PuTTY 0.71 Remote Networking for PC Windows

PuTTY是一套輕量級的遠端連線程式，同時支援Telnet和SSH，由於用Telnet連線時，傳輸內容是用明碼在傳輸，而ssh能將內容加密，為了避免有心人士，在網路上竊取網路封包時，我們便可以使用PuTTY，透過SSH連線到遠端主機。

• 支援IPV6。
• 支援多種連線協定，抱括Telnet、SSH、Rlogin、Raw和Serial。
• 支援多種加密協定，包括3DES、AES、RC4等。
• 可支援繁體中文顯示，並可自訂字型、顏色及大小。
• 可自訂顯示的行數、列數。
• 可自訂連線檔案，同時記錄多台預連線主機。

Security fixes found by an EU-funded bug bounty programme:
a remotely triggerable memory overwrite in RSA key exchange, which can occur before host key verification
potential recycling of random numbers used in cryptography
on Windows, hijacking by a malicious help file in the same directory as the executable
on Unix, remotely triggerable buffer overflow in any kind of server-to-client forwarding
multiple denial-of-service attacks that can be triggered by writing to the terminal
Other security enhancements: major rewrite of the crypto code to remove cache and timing side channels.
User interface changes to protect against fake authentication prompts from a malicious server.
We now provide pre-built binaries for Windows on Arm.
Hardware-accelerated versions of the most common cryptographic primitives: AES, SHA-256, SHA-1.
GTK PuTTY now supports non-X11 displays (e.g. Wayland) and high-DPI configurations.
Type-ahead now works as soon as a PuTTY window is opened: keystrokes typed before authentication has finished will be buffered instead of being dropped.
Support for GSSAPI key exchange: an alternative to the older GSSAPI authentication system which can keep your forwarded Kerberos credentials updated during a long session.
More choices of user interface for clipboard handling.
New terminal features: support the REP escape sequence (fixing an ncurses screen redraw failure), true colour, and SGR 2 dim text.
Pressing Ctrl+Shift+PgUp or Ctrl+Shift+PgDn now takes you straight to the top or bottom of the terminal scrollback.