C:\>rbc\rtgen.exe random md5 loweralpha-numeric 1 7 0 2400 40000000 all
RainbowCrack 1.2 - Making a Faster Cryptanalytic Time-Memory Trade-Off
by Zhu Shuanglei <shuanglei@hotmail.com>
http://www.antsight.com/zsl/rainbowcrack/

usage: rtgen hash_algorithm \
             plain_charset plain_len_min plain_len_max \
             rainbow_table_index \
             rainbow_chain_length rainbow_chain_count \
             file_title_suffix
       rtgen hash_algorithm \
             plain_charset plain_len_min plain_len_max \
             rainbow_table_index \
             -bench

hash_algorithm:       available: lm md5 sha1
plain_charset:        use any charset name in charset.txt here
                      use "byte" to specify all 256 characters as the charset of
 the plaintext
plain_len_min:        min length of the plaintext
plain_len_max:        max length of the plaintext
rainbow_table_index:  index of the rainbow table
rainbow_chain_length: length of the rainbow chain
rainbow_chain_count:  count of the rainbow chain to generate
file_title_suffix:    the string appended to the file title
                      add your comment of the generated rainbow table here
-bench:               do some benchmark

example: rtgen lm alpha 1 7 0 100 16 test
         rtgen md5 byte 4 4 0 100 16 test
         rtgen sha1 numeric 1 10 0 100 16 test
         rtgen lm alpha 1 7 0 -bench

C:\>