Adding upstream version 1:2.3.19.1+dfsg1.upstream/1%2.3.19.1+dfsg1upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 639 insertions, 0 deletions

diff --git a/src/lib-dcrypt/test-stream.c b/src/lib-dcrypt/test-stream.c
new file mode 100644
index 0000000..8c1a985
--- /dev/null
+++ b/src/lib-dcrypt/test-stream.c
@@ -0,0 +1,639 @@
+/* Copyright (c) 2016-2018 Dovecot authors, see the included COPYING file */
+
+#include "lib.h"
+#include "buffer.h"
+#include "str.h"
+#include "dcrypt.h"
+#include "dcrypt-iostream.h"
+#include "ostream.h"
+#include "ostream-encrypt.h"
+#include "istream.h"
+#include "istream-decrypt.h"
+#include "istream-hash.h"
+#include "istream-base64.h"
+#include "randgen.h"
+#include "hash-method.h"
+#include "test-common.h"
+#include "hex-binary.h"
+
+#include <fcntl.h>
+#include <sys/stat.h>
+#include <stdio.h>
+
+static const char key_v1_priv[] =
+	"-----BEGIN PRIVATE KEY-----\n"
+	"MIGpAgEAMBAGByqGSM49AgEGBSuBBAAjBIGRMIGOAgEBBEGz2V2VMi/5s+Z+GJh7\n"
+	"4WfqZjZUpqqm+NJWojm6BbrZMY+9ZComlTGVcUZ007acFxV93oMmrfmtRUb5ynrb\n"
+	"MRFskKFGA0QAAwHrAJc8TvyPzspOoz6UH1C1YRmaUVm8tsLu2d0dYtZeOKJUl52J\n"
+	"4o8MKIg+ce4q0mTNFrhj+glKj29ppWti6JGAQA==\n"
+	"-----END PRIVATE KEY-----";
+
+static const char key_v1_pub[] =
+	"-----BEGIN PUBLIC KEY-----\n"
+	"MFgwEAYHKoZIzj0CAQYFK4EEACMDRAADAesAlzxO/I/Oyk6jPpQfULVhGZpRWby2\n"
+	"wu7Z3R1i1l44olSXnYnijwwoiD5x7irSZM0WuGP6CUqPb2mla2LokYBA\n"
+	"-----END PUBLIC KEY-----";
+
+static const char key_v2_priv[] =
+	"-----BEGIN PRIVATE KEY-----\n"
+	"MIGHAgEAMBMGByqGSM49AgEGCCqGSM49AwEHBG0wawIBAQQgtuQJA+uboZWVwgHc\n"
+	"DciyVdrovAPwlMqshDK3s78IDDuhRANCAAQm0VEdzLB9PtD0HA8JK1zifWnj8M00\n"
+	"FQzedfp9SQsWyA8dzs5/NFR5MTe6Xbh/ndKEs1zZH3vZ4FlNrilZc0st\n"
+	"-----END PRIVATE KEY-----";
+
+static const char key_v2_pub[] =
+	"-----BEGIN PUBLIC KEY-----\n"
+	"MFkwEwYHKoZIzj0CAQYIKoZIzj0DAQcDQgAEJtFRHcywfT7Q9BwPCStc4n1p4/DN\n"
+	"NBUM3nX6fUkLFsgPHc7OfzRUeTE3ul24f53ShLNc2R972eBZTa4pWXNLLQ==\n"
+	"-----END PUBLIC KEY-----";
+
+static const char test_sample_v1_hash[] =
+	"1d7cc2cc1f1983f76241cc42389911e88590ad58cf9d54cafeb5b198d3723dd1";
+static const char test_sample_v1_short_hash[] =
+	"b5bb9d8014a0f9b1d61e21e796d78dccdf1352f23cd32812f4850b878ae4944c";
+static const char test_sample_v2_hash[] =
+	"2e31218656dd34db65b321688bf418dee4ee785e99eb9c21e0d29b4af27a863e";
+
+static struct dcrypt_keypair test_v1_kp;
+static struct dcrypt_keypair test_v2_kp;
+
+static void test_static_v1_input(void)
+{
+	ssize_t siz;
+	const struct hash_method *hash = hash_method_lookup("sha256");
+	unsigned char hash_ctx[hash->context_size];
+	unsigned char hash_dgst[hash->digest_size];
+	hash->init(hash_ctx);
+
+	test_begin("test_static_v1_input");
+
+	struct istream *is_1 =
+		i_stream_create_file(DCRYPT_SRC_DIR"/sample-v1.asc",
+				     IO_BLOCK_SIZE);
+	struct istream *is_2 = i_stream_create_base64_decoder(is_1);
+	i_stream_unref(&is_1);
+	struct istream *is_3 = i_stream_create_decrypt(is_2, test_v1_kp.priv);
+	i_stream_unref(&is_2);
+	struct istream *is_4 = i_stream_create_hash(is_3, hash, hash_ctx);
+	i_stream_unref(&is_3);
+
+	while((siz = i_stream_read(is_4))>0) { i_stream_skip(is_4, siz); }
+
+	if (is_4->stream_errno != 0)
+		i_debug("error: %s", i_stream_get_error(is_4));
+
+	test_assert(is_4->stream_errno == 0);
+
+	i_stream_unref(&is_4);
+
+	hash->result(hash_ctx, hash_dgst);
+
+	test_assert(strcmp(test_sample_v1_hash,
+			   binary_to_hex(hash_dgst, sizeof(hash_dgst))) == 0);
+
+	test_end();
+}
+
+static void test_static_v1_input_short(void)
+{
+	ssize_t siz;
+	const struct hash_method *hash = hash_method_lookup("sha256");
+	unsigned char hash_ctx[hash->context_size];
+	unsigned char hash_dgst[hash->digest_size];
+	hash->init(hash_ctx);
+
+	test_begin("test_static_v1_input_short");
+
+	struct istream *is_1 =
+		i_stream_create_file(DCRYPT_SRC_DIR"/sample-v1_short.asc",
+				     IO_BLOCK_SIZE);
+	struct istream *is_2 = i_stream_create_base64_decoder(is_1);
+	i_stream_unref(&is_1);
+	struct istream *is_3 = i_stream_create_decrypt(is_2, test_v1_kp.priv);
+	i_stream_unref(&is_2);
+	struct istream *is_4 = i_stream_create_hash(is_3, hash, hash_ctx);
+	i_stream_unref(&is_3);
+
+	while((siz = i_stream_read(is_4))>0) { i_stream_skip(is_4, siz); }
+
+	if (is_4->stream_errno != 0)
+		i_debug("error: %s", i_stream_get_error(is_4));
+
+	test_assert(is_4->stream_errno == 0);
+
+	i_stream_unref(&is_4);
+
+	hash->result(hash_ctx, hash_dgst);
+
+	test_assert(strcmp(test_sample_v1_short_hash,
+			   binary_to_hex(hash_dgst, sizeof(hash_dgst))) == 0);
+
+	test_end();
+}
+
+static void test_static_v2_input(void)
+{
+	test_begin("test_static_v2_input");
+
+	ssize_t amt;
+	const struct hash_method *hash = hash_method_lookup("sha256");
+	unsigned char hash_ctx[hash->context_size];
+	unsigned char hash_dgst[hash->digest_size];
+	hash->init(hash_ctx);
+
+	struct istream *is_1 =
+		i_stream_create_file(DCRYPT_SRC_DIR"/sample-v2.asc",
+				     IO_BLOCK_SIZE);
+	struct istream *is_2 = i_stream_create_base64_decoder(is_1);
+	i_stream_unref(&is_1);
+	struct istream *is_3 = i_stream_create_decrypt(is_2, test_v2_kp.priv);
+	i_stream_unref(&is_2);
+	struct istream *is_4 = i_stream_create_hash(is_3, hash, hash_ctx);
+	i_stream_unref(&is_3);
+
+	while((amt = i_stream_read(is_4))>0) { i_stream_skip(is_4, amt); }
+
+	if (is_4->stream_errno != 0)
+		i_debug("error: %s", i_stream_get_error(is_4));
+
+	test_assert(is_4->stream_errno == 0);
+
+	i_stream_unref(&is_4);
+
+	hash->result(hash_ctx, hash_dgst);
+
+	test_assert(strcmp(test_sample_v2_hash,
+		    binary_to_hex(hash_dgst, sizeof(hash_dgst))) == 0);
+
+	test_end();
+
+/** this code is left here to show how the sample file is created
+	struct istream *is =
+		i_stream_create_file("../lib-fts/udhr_fra.txt", 8192);
+	struct istream *is_2 = i_stream_create_hash(is, hash, hash_ctx);
+	int fd = open("sample-v2.bin", O_CREAT|O_TRUNC|O_WRONLY, S_IRWXU);
+	struct ostream *os = o_stream_create_fd_file(fd, 0, TRUE);
+	struct ostream *os_2 = o_stream_create_encrypt(os,
+		"aes-256-gcm-sha256", test_v2_kp.pub,
+		IO_STREAM_ENC_INTEGRITY_AEAD);
+	const unsigned char *ptr;
+	size_t siz;
+
+	while(i_stream_read_data(is_2, &ptr, &siz, 0)>0) {
+		o_stream_nsend(os_2, ptr, siz);
+		i_stream_skip(is_2, siz);
+	}
+
+	i_assert(o_stream_finish(os_2) > 0);
+
+	o_stream_close(os_2);
+	i_stream_close(is_2);
+
+	hash->result(hash_ctx, hash_dgst);
+	printf("%s\n", binary_to_hex(hash_dgst, sizeof(hash_dgst)));
+*/
+}
+
+static void test_write_read_v1(void)
+{
+	test_begin("test_write_read_v1");
+	unsigned char payload[IO_BLOCK_SIZE];
+	const unsigned char *ptr;
+	size_t pos = 0, siz;
+	random_fill(payload, IO_BLOCK_SIZE);
+
+	buffer_t *buf = buffer_create_dynamic(default_pool, sizeof(payload));
+	struct ostream *os = o_stream_create_buffer(buf);
+	struct ostream *os_2 = o_stream_create_encrypt(os,
+		"<unused>", test_v2_kp.pub, IO_STREAM_ENC_VERSION_1);
+	o_stream_nsend(os_2, payload, sizeof(payload));
+
+	if (os_2->stream_errno != 0)
+		i_debug("error: %s", o_stream_get_error(os_2));
+
+	test_assert(os_2->stream_errno == 0);
+	test_assert(o_stream_finish(os_2) > 0);
+	test_assert(os_2->stream_errno == 0);
+
+	o_stream_unref(&os);
+	o_stream_unref(&os_2);
+
+	struct istream *is = test_istream_create_data(buf->data, buf->used);
+	struct istream *is_2 = i_stream_create_decrypt(is, test_v2_kp.priv);
+
+	size_t offset = 0;
+	test_istream_set_allow_eof(is, FALSE);
+	test_istream_set_size(is, 0);
+	while(i_stream_read_data(is_2, &ptr, &siz, 0)>=0) {
+		if (offset == buf->used)
+			test_istream_set_allow_eof(is, TRUE);
+		else
+			test_istream_set_size(is, ++offset);
+
+		test_assert_idx(pos + siz <= sizeof(payload), pos);
+		if (pos + siz > sizeof(payload))
+			break;
+		test_assert_idx(siz == 0 ||
+				memcmp(ptr, payload + pos, siz) == 0, pos);
+		i_stream_skip(is_2, siz); pos += siz;
+	}
+
+	test_assert(is_2->stream_errno == 0);
+
+	i_stream_unref(&is);
+	i_stream_unref(&is_2);
+	buffer_free(&buf);
+
+	test_end();
+}
+
+static void test_write_read_v1_short(void)
+{
+	test_begin("test_write_read_v1_short");
+	unsigned char payload[1];
+	const unsigned char *ptr;
+	size_t pos = 0, siz;
+	random_fill(payload, 1);
+
+	buffer_t *buf = buffer_create_dynamic(default_pool, 64);
+	struct ostream *os = o_stream_create_buffer(buf);
+	struct ostream *os_2 = o_stream_create_encrypt(os,
+		"<unused>", test_v2_kp.pub, IO_STREAM_ENC_VERSION_1);
+	o_stream_nsend(os_2, payload, sizeof(payload));
+
+	if (os_2->stream_errno != 0)
+		i_debug("error: %s", o_stream_get_error(os_2));
+
+	test_assert(os_2->stream_errno == 0);
+	test_assert(o_stream_finish(os_2) > 0);
+	test_assert(os_2->stream_errno == 0);
+
+	o_stream_unref(&os);
+	o_stream_unref(&os_2);
+
+	struct istream *is = test_istream_create_data(buf->data, buf->used);
+	struct istream *is_2 = i_stream_create_decrypt(is, test_v2_kp.priv);
+
+	size_t offset = 0;
+	test_istream_set_allow_eof(is, FALSE);
+	test_istream_set_size(is, 0);
+	while(i_stream_read_data(is_2, &ptr, &siz, 0)>=0) {
+		if (offset == buf->used)
+			test_istream_set_allow_eof(is, TRUE);
+		else
+			test_istream_set_size(is, ++offset);
+
+		test_assert_idx(pos + siz <= sizeof(payload), pos);
+		if (siz > sizeof(payload) || pos + siz > sizeof(payload))
+			break;
+		test_assert_idx(siz == 0 ||
+				memcmp(ptr, payload + pos, siz) == 0, pos);
+		i_stream_skip(is_2, siz); pos += siz;
+	}
+
+	test_assert(is_2->stream_errno == 0);
+
+	i_stream_unref(&is);
+	i_stream_unref(&is_2);
+	buffer_free(&buf);
+
+	test_end();
+}
+
+static void test_write_read_v1_empty(void)
+{
+	const unsigned char *ptr;
+	size_t siz;
+	test_begin("test_write_read_v1_empty");
+	buffer_t *buf = buffer_create_dynamic(default_pool, 64);
+	struct ostream *os = o_stream_create_buffer(buf);
+	struct ostream *os_2 = o_stream_create_encrypt(os,
+		"<unused>", test_v1_kp.pub, IO_STREAM_ENC_VERSION_1);
+	test_assert(o_stream_finish(os_2) > 0);
+	if (os_2->stream_errno != 0)
+		i_debug("error: %s", o_stream_get_error(os_2));
+
+	o_stream_unref(&os);
+	o_stream_unref(&os_2);
+	/* this should've been enough */
+
+	struct istream *is = test_istream_create_data(buf->data, buf->used);
+	struct istream *is_2 = i_stream_create_decrypt(is, test_v1_kp.priv);
+
+	/* read should not fail */
+	test_istream_set_allow_eof(is, FALSE);
+	test_istream_set_size(is, 0);
+	size_t offset = 0;
+	ssize_t ret;
+	while ((ret = i_stream_read_data(is_2, &ptr, &siz, 0)) >= 0) {
+		test_assert(ret == 0);
+		if (offset == buf->used)
+			test_istream_set_allow_eof(is, TRUE);
+		else
+			test_istream_set_size(is, ++offset);
+	};
+
+	test_assert(is_2->stream_errno == 0);
+	if (is_2->stream_errno != 0)
+		i_debug("error: %s", i_stream_get_error(is_2));
+	i_stream_unref(&is);
+	i_stream_unref(&is_2);
+	buffer_free(&buf);
+	test_end();
+}
+
+static void test_write_read_v2(void)
+{
+	test_begin("test_write_read_v2");
+	unsigned char payload[IO_BLOCK_SIZE*10];
+	const unsigned char *ptr;
+	size_t pos = 0, siz;
+	random_fill(payload, IO_BLOCK_SIZE*10);
+
+	buffer_t *buf = buffer_create_dynamic(default_pool, sizeof(payload));
+	struct ostream *os = o_stream_create_buffer(buf);
+	struct ostream *os_2 = o_stream_create_encrypt(os,
+		"aes-256-gcm-sha256", test_v1_kp.pub,
+		IO_STREAM_ENC_INTEGRITY_AEAD);
+	o_stream_nsend(os_2, payload, sizeof(payload));
+	test_assert(o_stream_finish(os_2) > 0);
+	if (os_2->stream_errno != 0)
+		i_debug("error: %s", o_stream_get_error(os_2));
+
+	o_stream_unref(&os);
+	o_stream_unref(&os_2);
+
+	struct istream *is = test_istream_create_data(buf->data, buf->used);
+	/* test regression where read fails due to incorrect behaviour
+	   when buffer is full before going to decrypt code */
+	i_stream_set_max_buffer_size(is, 8192);
+	test_assert(i_stream_read(is) > 0);
+	struct istream *is_2 = i_stream_create_decrypt(is, test_v1_kp.priv);
+
+	size_t offset = 0;
+	test_istream_set_size(is, 0);
+	test_istream_set_allow_eof(is, FALSE);
+	while(i_stream_read_data(is_2, &ptr, &siz, 0)>=0) {
+		if (offset == buf->used)
+			test_istream_set_allow_eof(is, TRUE);
+		else
+			test_istream_set_size(is, ++offset);
+
+		test_assert_idx(pos + siz <= sizeof(payload), pos);
+		if (pos + siz > sizeof(payload)) break;
+		test_assert_idx(siz == 0 ||
+				memcmp(ptr, payload + pos, siz) == 0, pos);
+		i_stream_skip(is_2, siz); pos += siz;
+	}
+
+	test_assert(is_2->stream_errno == 0);
+	if (is_2->stream_errno != 0)
+		i_debug("error: %s", i_stream_get_error(is_2));
+
+	/* test seeking */
+	for (size_t i = sizeof(payload)-100; i > 100; i -= 100) {
+		i_stream_seek(is_2, i);
+		test_assert_idx(i_stream_read_data(is_2, &ptr, &siz, 0) == 1, i);
+		test_assert_idx(memcmp(ptr, payload + i, siz) == 0, i);
+	}
+	i_stream_seek(is_2, 0);
+	test_assert(i_stream_read_data(is_2, &ptr, &siz, 0) == 1);
+	test_assert(memcmp(ptr, payload, siz) == 0);
+
+	i_stream_unref(&is);
+	i_stream_unref(&is_2);
+	buffer_free(&buf);
+
+	test_end();
+}
+
+static void test_write_read_v2_short(void)
+{
+	test_begin("test_write_read_v2_short");
+	unsigned char payload[1];
+	const unsigned char *ptr;
+	size_t pos = 0, siz;
+	random_fill(payload, 1);
+
+	buffer_t *buf = buffer_create_dynamic(default_pool, 64);
+	struct ostream *os = o_stream_create_buffer(buf);
+	struct ostream *os_2 = o_stream_create_encrypt(os,
+		"aes-256-gcm-sha256", test_v1_kp.pub,
+		IO_STREAM_ENC_INTEGRITY_AEAD);
+	o_stream_nsend(os_2, payload, sizeof(payload));
+	test_assert(o_stream_finish(os_2) > 0);
+	if (os_2->stream_errno != 0)
+		i_debug("error: %s", o_stream_get_error(os_2));
+
+	o_stream_unref(&os);
+	o_stream_unref(&os_2);
+
+	struct istream *is = test_istream_create_data(buf->data, buf->used);
+	struct istream *is_2 = i_stream_create_decrypt(is, test_v1_kp.priv);
+
+	size_t offset = 0;
+	test_istream_set_allow_eof(is, FALSE);
+	test_istream_set_size(is, 0);
+	while(i_stream_read_data(is_2, &ptr, &siz, 0)>=0) {
+		if (offset == buf->used)
+			test_istream_set_allow_eof(is, TRUE);
+		test_istream_set_size(is, ++offset);
+
+		test_assert_idx(pos + siz <= sizeof(payload), pos);
+		if (siz > sizeof(payload) || pos + siz > sizeof(payload))
+			break;
+		test_assert_idx(siz == 0 ||
+				memcmp(ptr, payload + pos, siz) == 0, pos);
+		i_stream_skip(is_2, siz); pos += siz;
+	}
+
+	test_assert(is_2->stream_errno == 0);
+	if (is_2->stream_errno != 0)
+		i_debug("error: %s", i_stream_get_error(is_2));
+
+	i_stream_unref(&is);
+	i_stream_unref(&is_2);
+	buffer_free(&buf);
+
+	test_end();
+}
+
+static void test_write_read_v2_empty(void)
+{
+	const unsigned char *ptr;
+	size_t siz;
+	test_begin("test_write_read_v2_empty");
+	buffer_t *buf = buffer_create_dynamic(default_pool, 64);
+	struct ostream *os = o_stream_create_buffer(buf);
+	struct ostream *os_2 = o_stream_create_encrypt(os,
+		"aes-256-gcm-sha256", test_v1_kp.pub,
+		IO_STREAM_ENC_INTEGRITY_AEAD);
+	test_assert(o_stream_finish(os_2) > 0);
+	if (os_2->stream_errno != 0)
+		i_debug("error: %s", o_stream_get_error(os_2));
+
+	o_stream_unref(&os);
+	o_stream_unref(&os_2);
+	/* this should've been enough */
+
+	struct istream *is = test_istream_create_data(buf->data, buf->used);
+	struct istream *is_2 = i_stream_create_decrypt(is, test_v1_kp.priv);
+
+	/* read should not fail */
+	size_t offset = 0;
+	test_istream_set_allow_eof(is, FALSE);
+	test_istream_set_size(is, 0);
+	ssize_t ret;
+	while ((ret = i_stream_read_data(is_2, &ptr, &siz, 0)) >= 0) {
+		test_assert(ret == 0);
+		if (offset == buf->used)
+			test_istream_set_allow_eof(is, TRUE);
+		test_istream_set_size(is, ++offset);
+	};
+
+	test_assert(is_2->stream_errno == 0);
+	if (is_2->stream_errno != 0)
+		i_debug("error: %s", i_stream_get_error(is_2));
+	i_stream_unref(&is);
+	i_stream_unref(&is_2);
+	buffer_free(&buf);
+	test_end();
+}
+
+static int
+no_op_cb(const char *digest ATTR_UNUSED,
+	 struct dcrypt_private_key **priv_key_r ATTR_UNUSED,
+	 const char **error_r ATTR_UNUSED,
+	 void *context ATTR_UNUSED)
+{
+	return 0;
+}
+
+static void test_read_0_to_400_byte_garbage(void)
+{
+	test_begin("test_read_0_to_100_byte_garbage");
+
+	char data[512];
+	memset(data, 0, sizeof(data));
+
+	for (size_t s = 0; s <= 400; ++s) {
+		struct istream *is = test_istream_create_data(data, s);
+		struct istream *ds = i_stream_create_decrypt_callback(is,
+				no_op_cb, NULL);
+		test_istream_set_size(is, 0);
+		test_istream_set_allow_eof(is, FALSE);
+		ssize_t siz = 0;
+		for (size_t offset = 0; offset <= s && siz == 0; offset++) {
+			if (offset == s)
+				test_istream_set_allow_eof(is, TRUE);
+			test_istream_set_size(is, offset);
+			siz = i_stream_read(ds);
+		}
+		test_assert_idx(siz < 0, s);
+		i_stream_unref(&ds);
+		i_stream_unref(&is);
+	}
+
+	test_end();
+}
+
+static void test_read_large_header(void)
+{
+	test_begin("test_read_large_header");
+
+	struct istream *is =
+		test_istream_create_data(IOSTREAM_CRYPT_MAGIC,
+					 sizeof(IOSTREAM_CRYPT_MAGIC));
+	struct istream *ds =
+		i_stream_create_decrypt_callback(is, no_op_cb, NULL);
+	test_istream_set_allow_eof(is, FALSE);
+	test_istream_set_max_buffer_size(is, sizeof(IOSTREAM_CRYPT_MAGIC));
+
+	test_assert(i_stream_read(ds) == -1);
+	i_stream_unref(&ds);
+	i_stream_unref(&is);
+
+	test_end();
+}
+
+static void test_read_increment(void)
+{
+	test_begin("test_read_increment");
+
+	ssize_t amt, total, i;
+
+	struct istream *is_1 = i_stream_create_file(
+		DCRYPT_SRC_DIR"/sample-v2.asc", IO_BLOCK_SIZE);
+	struct istream *is_2 = i_stream_create_base64_decoder(is_1);
+	i_stream_unref(&is_1);
+	struct istream *is_3 = i_stream_create_decrypt(is_2, test_v2_kp.priv);
+	i_stream_unref(&is_2);
+	total = 0;
+	i = 500;
+
+	i_stream_set_max_buffer_size(is_3, i);
+	while((amt = i_stream_read(is_3)) > 0) {
+		total += amt;
+		i_stream_set_max_buffer_size(is_3, ++i);
+	}
+
+	/* make sure snapshotting works: */
+	i_stream_skip(is_3, 1);
+	test_assert(i_stream_read(is_3) == -1);
+
+	test_assert(total == 13534);
+	test_assert(is_3->stream_errno == 0);
+	test_assert(is_3->eof);
+
+	i_stream_unref(&is_3);
+
+        test_end();
+}
+
+static void test_free_keys()
+{
+	dcrypt_key_unref_private(&test_v1_kp.priv);
+	dcrypt_key_unref_public(&test_v1_kp.pub);
+	dcrypt_key_unref_private(&test_v2_kp.priv);
+	dcrypt_key_unref_public(&test_v2_kp.pub);
+}
+
+int main(void)
+{
+	struct dcrypt_settings set = {
+		.module_dir = ".libs"
+	};
+	const char *error;
+
+	if (!dcrypt_initialize(NULL, &set, &error)) {
+		i_error("No functional dcrypt backend found - "
+			"skipping tests: %s", error);
+		return 0;
+	}
+
+	test_assert(dcrypt_key_load_private(&test_v1_kp.priv, key_v1_priv,
+					    NULL, NULL, NULL));
+	test_assert(dcrypt_key_load_public(&test_v1_kp.pub, key_v1_pub, NULL));
+	test_assert(dcrypt_key_load_private(&test_v2_kp.priv, key_v2_priv,
+					    NULL, NULL, NULL));
+	test_assert(dcrypt_key_load_public(&test_v2_kp.pub, key_v2_pub, NULL));
+
+	static void (*const test_functions[])(void) = {
+		test_static_v1_input,
+		test_static_v1_input_short,
+		test_static_v2_input,
+		test_read_increment,
+		test_write_read_v1,
+		test_write_read_v1_short,
+		test_write_read_v1_empty,
+		test_write_read_v2,
+		test_write_read_v2_short,
+		test_write_read_v2_empty,
+		test_free_keys,
+		test_read_0_to_400_byte_garbage,
+		test_read_large_header,
+		NULL
+	};
+
+	return test_run(test_functions);
+}