GSP
Quick Navigator

Search Site

Unix VPS
A - Starter
B - Basic
C - Preferred
D - Commercial
MPS - Dedicated
Previous VPSs
* Sign Up! *

Support
Contact Us
Online Help
Handbooks
Domain Status
Man Pages

FAQ
Virtual Servers
Pricing
Billing
Technical

Network
Facilities
Connectivity
Topology Map

Miscellaneous
Server Agreement
Year 2038
Credits
 

USA Flag

 

 

Man Pages
HPENC(1) HPENC(1)

hpenc - high performance encryption command line utility

hpenc [ options] < input > output
hpenc [ options] -r > output
hpenc psk
hpenc -h

hpenc provides command line API for authenticated encryption algorithms, in particular AES-[128|256]-GCM and ChaCha20-Poly1305. This tool is intended to perform bulk encryption with authentication tags for further data transfer. Unlike openssl enc this tool supports only modern authenticated encryption ciphers providing both secrecy and integrity of input data.
hpenc utility reads input data from standard input and outputs encrypted (or decrypted data) to standard output.
To generate PSK one can use the following syntax:
hpenc psk
    
For pseudo-random generator the following invocation could be used:
hpenc -r
    

-a algorithm
Specify algorithm to use: aes-128, aes-256 or chacha20
-d
Decrypt data instead of encryption. PSK must be specified for decryption in a command line
-r
Run in pseudo-random generator mode with no input needed
-b block_size
Use the specified block size instead of the default one (4KB). Use 'k' for kilobytes, 'm' for megabytes. Maximum block size is 16MB
-c count
Stop after processing count of blocks. Use 'k' for kiloblocks, 'm' for megablocks and 'g' for gigablocks
-k key
Use the specified key for encryption/decryption. Key is required for decryption and optional for encryption. The size of PSK is 52 base32 encoded symbols.
-B
Encode output or input to base64

On exit hpenc returns 0 if operation was successfull and an error code otherwise.

Generate PSK:
hpenc psk
    
Encrypt data:
echo 'data' | hpenc -k 8jc38bntqehs31f3q8j4du4ry88k34ugh6eux6aoggpkbywgok9y > encrypted
    
Decrypt data:
hpenc -k 8jc38bntqehs31f3q8j4du4ry88k34ugh6eux6aoggpkbywgok9y -d < encrypted
    
Run as random number generator:
hpenc -r -b 1M -c 10 > random
    
Securely reset all data on your hard drive:
hpenc -r -b 1M > /dev/hda
    
Move data over the network:
bar -b 16M -s 102400M /dev/vg0/lvol1 | ./hpenc -b 16M -k 8jc38bntqehs31f3q8j4du4ry88k34ugh6eux6aoggpkbywgok9y | nc target 1234
nc -l 1234 | ./hpenc -d -k 8jc38bntqehs31f3q8j4du4ry88k34ugh6eux6aoggpkbywgok9y > /dev/vg0/lvol
    

Hpenc documentation and source codes may be downloaded from <https://github.com/vstakhov/hpenc>.
User Commands

Search for    or go to Top of page |  Section 1 |  Main Index

Powered by GSP Visit the GSP FreeBSD Man Page Interface.
Output converted with ManDoc.