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Alt-N DKIM Open Source Project
Copyright 2007 Alt-N Technologies, Ltd.

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1.0.17 October 29, 2007
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  o verifier fully supports g= value wildcard matching
  o fix to verifier not canonicalizing message headers that
    had whitespace between the header name and :
  o fix to verifier not validating t= value or comparing it
    to the x= value
  o fix to verifier accepting blank values for l= and x=

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1.0.16 August 22, 2007
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  o supports SSP (Sender Signing Practices) draft 00
  o added verifier option to save canonicalized message data

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1.0.15 May 30, 2007
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  o fix to DKIM_FAIL being returned for messages with
    invalid signatures

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1.0.14 April 24, 2007
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  o updated to final publication of DKIM (version 1)
  o fix to buffer overflow parsing malformed From headers

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1.0.13 February 22, 2007
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  o by default, verifier requires subject header to be signed
  o added visual studio 2005 project files
  o changed q=dns to q=dns/txt in signer
  o fixed hash for empty body

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1.0.12 August 31, 2006
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  o added verification option to not check the sender's policy
    (the default is to not check)

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1.0.11 July 25, 2006
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  o updated to 04 draft

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1.0.10 February 21, 2006
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  o added sha-256 hashing capability. Can sign with either
    sha-1, sha-256, or both. Either type can be verified.
    This version requires OpenSSL 0.9.8a

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1.0.9 November 22, 2005
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  o update to 01 draft

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1.0.8 July 28, 2005
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  o fix to verifier requesting policy records from the wrong
    location
  o the policy is no longer checked if the From domain is a
    subdomain of any of the successful signing domains

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1.0.7 July 21, 2005
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  o added option to honor/ignore body length tags when verifying
    default is to ignore

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1.0.6 July 14, 2005
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  o initial release


This library implements DKIM (DomainKeys Identified Mail).  The
internet drafts are available here:

http://www.ietf.org/internet-drafts/draft-allman-dkim-base-01.txt
http://www.ietf.org/internet-drafts/draft-allman-dkim-ssp-01.txt
http://www.ietf.org/internet-drafts/draft-fenton-dkim-threats-01.txt


Build Instructions
------------------

You must have OpenSSL installed and built.

http://www.openssl.org/

For Win32,
  - Edit the make file Makefile.vc and set the OpenSSL include and lib
    paths (OPENSSL_INC and OPENSSL_LIB)
  - Run "nmake /f Makefile.vc"

For Unix,
  - Run "make"


Usage
-------

See libdkimtest.cpp for an example of how to call the library.