Hi Everyone,
We need to change ECIES in the near future. For 5.6.3, I want to add the
deprecated attribute to warn folks about the upcoming breaking change.
Here's the message when compiling:
c++ -DNDEBUG -g3 -O2 -Wall -fPIC -march=native -DCRYPTOPP_DISABLE_ASM -pipe
-c bench2.cpp
bench2.cpp:293:3: warning: 'ECIES' is deprecated: ECIES will be changing in
the
near future due to (1) an implementation bug and (2) an interop issue.
[-Wdeprecated-declarations]
ECIES<ECP>::Encryptor cpub(cpriv);
^
The message shows when an ECIES class is instantiated; and not by including
the eccrypto.h header.
The implementation bug is: Crypto++ writes the length of the label in
bytes, not bits. The interop bug is with Bouncy Castle: the label needs to
be 8 octets and not 4 octets.
Does anyone have objections to the attribute, its verbiage/text, or other
thoughts?
Jeff
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