[331] | 1 | /*
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| 2 | * Copyright 2016 The OpenSSL Project Authors. All Rights Reserved.
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| 3 | *
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| 4 | * Licensed under the OpenSSL license (the "License"). You may not use
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| 5 | * this file except in compliance with the License. You can obtain a copy
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| 6 | * in the file LICENSE in the source distribution or at
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| 7 | * https://www.openssl.org/source/license.html
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| 8 | */
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| 9 |
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| 10 | #ifdef OPENSSL_NO_CT
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| 11 | # error "CT is disabled"
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| 12 | #endif
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| 13 |
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| 14 | #include <openssl/asn1.h>
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| 15 | #include <openssl/bio.h>
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| 16 |
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| 17 | #include "ct_locl.h"
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| 18 |
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| 19 | static void SCT_signature_algorithms_print(const SCT *sct, BIO *out)
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| 20 | {
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| 21 | int nid = SCT_get_signature_nid(sct);
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| 22 |
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| 23 | if (nid == NID_undef)
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| 24 | BIO_printf(out, "%02X%02X", sct->hash_alg, sct->sig_alg);
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| 25 | else
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| 26 | BIO_printf(out, "%s", OBJ_nid2ln(nid));
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| 27 | }
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| 28 |
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| 29 | static void timestamp_print(uint64_t timestamp, BIO *out)
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| 30 | {
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| 31 | ASN1_GENERALIZEDTIME *gen = ASN1_GENERALIZEDTIME_new();
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| 32 | char genstr[20];
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| 33 |
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| 34 | if (gen == NULL)
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| 35 | return;
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| 36 | ASN1_GENERALIZEDTIME_adj(gen, (time_t)0,
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| 37 | (int)(timestamp / 86400000),
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| 38 | (timestamp % 86400000) / 1000);
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| 39 | /*
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| 40 | * Note GeneralizedTime from ASN1_GENERALIZETIME_adj is always 15
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| 41 | * characters long with a final Z. Update it with fractional seconds.
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| 42 | */
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| 43 | BIO_snprintf(genstr, sizeof(genstr), "%.14s.%03dZ",
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| 44 | ASN1_STRING_get0_data(gen), (unsigned int)(timestamp % 1000));
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| 45 | if (ASN1_GENERALIZEDTIME_set_string(gen, genstr))
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| 46 | ASN1_GENERALIZEDTIME_print(out, gen);
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| 47 | ASN1_GENERALIZEDTIME_free(gen);
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| 48 | }
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| 49 |
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| 50 | const char *SCT_validation_status_string(const SCT *sct)
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| 51 | {
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| 52 |
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| 53 | switch (SCT_get_validation_status(sct)) {
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| 54 | case SCT_VALIDATION_STATUS_NOT_SET:
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| 55 | return "not set";
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| 56 | case SCT_VALIDATION_STATUS_UNKNOWN_VERSION:
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| 57 | return "unknown version";
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| 58 | case SCT_VALIDATION_STATUS_UNKNOWN_LOG:
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| 59 | return "unknown log";
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| 60 | case SCT_VALIDATION_STATUS_UNVERIFIED:
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| 61 | return "unverified";
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| 62 | case SCT_VALIDATION_STATUS_INVALID:
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| 63 | return "invalid";
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| 64 | case SCT_VALIDATION_STATUS_VALID:
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| 65 | return "valid";
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| 66 | }
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| 67 | return "unknown status";
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| 68 | }
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| 69 |
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| 70 | void SCT_print(const SCT *sct, BIO *out, int indent,
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| 71 | const CTLOG_STORE *log_store)
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| 72 | {
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| 73 | const CTLOG *log = NULL;
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| 74 |
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| 75 | if (log_store != NULL) {
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| 76 | log = CTLOG_STORE_get0_log_by_id(log_store, sct->log_id,
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| 77 | sct->log_id_len);
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| 78 | }
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| 79 |
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| 80 | BIO_printf(out, "%*sSigned Certificate Timestamp:", indent, "");
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| 81 | BIO_printf(out, "\n%*sVersion : ", indent + 4, "");
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| 82 |
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| 83 | if (sct->version != SCT_VERSION_V1) {
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| 84 | BIO_printf(out, "unknown\n%*s", indent + 16, "");
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| 85 | BIO_hex_string(out, indent + 16, 16, sct->sct, sct->sct_len);
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| 86 | return;
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| 87 | }
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| 88 |
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| 89 | BIO_printf(out, "v1 (0x0)");
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| 90 |
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| 91 | if (log != NULL) {
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| 92 | BIO_printf(out, "\n%*sLog : %s", indent + 4, "",
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| 93 | CTLOG_get0_name(log));
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| 94 | }
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| 95 |
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| 96 | BIO_printf(out, "\n%*sLog ID : ", indent + 4, "");
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| 97 | BIO_hex_string(out, indent + 16, 16, sct->log_id, sct->log_id_len);
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| 98 |
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| 99 | BIO_printf(out, "\n%*sTimestamp : ", indent + 4, "");
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| 100 | timestamp_print(sct->timestamp, out);
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| 101 |
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| 102 | BIO_printf(out, "\n%*sExtensions: ", indent + 4, "");
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| 103 | if (sct->ext_len == 0)
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| 104 | BIO_printf(out, "none");
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| 105 | else
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| 106 | BIO_hex_string(out, indent + 16, 16, sct->ext, sct->ext_len);
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| 107 |
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| 108 | BIO_printf(out, "\n%*sSignature : ", indent + 4, "");
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| 109 | SCT_signature_algorithms_print(sct, out);
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| 110 | BIO_printf(out, "\n%*s ", indent + 4, "");
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| 111 | BIO_hex_string(out, indent + 16, 16, sct->sig, sct->sig_len);
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| 112 | }
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| 113 |
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| 114 | void SCT_LIST_print(const STACK_OF(SCT) *sct_list, BIO *out, int indent,
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| 115 | const char *separator, const CTLOG_STORE *log_store)
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| 116 | {
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| 117 | int sct_count = sk_SCT_num(sct_list);
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| 118 | int i;
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| 119 |
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| 120 | for (i = 0; i < sct_count; ++i) {
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| 121 | SCT *sct = sk_SCT_value(sct_list, i);
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| 122 |
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| 123 | SCT_print(sct, out, indent, log_store);
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| 124 | if (i < sk_SCT_num(sct_list) - 1)
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| 125 | BIO_printf(out, "%s", separator);
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| 126 | }
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| 127 | }
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