What is the purpose of this pull request?

Fix #421

• Bug fix
• Documentation update
• New feature
• Test
• Other:

Which crates are being modified?

• floresta-chain
• floresta-cli
• floresta-common
• floresta-compact-filters
• floresta-electrum
• floresta-watch-only
• floresta-wire
• floresta
• florestad
• Other: .

Description

Added functional tests for SSL/TLS, and some other stuffs that enabled these tests:

• pyproject.toml/uv.lock: added cryptography lib to enable the creation of private keys and self-signed certificates;

• created tests/test_framework/crypto/pkcs8.py: this module generate well formatted pkcs8 private keys and self-signed certificates for our SSL-enable florestad node on regtest network;

• tests/florestad/ssl-test.py: test the creation of a SSL-enabled florestad node, a electrum client that try to connect to port 50002 and request a ping, asserting a successfully connection;

• tests/florestad/ssl-fail-test.py: test the creation of a SSL-disabled florestad node, a electrum client that try to connect to port 50002, asserting a failure on connection.

Notes to the reviewers

When running tests/florestad/ssl-test.py, it's worth to check it's log, since an strange error (in the last line) occured after request a ping to SSL-enabled node:

[2025-03-21 17:06:43 WARN florestad::florestad] Could not read config file, ignoring it
[2025-03-21 17:06:43 INFO florestad::florestad] Wallet setup completed!
[2025-03-21 17:06:43 INFO florestad::florestad] Loading blockchain database
[2025-03-21 17:06:43 INFO florestad::florestad] Loaded compact filters store at height: 0
[2025-03-21 17:06:43 INFO florestad::florestad] Starting server
[2025-03-21 17:06:43 INFO florestad::florestad] TLS server running on: 0.0.0.0:50002
[2025-03-21 17:06:43 INFO florestad::florestad] Server running on: 0.0.0.0:50001
[2025-03-21 17:06:43 INFO floresta_wire::p2p_wire::address_man] Starting peer discovery via DNS seeds
[2025-03-21 17:06:43 INFO floresta_wire::p2p_wire::address_man] Got 0 peers from 0 DNS seeds
[2025-03-21 17:06:43 ERROR floresta_wire::p2p_wire::running_node] 334:crates/floresta-wire/src/p2p_wire/running_node.rs - Io(Os { code: 2, kind: NotFound, message: "No such file or directory" })
[2025-03-21 17:06:43 INFO floresta_wire::p2p_wire::chain_selector] Starting ibd, selecting the best chain
[2025-03-21 17:06:44 INFO floresta_electrum::electrum_protocol] New client connection
[2025-03-21 17:06:44 ERROR floresta_electrum::electrum_protocol] TLS accept error: Custom { kind: InvalidData, error: CorruptMessage }

Checklist

• I've signed all my commits
• I ran just lint
• I ran cargo test
• I've checked the integration tests
• I've followed the contribution guidelines
• I'm linking the issue being fixed by this PR (if any)