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HMAC is used for message integrity checks between two parties that
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share a secret key, and works in combination with some other Digest
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algorithm, usually MD5 or SHA-1. The HMAC mechanism is described in
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RFC 2104.
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The Digest::HMAC module follow the common Digest:: interface, but the
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constructor takes the secret key and the name of some other simple
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Digest:: module as argument.
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You will need perl version 5.004 or better to install these modules.
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The Digest::MD5 module and Digest::SHA1 module must be installed.
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Copyright 1998-2001 Gisle Aas.
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Copyright 1998 Graham Barr.
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This library is free software; you can redistribute it and/or
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modify it under the same terms as Perl itself.
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