Information about the available character code set for user name and password in Sagent

In User guide, there is no specific mention of the characters could be used in Password. 
For Sagent Login: 
Single byte characters(A – Z, a- -z) and Numeric characters (0 – 9) and symbolic characters are available. 
Double byte characters are not available.
The repository password length should not be greater than 55 characters.