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/*
* (C) 2014,2015 Jack Lloyd
* (C) 2018 Ribose Inc
*
* Botan is released under the Simplified BSD License (see license.txt)
*/
#include "tests.h"
#if defined(BOTAN_HAS_PBKDF)
#include <botan/pbkdf.h>
#include <botan/pwdhash.h>
#endif
#if defined(BOTAN_HAS_PGP_S2K)
#include <botan/pgp_s2k.h>
#endif
#if defined(BOTAN_HAS_SCRYPT)
#include <botan/scrypt.h>
#endif
namespace Botan_Tests {
namespace {
#if defined(BOTAN_HAS_PBKDF)
class PBKDF_KAT_Tests final : public Text_Based_Test
{
public:
PBKDF_KAT_Tests() : Text_Based_Test("pbkdf", "Iterations,Salt,Passphrase,Output", "OutputLen") {}
Test::Result run_one_test(const std::string& pbkdf_name, const VarMap& vars) override
{
const size_t iterations = vars.get_req_sz("Iterations");
const std::vector<uint8_t> salt = vars.get_req_bin("Salt");
const std::string passphrase = vars.get_req_str("Passphrase");
const std::vector<uint8_t> expected = vars.get_req_bin("Output");
const size_t outlen = vars.get_opt_sz("OutputLen", expected.size());
Test::Result result(pbkdf_name);
std::unique_ptr<Botan::PBKDF> pbkdf(Botan::PBKDF::create(pbkdf_name));
if(!pbkdf)
{
result.note_missing(pbkdf_name);
return result;
}
result.test_eq("Expected name", pbkdf->name(), pbkdf_name);
const Botan::secure_vector<uint8_t> derived =
pbkdf->derive_key(outlen, passphrase, salt.data(), salt.size(), iterations).bits_of();
result.test_eq("derived key", derived, expected);
auto pwdhash_fam = Botan::PasswordHashFamily::create(pbkdf_name);
if(!pwdhash_fam)
{
result.note_missing("No PasswordHashFamily for " + pbkdf_name);
return result;
}
auto pwdhash = pwdhash_fam->from_params(iterations);
std::vector<uint8_t> pwdhash_derived(outlen);
pwdhash->derive_key(pwdhash_derived.data(), pwdhash_derived.size(),
passphrase.c_str(), passphrase.size(),
salt.data(), salt.size());
result.test_eq("pwdhash derived key", pwdhash_derived, expected);
return result;
}
};
BOTAN_REGISTER_TEST("pbkdf", PBKDF_KAT_Tests);
class Pwdhash_Tests : public Test
{
public:
std::vector<Test::Result> run() override
{
std::vector<Test::Result> results;
for(std::string pwdhash : { "Scrypt", "PBKDF2(SHA-256)", "OpenPGP-S2K(SHA-384)"})
{
Test::Result result("Pwdhash " + pwdhash);
auto pwdhash_fam = Botan::PasswordHashFamily::create(pwdhash);
if(pwdhash_fam)
{
const std::vector<uint8_t> salt(8);
const std::string password = "test";
auto pwdhash_tune = pwdhash_fam->tune(32, std::chrono::milliseconds(50));
std::vector<uint8_t> output1(32);
pwdhash_tune->derive_key(output1.data(), output1.size(),
password.c_str(), password.size(),
salt.data(), salt.size());
std::unique_ptr<Botan::PasswordHash> pwhash;
if(pwdhash_fam->name() == "Scrypt")
{
pwhash = pwdhash_fam->from_params(pwdhash_tune->memory_param(),
pwdhash_tune->iterations(),
pwdhash_tune->parallelism());
}
else
{
pwhash = pwdhash_fam->from_params(pwdhash_tune->iterations());
}
std::vector<uint8_t> output2(32);
pwdhash_tune->derive_key(output2.data(), output2.size(),
password.c_str(), password.size(),
salt.data(), salt.size());
result.test_eq("PasswordHash produced same output when run with same params",
output1, output2);
//auto pwdhash_tuned = pwdhash_fam->tune(32, std::chrono::milliseconds(150));
}
results.push_back(result);
}
return results;
}
};
BOTAN_REGISTER_TEST("pwdhash", Pwdhash_Tests);
#endif
#if defined(BOTAN_HAS_SCRYPT)
class Scrypt_KAT_Tests final : public Text_Based_Test
{
public:
Scrypt_KAT_Tests() : Text_Based_Test("scrypt.vec", "Passphrase,Salt,N,R,P,Output") {}
Test::Result run_one_test(const std::string&, const VarMap& vars) override
{
const size_t N = vars.get_req_sz("N");
const size_t R = vars.get_req_sz("R");
const size_t P = vars.get_req_sz("P");
const std::vector<uint8_t> salt = vars.get_req_bin("Salt");
const std::string passphrase = vars.get_req_str("Passphrase");
const std::vector<uint8_t> expected = vars.get_req_bin("Output");
Test::Result result("scrypt");
if(N >= 1048576 && Test::run_long_tests() == false)
return result;
std::vector<uint8_t> output(expected.size());
Botan::scrypt(output.data(), output.size(),
passphrase, salt.data(), salt.size(),
N, R, P);
result.test_eq("derived key", output, expected);
auto pwdhash_fam = Botan::PasswordHashFamily::create("Scrypt");
if(!pwdhash_fam)
{
result.test_failure("Scrypt is missing PasswordHashFamily");
return result;
}
auto pwdhash = pwdhash_fam->from_params(N, R, P);
std::vector<uint8_t> pwdhash_derived(expected.size());
pwdhash->derive_key(pwdhash_derived.data(), pwdhash_derived.size(),
passphrase.c_str(), passphrase.size(),
salt.data(), salt.size());
result.test_eq("pwdhash derived key", pwdhash_derived, expected);
return result;
}
};
BOTAN_REGISTER_TEST("scrypt", Scrypt_KAT_Tests);
#endif
#if defined(BOTAN_HAS_PGP_S2K)
class PGP_S2K_Iter_Test final : public Test
{
public:
std::vector<Test::Result> run() override
{
Test::Result result("PGP_S2K iteration encoding");
// The maximum representable iteration count
const size_t max_iter = 65011712;
result.test_eq("Encoding of large value accepted",
Botan::RFC4880_encode_count(max_iter * 2), size_t(255));
result.test_eq("Encoding of small value accepted",
Botan::RFC4880_encode_count(0), size_t(0));
for(size_t c = 0; c != 256; ++c)
{
const size_t dec = Botan::RFC4880_decode_count(static_cast<uint8_t>(c));
const size_t comp_dec = (16 + (c & 0x0F)) << ((c >> 4) + 6);
result.test_eq("Decoded value matches PGP formula", dec, comp_dec);
}
uint8_t last_enc = 0;
for(size_t i = 0; i <= max_iter; i += 64)
{
const uint8_t enc = Botan::RFC4880_encode_count(i);
result.test_lte("Encoded value non-decreasing", last_enc, enc);
/*
The iteration count as encoded may not be exactly the
value requested, but should never be less
*/
const size_t dec = Botan::RFC4880_decode_count(enc);
result.test_gte("Decoded value is >= requested", dec, i);
last_enc = enc;
}
return std::vector<Test::Result>{result};
}
};
BOTAN_REGISTER_TEST("pgp_s2k_iter", PGP_S2K_Iter_Test);
#endif
}
}
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