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Document the modifications in 0.9.7 that will make the hw_ncipher.c

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engine work properly even in bad situations.
This commit is contained in:
Richard Levitte 2002-12-12 17:40:15 +00:00
parent e5a08ce44d
commit 14676ffcd6
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@ -352,6 +352,20 @@ TODO: bug: pad x with leading zeros if necessary
Changes between 0.9.6h and 0.9.7 [XX xxx 2002]
*) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
seems that in spite of existing for more than a year, no application
author has done anything to provide the necessary callbacks, which
means that this particular engine will not work properly anywhere.
This is a very unfortunate situation which forces us, in the name
of usability, to give the hw_ncipher.c a static lock, which is part
of libcrypto.
NOTE: This is for the 0.9.7 series ONLY. This hack will never
appear in 0.9.8 or later. We EXPECT application authors to have
dealt properly with this when 0.9.8 is released (unless we actually
make such changes in the libcrypto locking code that changes will
have to be made anyway).
[Richard Levitte]
*) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
octets have been read, EOF or an error occurs. Without this change
some truncated ASN1 structures will not produce an error.