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Title "CTLOG_NEW 3"
CTLOG_NEW 3 "2022-03-15" "1.1.1n" "OpenSSL"
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"NAME"
CTLOG_new, CTLOG_new_from_base64, CTLOG_free, CTLOG_get0_name, CTLOG_get0_log_id, CTLOG_get0_public_key - encapsulates information about a Certificate Transparency log
"SYNOPSIS"
Header "SYNOPSIS" .Vb 1 #include <openssl/ct.h> \& CTLOG *CTLOG_new(EVP_PKEY *public_key, const char *name); int CTLOG_new_from_base64(CTLOG ** ct_log, const char *pkey_base64, const char *name); void CTLOG_free(CTLOG *log); const char *CTLOG_get0_name(const CTLOG *log); void CTLOG_get0_log_id(const CTLOG *log, const uint8_t **log_id, size_t *log_id_len); EVP_PKEY *CTLOG_get0_public_key(const CTLOG *log); .Ve
"DESCRIPTION"
Header "DESCRIPTION" \fBCTLOG_new() returns a new \s-1CTLOG\s0 that represents the Certificate Transparency (\s-1CT\s0) log with the given public key. A name must also be provided that can be used to help users identify this log. Ownership of the public key is transferred.

\fBCTLOG_new_from_base64() also creates a new \s-1CTLOG,\s0 but takes the public key in base64-encoded \s-1DER\s0 form and sets the ct_log pointer to point to the new \s-1CTLOG.\s0 The base64 will be decoded and the public key parsed.

Regardless of whether CTLOG_new() or CTLOG_new_from_base64() is used, it is the caller's responsibility to pass the \s-1CTLOG\s0 to CTLOG_free() once it is no longer needed. This will delete it and, if created by CTLOG_new(), the \s-1EVP_PKEY\s0 that was passed to it.

\fBCTLOG_get0_name() returns the name of the log, as provided when the \s-1CTLOG\s0 was created. Ownership of the string remains with the \s-1CTLOG.\s0

\fBCTLOG_get0_log_id() sets *log_id to point to a string containing that log's LogID (see \s-1RFC 6962\s0). It sets *log_id_len to the length of that LogID. For a v1 \s-1CT\s0 log, the LogID will be a \s-1SHA-256\s0 hash (i.e. 32 bytes long). Ownership of the string remains with the \s-1CTLOG.\s0

\fBCTLOG_get0_public_key() returns the public key of the \s-1CT\s0 log. Ownership of the \s-1EVP_PKEY\s0 remains with the \s-1CTLOG.\s0

"RETURN VALUES"
Header "RETURN VALUES" \fBCTLOG_new() will return \s-1NULL\s0 if an error occurs.

\fBCTLOG_new_from_base64() will return 1 on success, 0 otherwise.

"SEE ALSO"
Header "SEE ALSO" \fBct\|(7)
"HISTORY"
Header "HISTORY" These functions were added in OpenSSL 1.1.0.
"COPYRIGHT"
Header "COPYRIGHT" Copyright 2016 The OpenSSL Project Authors. All Rights Reserved.

Licensed under the OpenSSL license (the \*(L"License\*(R"). You may not use this file except in compliance with the License. You can obtain a copy in the file \s-1LICENSE\s0 in the source distribution or at <https://www.openssl.org/source/license.html>.