various fixes;

src/lib/libutil/pkcs5_pbkdf2.3

@@ -1,4 +1,4 @@
-.\"	$OpenBSD: pkcs5_pbkdf2.3,v 1.2 2012/09/06 19:48:12 tedu Exp $
+.\"	$OpenBSD: pkcs5_pbkdf2.3,v 1.3 2012/09/07 05:48:20 jmc Exp $
 .\"
 .\" Copyright (c) 2012 Ted Unangst <tedu@openbsd.org>
 .\"
@@ -14,12 +14,12 @@
 .\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 .\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 .\"
-.Dd $Mdocdate: September 6 2012 $
-.Dt pkcs5_pbkdf2 3
+.Dd $Mdocdate: September 7 2012 $
+.Dt PKCS5_PBKDF2 3
 .Os
 .Sh NAME
 .Nm pkcs5_pbkdf2
-.Nd password based key derivation function
+.Nd password-based key derivation function
 .Sh SYNOPSIS
 .Fd #include <util.h>
 .Ft int
@@ -29,7 +29,7 @@
 The
 .Nm
 function converts a password into a byte array suitable for use as
-encryption key.
+an encryption key.
 The password and salt values are combined and repeatedly hashed
 .Ar rounds
 times.
@@ -37,7 +37,7 @@ The salt value should be randomly generated beforehand.
 The repeated hashing is designed to thwart discovery of the key via
 password guessing attacks.
 The higher the number of rounds, the slower each attempt will be.
-A minumum value of at least 1000 is recommended.
+A minimum value of at least 1000 is recommended.
 .Sh RETURN VALUES
 The
 .Fn pkcs5_pbkdf2
@@ -47,7 +47,12 @@ function returns 0 to indicate success and -1 for failure.
 .Sh SEE ALSO
 .Xr sha1 1
 .Sh STANDARDS
-RFC 2898
+.Rs
+.%A B. Kaliski
+.%D September 2000
+.%R RFC 2898
+.%T PKCS #5: Password-Based Cryptography Specification Version 2.0
+.Re
 .\" .Sh HISTORY
 .\" .Sh AUTHORS
 .Sh CAVEATS