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