1 files changed, 163 insertions, 0 deletions
diff --git a/regress/unittests/sshkey/common.c b/regress/unittests/sshkey/common.c
new file mode 100644
index 0000000..51b0d92
--- /dev/null
+++ b/regress/unittests/sshkey/common.c
@@ -0,0 +1,163 @@
+/* 	$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 */
+