Cardano Updates

Add PendingMessageByteLimit to StateMapEntry, track and enforce pending
bytes in Protocol, update StateMaps for
ChainSync/BlockFetch/TxSubmission, add tests and docs.

Signed-off-by: GitHub Copilot <[email protected]>
Signed-off-by: Chris Gianelloni <[email protected]>

Add PendingMessageByteLimit to StateMapEntry, track and enforce pending
bytes in Protocol, update StateMaps for
ChainSync/BlockFetch/TxSubmission, add tests and docs.

Signed-off-by: GitHub Copilot <[email protected]>
Signed-off-by: Chris Gianelloni <[email protected]>

Implement protocol limits: ChainSync (100), BlockFetch (512), TxSubmission (65535)
with validation and connection termination on violations.

Signed-off-by: GitHub Copilot <[email protected]>
Signed-off-by: Chris Gianelloni <[email protected]>
Co-authored-by: GitHub Copilot <[email protected]>

Add test coverage for all handshake refusal modes:
- RefuseReasonVersionMismatch for both NtC and NtN
- RefuseReasonDecodeError for both NtC and NtN
- RefuseReasonRefused for both NtC and NtN

Include edge cases for empty messages, multiple versions,
and single version scenarios.

Signed-off-by: Chris Gianelloni <[email protected]>

Implement protocol limits: ChainSync (100), BlockFetch (512), TxSubmission (65535)
with validation and connection termination on violations.

Signed-off-by: GitHub Copilot <[email protected]>
Signed-off-by: Chris Gianelloni <[email protected]>

Implement protocol limits: ChainSync (100), BlockFetch (512), TxSubmission (65535)
with validation and connection termination on violations.

Signed-off-by: GitHub Copilot <[email protected]>
Signed-off-by: Chris Gianelloni <[email protected]>

Implement protocol limits: ChainSync (100), BlockFetch (512), TxSubmission (65535)
with validation and connection termination on violations.

Signed-off-by: GitHub Copilot <[email protected]>
Signed-off-by: Chris Gianelloni <[email protected]>

Signed-off-by: Ales Verbic <[email protected]>

Add test coverage for all handshake refusal modes:
- RefuseReasonVersionMismatch for both NtC and NtN
- RefuseReasonDecodeError for both NtC and NtN
- RefuseReasonRefused for both NtC and NtN

Include edge cases for empty messages, multiple versions,
and single version scenarios.

Signed-off-by: Chris Gianelloni <[email protected]>

Previously, when Blake2b256, Blake2b224, or Blake2b160 hash fields had zero values
(all bytes are 0), the CBOR encoding would output `null` instead of a proper
zero-filled bytestring of the correct size.

This commit adds MarshalCBOR() methods to all Blake2b hash types to ensure they
always encode as proper bytestrings, even when zero-valued:

- Blake2b256: encodes as 32-byte bytestring (0x5820 + 32 zero bytes)
- Blake2b224: encodes as 28-byte bytestring (0x581C + 28 zero bytes)
- Blake2b160: encodes as 20-byte bytestring (0x54 + 20 zero bytes)

Also adds MarshalJSON() methods for consistency across all Blake2b types.

The fix ensures genesis blocks and other scenarios with empty prev hashes
properly encode as `h'0000...0000'` instead of `null` in CBOR output.

Includes comprehensive unit tests to verify the fix and prevent regressions.

Signed-off-by: GitHub Copilot <[email protected]>
Signed-off-by: Chris Gianelloni <[email protected]>

Add custom CBOR encoding/decoding for ScriptsNotPaidUtxo that matches
the Haskell cardano-ledger specification. The implementation uses
`[constructor_index, utxo_map]` format with multi-strategy decoding
to handle complex CBOR map structures.

- Add `MarshalCBOR` converting slice to map format
- Add `UnmarshalCBOR` with fallback decoding strategies
- Add comprehensive test with mock interfaces
- Maintain compatibility with existing error handling

Signed-off-by: Chris Gianelloni <[email protected]>
Co-authored-by: GitHub Copilot <[email protected]>

Previously, when Blake2b256, Blake2b224, or Blake2b160 hash fields had zero values
(all bytes are 0), the CBOR encoding would output `null` instead of a proper
zero-filled bytestring of the correct size.

This commit adds MarshalCBOR() methods to all Blake2b hash types to ensure they
always encode as proper bytestrings, even when zero-valued:

- Blake2b256: encodes as 32-byte bytestring (0x5820 + 32 zero bytes)
- Blake2b224: encodes as 28-byte bytestring (0x581C + 28 zero bytes)
- Blake2b160: encodes as 20-byte bytestring (0x54 + 20 zero bytes)

Also adds MarshalJSON() methods for consistency across all Blake2b types.

The fix ensures genesis blocks and other scenarios with empty prev hashes
properly encode as `h'0000...0000'` instead of `null` in CBOR output.

Includes comprehensive unit tests to verify the fix and prevent regressions.

Signed-off-by: GitHub Copilot <[email protected]>
Signed-off-by: Chris Gianelloni <[email protected]>

Add custom CBOR encoding/decoding for ScriptsNotPaidUtxo that matches
the Haskell cardano-ledger specification. The implementation uses
`[constructor_index, utxo_map]` format with multi-strategy decoding
to handle complex CBOR map structures.

- Add `MarshalCBOR` converting slice to map format
- Add `UnmarshalCBOR` with fallback decoding strategies
- Add comprehensive test with mock interfaces
- Maintain compatibility with existing error handling

Signed-off-by: Chris Gianelloni <[email protected]>
Co-authored-by: GitHub Copilot <[email protected]>

Previously, when Blake2b256, Blake2b224, or Blake2b160 hash fields had zero values
(all bytes are 0), the CBOR encoding would output `null` instead of a proper
zero-filled bytestring of the correct size.

This commit adds MarshalCBOR() methods to all Blake2b hash types to ensure they
always encode as proper bytestrings, even when zero-valued:

- Blake2b256: encodes as 32-byte bytestring (0x5820 + 32 zero bytes)
- Blake2b224: encodes as 28-byte bytestring (0x581C + 28 zero bytes)
- Blake2b160: encodes as 20-byte bytestring (0x54 + 20 zero bytes)

Also adds MarshalJSON() methods for consistency across all Blake2b types.

The fix ensures genesis blocks and other scenarios with empty prev hashes
properly encode as `h'0000...0000'` instead of `null` in CBOR output.

Includes comprehensive unit tests to verify the fix and prevent regressions.

Signed-off-by: GitHub Copilot <[email protected]>
Signed-off-by: Chris Gianelloni <[email protected]>

Add custom CBOR encoding/decoding for ScriptsNotPaidUtxo that matches
the Haskell cardano-ledger specification. The implementation uses
`[constructor_index, utxo_map]` format with multi-strategy decoding
to handle complex CBOR map structures.

- Add `MarshalCBOR` converting slice to map format
- Add `UnmarshalCBOR` with fallback decoding strategies
- Add comprehensive test with mock interfaces
- Maintain compatibility with existing error handling

Signed-off-by: Chris Gianelloni <[email protected]>
Co-authored-by: GitHub Copilot <[email protected]>

Signed-off-by: Akhil Repala <[email protected]>

Signed-off-by: Ales Verbic <[email protected]>

Add custom CBOR encoding/decoding for ScriptsNotPaidUtxo that matches
the Haskell cardano-ledger specification. The implementation uses
`[constructor_index, utxo_map]` format with multi-strategy decoding
to handle complex CBOR map structures.

- Add `MarshalCBOR` converting slice to map format
- Add `UnmarshalCBOR` with fallback decoding strategies
- Add comprehensive test with mock interfaces
- Maintain compatibility with existing error handling

Signed-off-by: Chris Gianelloni <[email protected]>
Co-authored-by: GitHub Copilot <[email protected]>

Add custom CBOR encoding/decoding for ScriptsNotPaidUtxo that matches
the Haskell cardano-ledger specification. The implementation uses
`[constructor_index, utxo_map]` format with multi-strategy decoding
to handle complex CBOR map structures.

- Add `MarshalCBOR` converting slice to map format
- Add `UnmarshalCBOR` with fallback decoding strategies
- Add comprehensive test with mock interfaces
- Maintain compatibility with existing error handling

Signed-off-by: Chris Gianelloni <[email protected]>
Co-authored-by: GitHub Copilot <[email protected]>

Add custom CBOR encoding/decoding for ScriptsNotPaidUtxo that matches
the Haskell cardano-ledger specification. The implementation uses
`[constructor_index, utxo_map]` format with multi-strategy decoding
to handle complex CBOR map structures.

- Add `MarshalCBOR` converting slice to map format
- Add `UnmarshalCBOR` with fallback decoding strategies
- Add comprehensive test with mock interfaces
- Maintain compatibility with existing error handling

Signed-off-by: Chris Gianelloni <[email protected]>
Co-authored-by: GitHub Copilot <[email protected]>

Signed-off-by: Chris Gianelloni <[email protected]>

Signed-off-by: Chris Gianelloni <[email protected]>

Add custom CBOR encoding/decoding for ScriptsNotPaidUtxo that matches
the Haskell cardano-ledger specification. The implementation uses
`[constructor_index, utxo_map]` format with multi-strategy decoding
to handle complex CBOR map structures.

- Add `MarshalCBOR` converting slice to map format
- Add `UnmarshalCBOR` with fallback decoding strategies
- Add comprehensive test with mock interfaces
- Maintain compatibility with existing error handling

Signed-off-by: Chris Gianelloni <[email protected]>
Co-authored-by: GitHub Copilot <[email protected]>

Previously, when Blake2b256, Blake2b224, or Blake2b160 hash fields had zero values
(all bytes are 0), the CBOR encoding would output `null` instead of a proper
zero-filled bytestring of the correct size.

This commit adds MarshalCBOR() methods to all Blake2b hash types to ensure they
always encode as proper bytestrings, even when zero-valued:

- Blake2b256: encodes as 32-byte bytestring (0x5820 + 32 zero bytes)
- Blake2b224: encodes as 28-byte bytestring (0x581C + 28 zero bytes)
- Blake2b160: encodes as 20-byte bytestring (0x54 + 20 zero bytes)

Also adds MarshalJSON() methods for consistency across all Blake2b types.

The fix ensures genesis blocks and other scenarios with empty prev hashes
properly encode as `h'0000...0000'` instead of `null` in CBOR output.

Includes comprehensive unit tests to verify the fix and prevent regressions.

Signed-off-by: GitHub Copilot <[email protected]>
Signed-off-by: Chris Gianelloni <[email protected]>

Signed-off-by: Chris Gianelloni <[email protected]>