1CTLOG_NEW(3)                        OpenSSL                       CTLOG_NEW(3)
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NAME

6       CTLOG_new, CTLOG_new_from_base64, CTLOG_free, CTLOG_get0_name,
7       CTLOG_get0_log_id, CTLOG_get0_public_key - encapsulates information
8       about a Certificate Transparency log
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SYNOPSIS

11        #include <openssl/ct.h>
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13        CTLOG *CTLOG_new(EVP_PKEY *public_key, const char *name);
14        int CTLOG_new_from_base64(CTLOG ** ct_log,
15                                  const char *pkey_base64, const char *name);
16        void CTLOG_free(CTLOG *log);
17        const char *CTLOG_get0_name(const CTLOG *log);
18        void CTLOG_get0_log_id(const CTLOG *log, const uint8_t **log_id,
19                               size_t *log_id_len);
20        EVP_PKEY *CTLOG_get0_public_key(const CTLOG *log);
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DESCRIPTION

23       CTLOG_new() returns a new CTLOG that represents the Certificate
24       Transparency (CT) log with the given public key. A name must also be
25       provided that can be used to help users identify this log. Ownership of
26       the public key is transferred.
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28       CTLOG_new_from_base64() also creates a new CTLOG, but takes the public
29       key in base64-encoded DER form and sets the ct_log pointer to point to
30       the new CTLOG.  The base64 will be decoded and the public key parsed.
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32       Regardless of whether CTLOG_new() or CTLOG_new_from_base64() is used,
33       it is the caller's responsibility to pass the CTLOG to CTLOG_free()
34       once it is no longer needed. This will delete it and, if created by
35       CTLOG_new(), the EVP_PKEY that was passed to it.
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37       CTLOG_get0_name() returns the name of the log, as provided when the
38       CTLOG was created. Ownership of the string remains with the CTLOG.
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40       CTLOG_get0_log_id() sets *log_id to point to a string containing that
41       log's LogID (see RFC 6962). It sets *log_id_len to the length of that
42       LogID. For a v1 CT log, the LogID will be a SHA-256 hash (i.e. 32 bytes
43       long). Ownership of the string remains with the CTLOG.
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45       CTLOG_get0_public_key() returns the public key of the CT log. Ownership
46       of the EVP_PKEY remains with the CTLOG.
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RETURN VALUES

49       CTLOG_new() will return NULL if an error occurs.
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51       CTLOG_new_from_base64() will return 1 on success, 0 otherwise.
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SEE ALSO

54       ct(7)
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HISTORY

57       These functions were added in OpenSSL 1.1.0.
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60       Copyright 2016 The OpenSSL Project Authors. All Rights Reserved.
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62       Licensed under the OpenSSL license (the "License").  You may not use
63       this file except in compliance with the License.  You can obtain a copy
64       in the file LICENSE in the source distribution or at
65       <https://www.openssl.org/source/license.html>.
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691.1.1i                            2021-07-22                      CTLOG_NEW(3)
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