20579846577

Committed 29 Dec 2025 06:24PM UTC coverage: 90.415% (+0.2%) from 90.243%

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Merge pull request #5167 from randombit/jack/src-size-reductions

Changes to reduce unnecessary inclusions

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/src/tests/test_ecdsa.cpp

/*
* (C) 2014,2015 Jack Lloyd
* (C) 2017 René Korthaus, Rohde & Schwarz Cybersecurity
*
* Botan is released under the Simplified BSD License (see license.txt)
*/

#include "tests.h"

#if defined(BOTAN_HAS_ECDSA)
   #include "test_pubkey.h"
   #include <botan/ecdsa.h>
   #include <botan/hash.h>
   #include <botan/pk_algs.h>
   #include <botan/pkcs8.h>
   #include <botan/rng.h>
#endif

namespace Botan_Tests {

namespace {

#if defined(BOTAN_HAS_ECDSA)

class ECDSA_Verification_Tests final : public PK_Signature_Verification_Test {
   public:
      ECDSA_Verification_Tests() :
            PK_Signature_Verification_Test("ECDSA", "pubkey/ecdsa_verify.vec", "Group,Px,Py,Msg,Signature", "Valid") {}

      bool clear_between_callbacks() const override { return false; }

      bool skip_this_test(const std::string& /*header*/, const VarMap& vars) override {
         return !Botan::EC_Group::supports_named_group(vars.get_req_str("Group"));
      }

      std::unique_ptr<Botan::Public_Key> load_public_key(const VarMap& vars) override {
         const std::string group_id = vars.get_req_str("Group");
         const BigInt px = vars.get_req_bn("Px");
         const BigInt py = vars.get_req_bn("Py");
         const auto group = Botan::EC_Group::from_name(group_id);

         const auto public_key = Botan::EC_AffinePoint::from_bigint_xy(group, px, py).value();

         return std::make_unique<Botan::ECDSA_PublicKey>(group, public_key);
      }

      std::string default_padding(const VarMap& /*unused*/) const override { return "Raw"; }
};

class ECDSA_Wycheproof_Verification_Tests final : public PK_Signature_Verification_Test {
   public:
      ECDSA_Wycheproof_Verification_Tests() :
            PK_Signature_Verification_Test(
               "ECDSA", "pubkey/ecdsa_wycheproof.vec", "Group,Px,Py,Hash,Msg,Signature,Valid") {}

      bool clear_between_callbacks() const override { return false; }

      Botan::Signature_Format sig_format() const override { return Botan::Signature_Format::DerSequence; }

      bool test_random_invalid_sigs() const override { return false; }

      bool skip_this_test(const std::string& /*header*/, const VarMap& vars) override {
         return !Botan::EC_Group::supports_named_group(vars.get_req_str("Group"));
      }

      std::unique_ptr<Botan::Public_Key> load_public_key(const VarMap& vars) override {
         const std::string group_id = vars.get_req_str("Group");
         const BigInt px = vars.get_req_bn("Px");
         const BigInt py = vars.get_req_bn("Py");
         const auto group = Botan::EC_Group::from_name(group_id);

         const auto public_key = Botan::EC_AffinePoint::from_bigint_xy(group, px, py).value();

         return std::make_unique<Botan::ECDSA_PublicKey>(group, public_key);
      }

      std::string default_padding(const VarMap& vars) const override { return vars.get_req_str("Hash"); }
};

class ECDSA_Signature_KAT_Tests final : public PK_Signature_Generation_Test {
   public:
      ECDSA_Signature_KAT_Tests() :
            PK_Signature_Generation_Test("ECDSA",
   #if defined(BOTAN_HAS_RFC6979_GENERATOR)
                                         "pubkey/ecdsa_rfc6979.vec",
                                         "Group,X,Hash,Msg,Signature") {
      }
   #else
                                         "pubkey/ecdsa_prob.vec",
                                         "Group,X,Hash,Msg,Nonce,Signature") {
      }
   #endif

      bool clear_between_callbacks() const override { return false; }

      bool skip_this_test(const std::string& /*header*/, const VarMap& vars) override {
         return !Botan::EC_Group::supports_named_group(vars.get_req_str("Group"));
      }

      std::unique_ptr<Botan::Private_Key> load_private_key(const VarMap& vars) override {
         const std::string group_id = vars.get_req_str("Group");
         const BigInt x = vars.get_req_bn("X");
         const auto group = Botan::EC_Group::from_name(group_id);

         return std::make_unique<Botan::ECDSA_PrivateKey>(this->rng(), group, x);
      }

      std::string default_padding(const VarMap& vars) const override { return vars.get_req_str("Hash"); }

   #if !defined(BOTAN_HAS_RFC6979_GENERATOR)
      std::unique_ptr<Botan::RandomNumberGenerator> test_rng(const std::vector<uint8_t>& nonce) const override {
         // probabilistic ecdsa signature generation extracts more random than just the nonce,
         // but the nonce is extracted first
         return std::make_unique<Fixed_Output_Position_RNG>(nonce, 1, this->rng());
      }
   #endif
};

class ECDSA_KAT_Verification_Tests final : public PK_Signature_Verification_Test {
   public:
      ECDSA_KAT_Verification_Tests() :
            PK_Signature_Verification_Test("ECDSA",
   #if !defined(BOTAN_HAS_RFC6979_GENERATOR)
                                           "pubkey/ecdsa_rfc6979.vec",
                                           "Group,X,Hash,Msg,Signature") {
      }
   #else
                                           "pubkey/ecdsa_prob.vec",
                                           "Group,X,Hash,Msg,Nonce,Signature") {
      }
   #endif

      bool clear_between_callbacks() const override { return false; }

      bool skip_this_test(const std::string& /*header*/, const VarMap& vars) override {
         return !Botan::EC_Group::supports_named_group(vars.get_req_str("Group"));
      }

      std::unique_ptr<Botan::Public_Key> load_public_key(const VarMap& vars) override {
         const std::string group_id = vars.get_req_str("Group");
         const BigInt x = vars.get_req_bn("X");
         const auto group = Botan::EC_Group::from_name(group_id);

         const Botan::ECDSA_PrivateKey priv_key(this->rng(), group, x);

         return priv_key.public_key();
      }

      std::string default_padding(const VarMap& vars) const override { return vars.get_req_str("Hash"); }
};

class ECDSA_Sign_Verify_DER_Test final : public PK_Sign_Verify_DER_Test {
   public:
      ECDSA_Sign_Verify_DER_Test() : PK_Sign_Verify_DER_Test("ECDSA", "SHA-512") {}

      std::unique_ptr<Botan::Private_Key> key() override {
         return Botan::create_private_key("ECDSA", this->rng(), "secp256r1");
      }
};

class ECDSA_Keygen_Tests final : public PK_Key_Generation_Test {
   public:
      std::vector<std::string> keygen_params() const override {
         const auto& grp = Botan::EC_Group::known_named_groups();
         return std::vector<std::string>(grp.begin(), grp.end());
      }

      std::string algo_name() const override { return "ECDSA"; }

      std::unique_ptr<Botan::Public_Key> public_key_from_raw(std::string_view keygen_params,
                                                             std::string_view /* provider */,
                                                             std::span<const uint8_t> raw_pk) const override {
         const auto group = Botan::EC_Group(keygen_params);
         const auto public_key = Botan::EC_AffinePoint(group, raw_pk);
         return std::make_unique<Botan::ECDSA_PublicKey>(group, public_key);
      }
};

class ECDSA_Keygen_Stability_Tests final : public PK_Key_Generation_Stability_Test {
   public:
      ECDSA_Keygen_Stability_Tests() : PK_Key_Generation_Stability_Test("ECDSA", "pubkey/ecdsa_keygen.vec") {}
};

   #if defined(BOTAN_HAS_EMSA_RAW)

class ECDSA_Key_Recovery_Tests final : public Text_Based_Test {
   public:
      ECDSA_Key_Recovery_Tests() : Text_Based_Test("pubkey/ecdsa_key_recovery.vec", "Group,Msg,R,S,V,Pubkey") {}

      bool skip_this_test(const std::string& /*header*/, const VarMap& vars) override {
         return !Botan::EC_Group::supports_named_group(vars.get_req_str("Group"));
      }

      Test::Result run_one_test(const std::string& /*header*/, const VarMap& vars) override {
         Test::Result result("ECDSA key recovery");

         const std::string group_id = vars.get_req_str("Group");
         const auto group = Botan::EC_Group::from_name(group_id);

         const BigInt R = vars.get_req_bn("R");
         const BigInt S = vars.get_req_bn("S");
         const uint8_t V = vars.get_req_u8("V");
         const std::vector<uint8_t> msg = vars.get_req_bin("Msg");
         const auto expected_pubkey = vars.get_req_bin("Pubkey");

         try {
            const Botan::ECDSA_PublicKey pubkey(group, msg, R, S, V);
            result.test_eq("Pubkey X coordinate", pubkey.public_key_bits(), expected_pubkey);

            const uint8_t computed_V = pubkey.recovery_param(msg, R, S);
            result.test_eq("Recovery param is correct", static_cast<size_t>(computed_V), static_cast<size_t>(V));

            Botan::PK_Verifier verifier(pubkey, "Raw");

            auto sig = Botan::BigInt::encode_fixed_length_int_pair(R, S, group.get_order_bytes());

            result.confirm("Signature verifies", verifier.verify_message(msg, sig));
         } catch(Botan::Exception& e) {
            result.test_failure("Failed to recover ECDSA public key", e.what());
         }

         return result;
      }
};

BOTAN_REGISTER_TEST("pubkey", "ecdsa_key_recovery", ECDSA_Key_Recovery_Tests);

   #endif

class ECDSA_Invalid_Key_Tests final : public Text_Based_Test {
   public:
      ECDSA_Invalid_Key_Tests() : Text_Based_Test("pubkey/ecdsa_invalid.vec", "Group,InvalidKeyX,InvalidKeyY") {}

      bool clear_between_callbacks() const override { return false; }

      bool skip_this_test(const std::string& /*header*/, const VarMap& vars) override {
         return !Botan::EC_Group::supports_named_group(vars.get_req_str("Group"));
      }

      Test::Result run_one_test(const std::string& /*header*/, const VarMap& vars) override {
         Test::Result result("ECDSA invalid keys");

         const std::string group_id = vars.get_req_str("Group");
         const auto group = Botan::EC_Group::from_name(group_id);
         const Botan::BigInt x = vars.get_req_bn("InvalidKeyX");
         const Botan::BigInt y = vars.get_req_bn("InvalidKeyY");

         if(auto pt = Botan::EC_AffinePoint::from_bigint_xy(group, x, y)) {
            result.test_failure("Invalid public key was deserialized");
         } else {
            result.test_success("Invalid public key was rejected");
         }

         return result;
      }
};

class ECDSA_AllGroups_Test : public Test {
   public:
      std::vector<Test::Result> run() override {
         std::vector<Test::Result> results;

         const std::vector<std::string> hash_fn = {
            "SHA-256", "SHA-384", "SHA-512", "SHAKE-128(208)", "SHAKE-128(520)", "SHAKE-128(1032)"};

         for(const std::string& group_name : Botan::EC_Group::known_named_groups()) {
            Test::Result result("ECDSA " + group_name);

            result.start_timer();

            const auto group = Botan::EC_Group::from_name(group_name);

            const Botan::ECDSA_PrivateKey priv(rng(), group);
            const auto pub = priv.public_key();

            for(const auto& hash : hash_fn) {
               if(!Botan::HashFunction::create(hash)) {
                  continue;
               }

               try {
                  Botan::PK_Signer signer(priv, rng(), hash);
                  Botan::PK_Verifier verifier(*pub, hash);

                  for(size_t i = 0; i != 16; ++i) {
                     auto message = Botan::unlock(rng().random_vec(rng().next_byte()));
                     auto sig = signer.sign_message(message, rng());
                     result.test_eq("Expected signature size", sig.size(), 2 * group.get_order_bytes());

                     result.confirm("Signature accepted", verifier.verify_message(message, sig));

                     const auto corrupted_message = mutate_vec(message, rng(), true);
                     result.confirm("Modified message rejected", !verifier.verify_message(corrupted_message, sig));

                     const auto corrupted_sig = mutate_vec(sig, rng(), true);
                     result.confirm("Modified signature rejected", !verifier.verify_message(message, corrupted_sig));
                  }
               } catch(std::exception& e) {
                  result.test_failure("Exception", e.what());
               }
            }

            result.end_timer();
            results.push_back(result);
         }

         return results;
      }
};

class ECDSA_ExplicitCurveKey_Test : public Text_Based_Test {
   public:
      ECDSA_ExplicitCurveKey_Test() : Text_Based_Test("pubkey/ecdsa_explicit.vec", "Key") {}

      bool clear_between_callbacks() const override { return false; }

      bool skip_this_test(const std::string& group, const VarMap& /*vars*/) override {
         return !Botan::EC_Group::supports_named_group(group);
      }

      Test::Result run_one_test(const std::string& group_name, const VarMap& vars) override {
         Test::Result result("ECDSA explicit key " + group_name);

         const auto key_bytes = vars.get_req_bin("Key");

         try {
            const auto expected_oid = Botan::OID::from_name(group_name).value();

            auto key = Botan::PKCS8::load_key(key_bytes);
            const auto* ecdsa = dynamic_cast<const Botan::ECDSA_PrivateKey*>(key.get());
            if(ecdsa != nullptr) {
               result.test_success("Returned key was ECDSA");

               const auto& group = ecdsa->domain();
               result.test_eq("Key is marked as explicit encoding", group.used_explicit_encoding(), true);
               result.confirm("Group has expected OID", group.get_curve_oid() == expected_oid);
            } else {
               result.test_failure("Returned key was some other type");
            }
         } catch(Botan::Exception& e) {
            result.test_failure("Failed to parse key", e.what());
         }

         return result;
      }
};

BOTAN_REGISTER_TEST("pubkey", "ecdsa_verify", ECDSA_Verification_Tests);
BOTAN_REGISTER_TEST("pubkey", "ecdsa_verify_wycheproof", ECDSA_Wycheproof_Verification_Tests);
BOTAN_REGISTER_TEST("pubkey", "ecdsa_sign", ECDSA_Signature_KAT_Tests);
BOTAN_REGISTER_TEST("pubkey", "ecdsa_verify_kat", ECDSA_KAT_Verification_Tests);
BOTAN_REGISTER_TEST("pubkey", "ecdsa_sign_verify_der", ECDSA_Sign_Verify_DER_Test);
BOTAN_REGISTER_TEST("pubkey", "ecdsa_keygen", ECDSA_Keygen_Tests);
BOTAN_REGISTER_TEST("pubkey", "ecdsa_keygen_stability", ECDSA_Keygen_Stability_Tests);
BOTAN_REGISTER_TEST("pubkey", "ecdsa_invalid", ECDSA_Invalid_Key_Tests);
BOTAN_REGISTER_TEST("pubkey", "ecdsa_all_groups", ECDSA_AllGroups_Test);
BOTAN_REGISTER_TEST("pubkey", "ecdsa_explicit_curve_key", ECDSA_ExplicitCurveKey_Test);

#endif

}  // namespace

}  // namespace Botan_Tests

1	/*
2	* (C) 2014,2015 Jack Lloyd
3	* (C) 2017 René Korthaus, Rohde & Schwarz Cybersecurity
4	*
5	* Botan is released under the Simplified BSD License (see license.txt)
6	*/
7
8	#include "tests.h"
9
10	#if defined(BOTAN_HAS_ECDSA)
11	#include "test_pubkey.h"
12	#include <botan/ecdsa.h>
13	#include <botan/hash.h>
14	#include <botan/pk_algs.h>
15	#include <botan/pkcs8.h>
16	#include <botan/rng.h>
17	#endif
18
19	namespace Botan_Tests {
20
21	namespace {
22
23	#if defined(BOTAN_HAS_ECDSA)
24
25	class ECDSA_Verification_Tests final : public PK_Signature_Verification_Test {
26	public:
27	ECDSA_Verification_Tests() :	1✔
28	PK_Signature_Verification_Test("ECDSA", "pubkey/ecdsa_verify.vec", "Group,Px,Py,Msg,Signature", "Valid") {}	2✔
29
30	bool clear_between_callbacks() const override { return false; }	15✔
31
32	bool skip_this_test(const std::string& /header/, const VarMap& vars) override {	15✔
33	return !Botan::EC_Group::supports_named_group(vars.get_req_str("Group"));	15✔
34	}
35
36	std::unique_ptr<Botan::Public_Key> load_public_key(const VarMap& vars) override {	15✔
37	const std::string group_id = vars.get_req_str("Group");	15✔
38	const BigInt px = vars.get_req_bn("Px");	15✔
39	const BigInt py = vars.get_req_bn("Py");	15✔
40	const auto group = Botan::EC_Group::from_name(group_id);	15✔
41
42	const auto public_key = Botan::EC_AffinePoint::from_bigint_xy(group, px, py).value();	30✔
43
44	return std::make_unique<Botan::ECDSA_PublicKey>(group, public_key);	30✔
45	}	15✔
46
47	std::string default_padding(const VarMap& /unused/) const override { return "Raw"; }	15✔
48	};
49
50	class ECDSA_Wycheproof_Verification_Tests final : public PK_Signature_Verification_Test {
51	public:
52	ECDSA_Wycheproof_Verification_Tests() :	1✔
53	PK_Signature_Verification_Test(
54	"ECDSA", "pubkey/ecdsa_wycheproof.vec", "Group,Px,Py,Hash,Msg,Signature,Valid") {}	2✔
55
56	bool clear_between_callbacks() const override { return false; }	11,864✔
57
58	Botan::Signature_Format sig_format() const override { return Botan::Signature_Format::DerSequence; }	47,456✔
59
60	bool test_random_invalid_sigs() const override { return false; }	3,475✔
61
62	bool skip_this_test(const std::string& /header/, const VarMap& vars) override {	11,864✔
63	return !Botan::EC_Group::supports_named_group(vars.get_req_str("Group"));	11,864✔
64	}
65
66	std::unique_ptr<Botan::Public_Key> load_public_key(const VarMap& vars) override {	11,864✔
67	const std::string group_id = vars.get_req_str("Group");	11,864✔
68	const BigInt px = vars.get_req_bn("Px");	11,864✔
69	const BigInt py = vars.get_req_bn("Py");	11,864✔
70	const auto group = Botan::EC_Group::from_name(group_id);	11,864✔
71
72	const auto public_key = Botan::EC_AffinePoint::from_bigint_xy(group, px, py).value();	23,728✔
73
74	return std::make_unique<Botan::ECDSA_PublicKey>(group, public_key);	23,728✔
75	}	11,864✔
76
77	std::string default_padding(const VarMap& vars) const override { return vars.get_req_str("Hash"); }	23,728✔
78	};
79
80	class ECDSA_Signature_KAT_Tests final : public PK_Signature_Generation_Test {
81	public:
82	ECDSA_Signature_KAT_Tests() :	1✔
83	PK_Signature_Generation_Test("ECDSA",
84	#if defined(BOTAN_HAS_RFC6979_GENERATOR)
85	"pubkey/ecdsa_rfc6979.vec",
86	"Group,X,Hash,Msg,Signature") {	2✔
87	}	1✔
88	#else
89	"pubkey/ecdsa_prob.vec",
90	"Group,X,Hash,Msg,Nonce,Signature") {
91	}
92	#endif
93
94	bool clear_between_callbacks() const override { return false; }	104✔
95
96	bool skip_this_test(const std::string& /header/, const VarMap& vars) override {	104✔
97	return !Botan::EC_Group::supports_named_group(vars.get_req_str("Group"));	104✔
98	}
99
100	std::unique_ptr<Botan::Private_Key> load_private_key(const VarMap& vars) override {	104✔
101	const std::string group_id = vars.get_req_str("Group");	104✔
102	const BigInt x = vars.get_req_bn("X");	104✔
103	const auto group = Botan::EC_Group::from_name(group_id);	104✔
104
105	return std::make_unique<Botan::ECDSA_PrivateKey>(this->rng(), group, x);	208✔
106	}	104✔
107
108	std::string default_padding(const VarMap& vars) const override { return vars.get_req_str("Hash"); }	208✔
109
110	#if !defined(BOTAN_HAS_RFC6979_GENERATOR)
111	std::unique_ptr<Botan::RandomNumberGenerator> test_rng(const std::vector<uint8_t>& nonce) const override {
112	// probabilistic ecdsa signature generation extracts more random than just the nonce,
113	// but the nonce is extracted first
114	return std::make_unique<Fixed_Output_Position_RNG>(nonce, 1, this->rng());
115	}
116	#endif
117	};
118
119	class ECDSA_KAT_Verification_Tests final : public PK_Signature_Verification_Test {
120	public:
121	ECDSA_KAT_Verification_Tests() :	1✔
122	PK_Signature_Verification_Test("ECDSA",
123	#if !defined(BOTAN_HAS_RFC6979_GENERATOR)
124	"pubkey/ecdsa_rfc6979.vec",
125	"Group,X,Hash,Msg,Signature") {
126	}
127	#else
128	"pubkey/ecdsa_prob.vec",
129	"Group,X,Hash,Msg,Nonce,Signature") {	2✔
130	}	1✔
131	#endif
132
133	bool clear_between_callbacks() const override { return false; }	251✔
134
135	bool skip_this_test(const std::string& /header/, const VarMap& vars) override {	251✔
136	return !Botan::EC_Group::supports_named_group(vars.get_req_str("Group"));	251✔
137	}
138
139	std::unique_ptr<Botan::Public_Key> load_public_key(const VarMap& vars) override {	251✔
140	const std::string group_id = vars.get_req_str("Group");	251✔
141	const BigInt x = vars.get_req_bn("X");	251✔
142	const auto group = Botan::EC_Group::from_name(group_id);	251✔
143
144	const Botan::ECDSA_PrivateKey priv_key(this->rng(), group, x);	251✔
145
146	return priv_key.public_key();	251✔
147	}	251✔
148
149	std::string default_padding(const VarMap& vars) const override { return vars.get_req_str("Hash"); }	502✔
150	};
151
152	class ECDSA_Sign_Verify_DER_Test final : public PK_Sign_Verify_DER_Test {	×
153	public:
154	ECDSA_Sign_Verify_DER_Test() : PK_Sign_Verify_DER_Test("ECDSA", "SHA-512") {}	2✔
155
156	std::unique_ptr<Botan::Private_Key> key() override {	1✔
157	return Botan::create_private_key("ECDSA", this->rng(), "secp256r1");	1✔
158	}
159	};
160
161	class ECDSA_Keygen_Tests final : public PK_Key_Generation_Test {	1✔
162	public:
163	std::vector<std::string> keygen_params() const override {	1✔
164	const auto& grp = Botan::EC_Group::known_named_groups();	1✔
165	return std::vector<std::string>(grp.begin(), grp.end());	1✔
166	}
167
168	std::string algo_name() const override { return "ECDSA"; }	28✔
169
170	std::unique_ptr<Botan::Public_Key> public_key_from_raw(std::string_view keygen_params,	28✔
171	std::string_view /* provider */,
172	std::span<const uint8_t> raw_pk) const override {
173	const auto group = Botan::EC_Group(keygen_params);	28✔
174	const auto public_key = Botan::EC_AffinePoint(group, raw_pk);	28✔
175	return std::make_unique<Botan::ECDSA_PublicKey>(group, public_key);	84✔
176	}	28✔
177	};
178
179	class ECDSA_Keygen_Stability_Tests final : public PK_Key_Generation_Stability_Test {
180	public:
181	ECDSA_Keygen_Stability_Tests() : PK_Key_Generation_Stability_Test("ECDSA", "pubkey/ecdsa_keygen.vec") {}	2✔
182	};
183
184	#if defined(BOTAN_HAS_EMSA_RAW)
185
186	class ECDSA_Key_Recovery_Tests final : public Text_Based_Test {	×
187	public:
188	ECDSA_Key_Recovery_Tests() : Text_Based_Test("pubkey/ecdsa_key_recovery.vec", "Group,Msg,R,S,V,Pubkey") {}	2✔
189
190	bool skip_this_test(const std::string& /header/, const VarMap& vars) override {	2✔
191	return !Botan::EC_Group::supports_named_group(vars.get_req_str("Group"));	2✔
192	}
193
194	Test::Result run_one_test(const std::string& /header/, const VarMap& vars) override {	2✔
195	Test::Result result("ECDSA key recovery");	2✔
196
197	const std::string group_id = vars.get_req_str("Group");	2✔
198	const auto group = Botan::EC_Group::from_name(group_id);	2✔
199
200	const BigInt R = vars.get_req_bn("R");	2✔
201	const BigInt S = vars.get_req_bn("S");	2✔
202	const uint8_t V = vars.get_req_u8("V");	2✔
203	const std::vector<uint8_t> msg = vars.get_req_bin("Msg");	2✔
204	const auto expected_pubkey = vars.get_req_bin("Pubkey");	2✔
205
206	try {	2✔
207	const Botan::ECDSA_PublicKey pubkey(group, msg, R, S, V);	2✔
208	result.test_eq("Pubkey X coordinate", pubkey.public_key_bits(), expected_pubkey);	4✔
209
210	const uint8_t computed_V = pubkey.recovery_param(msg, R, S);	2✔
211	result.test_eq("Recovery param is correct", static_cast<size_t>(computed_V), static_cast<size_t>(V));	2✔
212
213	Botan::PK_Verifier verifier(pubkey, "Raw");	2✔
214
215	auto sig = Botan::BigInt::encode_fixed_length_int_pair(R, S, group.get_order_bytes());	2✔
216
217	result.confirm("Signature verifies", verifier.verify_message(msg, sig));	4✔
218	} catch(Botan::Exception& e) {	2✔
219	result.test_failure("Failed to recover ECDSA public key", e.what());	×
220	}	×
221
222	return result;	2✔
223	}	4✔
224	};
225
226	BOTAN_REGISTER_TEST("pubkey", "ecdsa_key_recovery", ECDSA_Key_Recovery_Tests);
227
228	#endif
229
230	class ECDSA_Invalid_Key_Tests final : public Text_Based_Test {	×
231	public:
232	ECDSA_Invalid_Key_Tests() : Text_Based_Test("pubkey/ecdsa_invalid.vec", "Group,InvalidKeyX,InvalidKeyY") {}	2✔
233
234	bool clear_between_callbacks() const override { return false; }	78✔
235
236	bool skip_this_test(const std::string& /header/, const VarMap& vars) override {	78✔
237	return !Botan::EC_Group::supports_named_group(vars.get_req_str("Group"));	78✔
238	}
239
240	Test::Result run_one_test(const std::string& /header/, const VarMap& vars) override {	78✔
241	Test::Result result("ECDSA invalid keys");	78✔
242
243	const std::string group_id = vars.get_req_str("Group");	78✔
244	const auto group = Botan::EC_Group::from_name(group_id);	78✔
245	const Botan::BigInt x = vars.get_req_bn("InvalidKeyX");	78✔
246	const Botan::BigInt y = vars.get_req_bn("InvalidKeyY");	78✔
247
248	if(auto pt = Botan::EC_AffinePoint::from_bigint_xy(group, x, y)) {	78✔
249	result.test_failure("Invalid public key was deserialized");	×
250	} else {
251	result.test_success("Invalid public key was rejected");	156✔
252	}	×
253
254	return result;	156✔
255	}	78✔
256	};
257
258	class ECDSA_AllGroups_Test : public Test {	1✔
259	public:
260	std::vector<Test::Result> run() override {	1✔
261	std::vector<Test::Result> results;	1✔
262
263	const std::vector<std::string> hash_fn = {	1✔
264	"SHA-256", "SHA-384", "SHA-512", "SHAKE-128(208)", "SHAKE-128(520)", "SHAKE-128(1032)"};	1✔
265
266	for(const std::string& group_name : Botan::EC_Group::known_named_groups()) {	29✔
267	Test::Result result("ECDSA " + group_name);	28✔
268
269	result.start_timer();	28✔
270
271	const auto group = Botan::EC_Group::from_name(group_name);	28✔
272
273	const Botan::ECDSA_PrivateKey priv(rng(), group);	28✔
274	const auto pub = priv.public_key();	28✔
275
276	for(const auto& hash : hash_fn) {	196✔
277	if(!Botan::HashFunction::create(hash)) {	336✔
278	continue;	×
279	}
280
281	try {	168✔
282	Botan::PK_Signer signer(priv, rng(), hash);	168✔
283	Botan::PK_Verifier verifier(*pub, hash);	168✔
284
285	for(size_t i = 0; i != 16; ++i) {	2,856✔
286	auto message = Botan::unlock(rng().random_vec(rng().next_byte()));	5,376✔
287	auto sig = signer.sign_message(message, rng());	2,688✔
288	result.test_eq("Expected signature size", sig.size(), 2 * group.get_order_bytes());	2,688✔
289
290	result.confirm("Signature accepted", verifier.verify_message(message, sig));	5,376✔
291
292	const auto corrupted_message = mutate_vec(message, rng(), true);	2,688✔
293	result.confirm("Modified message rejected", !verifier.verify_message(corrupted_message, sig));	5,376✔
294
295	const auto corrupted_sig = mutate_vec(sig, rng(), true);	2,688✔
296	result.confirm("Modified signature rejected", !verifier.verify_message(message, corrupted_sig));	5,376✔
297	}	10,743✔
298	} catch(std::exception& e) {	168✔
299	result.test_failure("Exception", e.what());	×
300	}	×
301	}
302
303	result.end_timer();	28✔
304	results.push_back(result);	28✔
305	}	28✔
306
307	return results;	1✔
308	}	1✔
309	};
310
311	class ECDSA_ExplicitCurveKey_Test : public Text_Based_Test {	×
312	public:
313	ECDSA_ExplicitCurveKey_Test() : Text_Based_Test("pubkey/ecdsa_explicit.vec", "Key") {}	2✔
314
315	bool clear_between_callbacks() const override { return false; }	13✔
316
317	bool skip_this_test(const std::string& group, const VarMap& /vars/) override {	13✔
318	return !Botan::EC_Group::supports_named_group(group);	13✔
319	}
320
321	Test::Result run_one_test(const std::string& group_name, const VarMap& vars) override {	13✔
322	Test::Result result("ECDSA explicit key " + group_name);	13✔
323
324	const auto key_bytes = vars.get_req_bin("Key");	13✔
325
326	try {	13✔
327	const auto expected_oid = Botan::OID::from_name(group_name).value();	26✔
328
329	auto key = Botan::PKCS8::load_key(key_bytes);	13✔
330	const auto* ecdsa = dynamic_cast<const Botan::ECDSA_PrivateKey*>(key.get());	13✔
331	if(ecdsa != nullptr) {	13✔
332	result.test_success("Returned key was ECDSA");	13✔
333
334	const auto& group = ecdsa->domain();	13✔
335	result.test_eq("Key is marked as explicit encoding", group.used_explicit_encoding(), true);	13✔
336	result.confirm("Group has expected OID", group.get_curve_oid() == expected_oid);	26✔
337	} else {
338	result.test_failure("Returned key was some other type");	×
339	}
340	} catch(Botan::Exception& e) {	13✔
341	result.test_failure("Failed to parse key", e.what());	×
342	}	×
343
344	return result;	13✔
345	}	13✔
346	};
347
348	BOTAN_REGISTER_TEST("pubkey", "ecdsa_verify", ECDSA_Verification_Tests);
349	BOTAN_REGISTER_TEST("pubkey", "ecdsa_verify_wycheproof", ECDSA_Wycheproof_Verification_Tests);
350	BOTAN_REGISTER_TEST("pubkey", "ecdsa_sign", ECDSA_Signature_KAT_Tests);
351	BOTAN_REGISTER_TEST("pubkey", "ecdsa_verify_kat", ECDSA_KAT_Verification_Tests);
352	BOTAN_REGISTER_TEST("pubkey", "ecdsa_sign_verify_der", ECDSA_Sign_Verify_DER_Test);
353	BOTAN_REGISTER_TEST("pubkey", "ecdsa_keygen", ECDSA_Keygen_Tests);
354	BOTAN_REGISTER_TEST("pubkey", "ecdsa_keygen_stability", ECDSA_Keygen_Stability_Tests);
355	BOTAN_REGISTER_TEST("pubkey", "ecdsa_invalid", ECDSA_Invalid_Key_Tests);
356	BOTAN_REGISTER_TEST("pubkey", "ecdsa_all_groups", ECDSA_AllGroups_Test);
357	BOTAN_REGISTER_TEST("pubkey", "ecdsa_explicit_curve_key", ECDSA_ExplicitCurveKey_Test);
358
359	#endif
360
361	} // namespace
362
363	} // namespace Botan_Tests

randombit / botan / 20579846577

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