def pointMult(secret):
    while True:
        try:
            """
            Evidently, this type of error can occur very rarely:
            
            File "highlevelcrypto.py", line 54, in pointMult
              group = OpenSSL.EC_KEY_get0_group(k)
            WindowsError: exception: access violation reading 0x0000000000000008
            """
            k = OpenSSL.EC_KEY_new_by_curve_name(OpenSSL.get_curve('secp256k1'))
            priv_key = OpenSSL.BN_bin2bn(secret, 32, None)
            group = OpenSSL.EC_KEY_get0_group(k)
            pub_key = OpenSSL.EC_POINT_new(group)
            
            OpenSSL.EC_POINT_mul(group, pub_key, priv_key, None, None, None)
            OpenSSL.EC_KEY_set_private_key(k, priv_key)
            OpenSSL.EC_KEY_set_public_key(k, pub_key)
            
            size = OpenSSL.i2o_ECPublicKey(k, None)
            mb = OpenSSL.create_string_buffer(size)
            OpenSSL.i2o_ECPublicKey(k, OpenSSL.byref(OpenSSL.pointer(mb)))
            
            OpenSSL.EC_POINT_free(pub_key)
            OpenSSL.BN_free(priv_key)
            OpenSSL.EC_KEY_free(k)
            return mb.raw

        except Exception as e:
            import traceback
            import time
            traceback.print_exc()
            time.sleep(0.2)
Exemple #2
0
def pointMult(secret):
    while True:
        try:
            """
            Evidently, this type of error can occur very rarely:
            
            File "highlevelcrypto.py", line 54, in pointMult
              group = OpenSSL.EC_KEY_get0_group(k)
            WindowsError: exception: access violation reading 0x0000000000000008
            """
            k = OpenSSL.EC_KEY_new_by_curve_name(
                OpenSSL.get_curve('secp256k1'))
            priv_key = OpenSSL.BN_bin2bn(secret, 32, None)
            group = OpenSSL.EC_KEY_get0_group(k)
            pub_key = OpenSSL.EC_POINT_new(group)

            OpenSSL.EC_POINT_mul(group, pub_key, priv_key, None, None, None)
            OpenSSL.EC_KEY_set_private_key(k, priv_key)
            OpenSSL.EC_KEY_set_public_key(k, pub_key)

            size = OpenSSL.i2o_ECPublicKey(k, None)
            mb = OpenSSL.create_string_buffer(size)
            OpenSSL.i2o_ECPublicKey(k, OpenSSL.byref(OpenSSL.pointer(mb)))

            OpenSSL.EC_POINT_free(pub_key)
            OpenSSL.BN_free(priv_key)
            OpenSSL.EC_KEY_free(k)
            return mb.raw

        except Exception as e:
            import traceback
            import time
            traceback.print_exc()
            time.sleep(0.2)
def pointMult(secret):
    k = OpenSSL.EC_KEY_new_by_curve_name(OpenSSL.get_curve('secp256k1'))
    priv_key = OpenSSL.BN_bin2bn(secret, 32, None)
    group = OpenSSL.EC_KEY_get0_group(k)
    pub_key = OpenSSL.EC_POINT_new(group)
    
    OpenSSL.EC_POINT_mul(group, pub_key, priv_key, None, None, None)
    OpenSSL.EC_KEY_set_private_key(k, priv_key)
    OpenSSL.EC_KEY_set_public_key(k, pub_key)
    
    size = OpenSSL.i2o_ECPublicKey(k, None)
    mb = OpenSSL.create_string_buffer(size)
    OpenSSL.i2o_ECPublicKey(k, OpenSSL.byref(OpenSSL.pointer(mb)))
    
    OpenSSL.EC_POINT_free(pub_key)
    OpenSSL.BN_free(priv_key)
    OpenSSL.EC_KEY_free(k)
    return mb.raw
def pointMult(secret):
    k = OpenSSL.EC_KEY_new_by_curve_name(OpenSSL.get_curve('secp256k1'))
    priv_key = OpenSSL.BN_bin2bn(secret, 32, None)
    group = OpenSSL.EC_KEY_get0_group(k)
    pub_key = OpenSSL.EC_POINT_new(group)
    
    OpenSSL.EC_POINT_mul(group, pub_key, priv_key, None, None, None)
    OpenSSL.EC_KEY_set_private_key(k, priv_key)
    OpenSSL.EC_KEY_set_public_key(k, pub_key)
    
    size = OpenSSL.i2o_ECPublicKey(k, None)
    mb = OpenSSL.create_string_buffer(size)
    OpenSSL.i2o_ECPublicKey(k, OpenSSL.byref(OpenSSL.pointer(mb)))
    
    OpenSSL.EC_POINT_free(pub_key)
    OpenSSL.BN_free(priv_key)
    OpenSSL.EC_KEY_free(k)
    return mb.raw