ckolivas/lrzip
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Add manpage entry for encryption option.

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Con Kolivas 2011-03-18 23:38:02 +11:00
parent 63fb1bafea
commit 53a6dfd723
2 changed files with 13 additions and 1 deletions
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2
main.c
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@ -169,7 +169,7 @@ static void usage(void)
print_output("General options:\n"); print_output("General options:\n");
print_output(" -c check integrity of file written on decompression\n"); print_output(" -c check integrity of file written on decompression\n");
print_output(" -d decompress\n"); print_output(" -d decompress\n");
print_output(" -e password protected encryption on compression\n"); print_output(" -e password protected sha512/aes128 encryption on compression\n");
print_output(" -h|-? show help\n"); print_output(" -h|-? show help\n");
print_output(" -H display md5 hash integrity information\n"); print_output(" -H display md5 hash integrity information\n");
print_output(" -i show compressed file information\n"); print_output(" -i show compressed file information\n");

12
man/lrzip.1
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@ -34,6 +34,7 @@ Here is a summary of the options to lrzip\&.
General options: General options:
\-c check integrity of file written on decompression \-c check integrity of file written on decompression
\-d decompress \-d decompress
\-e password protected sha512/aes128 encryption on compression
\-h|\-? show help \-h|\-? show help
\-H display md5 hash integrity information \-H display md5 hash integrity information
\-i show compressed file information \-i show compressed file information
@ -93,6 +94,17 @@ Decompress. If this option is not used then lrzip looks at
the name used to launch the program. If it contains the string the name used to launch the program. If it contains the string
"lrunzip" then the \-d option is automatically set. "lrunzip" then the \-d option is automatically set.
.IP .IP
.IP "\fB-e\fP"
Encrypt. This option enables high grade password encryption using a combination
of multiply sha512 hashed password, random salt and aes128 CBC encryption.
Passwords up to 500 characters long are supported, and the encryption mechanism
used virtually guarantees that the same file created with the same password
will never be the same. Furthermore, the password hashing is increased
according to the date the file is encrypted, increasing the number of CPU
cycles required for each password attempt in accordance with Moore's law, thus
making the difficulty of attempting brute force attacks proportional to the
power of modern computers.
.IP
.IP "\fB-h|-?\fP" .IP "\fB-h|-?\fP"
Print an options summary page Print an options summary page
.IP .IP