tecnovert
6 months ago
2 changed files with 469 additions and 0 deletions
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import os |
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from cffi import FFI |
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BASE_DEFINITIONS = """ |
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typedef struct secp256k1_context_struct secp256k1_context; |
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typedef struct { |
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unsigned char data[64]; |
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} secp256k1_pubkey; |
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typedef struct { |
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unsigned char data[64]; |
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} secp256k1_ecdsa_signature; |
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typedef int (*secp256k1_nonce_function)( |
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unsigned char *nonce32, |
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const unsigned char *msg32, |
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const unsigned char *key32, |
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const unsigned char *algo16, |
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void *data, |
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unsigned int attempt |
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); |
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#define SECP256K1_FLAGS_TYPE_MASK 255 |
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#define SECP256K1_FLAGS_TYPE_CONTEXT 1 |
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#define SECP256K1_FLAGS_TYPE_COMPRESSION 2 |
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|
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#define SECP256K1_FLAGS_BIT_CONTEXT_VERIFY 256 |
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#define SECP256K1_FLAGS_BIT_CONTEXT_SIGN 512 |
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#define SECP256K1_FLAGS_BIT_COMPRESSION 256 |
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|
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#define SECP256K1_CONTEXT_VERIFY 257 |
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#define SECP256K1_CONTEXT_SIGN 513 |
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#define SECP256K1_CONTEXT_NONE 1 |
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#define SECP256K1_EC_COMPRESSED 258 |
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#define SECP256K1_EC_UNCOMPRESSED 2 |
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secp256k1_context* secp256k1_context_create( |
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unsigned int flags |
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); |
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secp256k1_context* secp256k1_context_clone( |
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const secp256k1_context* ctx |
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); |
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void secp256k1_context_destroy( |
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secp256k1_context* ctx |
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); |
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void secp256k1_context_set_illegal_callback( |
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secp256k1_context* ctx, |
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void (*fun)(const char* message, void* data), |
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const void* data |
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); |
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void secp256k1_context_set_error_callback( |
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secp256k1_context* ctx, |
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void (*fun)(const char* message, void* data), |
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const void* data |
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); |
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int secp256k1_ec_pubkey_parse( |
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const secp256k1_context* ctx, |
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secp256k1_pubkey* pubkey, |
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const unsigned char *input, |
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size_t inputlen |
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); |
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int secp256k1_ec_pubkey_serialize( |
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const secp256k1_context* ctx, |
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unsigned char *output, |
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size_t *outputlen, |
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const secp256k1_pubkey* pubkey, |
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unsigned int flags |
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); |
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int secp256k1_ecdsa_signature_parse_compact( |
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const secp256k1_context* ctx, |
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secp256k1_ecdsa_signature* sig, |
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const unsigned char *input64 |
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); |
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int secp256k1_ecdsa_signature_parse_der( |
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const secp256k1_context* ctx, |
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secp256k1_ecdsa_signature* sig, |
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const unsigned char *input, |
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size_t inputlen |
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); |
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int secp256k1_ecdsa_signature_serialize_der( |
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const secp256k1_context* ctx, |
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unsigned char *output, |
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size_t *outputlen, |
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const secp256k1_ecdsa_signature* sig |
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); |
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int secp256k1_ecdsa_signature_serialize_compact( |
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const secp256k1_context* ctx, |
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unsigned char *output64, |
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const secp256k1_ecdsa_signature* sig |
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); |
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int secp256k1_ecdsa_verify( |
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const secp256k1_context* ctx, |
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const secp256k1_ecdsa_signature *sig, |
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const unsigned char *msg32, |
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const secp256k1_pubkey *pubkey |
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); |
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int secp256k1_ecdsa_signature_normalize( |
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const secp256k1_context* ctx, |
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secp256k1_ecdsa_signature *sigout, |
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const secp256k1_ecdsa_signature *sigin |
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); |
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extern const secp256k1_nonce_function secp256k1_nonce_function_rfc6979; |
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extern const secp256k1_nonce_function secp256k1_nonce_function_default; |
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int secp256k1_ecdsa_sign( |
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const secp256k1_context* ctx, |
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secp256k1_ecdsa_signature *sig, |
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const unsigned char *msg32, |
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const unsigned char *seckey, |
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secp256k1_nonce_function noncefp, |
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const void *ndata |
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); |
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int secp256k1_ec_seckey_verify( |
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const secp256k1_context* ctx, |
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const unsigned char *seckey |
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); |
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int secp256k1_ec_pubkey_create( |
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const secp256k1_context* ctx, |
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secp256k1_pubkey *pubkey, |
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const unsigned char *seckey |
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); |
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int secp256k1_ec_privkey_tweak_add( |
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const secp256k1_context* ctx, |
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unsigned char *seckey, |
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const unsigned char *tweak |
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); |
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int secp256k1_ec_pubkey_tweak_add( |
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const secp256k1_context* ctx, |
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secp256k1_pubkey *pubkey, |
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const unsigned char *tweak |
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); |
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int secp256k1_ec_privkey_tweak_mul( |
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const secp256k1_context* ctx, |
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unsigned char *seckey, |
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const unsigned char *tweak |
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); |
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int secp256k1_ec_pubkey_tweak_mul( |
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const secp256k1_context* ctx, |
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secp256k1_pubkey *pubkey, |
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const unsigned char *tweak |
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); |
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int secp256k1_context_randomize( |
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secp256k1_context* ctx, |
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const unsigned char *seed32 |
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); |
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int secp256k1_ec_pubkey_combine( |
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const secp256k1_context* ctx, |
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secp256k1_pubkey *out, |
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const secp256k1_pubkey * const * ins, |
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size_t n |
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); |
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""" |
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EXTRAKEYS_DEFINITIONS = """ |
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typedef struct { |
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unsigned char data[64]; |
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} secp256k1_xonly_pubkey; |
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typedef struct { |
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unsigned char data[96]; |
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} secp256k1_keypair; |
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int secp256k1_xonly_pubkey_parse( |
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const secp256k1_context* ctx, |
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secp256k1_xonly_pubkey* pubkey, |
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const unsigned char *input32 |
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); |
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int secp256k1_xonly_pubkey_serialize( |
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const secp256k1_context* ctx, |
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unsigned char *output32, |
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const secp256k1_xonly_pubkey* pubkey |
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); |
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int secp256k1_xonly_pubkey_cmp( |
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const secp256k1_context* ctx, |
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const secp256k1_xonly_pubkey* pk1, |
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const secp256k1_xonly_pubkey* pk2 |
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); |
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int secp256k1_xonly_pubkey_from_pubkey( |
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const secp256k1_context* ctx, |
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secp256k1_xonly_pubkey *xonly_pubkey, |
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int *pk_parity, |
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const secp256k1_pubkey *pubkey |
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); |
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int secp256k1_xonly_pubkey_tweak_add( |
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const secp256k1_context* ctx, |
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secp256k1_pubkey *output_pubkey, |
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const secp256k1_xonly_pubkey *internal_pubkey, |
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const unsigned char *tweak32 |
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); |
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int secp256k1_xonly_pubkey_tweak_add_check( |
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const secp256k1_context* ctx, |
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const unsigned char *tweaked_pubkey32, |
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int tweaked_pk_parity, |
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const secp256k1_xonly_pubkey *internal_pubkey, |
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const unsigned char *tweak32 |
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); |
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int secp256k1_keypair_create( |
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const secp256k1_context* ctx, |
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secp256k1_keypair *keypair, |
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const unsigned char *seckey |
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); |
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int secp256k1_keypair_sec( |
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const secp256k1_context* ctx, |
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unsigned char *seckey, |
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const secp256k1_keypair *keypair |
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); |
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int secp256k1_keypair_pub( |
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const secp256k1_context* ctx, |
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secp256k1_pubkey *pubkey, |
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const secp256k1_keypair *keypair |
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); |
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int secp256k1_keypair_xonly_pub( |
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const secp256k1_context* ctx, |
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secp256k1_xonly_pubkey *pubkey, |
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int *pk_parity, |
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const secp256k1_keypair *keypair |
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); |
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int secp256k1_keypair_xonly_tweak_add( |
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const secp256k1_context* ctx, |
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secp256k1_keypair *keypair, |
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const unsigned char *tweak32 |
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); |
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""" |
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RECOVERY_DEFINITIONS = """ |
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typedef struct { |
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unsigned char data[65]; |
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} secp256k1_ecdsa_recoverable_signature; |
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int secp256k1_ecdsa_recoverable_signature_parse_compact( |
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const secp256k1_context* ctx, |
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secp256k1_ecdsa_recoverable_signature* sig, |
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const unsigned char *input64, |
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int recid |
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); |
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int secp256k1_ecdsa_recoverable_signature_convert( |
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const secp256k1_context* ctx, |
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secp256k1_ecdsa_signature* sig, |
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const secp256k1_ecdsa_recoverable_signature* sigin |
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); |
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int secp256k1_ecdsa_recoverable_signature_serialize_compact( |
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const secp256k1_context* ctx, |
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unsigned char *output64, |
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int *recid, |
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const secp256k1_ecdsa_recoverable_signature* sig |
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); |
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int secp256k1_ecdsa_sign_recoverable( |
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const secp256k1_context* ctx, |
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secp256k1_ecdsa_recoverable_signature *sig, |
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const unsigned char *msg32, |
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const unsigned char *seckey, |
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secp256k1_nonce_function noncefp, |
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const void *ndata |
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); |
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int secp256k1_ecdsa_recover( |
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const secp256k1_context* ctx, |
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secp256k1_pubkey *pubkey, |
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const secp256k1_ecdsa_recoverable_signature *sig, |
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const unsigned char *msg32 |
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); |
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""" |
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SCHNORRSIG_DEFINITIONS = """ |
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typedef int (*secp256k1_nonce_function_hardened)( |
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unsigned char *nonce32, |
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const unsigned char *msg, |
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size_t msglen, |
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const unsigned char *key32, |
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const unsigned char *xonly_pk32, |
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const unsigned char *algo, |
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size_t algolen, |
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void *data |
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); |
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extern const secp256k1_nonce_function_hardened secp256k1_nonce_function_bip340; |
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typedef struct { |
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unsigned char magic[4]; |
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secp256k1_nonce_function_hardened noncefp; |
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void* ndata; |
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} secp256k1_schnorrsig_extraparams; |
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int secp256k1_schnorrsig_sign( |
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const secp256k1_context* ctx, |
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unsigned char *sig64, |
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const unsigned char *msg32, |
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const secp256k1_keypair *keypair, |
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const unsigned char *aux_rand32 |
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); |
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int secp256k1_schnorrsig_sign32( |
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const secp256k1_context* ctx, |
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unsigned char *sig64, |
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const unsigned char *msg32, |
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const secp256k1_keypair *keypair, |
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const unsigned char *aux_rand32 |
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); |
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int secp256k1_schnorrsig_sign_custom( |
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const secp256k1_context* ctx, |
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unsigned char *sig64, |
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const unsigned char *msg, |
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size_t msglen, |
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const secp256k1_keypair *keypair, |
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secp256k1_schnorrsig_extraparams *extraparams |
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); |
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int secp256k1_schnorrsig_verify( |
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const secp256k1_context* ctx, |
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const unsigned char *sig64, |
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const unsigned char *msg, |
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size_t msglen, |
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const secp256k1_xonly_pubkey *pubkey |
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); |
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""" |
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ECDH_DEFINITIONS = """ |
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int secp256k1_ecdh( |
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const secp256k1_context* ctx, |
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unsigned char *result, |
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const secp256k1_pubkey *pubkey, |
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const unsigned char *privkey, |
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void *hashfp, |
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void *data |
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); |
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""" |
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DLEAG_DEFINITIONS = """ |
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typedef struct { |
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unsigned char data[64]; |
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} secp256k1_generator; |
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size_t secp256k1_dleag_size(size_t n_bits); |
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int secp256k1_ed25519_dleag_prove( |
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const secp256k1_context *ctx, |
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unsigned char *proof_out, |
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size_t *proof_len, /* Input length of proof_out buffer, output length of proof. */ |
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const unsigned char *key, /* 32 bytes */ |
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size_t n_bits, |
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const unsigned char *nonce /* 32 bytes */ |
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); |
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int secp256k1_ed25519_dleag_verify( |
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const secp256k1_context *ctx, |
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const unsigned char *proof, |
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size_t proof_len |
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); |
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int secp256k1_dleag_verify_secp256k1_point( |
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const secp256k1_context *ctx, |
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const unsigned char *p |
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); |
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int secp256k1_dleag_verify_ed25519_point( |
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const secp256k1_context *ctx, |
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const unsigned char *p |
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); |
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""" |
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|
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ECDSA_OTVES_DEFINITIONS = """ |
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int ecdsaotves_enc_sign( |
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const secp256k1_context *ctx, |
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unsigned char *ct_out, |
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const unsigned char *skS, |
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const unsigned char *pkE, |
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const unsigned char *msg32 |
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); |
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int ecdsaotves_enc_verify( |
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const secp256k1_context *ctx, |
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const unsigned char *pkS, |
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const unsigned char *pkE, |
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const unsigned char *msg32, |
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const unsigned char *ct |
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); |
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int ecdsaotves_dec_sig( |
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const secp256k1_context *ctx, |
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unsigned char *sig_out, |
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size_t *sig_length, |
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const unsigned char *skE, |
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const unsigned char *ct |
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); |
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int ecdsaotves_rec_enc_key( |
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const secp256k1_context *ctx, |
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unsigned char *key_out, |
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const unsigned char *pkE, |
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const unsigned char *ct, |
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const unsigned char *dersig, |
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size_t sig_length |
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); |
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""" |
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|
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ED25519_DEFINITIONS = """ |
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extern const unsigned char ed25519_gen[32]; |
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extern const unsigned char ed25519_gen2[32]; |
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int crypto_scalarmult_ed25519_base_noclamp( |
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unsigned char *q, |
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const unsigned char *n |
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); |
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int crypto_core_ed25519_add( |
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unsigned char *r, |
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const unsigned char *p, |
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const unsigned char *q |
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); |
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void crypto_core_ed25519_scalar_add( |
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unsigned char *z, |
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const unsigned char *x, |
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const unsigned char *y |
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); |
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""" |
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ffi = FFI() |
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|
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ffi.cdef(BASE_DEFINITIONS) |
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ffi.cdef(EXTRAKEYS_DEFINITIONS) |
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ffi.cdef(RECOVERY_DEFINITIONS) |
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ffi.cdef(SCHNORRSIG_DEFINITIONS) |
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ffi.cdef(ECDH_DEFINITIONS) |
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ffi.cdef(DLEAG_DEFINITIONS) |
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ffi.cdef(ECDSA_OTVES_DEFINITIONS) |
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ffi.cdef(ED25519_DEFINITIONS) |
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here = os.path.dirname(os.path.abspath(__file__)) |
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lib = ffi.dlopen(os.path.join(here, 'libsecp256k1.dll')) |
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