 0xc6, 0x84, 0x9d, 0x2f, 0xe3, 0x32, 0x11, 0x7d, 0xf1, 0xe6, 0x87, 0xb9, 0x42, 0xd3, 0x8b, 0x9e, 0xaf, 0x92, 0x31, 0x0a, 0x53, 0xad, 0x8b, 0xa7, 0x5c, 0x83, 0x39, 0x8c, 0x28, 0xac, 0xce, 0x6e, 0x9c, 0x18, 0xe3, 0x31, 0x16, 0x6e, 0xca, 0x38, 0x31, 0xaf, 0xd9, 0x94, 0xf1, 0x84, 0xb1, 0xdf, 0x5a, 0xc2, 0x73, 0x22, 0xf6, 0xcb, 0xa2, 0xe7, 0x8c, 0x77, 0x0c, 0x74, 0x2f, 0xc2, 0x13, 0xb0, 0x93, 0x51, 0xa9, 0x4f, 0xae, 0x0a, 0xda, 0x45, 0xcc, 0xfd, 0x43, 0x99, 0x36, 0x9a, 0x0d, 0x21, 0xe0, 0xeb, 0x30, 0x65, 0xd4, 0xa0, 0x27, 0x37, 0x3b, 0xe4, 0xc1, 0xc5, 0xa1, 0x2a, 0xd1, 0x76, 0xc4, 0x7e, 0x64, 0x0e, 0x5a, 0xa6, 0x50, 0x24, 0xd5, 0x2c, 0xcc, 0x6d, 0xe5, 0x37, 0xea, 0xbd, 0x09, 0x34, 0xed, 0x24, 0x06, 0xa1, 0x22, }; static const uint8_t dnskey_blob[] = { 0x03, 0x01, 0x00, 0x01, 0xc3, 0x7f, 0x1d, 0xd1, 0x1c, 0x97, 0xb1, 0x13, 0x34, 0x3a, 0x9a, 0xea, 0xee, 0xd9, 0x5a, 0x11, 0x1b, 0x17, 0xc7, 0xe3, 0xd4, 0xda, 0x20, 0xbc, 0x5d, 0xba, 0x74, 0xe3, 0x37, 0x99, 0xec, 0x25, 0xce, 0x93, 0x7f, 0xbd, 0x22, 0x73, 0x7e, 0x14, 0x71, 0xe0, 0x60, 0x07, 0xd4, 0x39, 0x8b, 0x5e, 0xe9, 0xba, 0x25, 0xe8, 0x49, 0xe9, 0x34, 0xef, 0xfe, 0x04, 0x5c, 0xa5, 0x27, 0xcd, 0xa9, 0xda, 0x70, 0x05, 0x21, 0xab, 0x15, 0x82, 0x24, 0xc3, 0x94, 0xf5, 0xd7, 0xb7, 0xc4, 0x66, 0xcb, 0x32, 0x6e, 0x60, 0x2b, 0x55, 0x59, 0x28, 0x89, 0x8a, 0x72, 0xde, 0x88, 0x56, 0x27, 0x95, 0xd9, 0xac, 0x88, 0x4f, 0x65, 0x2b, 0x68, 0xfc, 0xe6, 0x41, 0xc1, 0x1b, 0xef, 0x4e, 0xd6, 0xc2, 0x0f, 0x64, 0x88, 0x95, 0x5e, 0xdd, 0x3a, 0x02, 0x07, 0x50, 0xa9, 0xda, 0xa4, 0x49, 0x74, 0x62, 0xfe, 0xd7, }; _cleanup_(dns_resource_record_unrefp) DnsResourceRecord *nsec = NULL, *rrsig = NULL, *dnskey = NULL; _cleanup_(dns_answer_unrefp) DnsAnswer *answer = NULL; DnssecResult result; nsec = dns_resource_record_new_full(DNS_CLASS_IN, DNS_TYPE_NSEC, "nasa.gov"); assert_se(nsec); nsec->nsec.next_domain_name = strdup("3D-Printing.nasa.gov"); assert_se(nsec->nsec.next_domain_name); nsec->nsec.types = bitmap_new(); assert_se(nsec->nsec.types); assert_se(bitmap_set(nsec->nsec.types, DNS_TYPE_A) >= 0); assert_se(bitmap_set(nsec->nsec.types, DNS_TYPE_NS) >= 0); assert_se(bitmap_set(nsec->nsec.types, DNS_TYPE_SOA) >= 0); assert_se(bitmap_set(nsec->nsec.types, DNS_TYPE_MX) >= 0); assert_se(bitmap_set(nsec->nsec.types, DNS_TYPE_TXT) >= 0); assert_se(bitmap_set(nsec->nsec.types, DNS_TYPE_RRSIG) >= 0); assert_se(bitmap_set(nsec->nsec.types, DNS_TYPE_NSEC) >= 0); assert_se(bitmap_set(nsec->nsec.types, DNS_TYPE_DNSKEY) >= 0); assert_se(bitmap_set(nsec->nsec.types, 65534) >= 0); log_info("NSEC: %s", strna(dns_resource_record_to_string(nsec))); rrsig = dns_resource_record_new_full(DNS_CLASS_IN, DNS_TYPE_RRSIG, "NaSa.GOV."); assert_se(rrsig); rrsig->rrsig.type_covered = DNS_TYPE_NSEC; rrsig->rrsig.algorithm = DNSSEC_ALGORITHM_RSASHA256; rrsig->rrsig.labels = 2; rrsig->rrsig.original_ttl = 300; rrsig->rrsig.expiration = 0x5689002f; rrsig->rrsig.inception = 0x56617230; rrsig->rrsig.key_tag = 30390; rrsig->rrsig.signer = strdup("Nasa.Gov."); assert_se(rrsig->rrsig.signer); rrsig->rrsig.signature_size = sizeof(signature_blob); rrsig->rrsig.signature = memdup(signature_blob, rrsig->rrsig.signature_size); assert_se(rrsig->rrsig.signature); log_info("RRSIG: %s", strna(dns_resource_record_to_string(rrsig))); dnskey = dns_resource_record_new_full(DNS_CLASS_IN, DNS_TYPE_DNSKEY, "nASA.gOV"); assert_se(dnskey); dnskey->dnskey.flags = 256; dnskey->dnskey.protocol = 3; dnskey->dnskey.algorithm = DNSSEC_ALGORITHM_RSASHA256; dnskey->dnskey.key_size = sizeof(dnskey_blob); dnskey->dnskey.key = memdup(dnskey_blob, sizeof(dnskey_blob)); assert_se(dnskey->dnskey.key); log_info("DNSKEY: %s", strna(dns_resource_record_to_string(dnskey))); log_info("DNSKEY keytag: %u", dnssec_keytag(dnskey, false)); assert_se(dnssec_key_match_rrsig(nsec->key, rrsig) > 0); assert_se(dnssec_rrsig_match_dnskey(rrsig, dnskey, false) > 0); answer = dns_answer_new(1); assert_se(answer); assert_se(dns_answer_add(answer, nsec, 0, DNS_ANSWER_AUTHENTICATED) >= 0); /* Validate the RR as it if was 2015-12-11 today */ assert_se(dnssec_verify_rrset(answer, nsec->key, rrsig, dnskey, 1449849318*USEC_PER_SEC, &result) >= 0); assert_se(result == DNSSEC_VALIDATED); } static void test_dnssec_verify_rrset3(void) { static const uint8_t signature_blob[] = { 0x41, 0x09, 0x08, 0x67, 0x51, 0x6d, 0x02, 0xf2, 0x17, 0x1e, 0x61, 0x03, 0xc6, 0x80, 0x7a, 0x82, 0x8f, 0x6c, 0x8c, 0x4c, 0x68, 0x6f, 0x1c, 0xaa, 0x4a, 0xe0, 0x9b, 0x72, 0xdf, 0x7f, 0x15, 0xfa, 0x2b, 0xc5, 0x63, 0x6f, 0x52, 0xa2, 0x60, 0x59, 0x24, 0xb6, 0xc3, 0x43, 0x3d, 0x47, 0x38, 0xd8, 0x0c, 0xcc, 0x6c, 0x10, 0x49, 0x92, 0x97, 0x6c, 0x7d, 0x32, 0xc2, 0x62, 0x83, 0x34, 0x96, 0xdf, 0xbd, 0xf9, 0xcc, 0xcf, 0xd9, 0x4d, 0x8b, 0x8a, 0xa9, 0x3c, 0x1f, 0x89, 0xc4, 0xad, 0xd5, 0xbb, 0x74, 0xf8, 0xee, 0x60, 0x54, 0x7a, 0xec, 0x36, 0x45, 0xf2, 0xec, 0xb9, 0x73, 0x66, 0xae, 0x57, 0x2d, 0xd4, 0x91, 0x02, 0x99, 0xcd, 0xba, 0xbd, 0x6e, 0xfb, 0xa6, 0xf6, 0x34, 0xce, 0x4c, 0x44, 0x0b, 0xd2, 0x66, 0xdb, 0x4e, 0x5e, 0x00, 0x72, 0x1b, 0xe5, 0x2f, 0x24, 0xd2, 0xc8, 0x72, 0x37, 0x97, 0x2b, 0xd0, 0xcd, 0xa9, 0x6b, 0x84, 0x32, 0x56, 0x7a, 0x89, 0x6e, 0x3d, 0x8f, 0x03, 0x9a, 0x9d, 0x6d, 0xf7, 0xe5, 0x13, 0xd7, 0x4b, 0xbc, 0xe2, 0x6c, 0xd1, 0x18, 0x60, 0x0e, 0x1a, 0xe3, 0xf9, 0xc0, 0x34, 0x4b, 0x1c, 0x82, 0x17, 0x5e, 0xdf, 0x81, 0x32, 0xd7, 0x5b, 0x30, 0x1d, 0xe0, 0x29, 0x80, 0x6b, 0xb1, 0x69, 0xbf, 0x3f, 0x12, 0x56, 0xb0, 0x80, 0x91, 0x22, 0x1a, 0x31, 0xd5, 0x5d, 0x3d, 0xdd, 0x70, 0x5e, 0xcb, 0xc7, 0x2d, 0xb8, 0x3e, 0x54, 0x34, 0xd3, 0x50, 0x89, 0x77, 0x08, 0xc1, 0xf7, 0x11, 0x6e, 0x57, 0xd7, 0x09, 0x94, 0x20, 0x03, 0x38, 0xc3, 0x3a, 0xd3, 0x93, 0x8f, 0xd0, 0x65, 0xc5, 0xa1, 0xe0, 0x69, 0x2c, 0xf6, 0x0a, 0xce, 0x01, 0xb6, 0x0d, 0x95, 0xa0, 0x5d, 0x97, 0x94, 0xc3, 0xf1, 0xcd, 0x49, 0xea, 0x20, 0xd3, 0xa9, 0xa6, 0x67, 0x94, 0x64, 0x17 }; static const uint8_t dnskey_blob[] = { 0x03, 0x01, 0x00, 0x01, 0xbf, 0xdd, 0x24, 0x95, 0x21, 0x70, 0xa8, 0x5b, 0x19, 0xa6, 0x76, 0xd3, 0x5b, 0x37, 0xcf, 0x59, 0x0d, 0x3c, 0xdb, 0x0c, 0xcf, 0xd6, 0x19, 0x02, 0xc7, 0x8e, 0x56, 0x4d, 0x14, 0xb7, 0x9d, 0x71, 0xf4, 0xdd, 0x24, 0x36, 0xc8, 0x32, 0x1c, 0x63, 0xf7, 0xc0, 0xfc, 0xe3, 0x83, 0xa6, 0x22, 0x8b, 0x6a, 0x34, 0x41, 0x72, 0xaa, 0x95, 0x98, 0x06, 0xac, 0x03, 0xec, 0xc3, 0xa1, 0x6d, 0x8b, 0x1b, 0xfd, 0xa4, 0x05, 0x72, 0xe6, 0xe0, 0xb9, 0x98, 0x07, 0x54, 0x7a, 0xb2, 0x55, 0x30, 0x96, 0xa3, 0x22, 0x3b, 0xe0, 0x9d, 0x61, 0xf6, 0xdc, 0x31, 0x2b, 0xc9, 0x2c, 0x12, 0x06, 0x7f, 0x3c, 0x5d, 0x29, 0x76, 0x01, 0x62, 0xe3, 0x41, 0x41, 0x4f, 0xa6, 0x07, 0xfa, 0x2d, 0x0c, 0x64, 0x88, 0xd1, 0x56, 0x18, 0x4b, 0x2b, 0xc2, 0x19, 0x7e, 0xd0, 0x1a, 0x8c, 0x2d, 0x8d, 0x06, 0xdf, 0x4d, 0xaf, 0xd9, 0xe3, 0x31, 0x59, 0xbc, 0xc3, 0x36, 0x22, 0xe7, 0x15, 0xf9, 0xb2, 0x44, 0x8a, 0x33, 0xd7, 0x6c, 0xf1, 0xcc, 0x37, 0x05, 0x69, 0x32, 0x71, 0x76, 0xd8, 0x50, 0x06, 0xae, 0x27, 0xed, 0x3b, 0xdb, 0x1a, 0x97, 0x9b, 0xa3, 0x3e, 0x40, 0x42, 0x29, 0xaf, 0x75, 0x1c, 0xff, 0x1d, 0xaf, 0x85, 0x02, 0xb3, 0x2e, 0x99, 0x67, 0x08, 0x13, 0xd5, 0xda, 0x6d, 0x65, 0xb2, 0x36, 0x6f, 0x2f, 0x64, 0xe0, 0xfa, 0xd3, 0x81, 0x86, 0x6b, 0x41, 0x3e, 0x91, 0xaa, 0x0a, 0xd3, 0xb2, 0x92, 0xd9, 0x42, 0x36, 0x8a, 0x11, 0x0b, 0x5b, 0xb0, 0xea, 0xad, 0x76, 0xd5, 0xb4, 0x81, 0x30, 0xca, 0x5c, 0x4f, 0xd9, 0xea, 0xe7, 0x4b, 0x10, 0x0a, 0x09, 0x4b, 0x73, 0x66, 0xed, 0x8e, 0x84, 0xa2, 0x4f, 0x93, 0x7e, 0x29, 0xdc, 0x6a, 0xbd, 0x12, 0xa1, 0x3d, 0xd2, 0xd6, 0x2a, 0x67, 0x99, 0x4d, 0xf3, 0x43 }; _cleanup_(dns_resource_record_unrefp) DnsResourceRecord *mx1 = NULL, *mx2 = NULL, *mx3 = NULL, *mx4 = NULL, *rrsig = NULL, *dnskey = NULL; _cleanup_(dns_answer_unrefp) DnsAnswer *answer = NULL; DnssecResult result; mx1 = dns_resource_record_new_full(DNS_CLASS_IN, DNS_TYPE_MX, "kodapan.se"); assert_se(mx1); mx1->mx.priority = 1; mx1->mx.exchange = strdup("ASPMX.L.GOOGLE.COM"); assert_se(mx1->mx.exchange); log_info("MX: %s", strna(dns_resource_record_to_string(mx1))); mx2 = dns_resource_record_new_full(DNS_CLASS_IN, DNS_TYPE_MX, "kodapan.se"); assert_se(mx2); mx2->mx.priority = 5; mx2->mx.exchange = strdup("ALT2.ASPMX.L.GOOGLE.COM"); assert_se(mx2->mx.exchange); log_info("MX: %s", strna(dns_resource_record_to_string(mx2))); mx3 = dns_resource_record_new_full(DNS_CLASS_IN, DNS_TYPE_MX, "kodapan.se"); assert_se(mx3); mx3->mx.priority = 10; mx3->mx.exchange = strdup("ASPMX2.GOOGLEMAIL.COM"); assert_se(mx3->mx.exchange); log_info("MX: %s", strna(dns_resource_record_to_string(mx3))); mx4 = dns_resource_record_new_full(DNS_CLASS_IN, DNS_TYPE_MX, "kodapan.se"); assert_se(mx4); mx4->mx.priority = 10; mx4->mx.exchange = strdup("ASPMX3.GOOGLEMAIL.COM"); assert_se(mx4->mx.exchange); log_info("MX: %s", strna(dns_resource_record_to_string(mx4))); rrsig = dns_resource_record_new_full(DNS_CLASS_IN, DNS_TYPE_RRSIG, "kodapan.se"); assert_se(rrsig); rrsig->rrsig.type_covered = DNS_TYPE_MX; rrsig->rrsig.algorithm = DNSSEC_ALGORITHM_RSASHA256; rrsig->rrsig.labels = 2; rrsig->rrsig.original_ttl = 900; rrsig->rrsig.expiration = 0x5e608a84; rrsig->rrsig.inception = 0x5e4e1584; rrsig->rrsig.key_tag = 44028; rrsig->rrsig.signer = strdup("kodapan.se."); assert_se(rrsig->rrsig.signer); rrsig->rrsig.signature_size = sizeof(signature_blob); rrsig->rrsig.signature = memdup(signature_blob, rrsig->rrsig.signature_size); assert_se(rrsig->rrsig.signature); log_info("RRSIG: %s", strna(dns_resource_record_to_string(rrsig))); dnskey = dns_resource_record_new_full(DNS_CLASS_IN, DNS_TYPE_DNSKEY, "kodapan.se"); assert_se(dnskey); dnskey->dnskey.flags = 256; dnskey->dnskey.protocol = 3; dnskey->dnskey.algorithm = DNSSEC_ALGORITHM_RSASHA256; dnskey->dnskey.key_size = sizeof(dnskey_blob); dnskey->dnskey.key = memdup(dnskey_blob, sizeof(dnskey_blob)); assert_se(dnskey->dnskey.key); log_info("DNSKEY: %s", strna(dns_resource_record_to_string(dnskey))); log_info("DNSKEY keytag: %u", dnssec_keytag(dnskey, false)); assert_se(dnssec_key_match_rrsig(mx1->key, rrsig) > 0); assert_se(dnssec_key_match_rrsig(mx2->key, rrsig) > 0); assert_se(dnssec_key_match_rrsig(mx3->key, rrsig) > 0); assert_se(dnssec_key_match_rrsig(mx4->key, rrsig) > 0); assert_se(dnssec_rrsig_match_dnskey(rrsig, dnskey, false) > 0); answer = dns_answer_new(4); assert_se(answer); assert_se(dns_answer_add(answer, mx1, 0, DNS_ANSWER_AUTHENTICATED) >= 0); assert_se(dns_answer_add(answer, mx2, 0, DNS_ANSWER_AUTHENTICATED) >= 0); assert_se(dns_answer_add(answer, mx3, 0, DNS_ANSWER_AUTHENTICATED) >= 0); assert_se(dns_answer_add(answer, mx4, 0, DNS_ANSWER_AUTHENTICATED) >= 0); /* Validate the RR as it if was 2020-02-24 today */ assert_se(dnssec_verify_rrset(answer, mx1->key, rrsig, dnskey, 1582534685*USEC_PER_SEC, &result) >= 0); assert_se(result == DNSSEC_VALIDATED); } static void test_dnssec_nsec3_hash(void) { static const uint8_t salt[] = { 0xB0, 0x1D, 0xFA, 0xCE }; static const uint8_t next_hashed_name[] = { 0x84, 0x10, 0x26, 0x53, 0xc9, 0xfa, 0x4d, 0x85, 0x6c, 0x97, 0x82, 0xe2, 0x8f, 0xdf, 0x2d, 0x5e, 0x87, 0x69, 0xc4, 0x52 }; _cleanup_(dns_resource_record_unrefp) DnsResourceRecord *rr = NULL; uint8_t h[DNSSEC_HASH_SIZE_MAX]; _cleanup_free_ char *b = NULL; int k; /* The NSEC3 RR for eurid.eu on 2015-12-14. */ rr = dns_resource_record_new_full(DNS_CLASS_IN, DNS_TYPE_NSEC3, "PJ8S08RR45VIQDAQGE7EN3VHKNROTBMM.eurid.eu."); assert_se(rr); rr->nsec3.algorithm = DNSSEC_DIGEST_SHA1; rr->nsec3.flags = 1; rr->nsec3.iterations = 1; rr->nsec3.salt = memdup(salt, sizeof(salt)); assert_se(rr->nsec3.salt); rr->nsec3.salt_size = sizeof(salt); rr->nsec3.next_hashed_name = memdup(next_hashed_name, sizeof(next_hashed_name)); assert_se(rr->nsec3.next_hashed_name); rr->nsec3.next_hashed_name_size = sizeof(next_hashed_name); log_info("NSEC3: %s", strna(dns_resource_record_to_string(rr))); k = dnssec_nsec3_hash(rr, "eurid.eu", &h); assert_se(k >= 0); b = base32hexmem(h, k, false); assert_se(b); assert_se(strcasecmp(b, "PJ8S08RR45VIQDAQGE7EN3VHKNROTBMM") == 0); } #endif int main(int argc, char *argv[]) { #if HAVE_GCRYPT test_dnssec_verify_dns_key(); test_dnssec_verify_rfc8080_ed25519_example1(); test_dnssec_verify_rfc8080_ed25519_example2(); test_dnssec_verify_rrset(); test_dnssec_verify_rrset2(); test_dnssec_verify_rrset3(); test_dnssec_nsec3_hash(); #endif return 0; }