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Locally decodable codes are error-correcting codes for which single bits of the message can be probabilistically recovered by only looking at a small (say constant) number of positions of a codeword, even after the codeword has been corrupted at some constant fraction of positions.
Secure Shell (SSH) is a protocol allowing secure remote login to a computer on a network using public-key cryptography.SSH client programs (such as ssh from OpenSSH) typically run for the duration of a remote login session and are configured to look for the user's private key in a file in the user's home directory (e.g., .ssh/id_rsa).
Mosh is similar [3] to SSH, with additional features meant to improve usability for mobile users. The major features are: The major features are: Mosh maintains its session even when it " roams " (when the client endpoint changes to different IP addresses), for example by moving to a different Wi-Fi network or when changing from Wi-Fi to 3G .
Forward secrecy is present in several protocol implementations, such as SSH and as an optional feature in IPsec (RFC 2412). Off-the-Record Messaging , a cryptography protocol and library for many instant messaging clients, as well as OMEMO which provides additional features such as multi-user functionality in such clients, both provide forward ...
The SSH developers have stated that the major impact of the attack is the capability to degrade the keystroke timing obfuscation features of SSH. [6] The designers of SSH have implemented a fix for the Terrapin attack, but the fix is only fully effective when both client and server implementations have been upgraded to support it. [1]
FTP server return codes always have three digits, and each digit has a special meaning. [1] The first digit denotes whether the response is good, bad or incomplete: Range
The on-line textbook: Information Theory, Inference, and Learning Algorithms, by David J.C. MacKay, contains chapters on elementary error-correcting codes; on the theoretical limits of error-correction; and on the latest state-of-the-art error-correcting codes, including low-density parity-check codes, turbo codes, and fountain codes.
The SSH client and key agent are enabled and available by default, and the SSH server is an optional Feature-on-Demand. [21] In October 2019 protection for private keys at rest in RAM against speculation and memory side-channel attacks were added in OpenSSH 8.1. [22]