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fix: prevent privkey modified by ec_seckey_verify method #16

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fix: prevent privkey modified by ec_seckey_verify method #16

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9 changes: 1 addition & 8 deletions c_src/libsecp256k1_nif.c
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Original file line number Diff line number Diff line change
Expand Up @@ -165,16 +165,9 @@ ec_seckey_verify(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[])
}

if (privkey.size != 32) {
return enif_make_badarg(env);
}

secp256k1_scalar_set_b32(&key, b32, &overflow);
if (overflow || secp256k1_scalar_is_zero(&key)) {
return enif_make_int(env, 0);
return error_result(env, "Private key size != 32 bytes");
}

secp256k1_scalar_get_b32(privkey.data, &key);

result = secp256k1_ec_seckey_verify(ctx, privkey.data);
return atom_from_result(env, result);
}
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