| SYD-AES(1) | General Commands Manual | SYD-AES(1) |
NAME
syd-aes - AES-CTR encryption and decryption utility
SYNOPSIS
syd-aes [-hv] -e|-d -k <key-hex> -i <iv-hex> -t <tag-str>
DESCRIPTION
The syd-aes utility uses the Linux Kernel Cryptography API to encrypt and decrypt data using AES-CTR mode. It supports both encryption and decryption operations, with the key and IV provided as hexadecimal strings. Given data from standard input, syd-aes performs the specified operation and outputs the result to standard output. syd-aes uses pipes and splice(2) to transfer data using zero-copy, and therefore able to encrypt/decrypt files of arbitrary size.
OPTIONS
| -h | Display help. |
| -v | Enable verbose mode. If standard error is a terminal, print progress updates periodically, similar to dd(1). |
| -e | Encrypt the input data. |
| -d | Decrypt the input data. |
| -k <key> | Hex-encoded key (256 bits). |
| -i <iv> | Hex-encoded IV (128 bits). |
| -t <tag> | Information tag for HKDF (optional, max is 255 x 32 = 8160 bytes). |
SEE ALSO
syd(1), syd(2), syd(5), splice(2), syd-key(1)
syd homepage: https://sydbox.exherbolinux.org/
AUTHORS
Maintained by Ali Polatel. Up-to-date sources can be found at https://gitlab.exherbo.org/sydbox/sydbox.git and bugs/patches can be submitted to https://gitlab.exherbo.org/groups/sydbox/-/issues. Discuss in #sydbox on Libera Chat.
| 2025-02-14 |