Add more CT utility routines to be used as part of larger patch.

Reviewed-by: Ben Laurie <ben@openssl.org>
Reviewed-by: Rich Salz <rsalz@openssl.org>

1 files changed, 129 insertions, 0 deletions

diff --git a/crypto/ct/ct_prn.c b/crypto/ct/ct_prn.c
new file mode 100644
index 0000000000..91325537dd
--- /dev/null
+++ b/crypto/ct/ct_prn.c
@@ -0,0 +1,129 @@
+/*
+ * Written by Rob Stradling (rob@comodo.com) and Stephen Henson
+ * (steve@openssl.org) for the OpenSSL project 2014.
+ */
+/* ====================================================================
+ * Copyright (c) 2014 The OpenSSL Project.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ *
+ * 3. All advertising materials mentioning features or use of this
+ *    software must display the following acknowledgment:
+ *    "This product includes software developed by the OpenSSL Project
+ *    for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
+ *
+ * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
+ *    endorse or promote products derived from this software without
+ *    prior written permission. For written permission, please contact
+ *    licensing@OpenSSL.org.
+ *
+ * 5. Products derived from this software may not be called "OpenSSL"
+ *    nor may "OpenSSL" appear in their names without prior written
+ *    permission of the OpenSSL Project.
+ *
+ * 6. Redistributions of any form whatsoever must retain the following
+ *    acknowledgment:
+ *    "This product includes software developed by the OpenSSL Project
+ *    for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
+ * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
+ * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ * ====================================================================
+ *
+ * This product includes cryptographic software written by Eric Young
+ * (eay@cryptsoft.com).  This product includes software written by Tim
+ * Hudson (tjh@cryptsoft.com).
+ *
+ */
+
+#ifndef OPENSSL_NO_CT
+
+# include <limits.h>
+# include "internal/cryptlib.h"
+# include <openssl/asn1.h>
+# include <openssl/evp.h>
+# include <openssl/x509.h>
+# include <openssl/x509v3.h>
+# include "crypto/include/internal/ct_int.h"
+
+static void sct_sigalg_print(BIO *out, const SCT *sct)
+{
+    int nid = SCT_get_signature_nid(sct);
+
+    if (nid <= 0)
+        BIO_printf(out, "%02X%02X", sct->hash_alg, sct->sig_alg);
+    else
+        BIO_printf(out, "%s", OBJ_nid2ln(nid));
+}
+
+static void timestamp_print(BIO *out, uint64_t timestamp)
+{
+    ASN1_GENERALIZEDTIME *gen = ASN1_GENERALIZEDTIME_new();
+    char genstr[20];
+
+    ASN1_GENERALIZEDTIME_adj(gen, (time_t)0,
+                             (int)(timestamp / 86400000),
+                             (timestamp % 86400000) / 1000);
+    /*
+     * Note GeneralizedTime from ASN1_GENERALIZETIME_adj is always 15
+     * characters long with a final Z. Update it with fractional seconds.
+     */
+    BIO_snprintf(genstr, sizeof(genstr), "%.14s.%03dZ",
+                 ASN1_STRING_data(gen), (unsigned int)(timestamp % 1000));
+    ASN1_GENERALIZEDTIME_set_string(gen, genstr);
+    ASN1_GENERALIZEDTIME_print(out, gen);
+    ASN1_GENERALIZEDTIME_free(gen);
+}
+
+void SCT_print(SCT *sct, BIO *out, int indent)
+{
+    BIO_printf(out, "%*sSigned Certificate Timestamp:", indent, "");
+    BIO_printf(out, "\n%*sVersion   : ", indent + 4, "");
+
+    if (sct->version != SCT_V1) {
+        BIO_printf(out, "unknown\n%*s", indent + 16, "");
+        BIO_hex_string(out, indent + 16, 16, sct->sct, sct->sct_len);
+        return;
+    }
+
+    BIO_printf(out, "v1 (0x0)");
+
+    BIO_printf(out, "\n%*sLog ID    : ", indent + 4, "");
+    BIO_hex_string(out, indent + 16, 16, sct->log_id, sct->log_id_len);
+
+    BIO_printf(out, "\n%*sTimestamp : ", indent + 4, "");
+    timestamp_print(out, sct->timestamp);
+
+    BIO_printf(out, "\n%*sExtensions: ", indent + 4, "");
+    if (sct->ext_len == 0)
+        BIO_printf(out, "none");
+    else
+        BIO_hex_string(out, indent + 16, 16, sct->ext, sct->ext_len);
+
+    BIO_printf(out, "\n%*sSignature : ", indent + 4, "");
+    sct_sigalg_print(out, sct);
+    BIO_printf(out, "\n%*s            ", indent + 4, "");
+    BIO_hex_string(out, indent + 16, 16, sct->sig, sct->sig_len);
+}
+
+#endif