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Authenticated Encryption (AE) is an encryption scheme which simultaneously assures the data confidentiality (also known as privacy: the encrypted message is impossible to understand without the knowledge of a secret key [1]) and authenticity (in other words, it is unforgeable: [2] the encrypted message includes an authentication tag that the sender can calculate only while possessing the ...
ChaCha20-Poly1305 is an authenticated encryption with associated data (AEAD) algorithm, that combines the ChaCha20 stream cipher with the Poly1305 message authentication code. [1] It has fast software performance, and without hardware acceleration, is usually faster than AES-GCM. [1]: §B
The OpenSSL PRNG was removed (and replaced with ChaCha20-based implementation of arc4random). Preprocessor macros that have been deemed unnecessary or insecure or had already been deprecated in OpenSSL for a long time (e.g. des_old.h). Older unneeded files for assembly language, C, and Perl (e.g. EGD). MD2, SEED functionality. SSL 3.0, SHA-0 ...
OpenSSL is a software library for applications that provide secure communications over computer networks against eavesdropping, and identify the party at the other end. It is widely used by Internet servers, including the majority of HTTPS websites. OpenSSL contains an open-source implementation of the SSL and TLS protocols.
OpenSSL: libc zlib (compression) brotli (compression) zstd (compression) wolfSSL: None libc zlib (compression) Erlang/OTP SSL application libcrypto (from OpenSSL), Erlang/OTP and its public_key, crypto and asn1 applications Erlang/OTP -inets (http fetching of CRLs) Implementation Dependencies Optional dependencies
On a Linux system, the boot partition (/boot) may be encrypted if the bootloader itself supports LUKS (e.g. GRUB). This is undertaken to prevent tampering with the Linux kernel . However, the first stage bootloader or an EFI system partition cannot be encrypted (see Full disk encryption#The boot key problem ).
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This is a list of commands from the GNU Core Utilities for Unix environments. These commands can be found on Unix operating systems and most Unix-like operating systems. GNU Core Utilities include basic file, shell and text manipulation utilities. Coreutils includes all of the basic command-line tools that are expected in a POSIX system.