diff options
| author | upstream source tree <ports@midipix.org> | 2015-03-15 20:14:05 -0400 |
|---|---|---|
| committer | upstream source tree <ports@midipix.org> | 2015-03-15 20:14:05 -0400 |
| commit | 554fd8c5195424bdbcabf5de30fdc183aba391bd (patch) | |
| tree | 976dc5ab7fddf506dadce60ae936f43f58787092 /gcc/ada/g-shsh32.adb | |
| download | cbb-gcc-4.6.4-554fd8c5195424bdbcabf5de30fdc183aba391bd.tar.bz2 cbb-gcc-4.6.4-554fd8c5195424bdbcabf5de30fdc183aba391bd.tar.xz | |
obtained gcc-4.6.4.tar.bz2 from upstream website;upstream
verified gcc-4.6.4.tar.bz2.sig;
imported gcc-4.6.4 source tree from verified upstream tarball.
downloading a git-generated archive based on the 'upstream' tag
should provide you with a source tree that is binary identical
to the one extracted from the above tarball.
if you have obtained the source via the command 'git clone',
however, do note that line-endings of files in your working
directory might differ from line-endings of the respective
files in the upstream repository.
Diffstat (limited to 'gcc/ada/g-shsh32.adb')
| -rw-r--r-- | gcc/ada/g-shsh32.adb | 80 |
1 files changed, 80 insertions, 0 deletions
diff --git a/gcc/ada/g-shsh32.adb b/gcc/ada/g-shsh32.adb new file mode 100644 index 000000000..c9845f14d --- /dev/null +++ b/gcc/ada/g-shsh32.adb @@ -0,0 +1,80 @@ +------------------------------------------------------------------------------ +-- -- +-- GNAT LIBRARY COMPONENTS -- +-- -- +-- G N A T . S E C U R E _ H A S H E S . S H A 2 _ 3 2 -- +-- -- +-- B o d y -- +-- -- +-- Copyright (C) 2009, Free Software Foundation, Inc. -- +-- -- +-- GNAT is free software; you can redistribute it and/or modify it under -- +-- terms of the GNU General Public License as published by the Free Soft- -- +-- ware Foundation; either version 3, or (at your option) any later ver- -- +-- sion. GNAT is distributed in the hope that it will be useful, but WITH- -- +-- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY -- +-- or FITNESS FOR A PARTICULAR PURPOSE. -- +-- -- +-- As a special exception under Section 7 of GPL version 3, you are granted -- +-- additional permissions described in the GCC Runtime Library Exception, -- +-- version 3.1, as published by the Free Software Foundation. -- +-- -- +-- You should have received a copy of the GNU General Public License and -- +-- a copy of the GCC Runtime Library Exception along with this program; -- +-- see the files COPYING3 and COPYING.RUNTIME respectively. If not, see -- +-- <http://www.gnu.org/licenses/>. -- +-- -- +-- GNAT was originally developed by the GNAT team at New York University. -- +-- Extensive contributions were provided by Ada Core Technologies Inc. -- +-- -- +------------------------------------------------------------------------------ + +package body GNAT.Secure_Hashes.SHA2_32 is + + use Interfaces; + + ------------ + -- Sigma0 -- + ------------ + + function Sigma0 (X : Word) return Word is + begin + return Rotate_Right (X, 2) + xor Rotate_Right (X, 13) + xor Rotate_Right (X, 22); + end Sigma0; + + ------------ + -- Sigma1 -- + ------------ + + function Sigma1 (X : Word) return Word is + begin + return Rotate_Right (X, 6) + xor Rotate_Right (X, 11) + xor Rotate_Right (X, 25); + end Sigma1; + + -------- + -- S0 -- + -------- + + function S0 (X : Word) return Word is + begin + return Rotate_Right (X, 7) + xor Rotate_Right (X, 18) + xor Shift_Right (X, 3); + end S0; + + -------- + -- S1 -- + -------- + + function S1 (X : Word) return Word is + begin + return Rotate_Right (X, 17) + xor Rotate_Right (X, 19) + xor Shift_Right (X, 10); + end S1; + +end GNAT.Secure_Hashes.SHA2_32; |