This is Encrypted MAC (EMAC), formerly known as Double MAC (DMAC).
Unlike HMAC, which reuses an existing one-way hash function, such as
MD5, SHA-1 or RIPEMD-160, EMAC reuses an existing block cipher to
produce a secure message authentication code (MAC).
Using the block cipher, a message is encrypted in CBC mode. The last
block is taken as the MAC of the message. For fixed-length messages,
this method is provably secure. In reality, however, messages have
arbitrary lengths, and this method is not secure. To make secure MACs
for variable length messages, the last block is encrypted once again
with a different key. The security of this construction has been proved
in the paper, ``CBC MAC for Real-Time Data Sources'' by Erez Petrank
and Charles Rackoff. The security can be proved on the assumption that
the underlying block cipher is pseudo-random.
The performance and key-agility of EMAC are reasonable. EMAC is
preferable for short messages because the block length is smaller
compared to the schemes based on a hash function. EMAC is also chosen
as one of the NESSIE winners for Message Authentication Codes, along
with UMAC, TTMAC and HMAC. The current NESSIE specification chooses the
AES as block cipher.
Remove WWW entries moved into port Makefiles
Commit b7f05445c00f has added WWW entries to port Makefiles based on
WWW: lines in pkg-descr files.
This commit removes the WWW: lines of moved-over URLs from these
pkg-descr files.
Approved by: portmgr (tcberner)
Add WWW entries to port Makefiles
It has been common practice to have one or more URLs at the end of the
ports' pkg-descr files, one per line and prefixed with "WWW:". These
URLs should point at a project website or other relevant resources.
Access to these URLs required processing of the pkg-descr files, and
they have often become stale over time. If more than one such URL was
present in a pkg-descr file, only the first one was tarnsfered into
the port INDEX, but for many ports only the last line did contain the
port specific URL to further information.
There have been several proposals to make a project URL available as
a macro in the ports' Makefiles, over time.
(Only the first 15 lines of the commit message are shown above )
security: remove 'Created by' lines
A big Thank You to the original contributors of these ports:
* <ports@c0decafe.net>
* Aaron Dalton <aaron@FreeBSD.org>
* Adam Weinberger <adamw@FreeBSD.org>
* Ade Lovett <ade@FreeBSD.org>
* Aldis Berjoza <aldis@bsdroot.lv>
* Alex Dupre <ale@FreeBSD.org>
* Alex Kapranoff <kappa@rambler-co.ru>
* Alex Samorukov <samm@freebsd.org>
* Alexander Botero-Lowry <alex@foxybanana.com>
* Alexander Kriventsov <avk@vl.ru>
* Alexander Leidinger <netchild@FreeBSD.org>
(Only the first 15 lines of the commit message are shown above )
Fix every instance of RUN_DEPENDS:=${BUILD_DEPENDS} in p5 ports, except
for where it resulted in a change in output from build-depends-list or
run-depends-list.
Approved by: portmgr (adamw)
Change the way Perl modules are installed, update the default Perl to 5.18.
Before, we had:
site_perl : lib/perl5/site_perl/5.18
site_perl/perl_arch : lib/perl5/site_perl/5.18/mach
perl_man3 : lib/perl5/5.18/man/man3
Now we have:
site_perl : lib/perl5/site_perl
site_arch : lib/perl5/site_perl/mach/5.18
perl_man3 : lib/perl5/site_perl/man/man3
Modules without any .so will be installed at the same place regardless of the
(Only the first 15 lines of the commit message are shown above )
At the moment 1385 ports use BUILD_DEPENDS= ${RUN_DEPENDS} and 450
ports use BUILD_DEPENDS:= ${RUN_DEPENDS}. This patch fixes ports that are
currently broken. This is a temporary measure until we organically stop using
:= or someone(s) spend a lot of time changing all the ports over.
Explicit duplication > := > = and this just moves ports one step to the left
Approved by: portmgr
- Take advantage of CPAN macro from bsd.sites.mk, change
${MASTER_SITE_PERL_CPAN} to CPAN.
PR: ports/122674
Submitted by: Philip M. Gollucci <pgollucci@p6m7g8.com>
Reworked by: araujo (myself)
Approved by: portmgr (pav)
Update search.cpan.org WWW: entries to have a trailing slash.
Change some URLs from author dirs to dist dirs.
The example in the porter's handbook didn't have the trailing slash;
mea culpa for not having caught that when it went in.
This is Encrypted MAC (EMAC), formerly known as Double MAC (DMAC).
Unlike HMAC, which reuses an existing one-way hash function, such as
MD5, SHA-1 or RIPEMD-160, EMAC reuses an existing block cipher to
produce a secure message authentication code (MAC).
WWW: http://search.cpan.org/dist/Digest-EMAC
PR: ports/90560
Submitted by: Gabor Kovesdan
