# help

**Dekun Zou
**
dz6@mailhost.njit.edu

*Thu Nov 21 00:00:03 2002*

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Dear Sir/Madam,
I have 2 question about the Digital Signature Algorithm:
1. Since the signature is the pair of 'r' and 's', how long is the
signature? Is that true that r is 160 bits
long and 's' is 160 bits long? So the final length is 320 bits.
2. I want to get only the 'r' and 's' from a sig file. Can you tell me =
the
structure of a sig file?
Thanks a lot!
Dekun Zou
ECE Dept.
New Jersey Institute of Technology
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<DIV><FONT face=3DArial size=3D2><FONT size=3D3>Dear Sir/Madam,<BR><BR>I =
have 2=20
question about the Digital Signature Algorithm:<BR>1. Since the =
signature is the=20
pair of 'r' and 's', how long is the<BR>signature? Is that true that r =
is 160=20
bits<BR>long and 's' is 160 bits long? So the final length is 320=20
bits.<BR><BR>2. I want to get only the 'r' and 's' from a sig file. Can =
you tell=20
me the<BR>structure of a sig file?<BR><BR>Thanks a lot!<BR><BR>Dekun =
Zou<BR>ECE=20
Dept.<BR>New Jersey Institute of=20
Technology</FONT><BR></FONT></DIV></BODY></HTML>
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