5123321399

Committed 30 May 2023 04:06PM UTC coverage: 92.213% (+0.004%) from 92.209%

Build # 5123321399

Build Type

Pull #3558

github

Committed by

web-flow

Commit Message

Merge dd72f7389 into 057bcbc35

Pull Request Pull Request #3558: Add braces around all if/else statements

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76.21

/src/cli/pubkey.cpp

/*
* (C) 2010,2014,2015,2019 Jack Lloyd
* (C) 2019 Matthias Gierlings
* (C) 2015 René Korthaus
*
* Botan is released under the Simplified BSD License (see license.txt)
*/

#include "cli.h"

#if defined(BOTAN_HAS_PUBLIC_KEY_CRYPTO)

   #include <botan/base64.h>
   #include <botan/hex.h>
   #include <botan/rng.h>

   #include <botan/data_src.h>
   #include <botan/hash.h>
   #include <botan/pk_algs.h>
   #include <botan/pk_keys.h>
   #include <botan/pkcs8.h>
   #include <botan/pubkey.h>
   #include <botan/x509_key.h>
   #include <botan/internal/workfactor.h>

   #include <fstream>
   #include <sstream>

   #if defined(BOTAN_HAS_DL_GROUP)
      #include <botan/dl_group.h>
   #endif

   #if defined(BOTAN_HAS_ECC_GROUP)
      #include <botan/ec_group.h>
   #endif

namespace Botan_CLI {

class PK_Keygen final : public Command {
   public:
      PK_Keygen() :
            Command(
               "keygen --algo=RSA --params= --passphrase= --cipher= --pbkdf= --pbkdf-ms=300 --pbkdf-iter= --provider= --der-out") {
      }

      std::string group() const override { return "pubkey"; }

      std::string description() const override { return "Generate a PKCS #8 private key"; }

      void go() override {
         const std::string algo = get_arg("algo");
         const std::string params = get_arg("params");
         const std::string provider = get_arg("provider");

         std::unique_ptr<Botan::Private_Key> key = Botan::create_private_key(algo, rng(), params, provider);

         if(!key) {
            throw CLI_Error_Unsupported("keygen", algo);
         }

         const std::string pass = get_passphrase_arg("Key passphrase", "passphrase");
         const bool der_out = flag_set("der-out");

         const std::chrono::milliseconds pbkdf_ms(get_arg_sz("pbkdf-ms"));

         if(der_out) {
            if(pass.empty()) {
               write_output(Botan::PKCS8::BER_encode(*key));
            } else {
               if(get_arg("pbkdf-iter").empty()) {
                  write_output(Botan::PKCS8::BER_encode_encrypted_pbkdf_msec(
                     *key, rng(), pass, pbkdf_ms, nullptr, get_arg("cipher"), get_arg("pbkdf")));
               } else {
                  write_output(Botan::PKCS8::BER_encode_encrypted_pbkdf_iter(
                     *key, rng(), pass, get_arg_sz("pbkdf-iter"), get_arg("cipher"), get_arg("pbkdf")));
               }
            }
         } else {
            if(pass.empty()) {
               output() << Botan::PKCS8::PEM_encode(*key);
            } else {
               if(get_arg("pbkdf-iter").empty()) {
                  output() << Botan::PKCS8::PEM_encode_encrypted_pbkdf_msec(
                     *key, rng(), pass, pbkdf_ms, nullptr, get_arg("cipher"), get_arg("pbkdf"));
               } else {
                  output() << Botan::PKCS8::PEM_encode_encrypted_pbkdf_iter(
                     *key, rng(), pass, get_arg_sz("pbkdf-iter"), get_arg("cipher"), get_arg("pbkdf"));
               }
            }
         }
      }
};

BOTAN_REGISTER_COMMAND("keygen", PK_Keygen);

   #if defined(BOTAN_TARGET_OS_HAS_FILESYSTEM)

namespace {

std::string choose_sig_padding(const std::string& key, const std::string& padding, const std::string& hash) {
   if(key == "RSA") {
      std::ostringstream oss;
      if(padding.empty()) {
         oss << "PSS";
      } else {
         oss << padding;
      }

      oss << "(" << hash << ")";
      return oss.str();
   } else if(padding.empty()) {
      return hash;
   } else if(hash.empty()) {
      return padding;
   } else {
      std::ostringstream oss;
      oss << padding << "(" << hash << ")";
      return oss.str();
   }
}

}  // namespace

class PK_Fingerprint final : public Command {
   public:
      PK_Fingerprint() : Command("fingerprint --no-fsname --algo=SHA-256 *keys") {}

      std::string group() const override { return "pubkey"; }

      std::string description() const override { return "Calculate a public key fingerprint"; }

      void go() override {
         const std::string hash_algo = get_arg("algo");
         const bool no_fsname = flag_set("no-fsname");

         for(const std::string& key_file : get_arg_list("keys")) {
            std::unique_ptr<Botan::Public_Key> key(key_file == "-" ? Botan::X509::load_key(this->slurp_file("-", 4096))
                                                                   : Botan::X509::load_key(key_file));

            const std::string fprint = key->fingerprint_public(hash_algo);

            if(no_fsname || key_file == "-") {
               output() << fprint << "\n";
            } else {
               output() << key_file << ": " << fprint << "\n";
            }
         }
      }
};

BOTAN_REGISTER_COMMAND("fingerprint", PK_Fingerprint);

namespace {

std::unique_ptr<Botan::Private_Key> load_private_key(const std::string& key_filename, const std::string& passphrase) {
   std::string err_string;

   try {
      Botan::DataSource_Stream input(key_filename);
      return Botan::PKCS8::load_key(input, passphrase);
   } catch(Botan::Exception& e) { err_string = e.what(); }

   if(passphrase.empty()) {
      try {
         Botan::DataSource_Stream input(key_filename);
         return Botan::PKCS8::load_key(input);
      } catch(Botan::Exception& e) { err_string = e.what(); }
   }

   throw CLI_Error("Loading private key failed (" + err_string + ")");
}

}  // namespace

class PK_Sign final : public Command {
   public:
      PK_Sign() : Command("sign --der-format --passphrase= --hash=SHA-256 --padding= --provider= key file") {}

      std::string group() const override { return "pubkey"; }

      std::string description() const override { return "Sign arbitrary data"; }

      void go() override {
         const std::string key_file = get_arg("key");
         const std::string passphrase = get_passphrase_arg("Passphrase for " + key_file, "passphrase");

         auto key = load_private_key(key_file, passphrase);

         const std::string hash_fn = get_arg("hash");

         if(!hash_fn.empty() && !Botan::HashFunction::create(hash_fn)) {
            throw CLI_Error_Unsupported("hashing", hash_fn);
         }

         const std::string sig_padding = choose_sig_padding(key->algo_name(), get_arg("padding"), hash_fn);

         auto format = Botan::Signature_Format::Standard;

         if(flag_set("der-format")) {
            if(key->message_parts() == 1) {
               throw CLI_Usage_Error("Key type " + key->algo_name() +
                                     " does not support DER formatting for signatures");
            }
            format = Botan::Signature_Format::DerSequence;
         }

         const std::string provider = get_arg("provider");

         Botan::PK_Signer signer(*key, rng(), sig_padding, format, provider);

         auto onData = [&signer](const uint8_t b[], size_t l) { signer.update(b, l); };
         Command::read_file(get_arg("file"), onData);

         std::vector<uint8_t> sig{signer.signature(rng())};

         if(key->stateful_operation()) {
            std::ofstream updated_key(key_file);
            if(passphrase.empty()) {
               updated_key << Botan::PKCS8::PEM_encode(*key);
            } else {
               updated_key << Botan::PKCS8::PEM_encode(*key, rng(), passphrase);
            }
         }

         output() << Botan::base64_encode(sig) << "\n";
      }
};

BOTAN_REGISTER_COMMAND("sign", PK_Sign);

class PK_Verify final : public Command {
   public:
      PK_Verify() : Command("verify --der-format --hash=SHA-256 --padding= pubkey file signature") {}

      std::string group() const override { return "pubkey"; }

      std::string description() const override {
         return "Verify the authenticity of the given file with the provided signature";
      }

      void go() override {
         auto key = Botan::X509::load_key(get_arg("pubkey"));
         if(!key) {
            throw CLI_Error("Unable to load public key");
         }

         const std::string hash_fn = get_arg("hash");

         if(!hash_fn.empty() && !Botan::HashFunction::create(hash_fn)) {
            throw CLI_Error_Unsupported("hashing", hash_fn);
         }

         const std::string sig_padding = choose_sig_padding(key->algo_name(), get_arg("padding"), hash_fn);

         auto format = Botan::Signature_Format::Standard;
         if(flag_set("der-format")) {
            if(key->message_parts() == 1) {
               throw CLI_Usage_Error("Key type " + key->algo_name() +
                                     " does not support DER formatting for signatures");
            }
            format = Botan::Signature_Format::DerSequence;
         }

         Botan::PK_Verifier verifier(*key, sig_padding, format);
         auto onData = [&verifier](const uint8_t b[], size_t l) { verifier.update(b, l); };
         Command::read_file(get_arg("file"), onData);

         const Botan::secure_vector<uint8_t> signature =
            Botan::base64_decode(this->slurp_file_as_str(get_arg("signature")));

         const bool valid = verifier.check_signature(signature);

         output() << "Signature is " << (valid ? "valid" : "invalid") << "\n";
      }
};

BOTAN_REGISTER_COMMAND("verify", PK_Verify);

class PKCS8_Tool final : public Command {
   public:
      PKCS8_Tool() :
            Command(
               "pkcs8 --pass-in= --pub-out --der-out --pass-out= --cipher= --pbkdf= --pbkdf-ms=300 --pbkdf-iter= key") {
      }

      std::string group() const override { return "pubkey"; }

      std::string description() const override { return "Open a PKCS #8 formatted key"; }

      void go() override {
         const std::string key_file = get_arg("key");
         const std::string pass_in = get_passphrase_arg("Password for " + key_file, "pass-in");

         Botan::DataSource_Memory key_src(slurp_file(key_file));
         std::unique_ptr<Botan::Private_Key> key;

         if(pass_in.empty()) {
            key = Botan::PKCS8::load_key(key_src);
         } else {
            key = Botan::PKCS8::load_key(key_src, pass_in);
         }

         const std::chrono::milliseconds pbkdf_ms(get_arg_sz("pbkdf-ms"));
         const bool der_out = flag_set("der-out");

         if(flag_set("pub-out")) {
            if(der_out) {
               write_output(Botan::X509::BER_encode(*key));
            } else {
               output() << Botan::X509::PEM_encode(*key);
            }
         } else {
            const std::string pass_out = get_passphrase_arg("Passphrase to encrypt key", "pass-out");

            if(der_out) {
               if(pass_out.empty()) {
                  write_output(Botan::PKCS8::BER_encode(*key));
               } else {
                  if(get_arg("pbkdf-iter").empty()) {
                     write_output(Botan::PKCS8::BER_encode_encrypted_pbkdf_msec(
                        *key, rng(), pass_out, pbkdf_ms, nullptr, get_arg("cipher"), get_arg("pbkdf")));
                  } else {
                     write_output(Botan::PKCS8::BER_encode_encrypted_pbkdf_iter(
                        *key, rng(), pass_out, get_arg_sz("pbkdf-iter"), get_arg("cipher"), get_arg("pbkdf")));
                  }
               }
            } else {
               if(pass_out.empty()) {
                  output() << Botan::PKCS8::PEM_encode(*key);
               } else {
                  if(get_arg("pbkdf-iter").empty()) {
                     output() << Botan::PKCS8::PEM_encode_encrypted_pbkdf_msec(
                        *key, rng(), pass_out, pbkdf_ms, nullptr, get_arg("cipher"), get_arg("pbkdf"));
                  } else {
                     output() << Botan::PKCS8::PEM_encode_encrypted_pbkdf_iter(
                        *key, rng(), pass_out, get_arg_sz("pbkdf-iter"), get_arg("cipher"), get_arg("pbkdf"));
                  }
               }
            }
         }
      }
};

BOTAN_REGISTER_COMMAND("pkcs8", PKCS8_Tool);

   #endif

   #if defined(BOTAN_HAS_ECC_GROUP)

class EC_Group_Info final : public Command {
   public:
      EC_Group_Info() : Command("ec_group_info --pem name") {}

      std::string group() const override { return "pubkey"; }

      std::string description() const override {
         return "Print raw elliptic curve domain parameters of the standardized curve name";
      }

      void go() override {
         Botan::EC_Group ec_group(get_arg("name"));

         if(flag_set("pem")) {
            output() << ec_group.PEM_encode();
         } else {
            output() << "P = " << std::hex << ec_group.get_p() << "\n"
                     << "A = " << std::hex << ec_group.get_a() << "\n"
                     << "B = " << std::hex << ec_group.get_b() << "\n"
                     << "N = " << std::hex << ec_group.get_order() << "\n"
                     << "G = " << ec_group.get_g_x() << "," << ec_group.get_g_y() << "\n";
         }
      }
};

BOTAN_REGISTER_COMMAND("ec_group_info", EC_Group_Info);

   #endif

   #if defined(BOTAN_HAS_DL_GROUP)

class DL_Group_Info final : public Command {
   public:
      DL_Group_Info() : Command("dl_group_info --pem name") {}

      std::string group() const override { return "pubkey"; }

      std::string description() const override {
         return "Print raw Diffie-Hellman parameters (p,g) of the standardized DH group name";
      }

      void go() override {
         Botan::DL_Group dl_group(get_arg("name"));

         if(flag_set("pem")) {
            output() << dl_group.PEM_encode(Botan::DL_Group_Format::ANSI_X9_42_DH_PARAMETERS);
         } else {
            output() << "P = " << std::hex << dl_group.get_p() << "\n"
                     << "G = " << dl_group.get_g() << "\n";
         }
      }
};

BOTAN_REGISTER_COMMAND("dl_group_info", DL_Group_Info);

class PK_Workfactor final : public Command {
   public:
      PK_Workfactor() : Command("pk_workfactor --type=rsa bits") {}

      std::string group() const override { return "pubkey"; }

      std::string description() const override { return "Provide estimate of strength of public key based on size"; }

      void go() override {
         const size_t bits = get_arg_sz("bits");
         const std::string type = get_arg("type");

         if(type == "rsa") {
            output() << Botan::if_work_factor(bits) << "\n";
         } else if(type == "dl") {
            output() << Botan::dl_work_factor(bits) << "\n";
         } else if(type == "dl_exp") {
            output() << Botan::dl_exponent_size(bits) << "\n";
         } else {
            throw CLI_Usage_Error("Unknown type for pk_workfactor (rsa, dl, dl_exp)");
         }
      }
};

BOTAN_REGISTER_COMMAND("pk_workfactor", PK_Workfactor);

class Gen_DL_Group final : public Command {
   public:
      Gen_DL_Group() : Command("gen_dl_group --pbits=2048 --qbits=0 --seed= --type=subgroup") {}

      std::string group() const override { return "pubkey"; }

      std::string description() const override { return "Generate ANSI X9.42 encoded Diffie-Hellman group parameters"; }

      void go() override {
         const size_t pbits = get_arg_sz("pbits");
         const size_t qbits = get_arg_sz("qbits");

         const std::string type = get_arg("type");
         const std::string seed_str = get_arg("seed");

         if(type == "strong") {
            if(!seed_str.empty()) {
               throw CLI_Usage_Error("Seed only supported for DSA param gen");
            }
            Botan::DL_Group grp(rng(), Botan::DL_Group::Strong, pbits);
            output() << grp.PEM_encode(Botan::DL_Group_Format::ANSI_X9_42);
         } else if(type == "subgroup") {
            if(!seed_str.empty()) {
               throw CLI_Usage_Error("Seed only supported for DSA param gen");
            }
            Botan::DL_Group grp(rng(), Botan::DL_Group::Prime_Subgroup, pbits, qbits);
            output() << grp.PEM_encode(Botan::DL_Group_Format::ANSI_X9_42);
         } else if(type == "dsa") {
            size_t dsa_qbits = qbits;
            if(dsa_qbits == 0) {
               if(pbits == 1024) {
                  dsa_qbits = 160;
               } else if(pbits == 2048 || pbits == 3072) {
                  dsa_qbits = 256;
               } else {
                  throw CLI_Usage_Error("Invalid DSA p/q sizes");
               }
            }

            if(seed_str.empty()) {
               Botan::DL_Group grp(rng(), Botan::DL_Group::DSA_Kosherizer, pbits, dsa_qbits);
               output() << grp.PEM_encode(Botan::DL_Group_Format::ANSI_X9_57);
            } else {
               const std::vector<uint8_t> seed = Botan::hex_decode(seed_str);
               Botan::DL_Group grp(rng(), seed, pbits, dsa_qbits);
               output() << grp.PEM_encode(Botan::DL_Group_Format::ANSI_X9_57);
            }

         } else {
            throw CLI_Usage_Error("Invalid DL type '" + type + "'");
         }
      }
};

BOTAN_REGISTER_COMMAND("gen_dl_group", Gen_DL_Group);

   #endif

}  // namespace Botan_CLI

#endif

1	/*
2	* (C) 2010,2014,2015,2019 Jack Lloyd
3	* (C) 2019 Matthias Gierlings
4	* (C) 2015 René Korthaus
5	*
6	* Botan is released under the Simplified BSD License (see license.txt)
7	*/
8
9	#include "cli.h"
10
11	#if defined(BOTAN_HAS_PUBLIC_KEY_CRYPTO)
12
13	#include <botan/base64.h>
14	#include <botan/hex.h>
15	#include <botan/rng.h>
16
17	#include <botan/data_src.h>
18	#include <botan/hash.h>
19	#include <botan/pk_algs.h>
20	#include <botan/pk_keys.h>
21	#include <botan/pkcs8.h>
22	#include <botan/pubkey.h>
23	#include <botan/x509_key.h>
24	#include <botan/internal/workfactor.h>
25
26	#include <fstream>
27	#include <sstream>
28
29	#if defined(BOTAN_HAS_DL_GROUP)
30	#include <botan/dl_group.h>
31	#endif
32
33	#if defined(BOTAN_HAS_ECC_GROUP)
34	#include <botan/ec_group.h>
35	#endif
36
37	namespace Botan_CLI {
38
39	class PK_Keygen final : public Command {
40	public:
41	PK_Keygen() :	20✔
42	Command(
43	"keygen --algo=RSA --params= --passphrase= --cipher= --pbkdf= --pbkdf-ms=300 --pbkdf-iter= --provider= --der-out") {	20✔
44	}	20✔
45
46	std::string group() const override { return "pubkey"; }	1✔
47
48	std::string description() const override { return "Generate a PKCS #8 private key"; }	1✔
49
50	void go() override {	19✔
51	const std::string algo = get_arg("algo");	19✔
52	const std::string params = get_arg("params");	19✔
53	const std::string provider = get_arg("provider");	19✔
54
55	std::unique_ptr<Botan::Private_Key> key = Botan::create_private_key(algo, rng(), params, provider);	19✔
56
57	if(!key) {	19✔
58	throw CLI_Error_Unsupported("keygen", algo);	×
59	}
60
61	const std::string pass = get_passphrase_arg("Key passphrase", "passphrase");	38✔
62	const bool der_out = flag_set("der-out");	19✔
63
64	const std::chrono::milliseconds pbkdf_ms(get_arg_sz("pbkdf-ms"));	19✔
65
66	if(der_out) {	19✔
67	if(pass.empty()) {	×
68	write_output(Botan::PKCS8::BER_encode(*key));	×
69	} else {
70	if(get_arg("pbkdf-iter").empty()) {	×
71	write_output(Botan::PKCS8::BER_encode_encrypted_pbkdf_msec(	×
72	*key, rng(), pass, pbkdf_ms, nullptr, get_arg("cipher"), get_arg("pbkdf")));	×
73	} else {
74	write_output(Botan::PKCS8::BER_encode_encrypted_pbkdf_iter(	×
75	*key, rng(), pass, get_arg_sz("pbkdf-iter"), get_arg("cipher"), get_arg("pbkdf")));	×
76	}
77	}
78	} else {
79	if(pass.empty()) {	19✔
80	output() << Botan::PKCS8::PEM_encode(*key);	57✔
81	} else {
82	if(get_arg("pbkdf-iter").empty()) {	×
83	output() << Botan::PKCS8::PEM_encode_encrypted_pbkdf_msec(	×
84	*key, rng(), pass, pbkdf_ms, nullptr, get_arg("cipher"), get_arg("pbkdf"));	×
85	} else {
86	output() << Botan::PKCS8::PEM_encode_encrypted_pbkdf_iter(	×
87	*key, rng(), pass, get_arg_sz("pbkdf-iter"), get_arg("cipher"), get_arg("pbkdf"));	×
88	}
89	}
90	}
91	}	42✔
92	};
93
94	BOTAN_REGISTER_COMMAND("keygen", PK_Keygen);	20✔
95
96	#if defined(BOTAN_TARGET_OS_HAS_FILESYSTEM)
97
98	namespace {
99
100	std::string choose_sig_padding(const std::string& key, const std::string& padding, const std::string& hash) {	7✔
101	if(key == "RSA") {	7✔
102	std::ostringstream oss;	×
103	if(padding.empty()) {	×
104	oss << "PSS";	×
105	} else {
106	oss << padding;	×
107	}
108
109	oss << "(" << hash << ")";	×
110	return oss.str();	×
111	} else if(padding.empty()) {	7✔
112	return hash;	7✔
113	} else if(hash.empty()) {	×
114	return padding;	7✔
115	} else {
116	std::ostringstream oss;	×
117	oss << padding << "(" << hash << ")";	×
118	return oss.str();	×
119	}	×
120	}
121
122	} // namespace
123
124	class PK_Fingerprint final : public Command {
125	public:
126	PK_Fingerprint() : Command("fingerprint --no-fsname --algo=SHA-256 *keys") {}	16✔
127
128	std::string group() const override { return "pubkey"; }	1✔
129
130	std::string description() const override { return "Calculate a public key fingerprint"; }	1✔
131
132	void go() override {	7✔
133	const std::string hash_algo = get_arg("algo");	7✔
134	const bool no_fsname = flag_set("no-fsname");	7✔
135
136	for(const std::string& key_file : get_arg_list("keys")) {	15✔
137	std::unique_ptr<Botan::Public_Key> key(key_file == "-" ? Botan::X509::load_key(this->slurp_file("-", 4096))	17✔
138	: Botan::X509::load_key(key_file));	9✔
139
140	const std::string fprint = key->fingerprint_public(hash_algo);	8✔
141
142	if(no_fsname \|\| key_file == "-") {	8✔
143	output() << fprint << "\n";	7✔
144	} else {
145	output() << key_file << ": " << fprint << "\n";	1✔
146	}
147	}	23✔
148	}	7✔
149	};
150
151	BOTAN_REGISTER_COMMAND("fingerprint", PK_Fingerprint);	8✔
152
153	namespace {
154
155	std::unique_ptr<Botan::Private_Key> load_private_key(const std::string& key_filename, const std::string& passphrase) {	3✔
156	std::string err_string;	3✔
157
158	try {	3✔
159	Botan::DataSource_Stream input(key_filename);	3✔
160	return Botan::PKCS8::load_key(input, passphrase);	3✔
161	} catch(Botan::Exception& e) { err_string = e.what(); }	3✔
162
163	if(passphrase.empty()) {	×
164	try {	×
165	Botan::DataSource_Stream input(key_filename);	×
166	return Botan::PKCS8::load_key(input);	×
167	} catch(Botan::Exception& e) { err_string = e.what(); }	×
168	}
169
170	throw CLI_Error("Loading private key failed (" + err_string + ")");	×
171	}	3✔
172
173	} // namespace
174
175	class PK_Sign final : public Command {
176	public:
177	PK_Sign() : Command("sign --der-format --passphrase= --hash=SHA-256 --padding= --provider= key file") {}	8✔
178
179	std::string group() const override { return "pubkey"; }	1✔
180
181	std::string description() const override { return "Sign arbitrary data"; }	1✔
182
183	void go() override {	3✔
184	const std::string key_file = get_arg("key");	3✔
185	const std::string passphrase = get_passphrase_arg("Passphrase for " + key_file, "passphrase");	6✔
186
187	auto key = load_private_key(key_file, passphrase);	3✔
188
189	const std::string hash_fn = get_arg("hash");	3✔
190
191	if(!hash_fn.empty() && !Botan::HashFunction::create(hash_fn)) {	6✔
192	throw CLI_Error_Unsupported("hashing", hash_fn);	×
193	}
194
195	const std::string sig_padding = choose_sig_padding(key->algo_name(), get_arg("padding"), hash_fn);	6✔
196
197	auto format = Botan::Signature_Format::Standard;	3✔
198
199	if(flag_set("der-format")) {	3✔
200	if(key->message_parts() == 1) {	×
201	throw CLI_Usage_Error("Key type " + key->algo_name() +	×
202	" does not support DER formatting for signatures");	×
203	}
204	format = Botan::Signature_Format::DerSequence;
205	}
206
207	const std::string provider = get_arg("provider");	3✔
208
209	Botan::PK_Signer signer(*key, rng(), sig_padding, format, provider);	3✔
210
211	auto onData = [&signer](const uint8_t b[], size_t l) { signer.update(b, l); };	3✔
212	Command::read_file(get_arg("file"), onData);	6✔
213
214	std::vector<uint8_t> sig{signer.signature(rng())};	3✔
215
216	if(key->stateful_operation()) {	3✔
217	std::ofstream updated_key(key_file);	2✔
218	if(passphrase.empty()) {	2✔
219	updated_key << Botan::PKCS8::PEM_encode(*key);	6✔
220	} else {
221	updated_key << Botan::PKCS8::PEM_encode(*key, rng(), passphrase);	×
222	}
223	}	2✔
224
225	output() << Botan::base64_encode(sig) << "\n";	6✔
226	}	9✔
227	};
228
229	BOTAN_REGISTER_COMMAND("sign", PK_Sign);	4✔
230
231	class PK_Verify final : public Command {
232	public:
233	PK_Verify() : Command("verify --der-format --hash=SHA-256 --padding= pubkey file signature") {}	10✔
234
235	std::string group() const override { return "pubkey"; }	1✔
236
237	std::string description() const override {	1✔
238	return "Verify the authenticity of the given file with the provided signature";	1✔
239	}
240
241	void go() override {	4✔
242	auto key = Botan::X509::load_key(get_arg("pubkey"));	8✔
243	if(!key) {	4✔
244	throw CLI_Error("Unable to load public key");	×
245	}
246
247	const std::string hash_fn = get_arg("hash");	4✔
248
249	if(!hash_fn.empty() && !Botan::HashFunction::create(hash_fn)) {	8✔
250	throw CLI_Error_Unsupported("hashing", hash_fn);	×
251	}
252
253	const std::string sig_padding = choose_sig_padding(key->algo_name(), get_arg("padding"), hash_fn);	8✔
254
255	auto format = Botan::Signature_Format::Standard;	4✔
256	if(flag_set("der-format")) {	4✔
257	if(key->message_parts() == 1) {	×
258	throw CLI_Usage_Error("Key type " + key->algo_name() +	×
259	" does not support DER formatting for signatures");	×
260	}
261	format = Botan::Signature_Format::DerSequence;
262	}
263
264	Botan::PK_Verifier verifier(*key, sig_padding, format);	4✔
265	auto onData = [&verifier](const uint8_t b[], size_t l) { verifier.update(b, l); };	4✔
266	Command::read_file(get_arg("file"), onData);	8✔
267
268	const Botan::secure_vector<uint8_t> signature =	4✔
269	Botan::base64_decode(this->slurp_file_as_str(get_arg("signature")));	10✔
270
271	const bool valid = verifier.check_signature(signature);	4✔
272
273	output() << "Signature is " << (valid ? "valid" : "invalid") << "\n";	5✔
274	}	8✔
275	};
276
277	BOTAN_REGISTER_COMMAND("verify", PK_Verify);	5✔
278
279	class PKCS8_Tool final : public Command {
280	public:
281	PKCS8_Tool() :	10✔
282	Command(
283	"pkcs8 --pass-in= --pub-out --der-out --pass-out= --cipher= --pbkdf= --pbkdf-ms=300 --pbkdf-iter= key") {	10✔
284	}	10✔
285
286	std::string group() const override { return "pubkey"; }	1✔
287
288	std::string description() const override { return "Open a PKCS #8 formatted key"; }	1✔
289
290	void go() override {	9✔
291	const std::string key_file = get_arg("key");	9✔
292	const std::string pass_in = get_passphrase_arg("Password for " + key_file, "pass-in");	18✔
293
294	Botan::DataSource_Memory key_src(slurp_file(key_file));	18✔
295	std::unique_ptr<Botan::Private_Key> key;	9✔
296
297	if(pass_in.empty()) {	9✔
298	key = Botan::PKCS8::load_key(key_src);	7✔
299	} else {
300	key = Botan::PKCS8::load_key(key_src, pass_in);	2✔
301	}
302
303	const std::chrono::milliseconds pbkdf_ms(get_arg_sz("pbkdf-ms"));	9✔
304	const bool der_out = flag_set("der-out");	9✔
305
306	if(flag_set("pub-out")) {	9✔
307	if(der_out) {	5✔
308	write_output(Botan::X509::BER_encode(*key));	2✔
309	} else {
310	output() << Botan::X509::PEM_encode(*key);	12✔
311	}
312	} else {
313	const std::string pass_out = get_passphrase_arg("Passphrase to encrypt key", "pass-out");	8✔
314
315	if(der_out) {	4✔
316	if(pass_out.empty()) {	1✔
317	write_output(Botan::PKCS8::BER_encode(*key));	×
318	} else {
319	if(get_arg("pbkdf-iter").empty()) {	1✔
320	write_output(Botan::PKCS8::BER_encode_encrypted_pbkdf_msec(	2✔
321	*key, rng(), pass_out, pbkdf_ms, nullptr, get_arg("cipher"), get_arg("pbkdf")));	3✔
322	} else {
323	write_output(Botan::PKCS8::BER_encode_encrypted_pbkdf_iter(	×
324	*key, rng(), pass_out, get_arg_sz("pbkdf-iter"), get_arg("cipher"), get_arg("pbkdf")));	×
325	}
326	}
327	} else {
328	if(pass_out.empty()) {	3✔
329	output() << Botan::PKCS8::PEM_encode(*key);	6✔
330	} else {
331	if(get_arg("pbkdf-iter").empty()) {	1✔
332	output() << Botan::PKCS8::PEM_encode_encrypted_pbkdf_msec(	3✔
333	*key, rng(), pass_out, pbkdf_ms, nullptr, get_arg("cipher"), get_arg("pbkdf"));	4✔
334	} else {
335	output() << Botan::PKCS8::PEM_encode_encrypted_pbkdf_iter(	×
336	*key, rng(), pass_out, get_arg_sz("pbkdf-iter"), get_arg("cipher"), get_arg("pbkdf"));	×
337	}
338	}
339	}
340	}	4✔
341	}	27✔
342	};
343
344	BOTAN_REGISTER_COMMAND("pkcs8", PKCS8_Tool);	10✔
345
346	#endif
347
348	#if defined(BOTAN_HAS_ECC_GROUP)
349
350	class EC_Group_Info final : public Command {
351	public:
352	EC_Group_Info() : Command("ec_group_info --pem name") {}	6✔
353
354	std::string group() const override { return "pubkey"; }	1✔
355
356	std::string description() const override {	1✔
357	return "Print raw elliptic curve domain parameters of the standardized curve name";	1✔
358	}
359
360	void go() override {	2✔
361	Botan::EC_Group ec_group(get_arg("name"));	4✔
362
363	if(flag_set("pem")) {	2✔
364	output() << ec_group.PEM_encode();	3✔
365	} else {
366	output() << "P = " << std::hex << ec_group.get_p() << "\n"	1✔
367	<< "A = " << std::hex << ec_group.get_a() << "\n"	1✔
368	<< "B = " << std::hex << ec_group.get_b() << "\n"	1✔
369	<< "N = " << std::hex << ec_group.get_order() << "\n"	1✔
370	<< "G = " << ec_group.get_g_x() << "," << ec_group.get_g_y() << "\n";	1✔
371	}
372	}	2✔
373	};
374
375	BOTAN_REGISTER_COMMAND("ec_group_info", EC_Group_Info);	3✔
376
377	#endif
378
379	#if defined(BOTAN_HAS_DL_GROUP)
380
381	class DL_Group_Info final : public Command {
382	public:
383	DL_Group_Info() : Command("dl_group_info --pem name") {}	16✔
384
385	std::string group() const override { return "pubkey"; }	1✔
386
387	std::string description() const override {	1✔
388	return "Print raw Diffie-Hellman parameters (p,g) of the standardized DH group name";	1✔
389	}
390
391	void go() override {	7✔
392	Botan::DL_Group dl_group(get_arg("name"));	14✔
393
394	if(flag_set("pem")) {	7✔
395	output() << dl_group.PEM_encode(Botan::DL_Group_Format::ANSI_X9_42_DH_PARAMETERS);	×
396	} else {
397	output() << "P = " << std::hex << dl_group.get_p() << "\n"	7✔
398	<< "G = " << dl_group.get_g() << "\n";	7✔
399	}
400	}	7✔
401	};
402
403	BOTAN_REGISTER_COMMAND("dl_group_info", DL_Group_Info);	8✔
404
405	class PK_Workfactor final : public Command {
406	public:
407	PK_Workfactor() : Command("pk_workfactor --type=rsa bits") {}	12✔
408
409	std::string group() const override { return "pubkey"; }	1✔
410
411	std::string description() const override { return "Provide estimate of strength of public key based on size"; }	1✔
412
413	void go() override {	5✔
414	const size_t bits = get_arg_sz("bits");	5✔
415	const std::string type = get_arg("type");	5✔
416
417	if(type == "rsa") {	5✔
418	output() << Botan::if_work_factor(bits) << "\n";	3✔
419	} else if(type == "dl") {	2✔
420	output() << Botan::dl_work_factor(bits) << "\n";	1✔
421	} else if(type == "dl_exp") {	1✔
422	output() << Botan::dl_exponent_size(bits) << "\n";	1✔
423	} else {
424	throw CLI_Usage_Error("Unknown type for pk_workfactor (rsa, dl, dl_exp)");	×
425	}
426	}	5✔
427	};
428
429	BOTAN_REGISTER_COMMAND("pk_workfactor", PK_Workfactor);	6✔
430
431	class Gen_DL_Group final : public Command {
432	public:
433	Gen_DL_Group() : Command("gen_dl_group --pbits=2048 --qbits=0 --seed= --type=subgroup") {}	6✔
434
435	std::string group() const override { return "pubkey"; }	1✔
436
437	std::string description() const override { return "Generate ANSI X9.42 encoded Diffie-Hellman group parameters"; }	1✔
438
439	void go() override {	2✔
440	const size_t pbits = get_arg_sz("pbits");	2✔
441	const size_t qbits = get_arg_sz("qbits");	2✔
442
443	const std::string type = get_arg("type");	2✔
444	const std::string seed_str = get_arg("seed");	2✔
445
446	if(type == "strong") {	2✔
447	if(!seed_str.empty()) {	×
448	throw CLI_Usage_Error("Seed only supported for DSA param gen");	×
449	}
450	Botan::DL_Group grp(rng(), Botan::DL_Group::Strong, pbits);	×
451	output() << grp.PEM_encode(Botan::DL_Group_Format::ANSI_X9_42);	×
452	} else if(type == "subgroup") {	2✔
453	if(!seed_str.empty()) {	1✔
454	throw CLI_Usage_Error("Seed only supported for DSA param gen");	×
455	}
456	Botan::DL_Group grp(rng(), Botan::DL_Group::Prime_Subgroup, pbits, qbits);	1✔
457	output() << grp.PEM_encode(Botan::DL_Group_Format::ANSI_X9_42);	3✔
458	} else if(type == "dsa") {	2✔
459	size_t dsa_qbits = qbits;	1✔
460	if(dsa_qbits == 0) {	1✔
461	if(pbits == 1024) {	1✔
462	dsa_qbits = 160;
463	} else if(pbits == 2048 \|\| pbits == 3072) {	×
464	dsa_qbits = 256;
465	} else {
466	throw CLI_Usage_Error("Invalid DSA p/q sizes");	×
467	}
468	}
469
470	if(seed_str.empty()) {	1✔
471	Botan::DL_Group grp(rng(), Botan::DL_Group::DSA_Kosherizer, pbits, dsa_qbits);	1✔
472	output() << grp.PEM_encode(Botan::DL_Group_Format::ANSI_X9_57);	3✔
473	} else {	1✔
474	const std::vector<uint8_t> seed = Botan::hex_decode(seed_str);	×
475	Botan::DL_Group grp(rng(), seed, pbits, dsa_qbits);	×
476	output() << grp.PEM_encode(Botan::DL_Group_Format::ANSI_X9_57);	×
477	}	×
478
479	} else {
480	throw CLI_Usage_Error("Invalid DL type '" + type + "'");	×
481	}
482	}	2✔
483	};
484
485	BOTAN_REGISTER_COMMAND("gen_dl_group", Gen_DL_Group);	3✔
486
487	#endif
488
489	} // namespace Botan_CLI
490
491	#endif

randombit / botan / 5123321399

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