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test-stream.c
454 lines (359 loc) · 13.4 KB
/
test-stream.c
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#include "lib.h"
#include "buffer.h"
#include "str.h"
#include "dcrypt.h"
#include "ostream.h"
#include "ostream-encrypt.h"
#include "istream.h"
#include "istream-decrypt.h"
#include "istream-hash.h"
#include "istream-base64.h"
#include "iostream-temp.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_nfinish(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_weak(payload, IO_BLOCK_SIZE);
struct ostream *os = iostream_temp_create("/tmp", 0);
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_nfinish(os_2) == 0);
test_assert(os_2->stream_errno == 0);
o_stream_unref(&os_2);
struct istream *is = iostream_temp_finish(&os, IO_BLOCK_SIZE);
struct istream *is_2 = i_stream_create_decrypt(is, test_v2_kp.priv);
i_stream_unref(&is);
while(i_stream_read_data(is_2, &ptr, &siz, 0)>0) {
test_assert_idx(pos + siz <= sizeof(payload), pos);
if (pos + siz > sizeof(payload)) break;
test_assert_idx(memcmp(ptr, payload + pos, siz) == 0, pos);
i_stream_skip(is_2, siz);
}
test_assert(is_2->stream_errno == 0);
i_stream_unref(&is_2);
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_weak(payload, 1);
struct ostream *os = iostream_temp_create("/tmp", 0);
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_nfinish(os_2) == 0);
test_assert(os_2->stream_errno == 0);
o_stream_unref(&os_2);
struct istream *is = iostream_temp_finish(&os, IO_BLOCK_SIZE);
struct istream *is_2 = i_stream_create_decrypt(is, test_v2_kp.priv);
i_stream_unref(&is);
while(i_stream_read_data(is_2, &ptr, &siz, 0)>0) {
test_assert_idx(pos + siz <= sizeof(payload), pos);
if (pos + siz > sizeof(payload)) break;
test_assert_idx(memcmp(ptr, payload + pos, siz) == 0, pos);
i_stream_skip(is_2, siz);
}
test_assert(is_2->stream_errno == 0);
i_stream_unref(&is_2);
test_end();
}
static
void test_write_read_v1_empty(void)
{
const unsigned char *ptr;
size_t siz;
test_begin("test_write_read_v1_empty");
struct ostream *os = iostream_temp_create("/tmp", 0);
struct ostream *os_2 = o_stream_create_encrypt(os, "<unused>", test_v1_kp.pub, IO_STREAM_ENC_VERSION_1);
test_assert(o_stream_nfinish(os_2) == 0);
if (os_2->stream_errno != 0)
i_debug("error: %s", o_stream_get_error(os_2));
o_stream_unref(&os_2);
/* this should've been enough */
struct istream *is = iostream_temp_finish(&os, IO_BLOCK_SIZE);
struct istream *is_2 = i_stream_create_decrypt(is, test_v1_kp.priv);
i_stream_unref(&is);
/* read should not fail */
while(i_stream_read_data(is_2, &ptr, &siz, 0)>0) {
test_assert(FALSE); /* should never be reached */
};
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_2);
test_end();
}
static
void test_write_read_v2(void)
{
test_begin("test_write_read_v2");
unsigned char payload[IO_BLOCK_SIZE];
const unsigned char *ptr;
size_t pos = 0, siz;
random_fill_weak(payload, IO_BLOCK_SIZE);
struct ostream *os = iostream_temp_create("/tmp", 0);
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_nfinish(os_2) == 0);
if (os_2->stream_errno != 0)
i_debug("error: %s", o_stream_get_error(os_2));
o_stream_unref(&os_2);
struct istream *is = iostream_temp_finish(&os, IO_BLOCK_SIZE);
struct istream *is_2 = i_stream_create_decrypt(is, test_v1_kp.priv);
i_stream_unref(&is);
while(i_stream_read_data(is_2, &ptr, &siz, 0)>0) {
test_assert_idx(pos + siz <= sizeof(payload), pos);
if (pos + siz > sizeof(payload)) break;
test_assert_idx(memcmp(ptr, payload + pos, siz) == 0, pos);
i_stream_skip(is_2, 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_2);
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_weak(payload, 1);
struct ostream *os = iostream_temp_create("/tmp", 0);
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_nfinish(os_2) == 0);
if (os_2->stream_errno != 0)
i_debug("error: %s", o_stream_get_error(os_2));
o_stream_unref(&os_2);
struct istream *is = iostream_temp_finish(&os, IO_BLOCK_SIZE);
struct istream *is_2 = i_stream_create_decrypt(is, test_v1_kp.priv);
i_stream_unref(&is);
while(i_stream_read_data(is_2, &ptr, &siz, 0)>0) {
test_assert_idx(pos + siz <= sizeof(payload), pos);
if (pos + siz > sizeof(payload)) break;
test_assert_idx(memcmp(ptr, payload + pos, siz) == 0, pos);
i_stream_skip(is_2, 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_2);
test_end();
}
static
void test_write_read_v2_empty(void)
{
const unsigned char *ptr;
size_t siz;
test_begin("test_write_read_v2_empty");
struct ostream *os = iostream_temp_create("/tmp", 0);
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_nfinish(os_2) == 0);
if (os_2->stream_errno != 0)
i_debug("error: %s", o_stream_get_error(os_2));
o_stream_unref(&os_2);
/* this should've been enough */
struct istream *is = iostream_temp_finish(&os, IO_BLOCK_SIZE);
struct istream *is_2 = i_stream_create_decrypt(is, test_v1_kp.priv);
i_stream_unref(&is);
/* read should not fail */
while(i_stream_read_data(is_2, &ptr, &siz, 0)>0) {
test_assert(FALSE); /* should never be reached */
};
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_2);
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_8byte_garbage(void)
{
test_begin("test_read_8byte_garbage");
struct istream *is = i_stream_create_from_data("12345678", 8);
struct istream *ds = i_stream_create_decrypt_callback(is,
no_op_cb, NULL);
ssize_t siz = i_stream_read(ds);
test_assert(siz < 0);
i_stream_unref(&ds);
i_stream_unref(&is);
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) {
if (!dcrypt_initialize(NULL, NULL, NULL)) {
i_error("No functional dcrypt backend found - skipping tests");
return 0;
}
random_init();
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 (*test_functions[])(void) = {
test_static_v1_input,
test_static_v1_input_short,
test_static_v2_input,
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_8byte_garbage,
NULL
};
return test_run(test_functions);
}