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authorDeterminant <tederminant@gmail.com>2018-07-16 05:00:14 -0400
committerDeterminant <tederminant@gmail.com>2018-07-16 05:00:14 -0400
commita7cfb274d651e858ab06eff5b28a6f77e0178cf1 (patch)
tree7d76e5b5be935ef63a47dd1ed43b391f9a7e513c /src/crypto.h
parentaac40104573f8aabca86410cc08584acaaa74e26 (diff)
move header files to include/hotstuff
Diffstat (limited to 'src/crypto.h')
-rw-r--r--src/crypto.h386
1 files changed, 0 insertions, 386 deletions
diff --git a/src/crypto.h b/src/crypto.h
deleted file mode 100644
index 2fbf745..0000000
--- a/src/crypto.h
+++ /dev/null
@@ -1,386 +0,0 @@
-#ifndef _HOTSTUFF_CRYPTO_H
-#define _HOTSTUFF_CRYPTO_H
-
-#include "salticidae/crypto.h"
-#include "salticidae/ref.h"
-#include "secp256k1.h"
-#include <openssl/rand.h>
-#include "type.h"
-
-using salticidae::RcObj;
-using salticidae::BoxObj;
-
-namespace hotstuff {
-
-using salticidae::SHA256;
-
-class PubKey: public Serializable, Cloneable {
- public:
- virtual ~PubKey() = default;
- virtual PubKey *clone() override = 0;
-};
-
-using pubkey_bt = BoxObj<PubKey>;
-
-class PrivKey: public Serializable {
- public:
- virtual ~PrivKey() = default;
- virtual pubkey_bt get_pubkey() const = 0;
- virtual void from_rand() = 0;
-};
-
-using privkey_bt = BoxObj<PrivKey>;
-
-class PartCert: public Serializable, public Cloneable {
- public:
- virtual ~PartCert() = default;
- virtual bool verify(const PubKey &pubkey) = 0;
- virtual const uint256_t &get_blk_hash() const = 0;
- virtual PartCert *clone() override = 0;
-};
-
-class ReplicaConfig;
-
-class QuorumCert: public Serializable, public Cloneable {
- public:
- virtual ~QuorumCert() = default;
- virtual void add_part(ReplicaID replica, const PartCert &pc) = 0;
- virtual void compute() = 0;
- virtual bool verify(const ReplicaConfig &config) = 0;
- virtual const uint256_t &get_blk_hash() const = 0;
- virtual QuorumCert *clone() override = 0;
-};
-
-using part_cert_bt = BoxObj<PartCert>;
-using quorum_cert_bt = BoxObj<QuorumCert>;
-
-class PubKeyDummy: public PubKey {
- PubKeyDummy *clone() override { return new PubKeyDummy(*this); }
- void serialize(DataStream &) const override {}
- void unserialize(DataStream &) override {}
-};
-
-class PrivKeyDummy: public PrivKey {
- pubkey_bt get_pubkey() const override { return new PubKeyDummy(); }
- void serialize(DataStream &) const override {}
- void unserialize(DataStream &) override {}
- void from_rand() override {}
-};
-
-class PartCertDummy: public PartCert {
- uint256_t blk_hash;
- public:
- PartCertDummy() {}
- PartCertDummy(const uint256_t &blk_hash):
- blk_hash(blk_hash) {}
-
- void serialize(DataStream &s) const override {
- s << (uint32_t)0 << blk_hash;
- }
-
- void unserialize(DataStream &s) override {
- uint32_t tmp;
- s >> tmp >> blk_hash;
- }
-
- PartCert *clone() override {
- return new PartCertDummy(blk_hash);
- }
-
- bool verify(const PubKey &) override { return true; }
-
- const uint256_t &get_blk_hash() const override { return blk_hash; }
-};
-
-class QuorumCertDummy: public QuorumCert {
- uint256_t blk_hash;
- public:
- QuorumCertDummy() {}
- QuorumCertDummy(const ReplicaConfig &, const uint256_t &blk_hash):
- blk_hash(blk_hash) {}
-
- void serialize(DataStream &s) const override {
- s << (uint32_t)1 << blk_hash;
- }
-
- void unserialize(DataStream &s) override {
- uint32_t tmp;
- s >> tmp >> blk_hash;
- }
-
- QuorumCert *clone() override {
- return new QuorumCertDummy(*this);
- }
-
- void add_part(ReplicaID, const PartCert &) override {}
- void compute() override {}
- bool verify(const ReplicaConfig &) override { return true; }
-
- const uint256_t &get_blk_hash() const override { return blk_hash; }
-};
-
-
-class Secp256k1Context {
- secp256k1_context *ctx;
- friend class PubKeySecp256k1;
- friend class SigSecp256k1;
- public:
- Secp256k1Context(bool sign = false):
- ctx(secp256k1_context_create(
- sign ? SECP256K1_CONTEXT_SIGN :
- SECP256K1_CONTEXT_VERIFY)) {}
-
- Secp256k1Context(const Secp256k1Context &) = delete;
-
- Secp256k1Context(Secp256k1Context &&other): ctx(other.ctx) {
- other.ctx = nullptr;
- }
-
- ~Secp256k1Context() {
- if (ctx) secp256k1_context_destroy(ctx);
- }
-};
-
-using secp256k1_context_t = RcObj<Secp256k1Context>;
-
-extern secp256k1_context_t secp256k1_default_sign_ctx;
-extern secp256k1_context_t secp256k1_default_verify_ctx;
-
-class PrivKeySecp256k1;
-
-class PubKeySecp256k1: public PubKey {
- static const auto _olen = 33;
- friend class SigSecp256k1;
- secp256k1_pubkey data;
- secp256k1_context_t ctx;
-
- public:
- PubKeySecp256k1(const secp256k1_context_t &ctx =
- secp256k1_default_sign_ctx):
- PubKey(), ctx(ctx) {}
-
- PubKeySecp256k1(const bytearray_t &raw_bytes,
- const secp256k1_context_t &ctx =
- secp256k1_default_sign_ctx):
- PubKeySecp256k1(ctx) { from_bytes(raw_bytes); }
-
- inline PubKeySecp256k1(const PrivKeySecp256k1 &priv_key,
- const secp256k1_context_t &ctx =
- secp256k1_default_sign_ctx);
-
- void serialize(DataStream &s) const override {
- static uint8_t output[_olen];
- size_t olen = _olen;
- (void)secp256k1_ec_pubkey_serialize(
- ctx->ctx, (unsigned char *)output,
- &olen, &data, SECP256K1_EC_COMPRESSED);
- s.put_data(output, output + _olen);
- }
-
- void unserialize(DataStream &s) override {
- static const auto _exc = std::invalid_argument("ill-formed public key");
- try {
- if (!secp256k1_ec_pubkey_parse(
- ctx->ctx, &data, s.get_data_inplace(_olen), _olen))
- throw _exc;
- } catch (std::ios_base::failure &) {
- throw _exc;
- }
- }
-
- PubKeySecp256k1 *clone() override {
- return new PubKeySecp256k1(*this);
- }
-};
-
-class PrivKeySecp256k1: public PrivKey {
- static const auto nbytes = 32;
- friend class PubKeySecp256k1;
- friend class SigSecp256k1;
- uint8_t data[nbytes];
- secp256k1_context_t ctx;
-
- public:
- PrivKeySecp256k1(const secp256k1_context_t &ctx =
- secp256k1_default_sign_ctx):
- PrivKey(), ctx(ctx) {}
-
- PrivKeySecp256k1(const bytearray_t &raw_bytes,
- const secp256k1_context_t &ctx =
- secp256k1_default_sign_ctx):
- PrivKeySecp256k1(ctx) { from_bytes(raw_bytes); }
-
- void serialize(DataStream &s) const override {
- s.put_data(data, data + nbytes);
- }
-
- void unserialize(DataStream &s) override {
- static const auto _exc = std::invalid_argument("ill-formed private key");
- try {
- memmove(data, s.get_data_inplace(nbytes), nbytes);
- } catch (std::ios_base::failure &) {
- throw _exc;
- }
- }
-
- void from_rand() override {
- if (!RAND_bytes(data, nbytes))
- throw std::runtime_error("cannot get rand bytes from openssl");
- }
-
- inline pubkey_bt get_pubkey() const override;
-};
-
-pubkey_bt PrivKeySecp256k1::get_pubkey() const {
- return new PubKeySecp256k1(*this, ctx);
-}
-
-PubKeySecp256k1::PubKeySecp256k1(
- const PrivKeySecp256k1 &priv_key,
- const secp256k1_context_t &ctx): PubKey(), ctx(ctx) {
- if (!secp256k1_ec_pubkey_create(ctx->ctx, &data, priv_key.data))
- throw std::invalid_argument("invalid secp256k1 private key");
-}
-
-class SigSecp256k1: public Serializable {
- secp256k1_ecdsa_signature data;
- secp256k1_context_t ctx;
-
- void check_msg_length(const bytearray_t &msg) {
- if (msg.size() != 32)
- throw std::invalid_argument("the message should be 32-bytes");
- }
-
- public:
- SigSecp256k1(const secp256k1_context_t &ctx =
- secp256k1_default_sign_ctx):
- Serializable(), ctx(ctx) {}
- SigSecp256k1(const uint256_t &digest,
- const PrivKeySecp256k1 &priv_key,
- secp256k1_context_t &ctx =
- secp256k1_default_sign_ctx):
- Serializable(), ctx(ctx) {
- sign(digest, priv_key);
- }
-
- void serialize(DataStream &s) const override {
- static uint8_t output[64];
- (void)secp256k1_ecdsa_signature_serialize_compact(
- ctx->ctx, (unsigned char *)output,
- &data);
- s.put_data(output, output + 64);
- }
-
- void unserialize(DataStream &s) override {
- static const auto _exc = std::invalid_argument("ill-formed signature");
- try {
- if (!secp256k1_ecdsa_signature_parse_compact(
- ctx->ctx, &data, s.get_data_inplace(64)))
- throw _exc;
- } catch (std::ios_base::failure &) {
- throw _exc;
- }
- }
-
- void sign(const bytearray_t &msg, const PrivKeySecp256k1 &priv_key) {
- check_msg_length(msg);
- if (!secp256k1_ecdsa_sign(
- ctx->ctx, &data,
- (unsigned char *)&*msg.begin(),
- (unsigned char *)priv_key.data,
- NULL, // default nonce function
- NULL))
- throw std::invalid_argument("failed to create secp256k1 signature");
- }
-
- bool verify(const bytearray_t &msg, const PubKeySecp256k1 &pub_key,
- const secp256k1_context_t &_ctx) {
- check_msg_length(msg);
- return secp256k1_ecdsa_verify(
- _ctx->ctx, &data,
- (unsigned char *)&*msg.begin(),
- &pub_key.data) == 1;
- }
-
- bool verify(const bytearray_t &msg, const PubKeySecp256k1 &pub_key) {
- return verify(msg, pub_key, ctx);
- }
-};
-
-class PartCertSecp256k1: public SigSecp256k1, public PartCert {
- uint256_t blk_hash;
-
- public:
- PartCertSecp256k1() = default;
- PartCertSecp256k1(const PrivKeySecp256k1 &priv_key, const uint256_t &blk_hash):
- SigSecp256k1(blk_hash, priv_key),
- PartCert(),
- blk_hash(blk_hash) {}
-
- bool verify(const PubKey &pub_key) override {
- return SigSecp256k1::verify(blk_hash,
- static_cast<const PubKeySecp256k1 &>(pub_key),
- secp256k1_default_verify_ctx);
- }
-
- const uint256_t &get_blk_hash() const override { return blk_hash; }
-
- PartCertSecp256k1 *clone() override {
- return new PartCertSecp256k1(*this);
- }
-
- void serialize(DataStream &s) const override {
- s << blk_hash;
- this->SigSecp256k1::serialize(s);
- }
-
- void unserialize(DataStream &s) override {
- s >> blk_hash;
- this->SigSecp256k1::unserialize(s);
- }
-};
-
-class QuorumCertSecp256k1: public QuorumCert {
- uint256_t blk_hash;
- salticidae::Bits rids;
- std::vector<SigSecp256k1> sigs;
-
- public:
- QuorumCertSecp256k1() = default;
- QuorumCertSecp256k1(const ReplicaConfig &config, const uint256_t &blk_hash);
-
- void add_part(ReplicaID rid, const PartCert &pc) override {
- if (pc.get_blk_hash() != blk_hash)
- throw std::invalid_argument("PartCert does match the block hash");
- if (!rids.get(rid))
- {
- rids.set(rid);
- sigs.push_back(static_cast<const PartCertSecp256k1 &>(pc));
- }
- }
-
- void compute() override {}
-
- bool verify(const ReplicaConfig &config) override;
-
- const uint256_t &get_blk_hash() const override { return blk_hash; }
-
- QuorumCertSecp256k1 *clone() override {
- return new QuorumCertSecp256k1(*this);
- }
-
- void serialize(DataStream &s) const override {
- s << blk_hash << rids;
- for (const auto &sig: sigs) s << sig;
- }
-
- void unserialize(DataStream &s) override {
- s >> blk_hash >> rids;
- sigs.resize(rids.size());
- for (auto &sig: sigs) s >> sig;
- }
-};
-
-}
-
-#endif