[exim.git] / src / src / tlscert-openssl.c

/*************************************************
*     Exim - an Internet mail transport agent    *
*************************************************/

/* Copyright (c) Jeremy Harris 2014 */

/* This module provides TLS (aka SSL) support for Exim using the OpenSSL
library. It is #included into the tls.c file when that library is used.
*/


/* Heading stuff */

#include <openssl/lhash.h>
#include <openssl/ssl.h>
#include <openssl/err.h>
#include <openssl/rand.h>
#include <openssl/x509v3.h>


/*****************************************************
*  Export/import a certificate, binary/printable
*****************************************************/
int
tls_export_cert(uschar * buf, size_t buflen, void * cert)
{
BIO * bp = BIO_new(BIO_s_mem());
int fail;

if ((fail = PEM_write_bio_X509(bp, (X509 *)cert) ? 0 : 1))
  log_write(0, LOG_MAIN, "TLS error in certificate export: %s",
    ERR_error_string(ERR_get_error(), NULL));
else
  {
  char * cp = CS buf;
  int n;
  buflen -= 2;
  for(;;)
    {
    if ((n = BIO_gets(bp, cp, (int)buflen)) <= 0) break;
    cp += n+1;
    buflen -= n+1;
    cp[-2] = '\\'; cp[-1] = 'n'; /* newline->"\n" */
    }				 /* compat with string_printing() */
  *cp = '\0';
  }

BIO_free(bp);
return fail;
}

int
tls_import_cert(const uschar * buf, void ** cert)
{
void * reset_point = store_get(0);
const uschar * cp = string_unprinting(US buf);
BIO * bp;
X509 * x;

bp = BIO_new_mem_buf(US cp, -1);
x = PEM_read_bio_X509(bp, NULL, 0, NULL);
int fail = 0;
if (!x)
  fail = 1;
else
  *cert = (void *)x;
BIO_free(bp);
store_reset(reset_point);
return fail;
}

void
tls_free_cert(void * cert)
{
X509_free((X509 *)cert);
}

/*****************************************************
*  Certificate field extraction routines
*****************************************************/
static uschar *
bio_string_copy(BIO * bp, int len)
{
uschar * cp = US"";
len = len > 0 ? (int) BIO_get_mem_data(bp, &cp) : 0;
cp = string_copyn(cp, len);
BIO_free(bp);
return cp;
}

static uschar *
asn1_time_copy(const ASN1_TIME * time)
{
BIO * bp = BIO_new(BIO_s_mem());
int len = ASN1_TIME_print(bp, time);
return bio_string_copy(bp, len);
}

static uschar *
x509_name_copy(X509_NAME * name)
{
BIO * bp = BIO_new(BIO_s_mem());
int len_good =
  X509_NAME_print_ex(bp, name, 0, XN_FLAG_RFC2253) >= 0
  ? 1 : 0;
return bio_string_copy(bp, len_good);
}

/**/

uschar *
tls_cert_issuer(void * cert, uschar * mod)
{
return x509_name_copy(X509_get_issuer_name((X509 *)cert));
}

uschar *
tls_cert_not_before(void * cert, uschar * mod)
{
return asn1_time_copy(X509_get_notBefore((X509 *)cert));
}

uschar *
tls_cert_not_after(void * cert, uschar * mod)
{
return asn1_time_copy(X509_get_notAfter((X509 *)cert));
}

uschar *
tls_cert_serial_number(void * cert, uschar * mod)
{
uschar txt[256];
BIO * bp = BIO_new(BIO_s_mem());
int len = i2a_ASN1_INTEGER(bp, X509_get_serialNumber((X509 *)cert));

if (len < sizeof(txt))
  BIO_read(bp, txt, len);
else
  len = 0;
BIO_free(bp);
return string_copynlc(txt, len);	/* lowercase */
}

uschar *
tls_cert_signature(void * cert, uschar * mod)
{
BIO * bp = BIO_new(BIO_s_mem());
uschar * cp = NULL;

if (X509_print_ex(bp, (X509 *)cert, 0,
  X509_FLAG_NO_HEADER | X509_FLAG_NO_VERSION | X509_FLAG_NO_SERIAL | 
  X509_FLAG_NO_SIGNAME | X509_FLAG_NO_ISSUER | X509_FLAG_NO_VALIDITY | 
  X509_FLAG_NO_SUBJECT | X509_FLAG_NO_PUBKEY | X509_FLAG_NO_EXTENSIONS | 
  /* X509_FLAG_NO_SIGDUMP is the missing one */
  X509_FLAG_NO_AUX) == 1)
  {
  long len = BIO_get_mem_data(bp, &cp);
  cp = string_copyn(cp, len);
  }
BIO_free(bp);
return cp;
}

uschar *
tls_cert_signature_algorithm(void * cert, uschar * mod)
{
return string_copy(US OBJ_nid2ln(X509_get_signature_type((X509 *)cert)));
}

uschar *
tls_cert_subject(void * cert, uschar * mod)
{
return x509_name_copy(X509_get_subject_name((X509 *)cert));
}

uschar *
tls_cert_version(void * cert, uschar * mod)
{
return string_sprintf("%d", X509_get_version((X509 *)cert));
}

uschar *
tls_cert_ext_by_oid(void * cert, uschar * oid, int idx)
{
int nid = OBJ_create(CS oid, "", "");
int nidx = X509_get_ext_by_NID((X509 *)cert, nid, idx);
X509_EXTENSION * ex = X509_get_ext((X509 *)cert, nidx);
ASN1_OCTET_STRING * adata = X509_EXTENSION_get_data(ex);
BIO * bp = BIO_new(BIO_s_mem());
long len;
uschar * cp1;
uschar * cp2;
uschar * cp3;

M_ASN1_OCTET_STRING_print(bp, adata);
/* binary data, DER encoded */

/* just dump for now */
len = BIO_get_mem_data(bp, &cp1);
cp3 = cp2 = store_get(len*3+1);

while(len)
  {
  sprintf(CS cp2, "%.2x ", *cp1++);
  cp2 += 3;
  len--;
  }
cp2[-1] = '\0';

return cp3;
}

uschar *
tls_cert_subject_altname(void * cert, uschar * mod)
{
uschar * list = NULL;
STACK_OF(GENERAL_NAME) * san = (STACK_OF(GENERAL_NAME) *)
  X509_get_ext_d2i((X509 *)cert, NID_subject_alt_name, NULL, NULL);
uschar sep = '\n';
uschar * tag = US"";
uschar * ele;
int match = -1;

if (!san) return NULL;

while (mod)
  {
  if (*mod == '>' && *++mod) sep = *mod++;
  else if (Ustrcmp(mod, "dns")==0) { match = GEN_DNS; mod += 3; }
  else if (Ustrcmp(mod, "uri")==0) { match = GEN_URI; mod += 3; }
  else if (Ustrcmp(mod, "mail")==0) { match = GEN_EMAIL; mod += 4; }
  else continue;

  if (*mod++ != ',')
    break;
  }

while (sk_GENERAL_NAME_num(san) > 0)
  {
  GENERAL_NAME * namePart = sk_GENERAL_NAME_pop(san);
  if (match != -1 && match != namePart->type)
    continue;
  switch (namePart->type)
    {
    case GEN_DNS:
      tag = US"DNS";
      ele = ASN1_STRING_data(namePart->d.dNSName);
      break;
    case GEN_URI:
      tag = US"URI";
      ele = ASN1_STRING_data(namePart->d.uniformResourceIdentifier);
      break;
    case GEN_EMAIL:
      tag = US"MAIL";
      ele = ASN1_STRING_data(namePart->d.rfc822Name);
      break;
    default:
      continue;	/* ignore unrecognised types */
    }
  list = string_append_listele(list, sep,
	  match == -1 ? string_sprintf("%s=%s", tag, ele) : ele);
  }

sk_GENERAL_NAME_free(san);
return list;
}

uschar *
tls_cert_ocsp_uri(void * cert, uschar * mod)
{
STACK_OF(ACCESS_DESCRIPTION) * ads = (STACK_OF(ACCESS_DESCRIPTION) *)
  X509_get_ext_d2i((X509 *)cert, NID_info_access, NULL, NULL);
int adsnum = sk_ACCESS_DESCRIPTION_num(ads);
int i;
uschar sep = '\n';
uschar * list = NULL;

if (mod)
  if (*mod == '>' && *++mod) sep = *mod++;

for (i = 0; i < adsnum; i++)
  {
  ACCESS_DESCRIPTION * ad = sk_ACCESS_DESCRIPTION_value(ads, i);

  if (ad && OBJ_obj2nid(ad->method) == NID_ad_OCSP)
    list = string_append_listele(list, sep,
	      ASN1_STRING_data(ad->location->d.ia5));
  }
return list;
}

uschar *
tls_cert_crl_uri(void * cert, uschar * mod)
{
STACK_OF(DIST_POINT) * dps = (STACK_OF(DIST_POINT) *)
  X509_get_ext_d2i((X509 *)cert,  NID_crl_distribution_points,
    NULL, NULL);
DIST_POINT * dp;
int dpsnum = sk_DIST_POINT_num(dps);
int i;
uschar sep = '\n';
uschar * list = NULL;

if (mod)
  if (*mod == '>' && *++mod) sep = *mod++;

if (dps) for (i = 0; i < dpsnum; i++)
  if ((dp = sk_DIST_POINT_value(dps, i)))
    {
    STACK_OF(GENERAL_NAME) * names = dp->distpoint->name.fullname;
    GENERAL_NAME * np;
    int nnum = sk_GENERAL_NAME_num(names);
    int j;

    for (j = 0; j < nnum; j++)
      if (  (np = sk_GENERAL_NAME_value(names, j))
	 && np->type == GEN_URI
	 )
	list = string_append_listele(list, sep,
		ASN1_STRING_data(np->d.uniformResourceIdentifier));
    }
return list;
}


/*****************************************************
*  Certificate operator routines
*****************************************************/
static uschar *
fingerprint(X509 * cert, const EVP_MD * fdig)
{
int j;
unsigned int n;
uschar md[EVP_MAX_MD_SIZE];
uschar * cp;

if (!X509_digest(cert,fdig,md,&n))
  {
  expand_string_message = US"tls_cert_fprt: out of mem\n";
  return NULL;
  }
cp = store_get(n*2+1);
for (j = 0; j < (int)n; j++) sprintf(CS cp+2*j, "%02X", md[j]);
return(cp);
}

uschar * 
tls_cert_fprt_md5(void * cert)
{
return fingerprint((X509 *)cert, EVP_md5());
}

uschar * 
tls_cert_fprt_sha1(void * cert)
{
return fingerprint((X509 *)cert, EVP_sha1());
}

uschar * 
tls_cert_fprt_sha256(void * cert)
{
return fingerprint((X509 *)cert, EVP_sha256());
}


/* vi: aw ai sw=2
*/
/* End of tlscert-openssl.c */
Commit	Line	Data
9d1c15ef JH	1	/*************************************************
	2	* Exim - an Internet mail transport agent *
	3	*************************************************/
	4
	5	/* Copyright (c) Jeremy Harris 2014 */
	6
	7	/* This module provides TLS (aka SSL) support for Exim using the OpenSSL
	8	library. It is #included into the tls.c file when that library is used.
	9	*/
	10
	11
	12	/* Heading stuff */
	13
	14	#include <openssl/lhash.h>
	15	#include <openssl/ssl.h>
	16	#include <openssl/err.h>
	17	#include <openssl/rand.h>
51424d08	18	#include <openssl/x509v3.h>
9d1c15ef JH	19
	20
	21	/*****************************************************
	22	* Export/import a certificate, binary/printable
	23	*****************************************************/
	24	int
	25	tls_export_cert(uschar * buf, size_t buflen, void * cert)
	26	{
	27	BIO * bp = BIO_new(BIO_s_mem());
	28	int fail;
	29
	30	if ((fail = PEM_write_bio_X509(bp, (X509 *)cert) ? 0 : 1))
	31	log_write(0, LOG_MAIN, "TLS error in certificate export: %s",
	32	ERR_error_string(ERR_get_error(), NULL));
	33	else
	34	{
	35	char * cp = CS buf;
	36	int n;
	37	buflen -= 2;
	38	for(;;)
	39	{
	40	if ((n = BIO_gets(bp, cp, (int)buflen)) <= 0) break;
	41	cp += n+1;
	42	buflen -= n+1;
	43	cp[-2] = '\\'; cp[-1] = 'n'; /* newline->"\n" */
	44	} /* compat with string_printing() */
	45	*cp = '\0';
	46	}
	47
	48	BIO_free(bp);
	49	return fail;
	50	}
	51
	52	int
	53	tls_import_cert(const uschar * buf, void ** cert)
	54	{
	55	void * reset_point = store_get(0);
	56	const uschar * cp = string_unprinting(US buf);
	57	BIO * bp;
	58	X509 * x;
	59
	60	bp = BIO_new_mem_buf(US cp, -1);
	61	x = PEM_read_bio_X509(bp, NULL, 0, NULL);
	62	int fail = 0;
	63	if (!x)
	64	fail = 1;
	65	else
	66	cert = (void )x;
	67	BIO_free(bp);
	68	store_reset(reset_point);
	69	return fail;
	70	}
	71
	72	void
	73	tls_free_cert(void * cert)
	74	{
	75	X509_free((X509 *)cert);
	76	}
	77
	78	/*****************************************************
	79	* Certificate field extraction routines
	80	*****************************************************/
	81	static uschar *
	82	bio_string_copy(BIO * bp, int len)
83	{
e3dd1d67	84	uschar * cp = US"";
9d1c15ef JH	85	len = len > 0 ? (int) BIO_get_mem_data(bp, &cp) : 0;
	86	cp = string_copyn(cp, len);
	87	BIO_free(bp);
	88	return cp;
	89	}
	90
	91	static uschar *
	92	asn1_time_copy(const ASN1_TIME * time)
	93	{
	94	BIO * bp = BIO_new(BIO_s_mem());
	95	int len = ASN1_TIME_print(bp, time);
	96	return bio_string_copy(bp, len);
	97	}
	98
	99	static uschar *
	100	x509_name_copy(X509_NAME * name)
	101	{
	102	BIO * bp = BIO_new(BIO_s_mem());
	103	int len_good =
	104	X509_NAME_print_ex(bp, name, 0, XN_FLAG_RFC2253) >= 0
	105	? 1 : 0;
	106	return bio_string_copy(bp, len_good);
	107	}
	108
	109	/**/
	110
	111	uschar *
9e4dddbd	112	tls_cert_issuer(void * cert, uschar * mod)
9d1c15ef JH	113	{
	114	return x509_name_copy(X509_get_issuer_name((X509 *)cert));
	115	}
	116
	117	uschar *
9e4dddbd	118	tls_cert_not_before(void * cert, uschar * mod)
9d1c15ef JH	119	{
	120	return asn1_time_copy(X509_get_notBefore((X509 *)cert));
	121	}
	122
	123	uschar *
9e4dddbd	124	tls_cert_not_after(void * cert, uschar * mod)
9d1c15ef JH	125	{
	126	return asn1_time_copy(X509_get_notAfter((X509 *)cert));
	127	}
	128
	129	uschar *
9e4dddbd	130	tls_cert_serial_number(void * cert, uschar * mod)
9d1c15ef JH	131	{
	132	uschar txt[256];
	133	BIO * bp = BIO_new(BIO_s_mem());
	134	int len = i2a_ASN1_INTEGER(bp, X509_get_serialNumber((X509 *)cert));
	135
	136	if (len < sizeof(txt))
	137	BIO_read(bp, txt, len);
	138	else
	139	len = 0;
	140	BIO_free(bp);
	141	return string_copynlc(txt, len); /* lowercase */
	142	}
	143
	144	uschar *
9e4dddbd	145	tls_cert_signature(void * cert, uschar * mod)
9d1c15ef JH	146	{
	147	BIO * bp = BIO_new(BIO_s_mem());
	148	uschar * cp = NULL;
	149
	150	if (X509_print_ex(bp, (X509 *)cert, 0,
	151	X509_FLAG_NO_HEADER \| X509_FLAG_NO_VERSION \| X509_FLAG_NO_SERIAL \|
	152	X509_FLAG_NO_SIGNAME \| X509_FLAG_NO_ISSUER \| X509_FLAG_NO_VALIDITY \|
	153	X509_FLAG_NO_SUBJECT \| X509_FLAG_NO_PUBKEY \| X509_FLAG_NO_EXTENSIONS \|
	154	/* X509_FLAG_NO_SIGDUMP is the missing one */
	155	X509_FLAG_NO_AUX) == 1)
	156	{
	157	long len = BIO_get_mem_data(bp, &cp);
	158	cp = string_copyn(cp, len);
	159	}
	160	BIO_free(bp);
	161	return cp;
	162	}
	163
	164	uschar *
9e4dddbd	165	tls_cert_signature_algorithm(void * cert, uschar * mod)
9d1c15ef	166	{
e3dd1d67	167	return string_copy(US OBJ_nid2ln(X509_get_signature_type((X509 *)cert)));
9d1c15ef JH	168	}
	169
	170	uschar *
9e4dddbd	171	tls_cert_subject(void * cert, uschar * mod)
9d1c15ef JH	172	{
	173	return x509_name_copy(X509_get_subject_name((X509 *)cert));
	174	}
	175
	176	uschar *
9e4dddbd	177	tls_cert_version(void * cert, uschar * mod)
9d1c15ef JH	178	{
	179	return string_sprintf("%d", X509_get_version((X509 *)cert));
	180	}
	181
	182	uschar *
	183	tls_cert_ext_by_oid(void * cert, uschar * oid, int idx)
	184	{
e3dd1d67	185	int nid = OBJ_create(CS oid, "", "");
9d1c15ef JH	186	int nidx = X509_get_ext_by_NID((X509 *)cert, nid, idx);
	187	X509_EXTENSION * ex = X509_get_ext((X509 *)cert, nidx);
	188	ASN1_OCTET_STRING * adata = X509_EXTENSION_get_data(ex);
	189	BIO * bp = BIO_new(BIO_s_mem());
	190	long len;
	191	uschar * cp1;
	192	uschar * cp2;
	193	uschar * cp3;
	194
	195	M_ASN1_OCTET_STRING_print(bp, adata);
	196	/* binary data, DER encoded */
	197
	198	/* just dump for now */
	199	len = BIO_get_mem_data(bp, &cp1);
	200	cp3 = cp2 = store_get(len*3+1);
	201
	202	while(len)
	203	{
e3dd1d67	204	sprintf(CS cp2, "%.2x ", *cp1++);
9d1c15ef JH	205	cp2 += 3;
	206	len--;
	207	}
	208	cp2[-1] = '\0';
	209
	210	return cp3;
	211	}
	212
	213	uschar *
9e4dddbd	214	tls_cert_subject_altname(void * cert, uschar * mod)
9d1c15ef	215	{
9e4dddbd	216	uschar * list = NULL;
9d1c15ef JH	217	STACK_OF(GENERAL_NAME) * san = (STACK_OF(GENERAL_NAME) *)
9d1c15ef JH	218	X509_get_ext_d2i((X509 *)cert, NID_subject_alt_name, NULL, NULL);
9e4dddbd JH	219	uschar sep = '\n';
	220	uschar * tag = US"";
	221	uschar * ele;
	222	int match = -1;
9d1c15ef JH	223
	224	if (!san) return NULL;
	225
9e4dddbd JH	226	while (mod)
	227	{
	228	if (mod == '>' && ++mod) sep = *mod++;
	229	else if (Ustrcmp(mod, "dns")==0) { match = GEN_DNS; mod += 3; }
	230	else if (Ustrcmp(mod, "uri")==0) { match = GEN_URI; mod += 3; }
	231	else if (Ustrcmp(mod, "mail")==0) { match = GEN_EMAIL; mod += 4; }
	232	else continue;
	233
	234	if (*mod++ != ',')
	235	break;
	236	}
	237
9d1c15ef JH	238	while (sk_GENERAL_NAME_num(san) > 0)
	239	{
	240	GENERAL_NAME * namePart = sk_GENERAL_NAME_pop(san);
9e4dddbd JH	241	if (match != -1 && match != namePart->type)
9e4dddbd JH	242	continue;
9d1c15ef JH	243	switch (namePart->type)
9d1c15ef JH	244	{
9e4dddbd JH	245	case GEN_DNS:
	246	tag = US"DNS";
	247	ele = ASN1_STRING_data(namePart->d.dNSName);
	248	break;
9d1c15ef	249	case GEN_URI:
9e4dddbd JH	250	tag = US"URI";
	251	ele = ASN1_STRING_data(namePart->d.uniformResourceIdentifier);
	252	break;
9d1c15ef	253	case GEN_EMAIL:
9e4dddbd JH	254	tag = US"MAIL";
	255	ele = ASN1_STRING_data(namePart->d.rfc822Name);
	256	break;
9d1c15ef	257	default:
9e4dddbd	258	continue; /* ignore unrecognised types */
9d1c15ef	259	}
9e4dddbd JH	260	list = string_append_listele(list, sep,
9e4dddbd JH	261	match == -1 ? string_sprintf("%s=%s", tag, ele) : ele);
9d1c15ef JH	262	}
9d1c15ef JH	263
9e4dddbd JH	264	sk_GENERAL_NAME_free(san);
9e4dddbd JH	265	return list;
9d1c15ef JH	266	}
	267
	268	uschar *
9e4dddbd	269	tls_cert_ocsp_uri(void * cert, uschar * mod)
9d1c15ef JH	270	{
	271	STACK_OF(ACCESS_DESCRIPTION) * ads = (STACK_OF(ACCESS_DESCRIPTION) *)
	272	X509_get_ext_d2i((X509 *)cert, NID_info_access, NULL, NULL);
	273	int adsnum = sk_ACCESS_DESCRIPTION_num(ads);
	274	int i;
9e4dddbd JH	275	uschar sep = '\n';
	276	uschar * list = NULL;
	277
	278	if (mod)
	279	if (mod == '>' && ++mod) sep = *mod++;
9d1c15ef JH	280
	281	for (i = 0; i < adsnum; i++)
	282	{
	283	ACCESS_DESCRIPTION * ad = sk_ACCESS_DESCRIPTION_value(ads, i);
	284
	285	if (ad && OBJ_obj2nid(ad->method) == NID_ad_OCSP)
9e4dddbd JH	286	list = string_append_listele(list, sep,
9e4dddbd JH	287	ASN1_STRING_data(ad->location->d.ia5));
9d1c15ef	288	}
9e4dddbd	289	return list;
9d1c15ef JH	290	}
	291
	292	uschar *
9e4dddbd	293	tls_cert_crl_uri(void * cert, uschar * mod)
9d1c15ef JH	294	{
	295	STACK_OF(DIST_POINT) * dps = (STACK_OF(DIST_POINT) *)
	296	X509_get_ext_d2i((X509 *)cert, NID_crl_distribution_points,
	297	NULL, NULL);
	298	DIST_POINT * dp;
	299	int dpsnum = sk_DIST_POINT_num(dps);
	300	int i;
9e4dddbd JH	301	uschar sep = '\n';
	302	uschar * list = NULL;
	303
	304	if (mod)
	305	if (mod == '>' && ++mod) sep = *mod++;
9d1c15ef JH	306
	307	if (dps) for (i = 0; i < dpsnum; i++)
	308	if ((dp = sk_DIST_POINT_value(dps, i)))
	309	{
	310	STACK_OF(GENERAL_NAME) * names = dp->distpoint->name.fullname;
	311	GENERAL_NAME * np;
	312	int nnum = sk_GENERAL_NAME_num(names);
	313	int j;
	314
	315	for (j = 0; j < nnum; j++)
	316	if ( (np = sk_GENERAL_NAME_value(names, j))
	317	&& np->type == GEN_URI
	318	)
9e4dddbd JH	319	list = string_append_listele(list, sep,
9e4dddbd JH	320	ASN1_STRING_data(np->d.uniformResourceIdentifier));
9d1c15ef	321	}
9e4dddbd	322	return list;
9d1c15ef JH	323	}
9d1c15ef JH	324
6a8a60e0 JH	325
	326
	327	/*****************************************************
	328	* Certificate operator routines
	329	*****************************************************/
	330	static uschar *
	331	fingerprint(X509 * cert, const EVP_MD * fdig)
	332	{
	333	int j;
	334	unsigned int n;
	335	uschar md[EVP_MAX_MD_SIZE];
	336	uschar * cp;
	337
	338	if (!X509_digest(cert,fdig,md,&n))
	339	{
	340	expand_string_message = US"tls_cert_fprt: out of mem\n";
	341	return NULL;
	342	}
	343	cp = store_get(n*2+1);
e3dd1d67	344	for (j = 0; j < (int)n; j++) sprintf(CS cp+2*j, "%02X", md[j]);
6a8a60e0 JH	345	return(cp);
	346	}
	347
	348	uschar *
	349	tls_cert_fprt_md5(void * cert)
	350	{
	351	return fingerprint((X509 *)cert, EVP_md5());
	352	}
	353
	354	uschar *
	355	tls_cert_fprt_sha1(void * cert)
	356	{
	357	return fingerprint((X509 *)cert, EVP_sha1());
	358	}
	359
9ef9101c JH	360	uschar *
	361	tls_cert_fprt_sha256(void * cert)
	362	{
	363	return fingerprint((X509 *)cert, EVP_sha256());
	364	}
	365
6a8a60e0	366
9d1c15ef JH	367	/* vi: aw ai sw=2
	368	*/
	369	/* End of tlscert-openssl.c */