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Simplify implementation: remove bytes_in and bytes_out counters from all classes.

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This commit is contained in:
Leo Vasanko
2025-11-08 20:09:26 -06:00
parent 75cbc76845
commit a6faaf9f62
7 changed files with 12 additions and 237 deletions
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36
pyaegis/aegis128l.py
View File

@@ -554,7 +554,7 @@ class Encryptor:
- final([into]) -> returns MAC tag
"""
__slots__ = ("_state", "_bytes_in", "_bytes_out", "_maclen")
__slots__ = ("_state", "_maclen")
def __init__(
self,
@@ -588,23 +588,8 @@ class Encryptor:
_ptr(nonce),
_ptr(key),
)
self._bytes_in = 0
self._bytes_out = 0
self._maclen = maclen
@property
def bytes_in(self) -> int:
"""Total plaintext bytes fed to update() so far."""
return self._bytes_in
@property
def bytes_out(self) -> int:
"""Total ciphertext bytes produced so far.
Includes update() and final() output.
"""
return self._bytes_out
def update(
self, message: Buffer, into: Buffer | None = None
) -> bytearray | memoryview:
@@ -647,8 +632,6 @@ class Encryptor:
)
w = int(written[0])
assert w == expected_out
self._bytes_in += len(message)
self._bytes_out += w
return out if into is None else memoryview(out)[:w] # type: ignore
def final(self, into: Buffer | None = None) -> bytearray | memoryview:
@@ -684,7 +667,6 @@ class Encryptor:
if into is None:
# Only the tag bytes are returned when we allocate the buffer
assert w == maclen
self._bytes_out += w
self._state = None
return out if into is None else memoryview(out)[:w] # type: ignore
@@ -696,7 +678,7 @@ class Decryptor:
- final(mac) -> verifies the MAC tag
"""
__slots__ = ("_state", "_bytes_in", "_bytes_out", "_maclen")
__slots__ = ("_state", "_maclen")
def __init__(
self,
@@ -730,20 +712,8 @@ class Decryptor:
_ptr(nonce),
_ptr(key),
)
self._bytes_in = 0
self._bytes_out = 0
self._maclen = maclen
@property
def bytes_in(self) -> int:
"""Total ciphertext bytes fed to update() so far."""
return self._bytes_in
@property
def bytes_out(self) -> int:
"""Total plaintext bytes produced so far."""
return self._bytes_out
def update(self, ct: Buffer, into: Buffer | None = None) -> bytearray | memoryview:
"""Process a chunk of ciphertext.
@@ -780,8 +750,6 @@ class Decryptor:
raise RuntimeError(f"state decrypt update failed: {err_name}")
w = int(written[0])
assert w == expected_out, f"got {w}, expected {expected_out}, len(ct)={len(ct)}"
self._bytes_in += len(ct)
self._bytes_out += w
return out if into is None else memoryview(out)[:w] # type: ignore
def final(self, mac: Buffer) -> None:

36
pyaegis/aegis128x2.py
View File

@@ -554,7 +554,7 @@ class Encryptor:
- final([into]) -> returns MAC tag
"""
__slots__ = ("_state", "_bytes_in", "_bytes_out", "_maclen")
__slots__ = ("_state", "_maclen")
def __init__(
self,
@@ -588,23 +588,8 @@ class Encryptor:
_ptr(nonce),
_ptr(key),
)
self._bytes_in = 0
self._bytes_out = 0
self._maclen = maclen
@property
def bytes_in(self) -> int:
"""Total plaintext bytes fed to update() so far."""
return self._bytes_in
@property
def bytes_out(self) -> int:
"""Total ciphertext bytes produced so far.
Includes update() and final() output.
"""
return self._bytes_out
def update(
self, message: Buffer, into: Buffer | None = None
) -> bytearray | memoryview:
@@ -647,8 +632,6 @@ class Encryptor:
)
w = int(written[0])
assert w == expected_out
self._bytes_in += len(message)
self._bytes_out += w
return out if into is None else memoryview(out)[:w] # type: ignore
def final(self, into: Buffer | None = None) -> bytearray | memoryview:
@@ -684,7 +667,6 @@ class Encryptor:
if into is None:
# Only the tag bytes are returned when we allocate the buffer
assert w == maclen
self._bytes_out += w
self._state = None
return out if into is None else memoryview(out)[:w] # type: ignore
@@ -696,7 +678,7 @@ class Decryptor:
- final(mac) -> verifies the MAC tag
"""
__slots__ = ("_state", "_bytes_in", "_bytes_out", "_maclen")
__slots__ = ("_state", "_maclen")
def __init__(
self,
@@ -730,20 +712,8 @@ class Decryptor:
_ptr(nonce),
_ptr(key),
)
self._bytes_in = 0
self._bytes_out = 0
self._maclen = maclen
@property
def bytes_in(self) -> int:
"""Total ciphertext bytes fed to update() so far."""
return self._bytes_in
@property
def bytes_out(self) -> int:
"""Total plaintext bytes produced so far."""
return self._bytes_out
def update(self, ct: Buffer, into: Buffer | None = None) -> bytearray | memoryview:
"""Process a chunk of ciphertext.
@@ -780,8 +750,6 @@ class Decryptor:
raise RuntimeError(f"state decrypt update failed: {err_name}")
w = int(written[0])
assert w == expected_out, f"got {w}, expected {expected_out}, len(ct)={len(ct)}"
self._bytes_in += len(ct)
self._bytes_out += w
return out if into is None else memoryview(out)[:w] # type: ignore
def final(self, mac: Buffer) -> None:

36
pyaegis/aegis128x4.py
View File

@@ -554,7 +554,7 @@ class Encryptor:
- final([into]) -> returns MAC tag
"""
__slots__ = ("_state", "_bytes_in", "_bytes_out", "_maclen")
__slots__ = ("_state", "_maclen")
def __init__(
self,
@@ -588,23 +588,8 @@ class Encryptor:
_ptr(nonce),
_ptr(key),
)
self._bytes_in = 0
self._bytes_out = 0
self._maclen = maclen
@property
def bytes_in(self) -> int:
"""Total plaintext bytes fed to update() so far."""
return self._bytes_in
@property
def bytes_out(self) -> int:
"""Total ciphertext bytes produced so far.
Includes update() and final() output.
"""
return self._bytes_out
def update(
self, message: Buffer, into: Buffer | None = None
) -> bytearray | memoryview:
@@ -647,8 +632,6 @@ class Encryptor:
)
w = int(written[0])
assert w == expected_out
self._bytes_in += len(message)
self._bytes_out += w
return out if into is None else memoryview(out)[:w] # type: ignore
def final(self, into: Buffer | None = None) -> bytearray | memoryview:
@@ -684,7 +667,6 @@ class Encryptor:
if into is None:
# Only the tag bytes are returned when we allocate the buffer
assert w == maclen
self._bytes_out += w
self._state = None
return out if into is None else memoryview(out)[:w] # type: ignore
@@ -696,7 +678,7 @@ class Decryptor:
- final(mac) -> verifies the MAC tag
"""
__slots__ = ("_state", "_bytes_in", "_bytes_out", "_maclen")
__slots__ = ("_state", "_maclen")
def __init__(
self,
@@ -730,20 +712,8 @@ class Decryptor:
_ptr(nonce),
_ptr(key),
)
self._bytes_in = 0
self._bytes_out = 0
self._maclen = maclen
@property
def bytes_in(self) -> int:
"""Total ciphertext bytes fed to update() so far."""
return self._bytes_in
@property
def bytes_out(self) -> int:
"""Total plaintext bytes produced so far."""
return self._bytes_out
def update(self, ct: Buffer, into: Buffer | None = None) -> bytearray | memoryview:
"""Process a chunk of ciphertext.
@@ -780,8 +750,6 @@ class Decryptor:
raise RuntimeError(f"state decrypt update failed: {err_name}")
w = int(written[0])
assert w == expected_out, f"got {w}, expected {expected_out}, len(ct)={len(ct)}"
self._bytes_in += len(ct)
self._bytes_out += w
return out if into is None else memoryview(out)[:w] # type: ignore
def final(self, mac: Buffer) -> None:

36
pyaegis/aegis256.py
View File

@@ -554,7 +554,7 @@ class Encryptor:
- final([into]) -> returns MAC tag
"""
__slots__ = ("_state", "_bytes_in", "_bytes_out", "_maclen")
__slots__ = ("_state", "_maclen")
def __init__(
self,
@@ -588,23 +588,8 @@ class Encryptor:
_ptr(nonce),
_ptr(key),
)
self._bytes_in = 0
self._bytes_out = 0
self._maclen = maclen
@property
def bytes_in(self) -> int:
"""Total plaintext bytes fed to update() so far."""
return self._bytes_in
@property
def bytes_out(self) -> int:
"""Total ciphertext bytes produced so far.
Includes update() and final() output.
"""
return self._bytes_out
def update(
self, message: Buffer, into: Buffer | None = None
) -> bytearray | memoryview:
@@ -647,8 +632,6 @@ class Encryptor:
)
w = int(written[0])
assert w == expected_out
self._bytes_in += len(message)
self._bytes_out += w
return out if into is None else memoryview(out)[:w] # type: ignore
def final(self, into: Buffer | None = None) -> bytearray | memoryview:
@@ -684,7 +667,6 @@ class Encryptor:
if into is None:
# Only the tag bytes are returned when we allocate the buffer
assert w == maclen
self._bytes_out += w
self._state = None
return out if into is None else memoryview(out)[:w] # type: ignore
@@ -696,7 +678,7 @@ class Decryptor:
- final(mac) -> verifies the MAC tag
"""
__slots__ = ("_state", "_bytes_in", "_bytes_out", "_maclen")
__slots__ = ("_state", "_maclen")
def __init__(
self,
@@ -730,20 +712,8 @@ class Decryptor:
_ptr(nonce),
_ptr(key),
)
self._bytes_in = 0
self._bytes_out = 0
self._maclen = maclen
@property
def bytes_in(self) -> int:
"""Total ciphertext bytes fed to update() so far."""
return self._bytes_in
@property
def bytes_out(self) -> int:
"""Total plaintext bytes produced so far."""
return self._bytes_out
def update(self, ct: Buffer, into: Buffer | None = None) -> bytearray | memoryview:
"""Process a chunk of ciphertext.
@@ -780,8 +750,6 @@ class Decryptor:
raise RuntimeError(f"state decrypt update failed: {err_name}")
w = int(written[0])
assert w == expected_out, f"got {w}, expected {expected_out}, len(ct)={len(ct)}"
self._bytes_in += len(ct)
self._bytes_out += w
return out if into is None else memoryview(out)[:w] # type: ignore
def final(self, mac: Buffer) -> None:

36
pyaegis/aegis256x2.py
View File

@@ -554,7 +554,7 @@ class Encryptor:
- final([into]) -> returns MAC tag
"""
__slots__ = ("_state", "_bytes_in", "_bytes_out", "_maclen")
__slots__ = ("_state", "_maclen")
def __init__(
self,
@@ -588,23 +588,8 @@ class Encryptor:
_ptr(nonce),
_ptr(key),
)
self._bytes_in = 0
self._bytes_out = 0
self._maclen = maclen
@property
def bytes_in(self) -> int:
"""Total plaintext bytes fed to update() so far."""
return self._bytes_in
@property
def bytes_out(self) -> int:
"""Total ciphertext bytes produced so far.
Includes update() and final() output.
"""
return self._bytes_out
def update(
self, message: Buffer, into: Buffer | None = None
) -> bytearray | memoryview:
@@ -647,8 +632,6 @@ class Encryptor:
)
w = int(written[0])
assert w == expected_out
self._bytes_in += len(message)
self._bytes_out += w
return out if into is None else memoryview(out)[:w] # type: ignore
def final(self, into: Buffer | None = None) -> bytearray | memoryview:
@@ -684,7 +667,6 @@ class Encryptor:
if into is None:
# Only the tag bytes are returned when we allocate the buffer
assert w == maclen
self._bytes_out += w
self._state = None
return out if into is None else memoryview(out)[:w] # type: ignore
@@ -696,7 +678,7 @@ class Decryptor:
- final(mac) -> verifies the MAC tag
"""
__slots__ = ("_state", "_bytes_in", "_bytes_out", "_maclen")
__slots__ = ("_state", "_maclen")
def __init__(
self,
@@ -730,20 +712,8 @@ class Decryptor:
_ptr(nonce),
_ptr(key),
)
self._bytes_in = 0
self._bytes_out = 0
self._maclen = maclen
@property
def bytes_in(self) -> int:
"""Total ciphertext bytes fed to update() so far."""
return self._bytes_in
@property
def bytes_out(self) -> int:
"""Total plaintext bytes produced so far."""
return self._bytes_out
def update(self, ct: Buffer, into: Buffer | None = None) -> bytearray | memoryview:
"""Process a chunk of ciphertext.
@@ -780,8 +750,6 @@ class Decryptor:
raise RuntimeError(f"state decrypt update failed: {err_name}")
w = int(written[0])
assert w == expected_out, f"got {w}, expected {expected_out}, len(ct)={len(ct)}"
self._bytes_in += len(ct)
self._bytes_out += w
return out if into is None else memoryview(out)[:w] # type: ignore
def final(self, mac: Buffer) -> None:

36
pyaegis/aegis256x4.py
View File

@@ -554,7 +554,7 @@ class Encryptor:
- final([into]) -> returns MAC tag
"""
__slots__ = ("_state", "_bytes_in", "_bytes_out", "_maclen")
__slots__ = ("_state", "_maclen")
def __init__(
self,
@@ -588,23 +588,8 @@ class Encryptor:
_ptr(nonce),
_ptr(key),
)
self._bytes_in = 0
self._bytes_out = 0
self._maclen = maclen
@property
def bytes_in(self) -> int:
"""Total plaintext bytes fed to update() so far."""
return self._bytes_in
@property
def bytes_out(self) -> int:
"""Total ciphertext bytes produced so far.
Includes update() and final() output.
"""
return self._bytes_out
def update(
self, message: Buffer, into: Buffer | None = None
) -> bytearray | memoryview:
@@ -647,8 +632,6 @@ class Encryptor:
)
w = int(written[0])
assert w == expected_out
self._bytes_in += len(message)
self._bytes_out += w
return out if into is None else memoryview(out)[:w] # type: ignore
def final(self, into: Buffer | None = None) -> bytearray | memoryview:
@@ -684,7 +667,6 @@ class Encryptor:
if into is None:
# Only the tag bytes are returned when we allocate the buffer
assert w == maclen
self._bytes_out += w
self._state = None
return out if into is None else memoryview(out)[:w] # type: ignore
@@ -696,7 +678,7 @@ class Decryptor:
- final(mac) -> verifies the MAC tag
"""
__slots__ = ("_state", "_bytes_in", "_bytes_out", "_maclen")
__slots__ = ("_state", "_maclen")
def __init__(
self,
@@ -730,20 +712,8 @@ class Decryptor:
_ptr(nonce),
_ptr(key),
)
self._bytes_in = 0
self._bytes_out = 0
self._maclen = maclen
@property
def bytes_in(self) -> int:
"""Total ciphertext bytes fed to update() so far."""
return self._bytes_in
@property
def bytes_out(self) -> int:
"""Total plaintext bytes produced so far."""
return self._bytes_out
def update(self, ct: Buffer, into: Buffer | None = None) -> bytearray | memoryview:
"""Process a chunk of ciphertext.
@@ -780,8 +750,6 @@ class Decryptor:
raise RuntimeError(f"state decrypt update failed: {err_name}")
w = int(written[0])
assert w == expected_out, f"got {w}, expected {expected_out}, len(ct)={len(ct)}"
self._bytes_in += len(ct)
self._bytes_out += w
return out if into is None else memoryview(out)[:w] # type: ignore
def final(self, mac: Buffer) -> None:

33
tests/test_raises.py
View File

@@ -68,21 +68,6 @@ class TestEncryptorFinalization:
):
encryptor.final()
def test_properties_accessible_after_final(self):
"""Test that properties like bytes_in and bytes_out are still accessible after final()."""
key = aegis256x4.random_key()
nonce = aegis256x4.random_nonce()
encryptor = aegis256x4.Encryptor(key, nonce)
message = b"Hello, world!"
encryptor.update(message)
tag = encryptor.final()
# Properties should still be accessible
assert encryptor.bytes_in == len(message)
assert encryptor.bytes_out == len(message) + len(tag)
def test_empty_encryption_finalization(self):
"""Test that finalization works correctly with no update() calls."""
key = aegis256x4.random_key()
@@ -169,24 +154,6 @@ class TestDecryptorFinalization:
):
decryptor.final(tag)
def test_properties_accessible_after_final(self):
"""Test that properties like bytes_in and bytes_out are still accessible after final()."""
key = aegis256x4.random_key()
nonce = aegis256x4.random_nonce()
message = b"Hello, world!"
# Encrypt first
ct, tag = aegis256x4.encrypt_detached(key, nonce, message)
# Decrypt
decryptor = aegis256x4.Decryptor(key, nonce)
decryptor.update(ct)
decryptor.final(tag)
# Properties should still be accessible
assert decryptor.bytes_in == len(ct)
assert decryptor.bytes_out == len(message)
def test_empty_decryption_finalization(self):
"""Test that finalization works correctly with no update() calls."""
key = aegis256x4.random_key()