-/* crypto/ct/ct_locl.h */
/*
- * Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL project
- * 2015.
+ * Written by Rob Percival (robpercival@google.com) for the OpenSSL project.
*/
/* ====================================================================
- * Copyright (c) 2015 The OpenSSL Project. All rights reserved.
+ * Copyright (c) 2016 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
* 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
+#ifdef OPENSSL_NO_CT
+# error CT is disabled.
+#endif
-# ifndef OPENSSL_NO_CT
+#include <stddef.h>
-/* All hashes are currently SHA256 */
-# define SCT_V1_HASHLEN 32
-/* Minimum RSA key size, from RFC6962 */
-# define SCT_MIN_RSA_BITS 2048
+#include <openssl/ct.h>
+#include <openssl/evp.h>
+#include <openssl/x509.h>
+#include <openssl/safestack.h>
/*
* 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
-# 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 {
+/* Signed Certificate Timestamp */
+struct sct_st {
sct_version_t version;
- /* If version is not SCT_V1 this contains the encoded SCT */
+ /* If version is not SCT_VERSION_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. "logid",
- * "ext" and "sig" point to buffers allocated with OPENSSL_malloc().
- */
+ /* If version is SCT_VERSION_V1, fields below contain components of the SCT */
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.
- */
+ * 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 *sig;
size_t sig_len;
/* Log entry type */
- log_entry_type_t entry_type;
-} SCT;
-
-DECLARE_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 *logid 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);
+ ct_log_entry_type_t entry_type;
+ /* Where this SCT was found, e.g. certificate, OCSP response, etc. */
+ sct_source_t source;
+ /* The CT log that produced this SCT. */
+ CTLOG *log;
+};
-/*
- * 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);
+/* Miscellaneous data that is useful when verifying an SCT */
+struct sct_ctx_st {
+ /* Public key */
+ EVP_PKEY *pkey;
+ /* Hash of public key */
+ unsigned char *pkeyhash;
+ size_t pkeyhashlen;
+ /* For pre-certificate: issuer public key hash */
+ unsigned char *ihash;
+ size_t ihashlen;
+ /* certificate encoding */
+ unsigned char *certder;
+ size_t certderlen;
+ /* pre-certificate encoding */
+ unsigned char *preder;
+ size_t prederlen;
+};
/*
- * Set *logid to point to the log id for the SCT. logid must not be NULL.
- * The SCT retains ownership of this pointer.
- * Returns length of the data pointed to.
+ * Creates a new context for verifying an SCT.
*/
-size_t SCT_get0_log_id(const SCT *sct, unsigned char **log_id);
-
+SCT_CTX *SCT_CTX_new(void);
/*
- * Returns the timestamp for the SCT.
+ * Deletes an SCT verification context.
*/
-uint64_t SCT_get_timestamp(const SCT *sct);
+void SCT_CTX_free(SCT_CTX *sctx);
-/*
- * 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);
+/* Sets the certificate that the SCT is related to */
+int SCT_CTX_set1_cert(SCT_CTX *sctx, X509 *cert, X509 *presigner);
+/* Sets the issuer of the certificate that the SCT is related to */
+int SCT_CTX_set1_issuer(SCT_CTX *sctx, const X509 *issuer);
+/* Sets the public key of the issuer of the certificate that the SCT relates to */
+int SCT_CTX_set1_issuer_pubkey(SCT_CTX *sctx, X509_PUBKEY *pubkey);
+/* Sets the public key of the CT log that the SCT is from */
+int SCT_CTX_set1_pubkey(SCT_CTX *sctx, X509_PUBKEY *pubkey);
/*
- * 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.
+ * Does this SCT have the minimum fields populated to be usuable?
+ * Returns 1 if so, 0 otherwise.
*/
-size_t SCT_get0_extensions(const SCT *sct, unsigned char **ext);
+int SCT_is_complete(const SCT *sct);
/*
- * 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.
+ * Does this SCT have the signature-related fields populated?
+ * Returns 1 if so, 0 otherwise.
+ * This checks that the signature and hash algorithms are set to supported
+ * values and that the signature field is set.
*/
-size_t SCT_get0_signature(const SCT *sct, unsigned char **sig);
+int SCT_signature_is_complete(const SCT *sct);
-# 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
projects / openssl.git / blobdiff