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Title "CTLOG_NEW 3ossl" For nroff, turn off justification. Always turn off hyphenation; it makes
way too many mistakes in technical documents.
CTLOG_new_ex, CTLOG_new, CTLOG_new_from_base64, CTLOG_new_from_base64_ex, CTLOG_free, CTLOG_get0_name, CTLOG_get0_log_id, CTLOG_get0_public_key - encapsulates information about a Certificate Transparency log Header "SYNOPSIS" .Vb 1 #include <openssl/ct.h> \& CTLOG *CTLOG_new_ex(EVP_PKEY *public_key, const char *name, OSSL_LIB_CTX *libctx, const char *propq); CTLOG *CTLOG_new(EVP_PKEY *public_key, const char *name); \& int CTLOG_new_from_base64_ex(CTLOG **ct_log, const char *pkey_base64, const char *name, OSSL_LIB_CTX *libctx, const char *propq); 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 Header "DESCRIPTION" \fBCTLOG_new_ex() returns a new \s-1CTLOG\s0 that represents the Certificate Transparency (\s-1CT\s0) log with the given public key and associates it with the library context libctx and property query string propq. 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() does the same thing as CTLOG_new_ex() but with the default library context and the default property query string.

\fBCTLOG_new_from_base64_ex() 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. The \s-1CTLOG\s0 will be associated with the given library context libctx and property query string propq.

\fBCTLOG_new_from_base64() does the same thing as \fBCTLOG_new_from_base64_ex() except that the default library context and property query string are used.

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

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.

Header "SEE ALSO" \fBct\|(7) Header "HISTORY" The functions CTLOG_new_ex() and CTLOG_new_from_base64_ex() were added in OpenSSL 3.0. All other functions were added in OpenSSL 1.1.0. Header "COPYRIGHT" Copyright 2016-2020 The OpenSSL Project Authors. All Rights Reserved.

Licensed under the Apache License 2.0 (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>.