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/*
* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL project
* 2015.
*/
/* ====================================================================
* Copyright (c) 2015 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.
* ====================================================================
*
*/
#ifndef HEADER_CT_LOCL_H
# define HEADER_CT_LOCL_H
# ifdef __cplusplus
extern "C" {
# endif
# ifndef OPENSSL_NO_CT
/* All hashes are currently SHA256 */
# define SCT_V1_HASHLEN 32
/* Minimum RSA key size, from RFC6962 */
# define SCT_MIN_RSA_BITS 2048
/*
* From RFC6962: opaque SerializedSCT<1..2^16-1>; struct { SerializedSCT
* sct_list <1..2^16-1>; } SignedCertificateTimestampList;
*/
# define MAX_SCT_SIZE 65535
# define MAX_SCT_LIST_SIZE MAX_SCT_SIZE
typedef enum {
UNSET_ENTRY = -1,
X509_ENTRY = 0,
PRECERT_ENTRY = 1
} log_entry_type_t;
typedef enum {
UNSET_VERSION = -1,
SCT_V1 = 0
} sct_version_t;
typedef struct {
sct_version_t version;
/* If version is not SCT_V1 this contains the encoded SCT */
unsigned char *sct;
size_t sct_len;
/*
* If version is SCT_V1, fields below contain components of the SCT.
* "log_id", "ext" and "sig" point to buffers allocated with
* OPENSSL_malloc().
*/
unsigned char *log_id;
size_t log_id_len;
/*
* Note, we cannot distinguish between an unset timestamp, and one
* that is set to 0. However since CT didn't exist in 1970, no real
* SCT should ever be set as such.
*/
uint64_t timestamp;
unsigned char *ext;
size_t ext_len;
unsigned char hash_alg;
unsigned char sig_alg;
unsigned char *sig;
size_t sig_len;
/* Log entry type */
log_entry_type_t entry_type;
} SCT;
DEFINE_STACK_OF(SCT)
/*
* Allocate new SCT.
* Caller is responsible for calling SCT_free when done.
*/
SCT *SCT_new(void);
/*
* Free SCT and underlying datastructures.
*/
void SCT_free(SCT *sct);
/*
* Set the version of an SCT.
* Returns 1 on success, 0 if the version is unrecognized.
*/
int SCT_set_version(SCT *sct, sct_version_t version);
/*
* Set the log entry type of an SCT.
* Returns 1 on success.
*/
int SCT_set_log_entry_type(SCT *sct, log_entry_type_t entry_type);
/*
* Set the log id of an SCT to point directly to the *log_id specified.
* The SCT takes ownership of the specified pointer.
* Returns 1 on success.
*/
int SCT_set0_log_id(SCT *sct, unsigned char *log_id, size_t log_id_len);
/*
* Set the timestamp of an SCT.
*/
void SCT_set_timestamp(SCT *sct, uint64_t timestamp);
/*
* Set the signature type of an SCT
* Currently NID_sha256WithRSAEncryption or NID_ecdsa_with_SHA256.
* Returns 1 on success.
*/
int SCT_set_signature_nid(SCT *sct, int nid);
/*
* Set the extensions of an SCT to point directly to the *ext specified.
* The SCT takes ownership of the specified pointer.
*/
void SCT_set0_extensions(SCT *sct, unsigned char *ext, size_t ext_len);
/*
* Set the signature of an SCT to point directly to the *sig specified.
* The SCT takes ownership of the specified pointer.
*/
void SCT_set0_signature(SCT *sct, unsigned char *sig, size_t sig_len);
/*
* Returns the version of the SCT.
*/
sct_version_t SCT_get_version(const SCT *sct);
/*
* Returns the log entry type of the SCT.
*/
log_entry_type_t SCT_get_log_entry_type(const SCT *sct);
/*
* Set *log_id to point to the log id for the SCT. log_id must not be NULL.
* The SCT retains ownership of this pointer.
* Returns length of the data pointed to.
*/
size_t SCT_get0_log_id(const SCT *sct, unsigned char **log_id);
/*
* Returns the timestamp for the SCT.
*/
uint64_t SCT_get_timestamp(const SCT *sct);
/*
* Return the nid for the signature used by the SCT.
* Currently NID_sha256WithRSAEncryption or NID_ecdsa_with_SHA256
* (or NID_undef).
*/
int SCT_get_signature_nid(const SCT *sct);
/*
* Set *ext to point to the extension data for the SCT. ext must not be NULL.
* The SCT retains ownership of this pointer.
* Returns length of the data pointed to.
*/
size_t SCT_get0_extensions(const SCT *sct, unsigned char **ext);
/*
* Set *sig to point to the signature for the SCT. sig must not be NULL.
* The SCT retains ownership of this pointer.
* Returns length of the data pointed to.
*/
size_t SCT_get0_signature(const SCT *sct, unsigned char **sig);
# endif
/* BEGIN ERROR CODES */
/*
* The following lines are auto generated by the script mkerr.pl. Any changes
* made after this point may be overwritten when the script is next run.
*/
void ERR_load_CT_strings(void);
/* Error codes for the CT functions. */
/* Function codes. */
# define CT_F_SCT_NEW 100
# define CT_F_SCT_SET0_LOG_ID 101
# define CT_F_SCT_SET_LOG_ENTRY_TYPE 102
# define CT_F_SCT_SET_SIGNATURE_NID 103
# define CT_F_SCT_SET_VERSION 104
/* Reason codes. */
# define CT_R_INVALID_LOG_ID_LENGTH 100
# define CT_R_UNRECOGNIZED_SIGNATURE_NID 101
# define CT_R_UNSUPPORTED_ENTRY_TYPE 102
# define CT_R_UNSUPPORTED_VERSION 103
#ifdef __cplusplus
}
#endif
#endif
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