text: /*
   * Copyright 2006-2016 The OpenSSL Project Authors. All Rights Reserved.
   *
   * Licensed under the OpenSSL license (the "License").  You may not use
   * this file except in compliance with the License.  You can obtain a copy
   * in the file LICENSE in the source distribution or at
   * https://www.openssl.org/source/license.html
   */
  
  #ifndef HEADER_TS_H
  # define HEADER_TS_H
  
  # include <openssl/opensslconf.h>
  
  # ifndef OPENSSL_NO_TS
  # include <openssl/symhacks.h>
  # include <openssl/buffer.h>
  # include <openssl/evp.h>
  # include <openssl/bio.h>
  # include <openssl/stack.h>
  # include <openssl/asn1.h>
  # include <openssl/safestack.h>
  # include <openssl/rsa.h>
  # include <openssl/dsa.h>
  # include <openssl/dh.h>
  # ifdef  __cplusplus
  extern "C" {
  # endif
  
  # include <openssl/x509.h>
  # include <openssl/x509v3.h>
  
  typedef struct TS_msg_imprint_st TS_MSG_IMPRINT;
  typedef struct TS_req_st TS_REQ;
  typedef struct TS_accuracy_st TS_ACCURACY;
  typedef struct TS_tst_info_st TS_TST_INFO;
  
  /* Possible values for status. */
  # define TS_STATUS_GRANTED                       0
  # define TS_STATUS_GRANTED_WITH_MODS             1
  # define TS_STATUS_REJECTION                     2
  # define TS_STATUS_WAITING                       3
  # define TS_STATUS_REVOCATION_WARNING            4
  # define TS_STATUS_REVOCATION_NOTIFICATION       5
  
  /* Possible values for failure_info. */
  # define TS_INFO_BAD_ALG                 0
  # define TS_INFO_BAD_REQUEST             2
  # define TS_INFO_BAD_DATA_FORMAT         5
  # define TS_INFO_TIME_NOT_AVAILABLE      14
  # define TS_INFO_UNACCEPTED_POLICY       15
  # define TS_INFO_UNACCEPTED_EXTENSION    16
  # define TS_INFO_ADD_INFO_NOT_AVAILABLE  17
  # define TS_INFO_SYSTEM_FAILURE          25
  
  
  typedef struct TS_status_info_st TS_STATUS_INFO;
  typedef struct ESS_issuer_serial ESS_ISSUER_SERIAL;
  typedef struct ESS_cert_id ESS_CERT_ID;
  typedef struct ESS_signing_cert ESS_SIGNING_CERT;
  
  DEFINE_STACK_OF(ESS_CERT_ID)
  
  typedef struct TS_resp_st TS_RESP;
  
  TS_REQ *TS_REQ_new(void);
  void TS_REQ_free(TS_REQ *a);
  int i2d_TS_REQ(const TS_REQ *a, unsigned char **pp);
  TS_REQ *d2i_TS_REQ(TS_REQ **a, const unsigned char **pp, long length);
  
  TS_REQ *TS_REQ_dup(TS_REQ *a);
  
  #ifndef OPENSSL_NO_STDIO
  TS_REQ *d2i_TS_REQ_fp(FILE *fp, TS_REQ **a);
  int i2d_TS_REQ_fp(FILE *fp, TS_REQ *a);
  #endif
  TS_REQ *d2i_TS_REQ_bio(BIO *fp, TS_REQ **a);
  int i2d_TS_REQ_bio(BIO *fp, TS_REQ *a);
  
  TS_MSG_IMPRINT *TS_MSG_IMPRINT_new(void);
  void TS_MSG_IMPRINT_free(TS_MSG_IMPRINT *a);
  int i2d_TS_MSG_IMPRINT(const TS_MSG_IMPRINT *a, unsigned char **pp);
  TS_MSG_IMPRINT *d2i_TS_MSG_IMPRINT(TS_MSG_IMPRINT **a,
                                     const unsigned char **pp, long length);
  
  TS_MSG_IMPRINT *TS_MSG_IMPRINT_dup(TS_MSG_IMPRINT *a);
  
  #ifndef OPENSSL_NO_STDIO
  TS_MSG_IMPRINT *d2i_TS_MSG_IMPRINT_fp(FILE *fp, TS_MSG_IMPRINT **a);
  int i2d_TS_MSG_IMPRINT_fp(FILE *fp, TS_MSG_IMPRINT *a);
  #endif
  TS_MSG_IMPRINT *d2i_TS_MSG_IMPRINT_bio(BIO *bio, TS_MSG_IMPRINT **a);
  int i2d_TS_MSG_IMPRINT_bio(BIO *bio, TS_MSG_IMPRINT *a);
  
  TS_RESP *TS_RESP_new(void);
  void TS_RESP_free(TS_RESP *a);
  int i2d_TS_RESP(const TS_RESP *a, unsigned char **pp);
  TS_RESP *d2i_TS_RESP(TS_RESP **a, const unsigned char **pp, long length);
  TS_TST_INFO *PKCS7_to_TS_TST_INFO(PKCS7 *token);
  TS_RESP *TS_RESP_dup(TS_RESP *a);
  
  #ifndef OPENSSL_NO_STDIO
  TS_RESP *d2i_TS_RESP_fp(FILE *fp, TS_RESP **a);
  int i2d_TS_RESP_fp(FILE *fp, TS_RESP *a);
  #endif
  TS_RESP *d2i_TS_RESP_bio(BIO *bio, TS_RESP **a);
  int i2d_TS_RESP_bio(BIO *bio, TS_RESP *a);
  
  TS_STATUS_INFO *TS_STATUS_INFO_new(void);
  void TS_STATUS_INFO_free(TS_STATUS_INFO *a);
  int i2d_TS_STATUS_INFO(const TS_STATUS_INFO *a, unsigned char **pp);
  TS_STATUS_INFO *d2i_TS_STATUS_INFO(TS_STATUS_INFO **a,
                                     const unsigned char **pp, long length);
  TS_STATUS_INFO *TS_STATUS_INFO_dup(TS_STATUS_INFO *a);
  
  TS_TST_INFO *TS_TST_INFO_new(void);
  void TS_TST_INFO_free(TS_TST_INFO *a);
  int i2d_TS_TST_INFO(const TS_TST_INFO *a, unsigned char **pp);
  TS_TST_INFO *d2i_TS_TST_INFO(TS_TST_INFO **a, const unsigned char **pp,
                               long length);
  TS_TST_INFO *TS_TST_INFO_dup(TS_TST_INFO *a);
  
  #ifndef OPENSSL_NO_STDIO
  TS_TST_INFO *d2i_TS_TST_INFO_fp(FILE *fp, TS_TST_INFO **a);
  int i2d_TS_TST_INFO_fp(FILE *fp, TS_TST_INFO *a);
  #endif
  TS_TST_INFO *d2i_TS_TST_INFO_bio(BIO *bio, TS_TST_INFO **a);
  int i2d_TS_TST_INFO_bio(BIO *bio, TS_TST_INFO *a);
  
  TS_ACCURACY *TS_ACCURACY_new(void);
  void TS_ACCURACY_free(TS_ACCURACY *a);
  int i2d_TS_ACCURACY(const TS_ACCURACY *a, unsigned char **pp);
  TS_ACCURACY *d2i_TS_ACCURACY(TS_ACCURACY **a, const unsigned char **pp,
                               long length);
  TS_ACCURACY *TS_ACCURACY_dup(TS_ACCURACY *a);
  
  ESS_ISSUER_SERIAL *ESS_ISSUER_SERIAL_new(void);
  void ESS_ISSUER_SERIAL_free(ESS_ISSUER_SERIAL *a);
  int i2d_ESS_ISSUER_SERIAL(const ESS_ISSUER_SERIAL *a, unsigned char **pp);
  ESS_ISSUER_SERIAL *d2i_ESS_ISSUER_SERIAL(ESS_ISSUER_SERIAL **a,
                                           const unsigned char **pp,
                                           long length);
  ESS_ISSUER_SERIAL *ESS_ISSUER_SERIAL_dup(ESS_ISSUER_SERIAL *a);
  
  ESS_CERT_ID *ESS_CERT_ID_new(void);
  void ESS_CERT_ID_free(ESS_CERT_ID *a);
  int i2d_ESS_CERT_ID(const ESS_CERT_ID *a, unsigned char **pp);
  ESS_CERT_ID *d2i_ESS_CERT_ID(ESS_CERT_ID **a, const unsigned char **pp,
                               long length);
  ESS_CERT_ID *ESS_CERT_ID_dup(ESS_CERT_ID *a);
  
  ESS_SIGNING_CERT *ESS_SIGNING_CERT_new(void);
  void ESS_SIGNING_CERT_free(ESS_SIGNING_CERT *a);
  int i2d_ESS_SIGNING_CERT(const ESS_SIGNING_CERT *a, unsigned char **pp);
  ESS_SIGNING_CERT *d2i_ESS_SIGNING_CERT(ESS_SIGNING_CERT **a,
                                         const unsigned char **pp, long length);
  ESS_SIGNING_CERT *ESS_SIGNING_CERT_dup(ESS_SIGNING_CERT *a);
  
  int TS_REQ_set_version(TS_REQ *a, long version);
  long TS_REQ_get_version(const TS_REQ *a);
  
  int TS_STATUS_INFO_set_status(TS_STATUS_INFO *a, int i);
  ASN1_INTEGER *TS_STATUS_INFO_get0_status(TS_STATUS_INFO *a);
  
  STACK_OF(ASN1_UTF8STRING) *TS_STATUS_INFO_get0_text(TS_STATUS_INFO *a);
  
  ASN1_BIT_STRING *TS_STATUS_INFO_get0_failure_info(TS_STATUS_INFO *a);
  
  int TS_REQ_set_msg_imprint(TS_REQ *a, TS_MSG_IMPRINT *msg_imprint);
  TS_MSG_IMPRINT *TS_REQ_get_msg_imprint(TS_REQ *a);
  
  int TS_MSG_IMPRINT_set_algo(TS_MSG_IMPRINT *a, X509_ALGOR *alg);
  X509_ALGOR *TS_MSG_IMPRINT_get_algo(TS_MSG_IMPRINT *a);
  
  int TS_MSG_IMPRINT_set_msg(TS_MSG_IMPRINT *a, unsigned char *d, int len);
  ASN1_OCTET_STRING *TS_MSG_IMPRINT_get_msg(TS_MSG_IMPRINT *a);
  
  int TS_REQ_set_policy_id(TS_REQ *a, const ASN1_OBJECT *policy);
  ASN1_OBJECT *TS_REQ_get_policy_id(TS_REQ *a);
  
  int TS_REQ_set_nonce(TS_REQ *a, const ASN1_INTEGER *nonce);
  const ASN1_INTEGER *TS_REQ_get_nonce(const TS_REQ *a);
  
  int TS_REQ_set_cert_req(TS_REQ *a, int cert_req);
  int TS_REQ_get_cert_req(const TS_REQ *a);
  
  STACK_OF(X509_EXTENSION) *TS_REQ_get_exts(TS_REQ *a);
  void TS_REQ_ext_free(TS_REQ *a);
  int TS_REQ_get_ext_count(TS_REQ *a);
  int TS_REQ_get_ext_by_NID(TS_REQ *a, int nid, int lastpos);
  int TS_REQ_get_ext_by_OBJ(TS_REQ *a, const ASN1_OBJECT *obj, int lastpos);
  int TS_REQ_get_ext_by_critical(TS_REQ *a, int crit, int lastpos);
  X509_EXTENSION *TS_REQ_get_ext(TS_REQ *a, int loc);
  X509_EXTENSION *TS_REQ_delete_ext(TS_REQ *a, int loc);
  int TS_REQ_add_ext(TS_REQ *a, X509_EXTENSION *ex, int loc);
  void *TS_REQ_get_ext_d2i(TS_REQ *a, int nid, int *crit, int *idx);
  
  /* Function declarations for TS_REQ defined in ts/ts_req_print.c */
  
  int TS_REQ_print_bio(BIO *bio, TS_REQ *a);
  
  /* Function declarations for TS_RESP defined in ts/ts_resp_utils.c */
  
  int TS_RESP_set_status_info(TS_RESP *a, TS_STATUS_INFO *info);
  TS_STATUS_INFO *TS_RESP_get_status_info(TS_RESP *a);
  
  /* Caller loses ownership of PKCS7 and TS_TST_INFO objects. */
  void TS_RESP_set_tst_info(TS_RESP *a, PKCS7 *p7, TS_TST_INFO *tst_info);
  PKCS7 *TS_RESP_get_token(TS_RESP *a);
  TS_TST_INFO *TS_RESP_get_tst_info(TS_RESP *a);
  
  int TS_TST_INFO_set_version(TS_TST_INFO *a, long version);
  long TS_TST_INFO_get_version(const TS_TST_INFO *a);
  
  int TS_TST_INFO_set_policy_id(TS_TST_INFO *a, ASN1_OBJECT *policy_id);
  ASN1_OBJECT *TS_TST_INFO_get_policy_id(TS_TST_INFO *a);
  
  int TS_TST_INFO_set_msg_imprint(TS_TST_INFO *a, TS_MSG_IMPRINT *msg_imprint);
  TS_MSG_IMPRINT *TS_TST_INFO_get_msg_imprint(TS_TST_INFO *a);
  
  int TS_TST_INFO_set_serial(TS_TST_INFO *a, const ASN1_INTEGER *serial);
  const ASN1_INTEGER *TS_TST_INFO_get_serial(const TS_TST_INFO *a);
  
  int TS_TST_INFO_set_time(TS_TST_INFO *a, const ASN1_GENERALIZEDTIME *gtime);
  const ASN1_GENERALIZEDTIME *TS_TST_INFO_get_time(const TS_TST_INFO *a);
  
  int TS_TST_INFO_set_accuracy(TS_TST_INFO *a, TS_ACCURACY *accuracy);
  TS_ACCURACY *TS_TST_INFO_get_accuracy(TS_TST_INFO *a);
  
  int TS_ACCURACY_set_seconds(TS_ACCURACY *a, const ASN1_INTEGER *seconds);
  const ASN1_INTEGER *TS_ACCURACY_get_seconds(const TS_ACCURACY *a);
  
  int TS_ACCURACY_set_millis(TS_ACCURACY *a, const ASN1_INTEGER *millis);
  const ASN1_INTEGER *TS_ACCURACY_get_millis(const TS_ACCURACY *a);
  
  int TS_ACCURACY_set_micros(TS_ACCURACY *a, const ASN1_INTEGER *micros);
  const ASN1_INTEGER *TS_ACCURACY_get_micros(const TS_ACCURACY *a);
  
  int TS_TST_INFO_set_ordering(TS_TST_INFO *a, int ordering);
  int TS_TST_INFO_get_ordering(const TS_TST_INFO *a);
  
  int TS_TST_INFO_set_nonce(TS_TST_INFO *a, const ASN1_INTEGER *nonce);
  const ASN1_INTEGER *TS_TST_INFO_get_nonce(const TS_TST_INFO *a);
  
  int TS_TST_INFO_set_tsa(TS_TST_INFO *a, GENERAL_NAME *tsa);
  GENERAL_NAME *TS_TST_INFO_get_tsa(TS_TST_INFO *a);
  
  STACK_OF(X509_EXTENSION) *TS_TST_INFO_get_exts(TS_TST_INFO *a);
  void TS_TST_INFO_ext_free(TS_TST_INFO *a);
  int TS_TST_INFO_get_ext_count(TS_TST_INFO *a);
  int TS_TST_INFO_get_ext_by_NID(TS_TST_INFO *a, int nid, int lastpos);
  int TS_TST_INFO_get_ext_by_OBJ(TS_TST_INFO *a, const ASN1_OBJECT *obj,
                                 int lastpos);
  int TS_TST_INFO_get_ext_by_critical(TS_TST_INFO *a, int crit, int lastpos);
  X509_EXTENSION *TS_TST_INFO_get_ext(TS_TST_INFO *a, int loc);
  X509_EXTENSION *TS_TST_INFO_delete_ext(TS_TST_INFO *a, int loc);
  int TS_TST_INFO_add_ext(TS_TST_INFO *a, X509_EXTENSION *ex, int loc);
  void *TS_TST_INFO_get_ext_d2i(TS_TST_INFO *a, int nid, int *crit, int *idx);
  
  /*
   * Declarations related to response generation, defined in ts/ts_resp_sign.c.
   */
  
  /* Optional flags for response generation. */
  
  /* Don't include the TSA name in response. */
  # define TS_TSA_NAME             0x01
  
  /* Set ordering to true in response. */
  # define TS_ORDERING             0x02
  
  /*
   * Include the signer certificate and the other specified certificates in
   * the ESS signing certificate attribute beside the PKCS7 signed data.
   * Only the signer certificates is included by default.
   */
  # define TS_ESS_CERT_ID_CHAIN    0x04
  
  /* Forward declaration. */
  struct TS_resp_ctx;
  
  /* This must return a unique number less than 160 bits long. */
  typedef ASN1_INTEGER *(*TS_serial_cb) (struct TS_resp_ctx *, void *);
  
  /*
   * This must return the seconds and microseconds since Jan 1, 1970 in the sec
   * and usec variables allocated by the caller. Return non-zero for success
   * and zero for failure.
   */
  typedef int (*TS_time_cb) (struct TS_resp_ctx *, void *, long *sec,
                             long *usec);
  
  /*
   * This must process the given extension. It can modify the TS_TST_INFO
   * object of the context. Return values: !0 (processed), 0 (error, it must
   * set the status info/failure info of the response).
   */
  typedef int (*TS_extension_cb) (struct TS_resp_ctx *, X509_EXTENSION *,
                                  void *);
  
  typedef struct TS_resp_ctx TS_RESP_CTX;
  
  DEFINE_STACK_OF_CONST(EVP_MD)
  
  /* Creates a response context that can be used for generating responses. */
  TS_RESP_CTX *TS_RESP_CTX_new(void);
  void TS_RESP_CTX_free(TS_RESP_CTX *ctx);
  
  /* This parameter must be set. */
  int TS_RESP_CTX_set_signer_cert(TS_RESP_CTX *ctx, X509 *signer);
  
  /* This parameter must be set. */
  int TS_RESP_CTX_set_signer_key(TS_RESP_CTX *ctx, EVP_PKEY *key);
  
  int TS_RESP_CTX_set_signer_digest(TS_RESP_CTX *ctx,
                                    const EVP_MD *signer_digest);
  
  /* This parameter must be set. */
  int TS_RESP_CTX_set_def_policy(TS_RESP_CTX *ctx, const ASN1_OBJECT *def_policy);
  
  /* No additional certs are included in the response by default. */
  int TS_RESP_CTX_set_certs(TS_RESP_CTX *ctx, STACK_OF(X509) *certs);
  
  /*
   * Adds a new acceptable policy, only the default policy is accepted by
   * default.
   */
  int TS_RESP_CTX_add_policy(TS_RESP_CTX *ctx, const ASN1_OBJECT *policy);
  
  /*
   * Adds a new acceptable message digest. Note that no message digests are
   * accepted by default. The md argument is shared with the caller.
   */
  int TS_RESP_CTX_add_md(TS_RESP_CTX *ctx, const EVP_MD *md);
  
  /* Accuracy is not included by default. */
  int TS_RESP_CTX_set_accuracy(TS_RESP_CTX *ctx,
                               int secs, int millis, int micros);
  
  /*
   * Clock precision digits, i.e. the number of decimal digits: '0' means sec,
   * '3' msec, '6' usec, and so on. Default is 0.
   */
  int TS_RESP_CTX_set_clock_precision_digits(TS_RESP_CTX *ctx,
                                             unsigned clock_precision_digits);
  /* At most we accept usec precision. */
  # define TS_MAX_CLOCK_PRECISION_DIGITS   6
  
  /* Maximum status message length */
  # define TS_MAX_STATUS_LENGTH   (1024 * 1024)
  
  /* No flags are set by default. */
  void TS_RESP_CTX_add_flags(TS_RESP_CTX *ctx, int flags);
  
  /* Default callback always returns a constant. */
  void TS_RESP_CTX_set_serial_cb(TS_RESP_CTX *ctx, TS_serial_cb cb, void *data);
  
  /* Default callback uses the gettimeofday() and gmtime() system calls. */
  void TS_RESP_CTX_set_time_cb(TS_RESP_CTX *ctx, TS_time_cb cb, void *data);
  
  /*
   * Default callback rejects all extensions. The extension callback is called
   * when the TS_TST_INFO object is already set up and not signed yet.
   */
  /* FIXME: extension handling is not tested yet. */
  void TS_RESP_CTX_set_extension_cb(TS_RESP_CTX *ctx,
                                    TS_extension_cb cb, void *data);
  
  /* The following methods can be used in the callbacks. */
  int TS_RESP_CTX_set_status_info(TS_RESP_CTX *ctx,
                                  int status, const char *text);
  
  /* Sets the status info only if it is still TS_STATUS_GRANTED. */
  int TS_RESP_CTX_set_status_info_cond(TS_RESP_CTX *ctx,
                                       int status, const char *text);
  
  int TS_RESP_CTX_add_failure_info(TS_RESP_CTX *ctx, int failure);
  
  /* The get methods below can be used in the extension callback. */
  TS_REQ *TS_RESP_CTX_get_request(TS_RESP_CTX *ctx);
  
  TS_TST_INFO *TS_RESP_CTX_get_tst_info(TS_RESP_CTX *ctx);
  
  /*
   * Creates the signed TS_TST_INFO and puts it in TS_RESP.
   * In case of errors it sets the status info properly.
   * Returns NULL only in case of memory allocation/fatal error.
   */
  TS_RESP *TS_RESP_create_response(TS_RESP_CTX *ctx, BIO *req_bio);
  
  /*
   * Declarations related to response verification,
   * they are defined in ts/ts_resp_verify.c.
   */
  
  int TS_RESP_verify_signature(PKCS7 *token, STACK_OF(X509) *certs,
                               X509_STORE *store, X509 **signer_out);
  
  /* Context structure for the generic verify method. */
  
  /* Verify the signer's certificate and the signature of the response. */
  # define TS_VFY_SIGNATURE        (1u << 0)
  /* Verify the version number of the response. */
  # define TS_VFY_VERSION          (1u << 1)
  /* Verify if the policy supplied by the user matches the policy of the TSA. */
  # define TS_VFY_POLICY           (1u << 2)
  /*
   * Verify the message imprint provided by the user. This flag should not be
   * specified with TS_VFY_DATA.
   */
  # define TS_VFY_IMPRINT          (1u << 3)
  /*
   * Verify the message imprint computed by the verify method from the user
   * provided data and the MD algorithm of the response. This flag should not
   * be specified with TS_VFY_IMPRINT.
   */
  # define TS_VFY_DATA             (1u << 4)
  /* Verify the nonce value. */
  # define TS_VFY_NONCE            (1u << 5)
  /* Verify if the TSA name field matches the signer certificate. */
  # define TS_VFY_SIGNER           (1u << 6)
  /* Verify if the TSA name field equals to the user provided name. */
  # define TS_VFY_TSA_NAME         (1u << 7)
  
  /* You can use the following convenience constants. */
  # define TS_VFY_ALL_IMPRINT      (TS_VFY_SIGNATURE       \
                                   | TS_VFY_VERSION       \
                                   | TS_VFY_POLICY        \
                                   | TS_VFY_IMPRINT       \
                                   | TS_VFY_NONCE         \
                                   | TS_VFY_SIGNER        \
                                   | TS_VFY_TSA_NAME)
  # define TS_VFY_ALL_DATA         (TS_VFY_SIGNATURE       \
                                   | TS_VFY_VERSION       \
                                   | TS_VFY_POLICY        \
                                   | TS_VFY_DATA          \
                                   | TS_VFY_NONCE         \
                                   | TS_VFY_SIGNER        \
                                   | TS_VFY_TSA_NAME)
  
  typedef struct TS_verify_ctx TS_VERIFY_CTX;
  
  int TS_RESP_verify_response(TS_VERIFY_CTX *ctx, TS_RESP *response);
  int TS_RESP_verify_token(TS_VERIFY_CTX *ctx, PKCS7 *token);
  
  /*
   * Declarations related to response verification context,
   */
  TS_VERIFY_CTX *TS_VERIFY_CTX_new(void);
  void TS_VERIFY_CTX_init(TS_VERIFY_CTX *ctx);
  void TS_VERIFY_CTX_free(TS_VERIFY_CTX *ctx);
  void TS_VERIFY_CTX_cleanup(TS_VERIFY_CTX *ctx);
  int TS_VERIFY_CTX_set_flags(TS_VERIFY_CTX *ctx, int f);
  int TS_VERIFY_CTX_add_flags(TS_VERIFY_CTX *ctx, int f);
  BIO *TS_VERIFY_CTX_set_data(TS_VERIFY_CTX *ctx, BIO *b);
  unsigned char *TS_VERIFY_CTX_set_imprint(TS_VERIFY_CTX *ctx,
                                           unsigned char *hexstr, long len);
  X509_STORE *TS_VERIFY_CTX_set_store(TS_VERIFY_CTX *ctx, X509_STORE *s);
  STACK_OF(X509) *TS_VERIFY_CTS_set_certs(TS_VERIFY_CTX *ctx, STACK_OF(X509) *certs);
  
  /*-
   * If ctx is NULL, it allocates and returns a new object, otherwise
   * it returns ctx. It initialises all the members as follows:
   * flags = TS_VFY_ALL_IMPRINT & ~(TS_VFY_TSA_NAME | TS_VFY_SIGNATURE)
   * certs = NULL
   * store = NULL
   * policy = policy from the request or NULL if absent (in this case
   *      TS_VFY_POLICY is cleared from flags as well)
   * md_alg = MD algorithm from request
   * imprint, imprint_len = imprint from request
   * data = NULL
   * nonce, nonce_len = nonce from the request or NULL if absent (in this case
   *      TS_VFY_NONCE is cleared from flags as well)
   * tsa_name = NULL
   * Important: after calling this method TS_VFY_SIGNATURE should be added!
   */
  TS_VERIFY_CTX *TS_REQ_to_TS_VERIFY_CTX(TS_REQ *req, TS_VERIFY_CTX *ctx);
  
  /* Function declarations for TS_RESP defined in ts/ts_resp_print.c */
  
  int TS_RESP_print_bio(BIO *bio, TS_RESP *a);
  int TS_STATUS_INFO_print_bio(BIO *bio, TS_STATUS_INFO *a);
  int TS_TST_INFO_print_bio(BIO *bio, TS_TST_INFO *a);
  
  /* Common utility functions defined in ts/ts_lib.c */
  
  int TS_ASN1_INTEGER_print_bio(BIO *bio, const ASN1_INTEGER *num);
  int TS_OBJ_print_bio(BIO *bio, const ASN1_OBJECT *obj);
  int TS_ext_print_bio(BIO *bio, const STACK_OF(X509_EXTENSION) *extensions);
  int TS_X509_ALGOR_print_bio(BIO *bio, const X509_ALGOR *alg);
  int TS_MSG_IMPRINT_print_bio(BIO *bio, TS_MSG_IMPRINT *msg);
  
  /*
   * Function declarations for handling configuration options, defined in
   * ts/ts_conf.c
   */
  
  X509 *TS_CONF_load_cert(const char *file);
  STACK_OF(X509) *TS_CONF_load_certs(const char *file);
  EVP_PKEY *TS_CONF_load_key(const char *file, const char *pass);
  const char *TS_CONF_get_tsa_section(CONF *conf, const char *section);
  int TS_CONF_set_serial(CONF *conf, const char *section, TS_serial_cb cb,
                         TS_RESP_CTX *ctx);
  #ifndef OPENSSL_NO_ENGINE
  int TS_CONF_set_crypto_device(CONF *conf, const char *section,
                                const char *device);
  int TS_CONF_set_default_engine(const char *name);
  #endif
  int TS_CONF_set_signer_cert(CONF *conf, const char *section,
                              const char *cert, TS_RESP_CTX *ctx);
  int TS_CONF_set_certs(CONF *conf, const char *section, const char *certs,
                        TS_RESP_CTX *ctx);
  int TS_CONF_set_signer_key(CONF *conf, const char *section,
                             const char *key, const char *pass,
                             TS_RESP_CTX *ctx);
  int TS_CONF_set_signer_digest(CONF *conf, const char *section,
                                 const char *md, TS_RESP_CTX *ctx);
  int TS_CONF_set_def_policy(CONF *conf, const char *section,
                             const char *policy, TS_RESP_CTX *ctx);
  int TS_CONF_set_policies(CONF *conf, const char *section, TS_RESP_CTX *ctx);
  int TS_CONF_set_digests(CONF *conf, const char *section, TS_RESP_CTX *ctx);
  int TS_CONF_set_accuracy(CONF *conf, const char *section, TS_RESP_CTX *ctx);
  int TS_CONF_set_clock_precision_digits(CONF *conf, const char *section,
                                         TS_RESP_CTX *ctx);
  int TS_CONF_set_ordering(CONF *conf, const char *section, TS_RESP_CTX *ctx);
  int TS_CONF_set_tsa_name(CONF *conf, const char *section, TS_RESP_CTX *ctx);
  int TS_CONF_set_ess_cert_id_chain(CONF *conf, const char *section,
                                    TS_RESP_CTX *ctx);
  
  /* -------------------------------------------------- */
  /* 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.
   */
  
  int ERR_load_TS_strings(void);
  
  /* Error codes for the TS functions. */
  
  /* Function codes. */
  # define TS_F_DEF_SERIAL_CB                               110
  # define TS_F_DEF_TIME_CB                                 111
  # define TS_F_ESS_ADD_SIGNING_CERT                        112
  # define TS_F_ESS_CERT_ID_NEW_INIT                        113
  # define TS_F_ESS_SIGNING_CERT_NEW_INIT                   114
  # define TS_F_INT_TS_RESP_VERIFY_TOKEN                    149
  # define TS_F_PKCS7_TO_TS_TST_INFO                        148
  # define TS_F_TS_ACCURACY_SET_MICROS                      115
  # define TS_F_TS_ACCURACY_SET_MILLIS                      116
  # define TS_F_TS_ACCURACY_SET_SECONDS                     117
  # define TS_F_TS_CHECK_IMPRINTS                           100
  # define TS_F_TS_CHECK_NONCES                             101
  # define TS_F_TS_CHECK_POLICY                             102
  # define TS_F_TS_CHECK_SIGNING_CERTS                      103
  # define TS_F_TS_CHECK_STATUS_INFO                        104
  # define TS_F_TS_COMPUTE_IMPRINT                          145
  # define TS_F_TS_CONF_INVALID                             151
  # define TS_F_TS_CONF_LOAD_CERT                           153
  # define TS_F_TS_CONF_LOAD_CERTS                          154
  # define TS_F_TS_CONF_LOAD_KEY                            155
  # define TS_F_TS_CONF_LOOKUP_FAIL                         152
  # define TS_F_TS_CONF_SET_DEFAULT_ENGINE                  146
  # define TS_F_TS_GET_STATUS_TEXT                          105
  # define TS_F_TS_MSG_IMPRINT_SET_ALGO                     118
  # define TS_F_TS_REQ_SET_MSG_IMPRINT                      119
  # define TS_F_TS_REQ_SET_NONCE                            120
  # define TS_F_TS_REQ_SET_POLICY_ID                        121
  # define TS_F_TS_RESP_CREATE_RESPONSE                     122
  # define TS_F_TS_RESP_CREATE_TST_INFO                     123
  # define TS_F_TS_RESP_CTX_ADD_FAILURE_INFO                124
  # define TS_F_TS_RESP_CTX_ADD_MD                          125
  # define TS_F_TS_RESP_CTX_ADD_POLICY                      126
  # define TS_F_TS_RESP_CTX_NEW                             127
  # define TS_F_TS_RESP_CTX_SET_ACCURACY                    128
  # define TS_F_TS_RESP_CTX_SET_CERTS                       129
  # define TS_F_TS_RESP_CTX_SET_DEF_POLICY                  130
  # define TS_F_TS_RESP_CTX_SET_SIGNER_CERT                 131
  # define TS_F_TS_RESP_CTX_SET_STATUS_INFO                 132
  # define TS_F_TS_RESP_GET_POLICY                          133
  # define TS_F_TS_RESP_SET_GENTIME_WITH_PRECISION          134
  # define TS_F_TS_RESP_SET_STATUS_INFO                     135
  # define TS_F_TS_RESP_SET_TST_INFO                        150
  # define TS_F_TS_RESP_SIGN                                136
  # define TS_F_TS_RESP_VERIFY_SIGNATURE                    106
  # define TS_F_TS_TST_INFO_SET_ACCURACY                    137
  # define TS_F_TS_TST_INFO_SET_MSG_IMPRINT                 138
  # define TS_F_TS_TST_INFO_SET_NONCE                       139
  # define TS_F_TS_TST_INFO_SET_POLICY_ID                   140
  # define TS_F_TS_TST_INFO_SET_SERIAL                      141
  # define TS_F_TS_TST_INFO_SET_TIME                        142
  # define TS_F_TS_TST_INFO_SET_TSA                         143
  # define TS_F_TS_VERIFY                                   108
  # define TS_F_TS_VERIFY_CERT                              109
  # define TS_F_TS_VERIFY_CTX_NEW                           144
  
  /* Reason codes. */
  # define TS_R_BAD_PKCS7_TYPE                              132
  # define TS_R_BAD_TYPE                                    133
  # define TS_R_CANNOT_LOAD_CERT                            137
  # define TS_R_CANNOT_LOAD_KEY                             138
  # define TS_R_CERTIFICATE_VERIFY_ERROR                    100
  # define TS_R_COULD_NOT_SET_ENGINE                        127
  # define TS_R_COULD_NOT_SET_TIME                          115
  # define TS_R_DETACHED_CONTENT                            134
  # define TS_R_ESS_ADD_SIGNING_CERT_ERROR                  116
  # define TS_R_ESS_SIGNING_CERTIFICATE_ERROR               101
  # define TS_R_INVALID_NULL_POINTER                        102
  # define TS_R_INVALID_SIGNER_CERTIFICATE_PURPOSE          117
  # define TS_R_MESSAGE_IMPRINT_MISMATCH                    103
  # define TS_R_NONCE_MISMATCH                              104
  # define TS_R_NONCE_NOT_RETURNED                          105
  # define TS_R_NO_CONTENT                                  106
  # define TS_R_NO_TIME_STAMP_TOKEN                         107
  # define TS_R_PKCS7_ADD_SIGNATURE_ERROR                   118
  # define TS_R_PKCS7_ADD_SIGNED_ATTR_ERROR                 119
  # define TS_R_PKCS7_TO_TS_TST_INFO_FAILED                 129
  # define TS_R_POLICY_MISMATCH                             108
  # define TS_R_PRIVATE_KEY_DOES_NOT_MATCH_CERTIFICATE      120
  # define TS_R_RESPONSE_SETUP_ERROR                        121
  # define TS_R_SIGNATURE_FAILURE                           109
  # define TS_R_THERE_MUST_BE_ONE_SIGNER                    110
  # define TS_R_TIME_SYSCALL_ERROR                          122
  # define TS_R_TOKEN_NOT_PRESENT                           130
  # define TS_R_TOKEN_PRESENT                               131
  # define TS_R_TSA_NAME_MISMATCH                           111
  # define TS_R_TSA_UNTRUSTED                               112
  # define TS_R_TST_INFO_SETUP_ERROR                        123
  # define TS_R_TS_DATASIGN                                 124
  # define TS_R_UNACCEPTABLE_POLICY                         125
  # define TS_R_UNSUPPORTED_MD_ALGORITHM                    126
  # define TS_R_UNSUPPORTED_VERSION                         113
  # define TS_R_VAR_BAD_VALUE                               135
  # define TS_R_VAR_LOOKUP_FAILURE                          136
  # define TS_R_WRONG_CONTENT_TYPE                          114
  
  #  ifdef  __cplusplus
  }
  #  endif
  # endif
  #endif
  