[test] Move test framework crypto functions to crypto/

test/functional/feature_taproot.py

@@ -105,7 +105,7 @@ from test_framework.key import (
     tweak_add_privkey,
     ECKey,
 )
-from test_framework import secp256k1
+from test_framework.crypto import secp256k1
 from test_framework.address import (
     hash160,
     program_to_witness,

test/functional/feature_utxo_set_hash.py

@@ -11,7 +11,7 @@ from test_framework.messages import (
     COutPoint,
     from_hex,
 )
-from test_framework.muhash import MuHash3072
+from test_framework.crypto.muhash import MuHash3072
 from test_framework.test_framework import BitcoinTestFramework
 from test_framework.util import assert_equal
 from test_framework.wallet import MiniWallet

test/functional/test_framework/blockfilter.py

@@ -4,7 +4,7 @@
 # file COPYING or http://www.opensource.org/licenses/mit-license.php.
 """Helper routines relevant for compact block filters (BIP158).
 """
-from .siphash import siphash
+from .crypto.siphash import siphash
 
 
 def bip158_basic_element_hash(script_pub_key, N, block_hash):

test/functional/test_framework/crypto/ellswift.py

@@ -12,7 +12,7 @@ import os
 import random
 import unittest
 
-from test_framework.secp256k1 import FE, G, GE
+from test_framework.crypto.secp256k1 import FE, G, GE
 
 # Precomputed constant square root of -3 (mod p).
 MINUS_3_SQRT = FE(-3).sqrt()