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From "Cliff Schmidt" <cliffschm...@gmail.com>
Subject Re: MD4/MD5 implementation is non-free
Date Tue, 17 Oct 2006 19:04:30 GMT

Not seeing the word "distribute" in the license, I would agree this
needs to be clarified.  There's an interesting mix of copyright terms
("copy", "derivative works"), patent terms ("use", "make"), and even
an attribution requirement that is typically associated with
distribution.  However, without a word like "distribute" (or even
"communicate"), I agree we should get some clarification on this.


On 10/16/06, Joe Orton <jorton@redhat.com> wrote:
> An argument has been made that the third-party MD4/MD5 code in APR
> (specifically, APR-util) is licensed such that it is not permissible to
> distribute modified works.
> Could we get confirmation of this interpretation?  The license header
> reads as follows:
>  * Copyright (C) 1991-2, RSA Data Security, Inc. Created 1991. All
>  * rights reserved.
>  *
>  * License to copy and use this software is granted provided that it
>  * is identified as the "RSA Data Security, Inc. MD4 Message-Digest
>  * Algorithm" in all material mentioning or referencing this software
>  * or this function.
>  *
>  * License is also granted to make and use derivative works provided
>  * that such works are identified as "derived from the RSA Data
>  * Security, Inc. MD4 Message-Digest Algorithm" in all material
>  * mentioning or referencing the derived work.
>  *
>  * RSA Data Security, Inc. makes no representations concerning either
>  * the merchantability of this software or the suitability of this
>  * software for any particular purpose. It is provided "as is"
>  * without express or implied warranty of any kind.
>  *
>  * These notices must be retained in any copies of any part of this
>  * documentation and/or software.
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