[Bug #978556] Update SHA spec URL; bugfix candidate

Doc/lib/libsha.tex

@@ -67,17 +67,15 @@ substring.
 \end{methoddesc}
 
 \begin{seealso}
-  \seetitle[http://csrc.nist.gov/publications/fips/fips180-1/fip180-1.txt]
+  \seetitle[http://csrc.nist.gov/publications/fips/fips180-2/fips180-2withchangenotice.pdf]
     {Secure Hash Standard}
     {The Secure Hash Algorithm is defined by NIST document FIPS
-     PUB 180-1:
-     \citetitle[http://csrc.nist.gov/publications/fips/fips180-1/fip180-1.txt]
-        {Secure Hash Standard}, published in April of 1995.  It is
-     available online as plain text (at least one diagram was
-     omitted) and as PDF at
-     \url{http://csrc.nist.gov/publications/fips/fips180-1/fip180-1.pdf}.}
+     PUB 180-2:
+     \citetitle[http://csrc.nist.gov/publications/fips/fips180-2/fips180-2withchangenotice.pdf]
+        {Secure Hash Standard}, published in August 2002.}
 
   \seetitle[http://csrc.nist.gov/encryption/tkhash.html]
            {Cryptographic Toolkit (Secure Hashing)}
            {Links from NIST to various information on secure hashing.}
 \end{seealso}
+