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test_ffi.cpp
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test_ffi.cpp
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/*
* (C) 2015 Jack Lloyd
* (C) 2016 René Korthaus
* (C) 2018 Ribose Inc, Krzysztof Kwiatkowski
* (C) 2018 Ribose Inc
*
* Botan is released under the Simplified BSD License (see license.txt)
*/
#define BOTAN_NO_DEPRECATED_WARNINGS
#include "tests.h"
#include <botan/version.h>
#if defined(BOTAN_HAS_FFI)
#include <botan/ffi.h>
#include <botan/hex.h>
#include <botan/internal/fmt.h>
#include <botan/internal/loadstor.h>
#include <set>
#endif
namespace Botan_Tests {
namespace {
#if defined(BOTAN_HAS_FFI)
// NOLINTNEXTLINE(*-macro-usage)
#define _TEST_FFI_STR_HELPER(x) #x
// NOLINTNEXTLINE(*-macro-usage)
#define _TEST_FFI_STR(x) _TEST_FFI_STR_HELPER(x)
// NOLINTNEXTLINE(*-macro-usage)
#define _TEST_FFI_SOURCE_LOCATION(func, file, line) (func " invoked at " file ":" _TEST_FFI_STR(line))
// NOLINTNEXTLINE(*-macro-usage)
#define TEST_FFI_OK(func, args) result.test_rc_ok(_TEST_FFI_SOURCE_LOCATION(#func, __FILE__, __LINE__), func args)
// NOLINTNEXTLINE(*-macro-usage)
#define TEST_FFI_INIT(func, args) \
result.test_rc_init(_TEST_FFI_SOURCE_LOCATION(#func, __FILE__, __LINE__), func args)
// NOLINTNEXTLINE(*-macro-usage)
#define TEST_FFI_FAIL(msg, func, args) \
result.test_rc_fail(_TEST_FFI_SOURCE_LOCATION(#func, __FILE__, __LINE__), msg, func args)
// NOLINTNEXTLINE(*-macro-usage)
#define TEST_FFI_RC(rc, func, args) \
result.test_rc(_TEST_FFI_SOURCE_LOCATION(#func, __FILE__, __LINE__), rc, func args)
// NOLINTNEXTLINE(*-macro-usage)
#define REQUIRE_FFI_OK(func, args) \
if(!TEST_FFI_OK(func, args)) { \
result.test_note("Exiting test early due to failure"); \
return; \
}
class FFI_Test : public Test {
public:
std::vector<Test::Result> run() override {
Test::Result result(this->name());
botan_rng_t rng;
if(botan_rng_init(&rng, "system") != 0) {
result.test_failure("Failed to init RNG");
return {result};
}
result.start_timer();
ffi_test(result, rng);
result.end_timer();
botan_rng_destroy(rng);
return {result};
}
private:
virtual std::string name() const = 0;
virtual void ffi_test(Test::Result& result, botan_rng_t rng) = 0;
};
void ffi_test_pubkey_export(Test::Result& result, botan_pubkey_t pub, botan_privkey_t priv, botan_rng_t rng) {
// export public key
size_t pubkey_len = 0;
TEST_FFI_RC(BOTAN_FFI_ERROR_INSUFFICIENT_BUFFER_SPACE,
botan_pubkey_export,
(pub, nullptr, &pubkey_len, BOTAN_PRIVKEY_EXPORT_FLAG_DER));
std::vector<uint8_t> pubkey(pubkey_len);
TEST_FFI_OK(botan_pubkey_export, (pub, pubkey.data(), &pubkey_len, BOTAN_PRIVKEY_EXPORT_FLAG_DER));
pubkey_len = 0;
TEST_FFI_RC(BOTAN_FFI_ERROR_INSUFFICIENT_BUFFER_SPACE,
botan_pubkey_export,
(pub, nullptr, &pubkey_len, BOTAN_PRIVKEY_EXPORT_FLAG_PEM));
pubkey.resize(pubkey_len);
TEST_FFI_OK(botan_pubkey_export, (pub, pubkey.data(), &pubkey_len, BOTAN_PRIVKEY_EXPORT_FLAG_PEM));
// reimport exported public key
botan_pubkey_t pub_copy;
TEST_FFI_OK(botan_pubkey_load, (&pub_copy, pubkey.data(), pubkey_len));
TEST_FFI_OK(botan_pubkey_check_key, (pub_copy, rng, 0));
TEST_FFI_OK(botan_pubkey_destroy, (pub_copy));
// export private key
std::vector<uint8_t> privkey;
size_t privkey_len = 0;
// call with nullptr to query the length
TEST_FFI_RC(BOTAN_FFI_ERROR_INSUFFICIENT_BUFFER_SPACE,
botan_privkey_export,
(priv, nullptr, &privkey_len, BOTAN_PRIVKEY_EXPORT_FLAG_DER));
privkey.resize(privkey_len);
privkey_len = privkey.size(); // set buffer size
TEST_FFI_OK(botan_privkey_export, (priv, privkey.data(), &privkey_len, BOTAN_PRIVKEY_EXPORT_FLAG_DER));
privkey.resize(privkey_len);
result.test_gte("Reasonable size", privkey.size(), 32);
// reimport exported private key
botan_privkey_t copy;
TEST_FFI_OK(botan_privkey_load, (©, rng, privkey.data(), privkey.size(), nullptr));
botan_privkey_destroy(copy);
// Now again for PEM
privkey_len = 0;
TEST_FFI_RC(BOTAN_FFI_ERROR_INSUFFICIENT_BUFFER_SPACE,
botan_privkey_export,
(priv, nullptr, &privkey_len, BOTAN_PRIVKEY_EXPORT_FLAG_PEM));
privkey.resize(privkey_len);
TEST_FFI_OK(botan_privkey_export, (priv, privkey.data(), &privkey_len, BOTAN_PRIVKEY_EXPORT_FLAG_PEM));
TEST_FFI_OK(botan_privkey_load, (©, rng, privkey.data(), privkey.size(), nullptr));
botan_privkey_destroy(copy);
#if defined(BOTAN_HAS_AES) && defined(BOTAN_HAS_PKCS5_PBES2)
const size_t pbkdf_iter = 1000;
// export private key encrypted
privkey_len = 0;
TEST_FFI_RC(BOTAN_FFI_ERROR_INSUFFICIENT_BUFFER_SPACE,
botan_privkey_export_encrypted_pbkdf_iter,
(priv, nullptr, &privkey_len, rng, "password", pbkdf_iter, "", "", BOTAN_PRIVKEY_EXPORT_FLAG_DER));
privkey.resize(privkey_len);
privkey_len = privkey.size();
TEST_FFI_OK(
botan_privkey_export_encrypted_pbkdf_iter,
(priv, privkey.data(), &privkey_len, rng, "password", pbkdf_iter, "", "", BOTAN_PRIVKEY_EXPORT_FLAG_DER));
// reimport encrypted private key
botan_privkey_load(©, rng, privkey.data(), privkey.size(), "password");
botan_privkey_destroy(copy);
privkey_len = 0;
TEST_FFI_RC(BOTAN_FFI_ERROR_INSUFFICIENT_BUFFER_SPACE,
botan_privkey_export_encrypted_pbkdf_iter,
(priv, nullptr, &privkey_len, rng, "password", pbkdf_iter, "", "", BOTAN_PRIVKEY_EXPORT_FLAG_PEM));
privkey.resize(privkey_len);
TEST_FFI_OK(
botan_privkey_export_encrypted_pbkdf_iter,
(priv, privkey.data(), &privkey_len, rng, "password", pbkdf_iter, "", "", BOTAN_PRIVKEY_EXPORT_FLAG_PEM));
privkey.resize(privkey_len * 2);
privkey_len = privkey.size();
const uint32_t pbkdf_msec = 100;
size_t pbkdf_iters_out = 0;
#if defined(BOTAN_HAS_SCRYPT)
const std::string pbe_hash = "Scrypt";
#else
const std::string pbe_hash = "SHA-512";
#endif
#if defined(BOTAN_HAS_AEAD_GCM)
const std::string pbe_cipher = "AES-256/GCM";
#else
const std::string pbe_cipher = "AES-256/CBC";
#endif
TEST_FFI_OK(botan_privkey_export_encrypted_pbkdf_msec,
(priv,
privkey.data(),
&privkey_len,
rng,
"password",
pbkdf_msec,
&pbkdf_iters_out,
pbe_cipher.c_str(),
pbe_hash.c_str(),
0));
if(pbe_hash == "Scrypt") {
result.test_eq("Scrypt iters set to zero in this API", pbkdf_iters_out, 0);
} else {
// PBKDF2 currently always rounds to multiple of 2000
result.test_eq("Expected PBKDF2 iters", pbkdf_iters_out % 2000, 0);
}
privkey.resize(privkey_len);
TEST_FFI_OK(botan_privkey_load, (©, rng, privkey.data(), privkey.size(), "password"));
botan_privkey_destroy(copy);
#endif
// calculate fingerprint
size_t strength = 0;
TEST_FFI_OK(botan_pubkey_estimated_strength, (pub, &strength));
result.test_gte("estimated strength", strength, 1);
size_t fingerprint_len = 0;
TEST_FFI_RC(
BOTAN_FFI_ERROR_INSUFFICIENT_BUFFER_SPACE, botan_pubkey_fingerprint, (pub, "SHA-256", nullptr, &fingerprint_len));
std::vector<uint8_t> fingerprint(fingerprint_len);
TEST_FFI_OK(botan_pubkey_fingerprint, (pub, "SHA-256", fingerprint.data(), &fingerprint_len));
}
class FFI_Utils_Test final : public FFI_Test {
public:
std::string name() const override { return "FFI Utils"; }
void ffi_test(Test::Result& result, botan_rng_t /*unused*/) override {
result.test_is_eq("FFI API version", botan_ffi_api_version(), uint32_t(BOTAN_HAS_FFI));
result.test_is_eq("Major version", botan_version_major(), Botan::version_major());
result.test_is_eq("Minor version", botan_version_minor(), Botan::version_minor());
result.test_is_eq("Patch version", botan_version_patch(), Botan::version_patch());
result.test_is_eq("Botan version", botan_version_string(), Botan::version_cstr());
result.test_is_eq("Botan version datestamp", botan_version_datestamp(), Botan::version_datestamp());
result.test_is_eq("FFI supports its own version", botan_ffi_supports_api(botan_ffi_api_version()), 0);
result.test_is_eq("FFI compile time time var matches botan_ffi_api_version",
botan_ffi_api_version(),
uint32_t(BOTAN_FFI_API_VERSION));
result.test_is_eq("FFI supports 2.0 version", botan_ffi_supports_api(20150515), 0);
result.test_is_eq("FFI supports 2.1 version", botan_ffi_supports_api(20170327), 0);
result.test_is_eq("FFI supports 2.3 version", botan_ffi_supports_api(20170815), 0);
result.test_is_eq("FFI supports 2.8 version", botan_ffi_supports_api(20180713), 0);
result.test_is_eq("FFI doesn't support bogus version", botan_ffi_supports_api(20160229), -1);
const std::vector<uint8_t> mem1 = {0xFF, 0xAA, 0xFF};
const std::vector<uint8_t> mem2 = {0xFF, 0xA9, 0xFF};
TEST_FFI_RC(0, botan_constant_time_compare, (mem1.data(), mem1.data(), mem1.size()));
TEST_FFI_RC(-1, botan_constant_time_compare, (mem1.data(), mem2.data(), mem1.size()));
std::vector<uint8_t> to_zero = {0xFF, 0xA0};
TEST_FFI_OK(botan_scrub_mem, (to_zero.data(), to_zero.size()));
result.confirm("scrub_memory zeros", to_zero[0] == 0 && to_zero[1] == 0);
const std::vector<uint8_t> bin = {0xAA, 0xDE, 0x01};
std::string outstr;
std::vector<uint8_t> outbuf;
outstr.resize(2 * bin.size());
TEST_FFI_OK(botan_hex_encode, (bin.data(), bin.size(), &outstr[0], 0));
result.test_eq("uppercase hex", outstr, "AADE01");
TEST_FFI_OK(botan_hex_encode, (bin.data(), bin.size(), &outstr[0], BOTAN_FFI_HEX_LOWER_CASE));
result.test_eq("lowercase hex", outstr, "aade01");
}
};
class FFI_RNG_Test final : public FFI_Test {
public:
std::string name() const override { return "FFI RNG"; }
void ffi_test(Test::Result& result, botan_rng_t /*unused*/) override {
// RNG test and initialization
botan_rng_t rng;
botan_rng_t system_rng;
botan_rng_t hwrng_rng = nullptr;
botan_rng_t null_rng;
botan_rng_t custom_rng;
TEST_FFI_FAIL("invalid rng type", botan_rng_init, (&rng, "invalid_type"));
REQUIRE_FFI_OK(botan_rng_init, (&system_rng, "system"));
REQUIRE_FFI_OK(botan_rng_init, (&null_rng, "null"));
int rc = botan_rng_init(&hwrng_rng, "hwrng");
result.confirm("Either success or not implemented", rc == 0 || rc == BOTAN_FFI_ERROR_NOT_IMPLEMENTED);
std::vector<uint8_t> outbuf(512);
rc = botan_rng_init(&rng, "user-threadsafe");
result.confirm("Either success or not implemented", rc == 0 || rc == BOTAN_FFI_ERROR_NOT_IMPLEMENTED);
if(rc != 0) {
REQUIRE_FFI_OK(botan_rng_init, (&rng, "user"));
REQUIRE_FFI_OK(botan_rng_destroy, (rng));
}
if(rc == 0) {
TEST_FFI_OK(botan_rng_get, (rng, outbuf.data(), outbuf.size()));
TEST_FFI_OK(botan_rng_reseed, (rng, 256));
TEST_FFI_RC(BOTAN_FFI_ERROR_INVALID_OBJECT_STATE, botan_rng_reseed_from_rng, (rng, null_rng, 256));
if(hwrng_rng) {
TEST_FFI_OK(botan_rng_reseed_from_rng, (rng, hwrng_rng, 256));
}
TEST_FFI_RC(BOTAN_FFI_ERROR_INVALID_OBJECT_STATE, botan_rng_get, (null_rng, outbuf.data(), outbuf.size()));
TEST_FFI_OK(botan_rng_destroy, (rng));
}
if(TEST_FFI_OK(botan_rng_init, (&rng, "user"))) {
TEST_FFI_OK(botan_rng_get, (rng, outbuf.data(), outbuf.size()));
TEST_FFI_OK(botan_rng_reseed, (rng, 256));
TEST_FFI_OK(botan_rng_reseed_from_rng, (rng, system_rng, 256));
uint8_t not_really_entropy[32] = {0};
TEST_FFI_OK(botan_rng_add_entropy, (rng, not_really_entropy, 32));
}
uint8_t system_rng_buf[4096];
TEST_FFI_OK(botan_system_rng_get, (system_rng_buf, sizeof(system_rng_buf)));
size_t cb_counter = 0;
auto custom_get_cb = +[](void* context, uint8_t* out, size_t out_len) -> int {
for(size_t i = 0; i != out_len; ++i) {
out[i] = 0x12;
}
(*(static_cast<size_t*>(context)))++;
return 0;
};
auto custom_add_entropy_cb = +[](void* context, const uint8_t input[], size_t length) -> int {
BOTAN_UNUSED(input, length);
(*(static_cast<size_t*>(context)))++;
return 0;
};
auto custom_destroy_cb = +[](void* context) -> void { (*(static_cast<size_t*>(context)))++; };
if(TEST_FFI_OK(
botan_rng_init_custom,
(&custom_rng, "custom rng", &cb_counter, custom_get_cb, custom_add_entropy_cb, custom_destroy_cb))) {
Botan::clear_mem(outbuf.data(), outbuf.size());
TEST_FFI_OK(botan_rng_get, (custom_rng, outbuf.data(), outbuf.size()));
result.test_eq("custom_get_cb called", cb_counter, 1);
std::vector<uint8_t> pattern(outbuf.size(), 0x12);
result.test_eq("custom_get_cb returned bytes", pattern, outbuf);
TEST_FFI_OK(botan_rng_reseed, (custom_rng, 256));
result.test_eq("custom_add_entropy_cb called", cb_counter, 2);
TEST_FFI_OK(botan_rng_reseed_from_rng, (custom_rng, system_rng, 256));
result.test_eq("custom_add_entropy_cb called", cb_counter, 3);
uint8_t not_really_entropy[32] = {0};
TEST_FFI_OK(botan_rng_add_entropy, (custom_rng, not_really_entropy, 32));
result.test_eq("custom_add_entropy_cb called", cb_counter, 4);
TEST_FFI_OK(botan_rng_destroy, (custom_rng));
result.test_eq("custom_destroy_cb called", cb_counter, 5);
}
TEST_FFI_OK(botan_rng_destroy, (rng));
TEST_FFI_OK(botan_rng_destroy, (null_rng));
TEST_FFI_OK(botan_rng_destroy, (system_rng));
TEST_FFI_OK(botan_rng_destroy, (hwrng_rng));
}
};
class FFI_RSA_Cert_Test final : public FFI_Test {
public:
std::string name() const override { return "FFI RSA cert"; }
void ffi_test(Test::Result& result, botan_rng_t /*unused*/) override {
botan_x509_cert_t cert;
if(TEST_FFI_INIT(botan_x509_cert_load_file, (&cert, Test::data_file("x509/ocsp/randombit.pem").c_str()))) {
TEST_FFI_RC(0, botan_x509_cert_hostname_match, (cert, "randombit.net"));
TEST_FFI_RC(0, botan_x509_cert_hostname_match, (cert, "www.randombit.net"));
TEST_FFI_RC(-1, botan_x509_cert_hostname_match, (cert, "*.randombit.net"));
TEST_FFI_RC(-1, botan_x509_cert_hostname_match, (cert, "flub.randombit.net"));
TEST_FFI_RC(-1, botan_x509_cert_hostname_match, (cert, "randombit.net.com"));
botan_x509_cert_t copy;
TEST_FFI_OK(botan_x509_cert_dup, (©, cert));
TEST_FFI_RC(0, botan_x509_cert_hostname_match, (copy, "randombit.net"));
TEST_FFI_OK(botan_x509_cert_destroy, (copy));
TEST_FFI_OK(botan_x509_cert_destroy, (cert));
}
}
};
class FFI_ZFEC_Test final : public FFI_Test {
public:
std::string name() const override { return "FFI ZFEC"; }
void ffi_test(Test::Result& result, botan_rng_t /*unused*/) override {
/* exercise a simple success case
*/
// Select some arbitrary, valid encoding parameters. There is
// nothing special about them but some relationships between these
// values and other inputs must hold.
const size_t K = 3;
const size_t N = 11;
// The decoder needs to know the indexes of the blocks being passed
// in to it. This array must equal [0..N) for the logic in the
// decoding loop below to hold.
const std::vector<size_t> indexes = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10};
// This will be the size of each encoded (or decoded) block. This is
// an arbitrary value but it must match up with the length of the
// test data given in `input`.
const size_t blockSize = 15;
// K of the blocks are required so the total information represented
// can be this multiple. totalSize must be a multiple of K and it
// always will be using this construction.
const size_t totalSize = blockSize * K;
// Here's the complete original input (plus a trailing NUL that we
// won't pass through ZFEC). These are arbitrary bytes.
const uint8_t input[totalSize + 1] = "Does this work?AAAAAAAAAAAAAAAzzzzzzzzzzzzzzz";
// Allocate memory for the encoding and decoding output parameters.
std::vector<uint8_t> encoded_buf(N * blockSize);
std::vector<uint8_t> decoded_buf(K * blockSize);
std::vector<uint8_t*> encoded(N);
for(size_t i = 0; i < N; ++i) {
encoded[i] = &encoded_buf[i * blockSize];
}
std::vector<uint8_t*> decoded(K);
for(size_t i = 0; i < K; ++i) {
decoded[i] = &decoded_buf[i * blockSize];
}
// First encode the complete input string into N blocks where K are
// required for reconstruction. The N encoded blocks will end up in
// `encoded`.
if(!TEST_FFI_INIT(botan_zfec_encode, (K, N, input, totalSize, encoded.data()))) {
return;
}
// Any K blocks can be decoded to reproduce the original input (split
// across an array of K strings of blockSize bytes each). This loop
// only exercises decoding with consecutive blocks because it's
// harder to pick non-consecutive blocks out for a test.
for(size_t offset = 0; offset < N - K; ++offset) {
result.test_note("About to decode with offset " + std::to_string(offset));
// Pass in the K shares starting from `offset` (and their indexes)
// so that we can try decoding a certain group of blocks here. Any
// K shares *should* work.
REQUIRE_FFI_OK(botan_zfec_decode,
(K, N, indexes.data() + offset, encoded.data() + offset, blockSize, decoded.data()));
// Check that the original input bytes have been written to the
// output parameter.
for(size_t k = 0, pos = 0; k < K; ++k, pos += blockSize) {
TEST_FFI_RC(0, botan_constant_time_compare, (input + pos, decoded[k], blockSize));
}
}
/* Exercise a couple basic failure cases, such as you encounter if
* the caller supplies invalid parameters. We don't try to
* exhaustively prove invalid parameters are handled through this
* interface since the implementation only passes them through to
* ZFEC::{encode,decode} where the real checking is. We just want to
* see that errors can propagate.
*/
TEST_FFI_FAIL("encode with out-of-bounds encoding parameters should have failed",
botan_zfec_encode,
(0, 0, nullptr, 0, nullptr));
TEST_FFI_FAIL("decode with out-of-bounds encoding parameters should have failed",
botan_zfec_decode,
(0, 0, nullptr, nullptr, 0, nullptr));
}
};
class FFI_CRL_Test final : public FFI_Test {
public:
std::string name() const override { return "FFI CRL"; }
void ffi_test(Test::Result& result, botan_rng_t /*unused*/) override {
const char* crl_string =
"-----BEGIN X509 CRL-----\n"
"MIICoTCCAQkCAQEwDQYJKoZIhvcNAQELBQAwgZQxLTArBgNVBAMTJFVzYWJsZSBj\n"
"ZXJ0IHZhbGlkYXRpb246IFRlbXBvcmFyeSBDQTE5MDcGA1UECxMwQ2VudHJlIGZv\n"
"ciBSZXNlYXJjaCBvbiBDcnlwdG9ncmFwaHkgYW5kIFNlY3VyaXR5MRswGQYDVQQK\n"
"ExJNYXNhcnlrIFVuaXZlcnNpdHkxCzAJBgNVBAYTAkNaGA8yMDUwMDIyNTE1MjE0\n"
"MloYDzIwNTAwMjI1MTUyNDQxWjAAoDowODAfBgNVHSMEGDAWgBRKzxAvI4+rVVo/\n"
"JzLigRznREyB+TAVBgNVHRQEDgIMXcr16yNys/gjeuCFMA0GCSqGSIb3DQEBCwUA\n"
"A4IBgQCfxv/5REM/KUnzeVycph3dJr1Yrtxhc6pZmQ9pMzSW/nawLN3rUHm5oG44\n"
"ZuQgjvzE4PnbU0/DNRu/4w3H58kgrctJHHXbbvkU3lf2ZZLh2wBl+EUh92+/COow\n"
"ZyGB+jqj/XwB99hYUhrY6NLEWRz08kpgG6dnNMEU0uFqdQKWk0CQPnmgPRgDb8BW\n"
"IuMBcjY7aF9XoCZFOqPYdEvUKzAo4QGCf7uJ7fNGS3LqvjaLjAHJseSr5/yR7Q9r\n"
"nEdI38yKPbRj0tNHe7j+BbYg31C+X+AZZKJtlTg8GxYR3qfQio1kDgpZ3rQLzHY3\n"
"ea2MLX/Kdx9cPSwh4KwlcDxQmQKoELb4EnZW1CScSBHi9HQyCBNyCkgkOBMGcJqz\n"
"Ihq1dGeSf8eca9+Avk5kAQ3yjXK1TI2CDEi0msrXLr9XbgowXiOLLzR+rYkhQz+V\n"
"RnIoBwjnrGoJoz636KS170SZCB9ARNs17WE4IvbJdZrTXNOGaVZCQUUpiLRj4ZSO\n"
"Na/nobI=\n"
"-----END X509 CRL-----";
botan_x509_crl_t bytecrl;
if(!TEST_FFI_INIT(botan_x509_crl_load, (&bytecrl, reinterpret_cast<const uint8_t*>(crl_string), 966))) {
return;
}
botan_x509_crl_t crl;
REQUIRE_FFI_OK(botan_x509_crl_load_file, (&crl, Test::data_file("x509/nist/root.crl").c_str()));
botan_x509_cert_t cert1;
REQUIRE_FFI_OK(botan_x509_cert_load_file, (&cert1, Test::data_file("x509/nist/test01/end.crt").c_str()));
TEST_FFI_RC(-1, botan_x509_is_revoked, (crl, cert1));
TEST_FFI_OK(botan_x509_cert_destroy, (cert1));
botan_x509_cert_t cert2;
REQUIRE_FFI_OK(botan_x509_cert_load_file, (&cert2, Test::data_file("x509/nist/test20/int.crt").c_str()));
TEST_FFI_RC(0, botan_x509_is_revoked, (crl, cert2));
TEST_FFI_RC(-1, botan_x509_is_revoked, (bytecrl, cert2));
TEST_FFI_OK(botan_x509_cert_destroy, (cert2));
TEST_FFI_OK(botan_x509_crl_destroy, (crl));
TEST_FFI_OK(botan_x509_crl_destroy, (bytecrl));
}
};
class FFI_Cert_Validation_Test final : public FFI_Test {
public:
std::string name() const override { return "FFI Cert Validation"; }
void ffi_test(Test::Result& result, botan_rng_t /*unused*/) override {
botan_x509_cert_t root;
int rc;
if(!TEST_FFI_INIT(botan_x509_cert_load_file, (&root, Test::data_file("x509/nist/root.crt").c_str()))) {
return;
}
botan_x509_cert_t end2;
botan_x509_cert_t sub2;
REQUIRE_FFI_OK(botan_x509_cert_load_file, (&end2, Test::data_file("x509/nist/test02/end.crt").c_str()));
REQUIRE_FFI_OK(botan_x509_cert_load_file, (&sub2, Test::data_file("x509/nist/test02/int.crt").c_str()));
TEST_FFI_RC(1, botan_x509_cert_verify, (&rc, end2, &sub2, 1, &root, 1, nullptr, 0, nullptr, 0));
result.confirm("Validation failed", rc == 5002);
result.test_eq("Validation status string", botan_x509_cert_validation_status(rc), "Signature error");
TEST_FFI_RC(1, botan_x509_cert_verify, (&rc, end2, nullptr, 0, &root, 1, nullptr, 0, nullptr, 0));
result.confirm("Validation failed", rc == 3000);
result.test_eq(
"Validation status string", botan_x509_cert_validation_status(rc), "Certificate issuer not found");
botan_x509_cert_t end7;
botan_x509_cert_t sub7;
REQUIRE_FFI_OK(botan_x509_cert_load_file, (&end7, Test::data_file("x509/nist/test07/end.crt").c_str()));
REQUIRE_FFI_OK(botan_x509_cert_load_file, (&sub7, Test::data_file("x509/nist/test07/int.crt").c_str()));
botan_x509_cert_t subs[2] = {sub2, sub7};
TEST_FFI_RC(1, botan_x509_cert_verify, (&rc, end7, subs, 2, &root, 1, nullptr, 0, nullptr, 0));
result.confirm("Validation failed", rc == 1001);
result.test_eq("Validation status string",
botan_x509_cert_validation_status(rc),
"Hash function used is considered too weak for security");
TEST_FFI_RC(0, botan_x509_cert_verify, (&rc, end7, subs, 2, &root, 1, nullptr, 80, nullptr, 0));
result.confirm("Validation passed", rc == 0);
result.test_eq("Validation status string", botan_x509_cert_validation_status(rc), "Verified");
TEST_FFI_RC(1,
botan_x509_cert_verify_with_crl,
(&rc, end7, subs, 2, nullptr, 0, nullptr, 0, "x509/farce", 0, nullptr, 0));
result.confirm("Validation failed", rc == 3000);
result.test_eq(
"Validation status string", botan_x509_cert_validation_status(rc), "Certificate issuer not found");
botan_x509_crl_t rootcrl;
REQUIRE_FFI_OK(botan_x509_crl_load_file, (&rootcrl, Test::data_file("x509/nist/root.crl").c_str()));
TEST_FFI_RC(
0, botan_x509_cert_verify_with_crl, (&rc, end7, subs, 2, &root, 1, &rootcrl, 1, nullptr, 80, nullptr, 0));
result.confirm("Validation passed", rc == 0);
result.test_eq("Validation status string", botan_x509_cert_validation_status(rc), "Verified");
botan_x509_cert_t end20;
botan_x509_cert_t sub20;
botan_x509_crl_t sub20crl;
REQUIRE_FFI_OK(botan_x509_cert_load_file, (&end20, Test::data_file("x509/nist/test20/end.crt").c_str()));
REQUIRE_FFI_OK(botan_x509_cert_load_file, (&sub20, Test::data_file("x509/nist/test20/int.crt").c_str()));
REQUIRE_FFI_OK(botan_x509_crl_load_file, (&sub20crl, Test::data_file("x509/nist/test20/int.crl").c_str()));
botan_x509_crl_t crls[2] = {sub20crl, rootcrl};
TEST_FFI_RC(
1, botan_x509_cert_verify_with_crl, (&rc, end20, &sub20, 1, &root, 1, crls, 2, nullptr, 80, nullptr, 0));
result.confirm("Validation failed", rc == 5000);
result.test_eq("Validation status string", botan_x509_cert_validation_status(rc), "Certificate is revoked");
TEST_FFI_OK(botan_x509_cert_destroy, (end2));
TEST_FFI_OK(botan_x509_cert_destroy, (sub2));
TEST_FFI_OK(botan_x509_cert_destroy, (end7));
TEST_FFI_OK(botan_x509_cert_destroy, (sub7));
TEST_FFI_OK(botan_x509_cert_destroy, (end20));
TEST_FFI_OK(botan_x509_cert_destroy, (sub20));
TEST_FFI_OK(botan_x509_crl_destroy, (sub20crl));
TEST_FFI_OK(botan_x509_cert_destroy, (root));
TEST_FFI_OK(botan_x509_crl_destroy, (rootcrl));
}
};
class FFI_ECDSA_Certificate_Test final : public FFI_Test {
public:
std::string name() const override { return "FFI ECDSA cert"; }
void ffi_test(Test::Result& result, botan_rng_t /*unused*/) override {
botan_x509_cert_t cert;
if(TEST_FFI_INIT(botan_x509_cert_load_file,
(&cert, Test::data_file("x509/ecc/CSCA.CSCA.csca-germany.1.crt").c_str()))) {
size_t date_len = 0;
TEST_FFI_RC(
BOTAN_FFI_ERROR_INSUFFICIENT_BUFFER_SPACE, botan_x509_cert_get_time_starts, (cert, nullptr, &date_len));
date_len = 8;
TEST_FFI_RC(
BOTAN_FFI_ERROR_INSUFFICIENT_BUFFER_SPACE, botan_x509_cert_get_time_starts, (cert, nullptr, &date_len));
std::string date(date_len - 1, '0');
TEST_FFI_OK(botan_x509_cert_get_time_starts, (cert, &date[0], &date_len));
result.test_eq("cert valid from", date, "070719152718Z");
date_len = 0;
TEST_FFI_RC(
BOTAN_FFI_ERROR_INSUFFICIENT_BUFFER_SPACE, botan_x509_cert_get_time_expires, (cert, nullptr, &date_len));
date.resize(date_len - 1);
TEST_FFI_OK(botan_x509_cert_get_time_expires, (cert, &date[0], &date_len));
result.test_eq("cert valid until", date, "280119151800Z");
uint64_t not_before = 0;
TEST_FFI_OK(botan_x509_cert_not_before, (cert, ¬_before));
result.confirm("cert not before", not_before == 1184858838);
uint64_t not_after = 0;
TEST_FFI_OK(botan_x509_cert_not_after, (cert, ¬_after));
result.confirm("cert not after", not_after == 1831907880);
size_t serial_len = 0;
TEST_FFI_RC(BOTAN_FFI_ERROR_INSUFFICIENT_BUFFER_SPACE,
botan_x509_cert_get_serial_number,
(cert, nullptr, &serial_len));
std::vector<uint8_t> serial(serial_len);
TEST_FFI_OK(botan_x509_cert_get_serial_number, (cert, serial.data(), &serial_len));
result.test_eq("cert serial length", serial.size(), 1);
result.test_int_eq(serial[0], 1, "cert serial");
size_t fingerprint_len = 0;
TEST_FFI_RC(BOTAN_FFI_ERROR_INSUFFICIENT_BUFFER_SPACE,
botan_x509_cert_get_fingerprint,
(cert, "SHA-256", nullptr, &fingerprint_len));
std::vector<uint8_t> fingerprint(fingerprint_len);
TEST_FFI_OK(botan_x509_cert_get_fingerprint, (cert, "SHA-256", fingerprint.data(), &fingerprint_len));
result.test_eq(
"cert fingerprint",
reinterpret_cast<const char*>(fingerprint.data()),
"3B:6C:99:1C:D6:5A:51:FC:EB:17:E3:AA:F6:3C:1A:DA:14:1F:82:41:30:6F:64:EE:FF:63:F3:1F:D6:07:14:9F");
size_t key_id_len = 0;
TEST_FFI_RC(BOTAN_FFI_ERROR_INSUFFICIENT_BUFFER_SPACE,
botan_x509_cert_get_authority_key_id,
(cert, nullptr, &key_id_len));
std::vector<uint8_t> key_id(key_id_len);
TEST_FFI_OK(botan_x509_cert_get_authority_key_id, (cert, key_id.data(), &key_id_len));
result.test_eq("cert authority key id",
Botan::hex_encode(key_id.data(), key_id.size(), true),
"0096452DE588F966C4CCDF161DD1F3F5341B71E7");
key_id_len = 0;
TEST_FFI_RC(BOTAN_FFI_ERROR_INSUFFICIENT_BUFFER_SPACE,
botan_x509_cert_get_subject_key_id,
(cert, nullptr, &key_id_len));
key_id.resize(key_id_len);
TEST_FFI_OK(botan_x509_cert_get_subject_key_id, (cert, key_id.data(), &key_id_len));
result.test_eq("cert subject key id",
Botan::hex_encode(key_id.data(), key_id.size(), true),
"0096452DE588F966C4CCDF161DD1F3F5341B71E7");
size_t pubkey_len = 0;
TEST_FFI_RC(BOTAN_FFI_ERROR_INSUFFICIENT_BUFFER_SPACE,
botan_x509_cert_get_public_key_bits,
(cert, nullptr, &pubkey_len));
std::vector<uint8_t> pubkey(pubkey_len);
TEST_FFI_OK(botan_x509_cert_get_public_key_bits, (cert, pubkey.data(), &pubkey_len));
botan_pubkey_t pub;
if(TEST_FFI_OK(botan_x509_cert_get_public_key, (cert, &pub))) {
TEST_FFI_RC(1, botan_pubkey_ecc_key_used_explicit_encoding, (pub));
TEST_FFI_OK(botan_pubkey_destroy, (pub));
}
size_t dn_len = 0;
TEST_FFI_RC(BOTAN_FFI_ERROR_INSUFFICIENT_BUFFER_SPACE,
botan_x509_cert_get_issuer_dn,
(cert, "Name", 0, nullptr, &dn_len));
std::vector<uint8_t> dn(dn_len);
TEST_FFI_OK(botan_x509_cert_get_issuer_dn, (cert, "Name", 0, dn.data(), &dn_len));
result.test_eq("issuer dn", reinterpret_cast<const char*>(dn.data()), "csca-germany");
dn_len = 0;
TEST_FFI_RC(BOTAN_FFI_ERROR_INSUFFICIENT_BUFFER_SPACE,
botan_x509_cert_get_subject_dn,
(cert, "Name", 0, nullptr, &dn_len));
dn.resize(dn_len);
TEST_FFI_OK(botan_x509_cert_get_subject_dn, (cert, "Name", 0, dn.data(), &dn_len));
result.test_eq("subject dn", reinterpret_cast<const char*>(dn.data()), "csca-germany");
size_t printable_len = 0;
TEST_FFI_RC(
BOTAN_FFI_ERROR_INSUFFICIENT_BUFFER_SPACE, botan_x509_cert_to_string, (cert, nullptr, &printable_len));
std::string printable(printable_len - 1, '0');
TEST_FFI_OK(botan_x509_cert_to_string, (cert, &printable[0], &printable_len));
TEST_FFI_RC(0, botan_x509_cert_allowed_usage, (cert, KEY_CERT_SIGN));
TEST_FFI_RC(0, botan_x509_cert_allowed_usage, (cert, CRL_SIGN));
TEST_FFI_RC(1, botan_x509_cert_allowed_usage, (cert, DIGITAL_SIGNATURE));
TEST_FFI_OK(botan_x509_cert_destroy, (cert));
}
}
};
class FFI_PKCS_Hashid_Test final : public FFI_Test {
public:
std::string name() const override { return "FFI PKCS hash id"; }
void ffi_test(Test::Result& result, botan_rng_t /*unused*/) override {
std::vector<uint8_t> hash_id(64);
size_t hash_id_len = hash_id.size();
if(TEST_FFI_INIT(botan_pkcs_hash_id, ("SHA-256", hash_id.data(), &hash_id_len))) {
result.test_eq("Expected SHA-256 PKCS hash id len", hash_id_len, 19);
hash_id.resize(hash_id_len);
result.test_eq("Expected SHA_256 PKCS hash id", hash_id, "3031300D060960864801650304020105000420");
hash_id_len = 3; // too short
TEST_FFI_RC(BOTAN_FFI_ERROR_INSUFFICIENT_BUFFER_SPACE,
botan_pkcs_hash_id,
("SHA-256", hash_id.data(), &hash_id_len));
}
}
};
class FFI_CBC_Cipher_Test final : public FFI_Test {
public:
std::string name() const override { return "FFI CBC cipher"; }
void ffi_test(Test::Result& result, botan_rng_t /*unused*/) override {
botan_cipher_t cipher_encrypt, cipher_decrypt;
if(TEST_FFI_INIT(botan_cipher_init, (&cipher_encrypt, "AES-128/CBC/PKCS7", BOTAN_CIPHER_INIT_FLAG_ENCRYPT))) {
size_t min_keylen = 0;
size_t max_keylen = 0;
TEST_FFI_OK(botan_cipher_query_keylen, (cipher_encrypt, &min_keylen, &max_keylen));
result.test_int_eq(min_keylen, 16, "Min key length");
result.test_int_eq(max_keylen, 16, "Max key length");
// from https://github.com/geertj/bluepass/blob/master/tests/vectors/aes-cbc-pkcs7.txt
const std::vector<uint8_t> plaintext =
Botan::hex_decode("0397f4f6820b1f9386f14403be5ac16e50213bd473b4874b9bcbf5f318ee686b1d");
const std::vector<uint8_t> symkey = Botan::hex_decode("898be9cc5004ed0fa6e117c9a3099d31");
const std::vector<uint8_t> nonce = Botan::hex_decode("9dea7621945988f96491083849b068df");
const std::vector<uint8_t> exp_ciphertext = Botan::hex_decode(
"e232cd6ef50047801ee681ec30f61d53cfd6b0bca02fd03c1b234baa10ea82ac9dab8b960926433a19ce6dea08677e34");
size_t output_written = 0;
size_t input_consumed = 0;
// Test that after clear or final the object can be reused
for(size_t r = 0; r != 2; ++r) {
size_t ctext_len;
TEST_FFI_OK(botan_cipher_output_length, (cipher_encrypt, plaintext.size(), &ctext_len));
result.test_eq("Expected size of padded message", ctext_len, plaintext.size() + 15);
std::vector<uint8_t> ciphertext(ctext_len);
size_t update_granularity = 0;
size_t ideal_granularity = 0;
size_t taglen = 0;
TEST_FFI_OK(botan_cipher_get_update_granularity, (cipher_encrypt, &update_granularity));
TEST_FFI_OK(botan_cipher_get_ideal_update_granularity, (cipher_encrypt, &ideal_granularity));
TEST_FFI_OK(botan_cipher_get_tag_length, (cipher_encrypt, &taglen));
result.test_eq(
"ideal granularity is a multiple of update granularity", ideal_granularity % update_granularity, 0);
result.test_eq("not an AEAD, hence no tag", taglen, 0);
TEST_FFI_OK(botan_cipher_set_key, (cipher_encrypt, symkey.data(), symkey.size()));
TEST_FFI_OK(botan_cipher_start, (cipher_encrypt, nonce.data(), nonce.size()));
TEST_FFI_OK(botan_cipher_update,
(cipher_encrypt,
0,
ciphertext.data(),
ciphertext.size(),
&output_written,
plaintext.data(),
plaintext.size(),
&input_consumed));
TEST_FFI_OK(botan_cipher_clear, (cipher_encrypt));
TEST_FFI_OK(botan_cipher_set_key, (cipher_encrypt, symkey.data(), symkey.size()));
TEST_FFI_OK(botan_cipher_start, (cipher_encrypt, nonce.data(), nonce.size()));
TEST_FFI_OK(botan_cipher_update,
(cipher_encrypt,
BOTAN_CIPHER_UPDATE_FLAG_FINAL,
ciphertext.data(),
ciphertext.size(),
&output_written,
plaintext.data(),
plaintext.size(),
&input_consumed));
ciphertext.resize(output_written);
result.test_eq("AES/CBC ciphertext", ciphertext, exp_ciphertext);
if(TEST_FFI_OK(botan_cipher_init, (&cipher_decrypt, "AES-128/CBC", BOTAN_CIPHER_INIT_FLAG_DECRYPT))) {
size_t ptext_len;
TEST_FFI_OK(botan_cipher_output_length, (cipher_decrypt, ciphertext.size(), &ptext_len));
std::vector<uint8_t> decrypted(ptext_len);
TEST_FFI_RC(0, botan_cipher_is_authenticated, (cipher_encrypt));
TEST_FFI_OK(botan_cipher_get_update_granularity, (cipher_decrypt, &update_granularity));
TEST_FFI_OK(botan_cipher_get_ideal_update_granularity, (cipher_decrypt, &ideal_granularity));
TEST_FFI_OK(botan_cipher_get_tag_length, (cipher_decrypt, &taglen));
result.test_eq("ideal granularity is a multiple of update granularity (decrypt)",
ideal_granularity % update_granularity,
0);
result.test_eq("not an AEAD, hence no tag (decrypt)", taglen, 0);
TEST_FFI_OK(botan_cipher_set_key, (cipher_decrypt, symkey.data(), symkey.size()));
TEST_FFI_OK(botan_cipher_start, (cipher_decrypt, nonce.data(), nonce.size()));
TEST_FFI_OK(botan_cipher_update,
(cipher_decrypt,
BOTAN_CIPHER_UPDATE_FLAG_FINAL,
decrypted.data(),
decrypted.size(),
&output_written,
ciphertext.data(),
ciphertext.size(),
&input_consumed));
decrypted.resize(output_written);
result.test_eq("AES/CBC plaintext", decrypted, plaintext);
TEST_FFI_OK(botan_cipher_destroy, (cipher_decrypt));
}
}
TEST_FFI_OK(botan_cipher_destroy, (cipher_encrypt));
}
}
};
class FFI_GCM_Test final : public FFI_Test {
public:
std::string name() const override { return "FFI GCM"; }
void ffi_test(Test::Result& result, botan_rng_t /*unused*/) override {
botan_cipher_t cipher_encrypt, cipher_decrypt;
if(TEST_FFI_INIT(botan_cipher_init, (&cipher_encrypt, "AES-128/GCM", BOTAN_CIPHER_INIT_FLAG_ENCRYPT))) {
char namebuf[18];
size_t name_len = 15;
TEST_FFI_FAIL("output buffer too short", botan_cipher_name, (cipher_encrypt, namebuf, &name_len));
result.test_eq("name len", name_len, 16);
name_len = sizeof(namebuf);
if(TEST_FFI_OK(botan_cipher_name, (cipher_encrypt, namebuf, &name_len))) {
result.test_eq("name len", name_len, 16);
result.test_eq("name", std::string(namebuf), "AES-128/GCM(16)");
}
size_t min_keylen = 0;
size_t max_keylen = 0;
size_t nonce_len = 0;
size_t tag_len = 0;
size_t update_granularity = 0;
size_t ideal_granularity = 0;
TEST_FFI_OK(botan_cipher_get_update_granularity, (cipher_encrypt, &update_granularity));
TEST_FFI_OK(botan_cipher_get_ideal_update_granularity, (cipher_encrypt, &ideal_granularity));
result.test_eq(
"ideal granularity is a multiple of update granularity", ideal_granularity % update_granularity, 0);
TEST_FFI_OK(botan_cipher_query_keylen, (cipher_encrypt, &min_keylen, &max_keylen));
result.test_int_eq(min_keylen, 16, "Min key length");
result.test_int_eq(max_keylen, 16, "Max key length");
TEST_FFI_OK(botan_cipher_get_default_nonce_length, (cipher_encrypt, &nonce_len));
result.test_int_eq(nonce_len, 12, "Expected default GCM nonce length");
TEST_FFI_OK(botan_cipher_get_tag_length, (cipher_encrypt, &tag_len));
result.test_int_eq(tag_len, 16, "Expected GCM tag length");
TEST_FFI_RC(1, botan_cipher_is_authenticated, (cipher_encrypt));
TEST_FFI_RC(1, botan_cipher_valid_nonce_length, (cipher_encrypt, 12));
// GCM accepts any nonce size except zero
TEST_FFI_RC(0, botan_cipher_valid_nonce_length, (cipher_encrypt, 0));
TEST_FFI_RC(1, botan_cipher_valid_nonce_length, (cipher_encrypt, 1));
TEST_FFI_RC(1, botan_cipher_valid_nonce_length, (cipher_encrypt, 100009));
// NIST test vector
const std::vector<uint8_t> plaintext = Botan::hex_decode(
"D9313225F88406E5A55909C5AFF5269A86A7A9531534F7DA2E4C303D8A318A721C3C0C95956809532FCF0E2449A6B525B16AEDF5AA0DE657BA637B39");
const std::vector<uint8_t> symkey = Botan::hex_decode("FEFFE9928665731C6D6A8F9467308308");
const std::vector<uint8_t> nonce = Botan::hex_decode("CAFEBABEFACEDBADDECAF888");
const std::vector<uint8_t> exp_ciphertext = Botan::hex_decode(
"42831EC2217774244B7221B784D0D49CE3AA212F2C02A4E035C17E2329ACA12E21D514B25466931C7D8F6A5AAC84AA051BA30B396A0AAC973D58E0915BC94FBC3221A5DB94FAE95AE7121A47");
const std::vector<uint8_t> aad = Botan::hex_decode("FEEDFACEDEADBEEFFEEDFACEDEADBEEFABADDAD2");
std::vector<uint8_t> ciphertext(tag_len + plaintext.size());
size_t output_written = 0;
size_t input_consumed = 0;
// Test that after clear or final the object can be reused
for(size_t r = 0; r != 2; ++r) {
TEST_FFI_OK(botan_cipher_set_key, (cipher_encrypt, symkey.data(), symkey.size()));
// First use a nonce of the AAD, and ensure reset works
TEST_FFI_OK(botan_cipher_start, (cipher_encrypt, aad.data(), aad.size()));
TEST_FFI_OK(botan_cipher_reset, (cipher_encrypt));
TEST_FFI_OK(botan_cipher_start, (cipher_encrypt, nonce.data(), nonce.size()));
TEST_FFI_OK(botan_cipher_update,
(cipher_encrypt,
0,
ciphertext.data(),
ciphertext.size(),
&output_written,
plaintext.data(),
plaintext.size(),
&input_consumed));
TEST_FFI_OK(botan_cipher_clear, (cipher_encrypt));
TEST_FFI_OK(botan_cipher_set_key, (cipher_encrypt, symkey.data(), symkey.size()));
TEST_FFI_OK(botan_cipher_set_associated_data, (cipher_encrypt, aad.data(), aad.size()));
TEST_FFI_OK(botan_cipher_start, (cipher_encrypt, nonce.data(), nonce.size()));
TEST_FFI_OK(botan_cipher_update,
(cipher_encrypt,
BOTAN_CIPHER_UPDATE_FLAG_FINAL,
ciphertext.data(),
ciphertext.size(),
&output_written,
plaintext.data(),
plaintext.size(),
&input_consumed));
ciphertext.resize(output_written);
result.test_eq("AES/GCM ciphertext", ciphertext, exp_ciphertext);
if(TEST_FFI_OK(botan_cipher_init, (&cipher_decrypt, "AES-128/GCM", BOTAN_CIPHER_INIT_FLAG_DECRYPT))) {
std::vector<uint8_t> decrypted(plaintext.size());
TEST_FFI_OK(botan_cipher_get_update_granularity, (cipher_decrypt, &update_granularity));
TEST_FFI_OK(botan_cipher_get_ideal_update_granularity, (cipher_decrypt, &ideal_granularity));
result.test_eq("ideal granularity is a multiple of update granularity (decrypt)",
ideal_granularity % update_granularity,
0);
TEST_FFI_OK(botan_cipher_set_key, (cipher_decrypt, symkey.data(), symkey.size()));
TEST_FFI_OK(botan_cipher_set_associated_data, (cipher_decrypt, aad.data(), aad.size()));
TEST_FFI_OK(botan_cipher_start, (cipher_decrypt, nonce.data(), nonce.size()));
TEST_FFI_OK(botan_cipher_update,
(cipher_decrypt,
BOTAN_CIPHER_UPDATE_FLAG_FINAL,
decrypted.data(),
decrypted.size(),
&output_written,
ciphertext.data(),