Add windows definitions.

Dockerfile_compile_dll

@@ -0,0 +1,34 @@
+FROM ubuntu:bionic as build
+
+# Install required system packages
+RUN apt-get update && apt-get install -y \
+    build-essential \
+    mingw-w64 \
+    autoconf \
+    libtool \
+    wget \
+    unzip
+
+ARG UNAME=user
+ARG UID=1000
+ARG GID=1000
+RUN groupadd -g $GID -o $UNAME
+RUN useradd -m -u $UID -g $GID -o -s /bin/bash $UNAME
+
+USER $UNAME
+
+WORKDIR /home/user
+
+RUN wget -O secp256k1_anonswap.zip https://github.com/tecnovert/secp256k1/archive/refs/tags/anonswap_v0.1.zip && \
+    unzip secp256k1_anonswap.zip && \
+    mv secp256k1-anonswap_v0.1 64bit
+
+RUN cd 64bit && \
+    ./autogen.sh && \
+    echo "LDFLAGS = -no-undefined" >> Makefile.am && \
+    ./configure --host=x86_64-w64-mingw32 --enable-module-recovery --enable-experimental --enable-module-ecdh --enable-module-extrakeys --enable-module-schnorrsig --enable-benchmark=no --enable-tests=no --enable-openssl-tests=no --enable-exhaustive-tests=no --enable-static --disable-dependency-tracking --with-pic --enable-module-ed25519 --enable-module-generator --enable-module-dleag --enable-module-ecdsaotves && \
+    make && \
+    mv .libs/libsecp256k1-0.dll .
+
+FROM scratch as artifact
+COPY --from=build /home/user/64bit/libsecp256k1-0.dll /coincurve/libsecp256k1.dll

_cffi_build/secp256k1_ed25519.h

@@ -1,10 +1,19 @@
 extern const unsigned char ed25519_gen[32];
 extern const unsigned char ed25519_gen2[32];
 
-int crypto_scalarmult_ed25519_base_noclamp(unsigned char *q, const unsigned char *n);
+int crypto_scalarmult_ed25519_base_noclamp(
+    unsigned char *q,
+    const unsigned char *n
+);
 
-int crypto_core_ed25519_add(unsigned char *r,
-                            const unsigned char *p, const unsigned char *q);
+int crypto_core_ed25519_add(
+    unsigned char *r,
+    const unsigned char *p,
+    const unsigned char *q
+);
 
-void crypto_core_ed25519_scalar_add(unsigned char *z, const unsigned char *x,
-                                    const unsigned char *y);
+void crypto_core_ed25519_scalar_add(
+    unsigned char *z,
+    const unsigned char *x,
+    const unsigned char *y
+);

coincurve/_windows_libsecp256k1.py

@@ -364,6 +364,104 @@ int secp256k1_ecdh(
 );
 """
 
+DLEAG_DEFINITIONS = """
+typedef struct {
+    unsigned char data[64];
+} secp256k1_generator;
+
+size_t secp256k1_dleag_size(size_t n_bits);
+
+int secp256k1_dleag_prove(
+    const secp256k1_context *ctx,
+    unsigned char *proof_out,
+    size_t *proof_len,              /* Input length of proof_out buffer, output length of proof. */
+    const unsigned char *key,       /* 32 bytes */
+    size_t n_bits,
+    const unsigned char *nonce,     /* 32 bytes */
+    const secp256k1_generator *gen_s_a,
+    const secp256k1_generator *gen_s_b,
+    const unsigned char *gen_e_a,
+    const unsigned char *gen_e_b
+);
+
+int secp256k1_dleag_verify(
+    const secp256k1_context *ctx,
+    const unsigned char *proof,
+    size_t proof_len,
+    const secp256k1_generator *gen_s_a,
+    const secp256k1_generator *gen_s_b,
+    const unsigned char *gen_e_a,
+    const unsigned char *gen_e_b
+);
+
+int secp256k1_dleag_verify_secp256k1_point(
+    const secp256k1_context *ctx,
+    const unsigned char *p
+);
+
+int secp256k1_dleag_verify_ed25519_point(
+    const secp256k1_context *ctx,
+    const unsigned char *p
+);
+"""
+
+ECDSA_OTVES_DEFINITIONS = """
+int ecdsaotves_enc_sign(
+    const secp256k1_context *ctx,
+    unsigned char *ct_out,
+    const unsigned char *skS,
+    const unsigned char *pkE,
+    const unsigned char *msg32
+);
+
+int ecdsaotves_enc_verify(
+    const secp256k1_context *ctx,
+    const unsigned char *pkS,
+    const unsigned char *pkE,
+    const unsigned char *msg32,
+    const unsigned char *ct
+);
+
+int ecdsaotves_dec_sig(
+    const secp256k1_context *ctx,
+    unsigned char *sig_out,
+    size_t *sig_length,
+    const unsigned char *skE,
+    const unsigned char *ct
+);
+
+int ecdsaotves_rec_enc_key(
+    const secp256k1_context *ctx,
+    unsigned char *key_out,
+    const unsigned char *pkE,
+    const unsigned char *ct,
+    const unsigned char *dersig,
+    size_t sig_length
+);
+"""
+
+ED25519_DEFINITIONS = """
+extern const unsigned char ed25519_gen[32];
+extern const unsigned char ed25519_gen2[32];
+
+int crypto_scalarmult_ed25519_base_noclamp(
+    unsigned char *q,
+    const unsigned char *n
+);
+
+int crypto_core_ed25519_add(
+    unsigned char *r,
+    const unsigned char *p,
+    const unsigned char *q
+);
+
+void crypto_core_ed25519_scalar_add(
+    unsigned char *z,
+    const unsigned char *x,
+    const unsigned char *y
+);
+"""
+
 ffi = FFI()
 
 ffi.cdef(BASE_DEFINITIONS)
@@ -371,6 +469,9 @@ ffi.cdef(EXTRAKEYS_DEFINITIONS)
 ffi.cdef(RECOVERY_DEFINITIONS)
 ffi.cdef(SCHNORRSIG_DEFINITIONS)
 ffi.cdef(ECDH_DEFINITIONS)
+ffi.cdef(DLEAG_DEFINITIONS)
+ffi.cdef(ECDSA_OTVES_DEFINITIONS)
+ffi.cdef(ED25519_DEFINITIONS)
 
 here = os.path.dirname(os.path.abspath(__file__))
 lib = ffi.dlopen(os.path.join(here, 'libsecp256k1.dll'))