chore(tests): update modexp eip-7883 to latest spec (#1729)

* chore(tests): update modexp eip-7883 to latest spec.

* chore(docs): changelog.

Author: spencer-tb

docs/CHANGELOG.md

@@ -62,7 +62,7 @@ Users can select any of the artifacts depending on their testing needs for their
 - 🔀 Refactored `SELFDESTRUCT` opcode collision tests to use the `pre_alloc` plugin in order to avoid contract and EOA address collisions ([#1643](https://github.com/ethereum/execution-spec-tests/pull/1643)).
 - ✨ EIP-7594: Sanity test cases to send blob transactions and verify `engine_getBlobsVX` using the `execute` command ([#1644](https://github.com/ethereum/execution-spec-tests/pull/1644)).
 - 🔀 Refactored EIP-145 static tests into python ([#1683](https://github.com/ethereum/execution-spec-tests/pull/1683)).
-- ✨ EIP-7823, EIP-7883: Add test cases for ModExp precompile gas-cost updates and input limits on Osaka ([#1579](https://github.com/ethereum/execution-spec-tests/pull/1579)).
+- ✨ EIP-7823, EIP-7883: Add test cases for ModExp precompile gas-cost updates and input limits on Osaka ([#1579](https://github.com/ethereum/execution-spec-tests/pull/1579), [#1729](https://github.com/ethereum/execution-spec-tests/pull/1729)).
 - ✨ [EIP-7825](https://eips.ethereum.org/EIPS/eip-7825): Add test cases for the transaction gas limit of 30M gas ([#1711](https://github.com/ethereum/execution-spec-tests/pull/1711)).
 
 ## [v4.5.0](https://github.com/ethereum/execution-spec-tests/releases/tag/v4.5.0) - 2025-05-14

tests/osaka/eip7883_modexp_gas_increase/spec.py

@@ -85,3 +85,13 @@ class Spec7883(Spec):
 
     LARGE_BASE_MODULUS_MULTIPLIER = 2
     EXPONENT_BYTE_MULTIPLIER = 16
+
+    @classmethod
+    def calculate_multiplication_complexity(cls, base_length: int, modulus_length: int) -> int:
+        """Calculate the multiplication complexity of the ModExp precompile for EIP-7883."""
+        max_length = max(base_length, modulus_length)
+        words = ceiling_division(max_length, cls.WORD_SIZE)
+        complexity = 16
+        if max_length > cls.MAX_LENGTH_THRESHOLD:
+            complexity = cls.LARGE_BASE_MODULUS_MULTIPLIER * words**2
+        return complexity

tests/osaka/eip7883_modexp_gas_increase/vectors.json

@@ -116,21 +116,21 @@
         "Expected": "36a385a417859b5e178d3ab9",
         "Name": "marius-1-even",
         "GasOld": 2057,
-        "GasNew": 3774
+        "GasNew": 15098
     },
     {
         "Input": "000000000000000000000000000000000000000000000000000000000000001000000000000000000000000000000000000000000000000000000000000000d80000000000000000000000000000000000000000000000000000000000000010ffffffffffffffff76ffffffffffffff1cffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffc7c7c7c7c7c7c7c7c7c7c7c7c7c7c7c7c7c7c7c7c7c76ec7c7c7c7ffffffffffffffc7c7c7c7c7c7c7c7c7c7c7c7c7c7c7c7c7c7c7c7c7c7ffffffffffffc7c7c7c7c7c7c7c7c7c7c7c7c7c7c7c7c7c7c7c7c7c76ec7c7c7c7c7c7c7c7c7c7c7c7c7c7c7c7c7c7c7c7c7c7c7c7c7c7c7c7c7c7c7c7c7c7c7c7c7c7c7c7c7ffffffffff3f000000000000000000000000",
         "Expected": "c3745de81615f80088ffffffffffffff",
         "Name": "guido-1-even",
         "GasOld": 2298,
-        "GasNew": 4261
+        "GasNew": 17045
     },
     {
         "Input": "000000000000000000000000000000000000000000000000000000000000001000000000000000000000000000000000000000000000000000000000000000d80000000000000000000000000000000000000000000000000000000000000010e0060000a921212121212121ff0000212b212121ffff1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f00feffff212121212121ffffffff1fe1e0e0e01e1f1f169f1f1f1f490afcefffffffffffffffff82828282828282828282828282828282828282828200ffff28ff2b212121ffff1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1fffffffffff0afceffffff7ffffffffff7c8282828282a1828282828282828282828282828200ffff28ff2b212121ffff1f1f1f1f1f1fd11f1f1f1f1f1f1f1f1f1f1fffffffffffffffff21212121212121fb2121212121ffff1f1f1f1f1f1f1f1fffaf82828282828200ffff28ff2b21828200",
         "Expected": "458ef0af2549d46d24c89079499479e1",
         "Name": "guido-2-even",
         "GasOld": 2300,
-        "GasNew": 4262
+        "GasNew": 17050
     },
     {
         "Input": "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",
@@ -144,7 +144,7 @@
         "Expected": "0001",
         "Name": "guido-4-even",
         "GasOld": 1026,
-        "GasNew": 1967
+        "GasNew": 31482
     },
     {
         "Input": "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",
@@ -158,7 +158,7 @@
         "Expected": "0000000000000000",
         "Name": "marcin-1-exp-heavy",
         "GasOld": 215,
-        "GasNew": 500
+        "GasNew": 5541
     },
     {
         "Input": "000000000000000000000000000000000000000000000000000000000000002800000000000000000000000000000000000000000000000000000000000000040000000000000000000000000000000000000000000000000000000000000028e8e77626586f73b955364c7b4bbf0bb7f7685ebd40e852b164633a4acbd3244c000102030405060701fffffff01681d2220bfea4bb888a5543db8c0916274ddb1ea93b144c042c01d8164c950001020304050607",
@@ -179,7 +179,7 @@
         "Expected": "00000000000000000000000000000000",
         "Name": "marcin-2-exp-heavy",
         "GasOld": 852,
-        "GasNew": 1364
+        "GasNew": 5456
     },
     {
         "Input": "000000000000000000000000000000000000000000000000000000000000003800000000000000000000000000000000000000000000000000000000000000080000000000000000000000000000000000000000000000000000000000000038e8e77626586f73b955364c7b4bbf0bb7f7685ebd40e852b164633a4acbd3244c000102030405060708090a0b0c0d0e0f10111213141516172bfffffffffffffff01681d2220bfea4bb888a5543db8c0916274ddb1ea93b144c042c01d8164c95000102030405060708090a0b0c0d0e0f1011121314151617",
@@ -200,7 +200,7 @@
         "Expected": "000000000000000000000000000000000000000000000000",
         "Name": "marcin-3-exp-heavy",
         "GasOld": 765,
-        "GasNew": 765
+        "GasNew": 1360
     },
     {
         "Input": "000000000000000000000000000000000000000000000000000000000000002000000000000000000000000000000000000000000000000000000000000000200000000000000000000000000000000000000000000000000000000000000020e8e77626586f73b955364c7b4bbf0bb7f7685ebd40e852b164633a4acbd3244cfffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff01681d2220bfea4bb888a5543db8c0916274ddb1ea93b144c042c01d8164c95",