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/* $OpenBSD: common.c,v 1.5 2021/12/14 21:25:27 deraadt Exp $ */
/*
* Helpers for key API tests
*
* Placed in the public domain
*/
#include "includes.h"
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <stdio.h>
#ifdef HAVE_STDINT_H
#include <stdint.h>
#endif
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#ifdef WITH_OPENSSL
#include <openssl/bn.h>
#include <openssl/rsa.h>
#include <openssl/dsa.h>
#include <openssl/objects.h>
#ifdef OPENSSL_HAS_NISTP256
# include <openssl/ec.h>
#endif /* OPENSSL_HAS_NISTP256 */
#endif /* WITH_OPENSSL */
#include "openbsd-compat/openssl-compat.h"
#include "../test_helper/test_helper.h"
#include "ssherr.h"
#include "authfile.h"
#include "sshkey.h"
#include "sshbuf.h"
#include "common.h"
struct sshbuf *
load_file(const char *name)
{
struct sshbuf *ret = NULL;
ASSERT_INT_EQ(sshbuf_load_file(test_data_file(name), &ret), 0);
ASSERT_PTR_NE(ret, NULL);
return ret;
}
struct sshbuf *
load_text_file(const char *name)
{
struct sshbuf *ret = load_file(name);
const u_char *p;
/* Trim whitespace at EOL */
for (p = sshbuf_ptr(ret); sshbuf_len(ret) > 0;) {
if (p[sshbuf_len(ret) - 1] == '\r' ||
p[sshbuf_len(ret) - 1] == '\t' ||
p[sshbuf_len(ret) - 1] == ' ' ||
p[sshbuf_len(ret) - 1] == '\n')
ASSERT_INT_EQ(sshbuf_consume_end(ret, 1), 0);
else
break;
}
/* \0 terminate */
ASSERT_INT_EQ(sshbuf_put_u8(ret, 0), 0);
return ret;
}
#ifdef WITH_OPENSSL
BIGNUM *
load_bignum(const char *name)
{
BIGNUM *ret = NULL;
struct sshbuf *buf;
buf = load_text_file(name);
ASSERT_INT_NE(BN_hex2bn(&ret, (const char *)sshbuf_ptr(buf)), 0);
sshbuf_free(buf);
return ret;
}
const BIGNUM *
rsa_n(struct sshkey *k)
{
const BIGNUM *n = NULL;
ASSERT_PTR_NE(k, NULL);
ASSERT_PTR_NE(k->rsa, NULL);
RSA_get0_key(k->rsa, &n, NULL, NULL);
return n;
}
const BIGNUM *
rsa_e(struct sshkey *k)
{
const BIGNUM *e = NULL;
ASSERT_PTR_NE(k, NULL);
ASSERT_PTR_NE(k->rsa, NULL);
RSA_get0_key(k->rsa, NULL, &e, NULL);
return e;
}
const BIGNUM *
rsa_p(struct sshkey *k)
{
const BIGNUM *p = NULL;
ASSERT_PTR_NE(k, NULL);
ASSERT_PTR_NE(k->rsa, NULL);
RSA_get0_factors(k->rsa, &p, NULL);
return p;
}
const BIGNUM *
rsa_q(struct sshkey *k)
{
const BIGNUM *q = NULL;
ASSERT_PTR_NE(k, NULL);
ASSERT_PTR_NE(k->rsa, NULL);
RSA_get0_factors(k->rsa, NULL, &q);
return q;
}
const BIGNUM *
dsa_g(struct sshkey *k)
{
const BIGNUM *g = NULL;
ASSERT_PTR_NE(k, NULL);
ASSERT_PTR_NE(k->dsa, NULL);
DSA_get0_pqg(k->dsa, NULL, NULL, &g);
return g;
}
const BIGNUM *
dsa_pub_key(struct sshkey *k)
{
const BIGNUM *pub_key = NULL;
ASSERT_PTR_NE(k, NULL);
ASSERT_PTR_NE(k->dsa, NULL);
DSA_get0_key(k->dsa, &pub_key, NULL);
return pub_key;
}
const BIGNUM *
dsa_priv_key(struct sshkey *k)
{
const BIGNUM *priv_key = NULL;
ASSERT_PTR_NE(k, NULL);
ASSERT_PTR_NE(k->dsa, NULL);
DSA_get0_key(k->dsa, NULL, &priv_key);
return priv_key;
}
#endif /* WITH_OPENSSL */
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