HPENC(1) HPENC(1) NAME hpenc - high performance encryption command line utility SYNOPSIS hpenc [options] < input > output hpenc [options] -r > output hpenc psk hpenc -h DESCRIPTION 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 trans- fer. Unlike openssl enc this tool supports only modern authenticated en- cryption 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 OPTIONS -a algorithm Specify algorithm to use: aes-128, aes-256 or chacha20 -d Decrypt data instead of encryption. PSK must be specified for de- cryption 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 RETURN VALUE On exit hpenc returns 0 if operation was successfull and an error code oth- erwise. EXAMPLES 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 SEE ALSO Hpenc documentation and source codes may be downloaded from <https://github.com/vstakhov/hpenc>. User Commands HPENC(1)
NAME | SYNOPSIS | DESCRIPTION | OPTIONS | RETURN VALUE | EXAMPLES | SEE ALSO
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