Mercurial > hg > CbC > CbC_gcc
comparison gcc/ada/libgnat/g-shshco.ads @ 111:04ced10e8804
gcc 7
| author | kono |
|---|---|
| date | Fri, 27 Oct 2017 22:46:09 +0900 |
| parents | |
| children | 84e7813d76e9 |
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| 68:561a7518be6b | 111:04ced10e8804 |
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| 1 ------------------------------------------------------------------------------ | |
| 2 -- -- | |
| 3 -- GNAT LIBRARY COMPONENTS -- | |
| 4 -- -- | |
| 5 -- G N A T . S E C U R E _ H A S H E S . S H A 2 _ C O M M O N -- | |
| 6 -- -- | |
| 7 -- S p e c -- | |
| 8 -- -- | |
| 9 -- Copyright (C) 2009-2017, Free Software Foundation, Inc. -- | |
| 10 -- -- | |
| 11 -- GNAT is free software; you can redistribute it and/or modify it under -- | |
| 12 -- terms of the GNU General Public License as published by the Free Soft- -- | |
| 13 -- ware Foundation; either version 3, or (at your option) any later ver- -- | |
| 14 -- sion. GNAT is distributed in the hope that it will be useful, but WITH- -- | |
| 15 -- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY -- | |
| 16 -- or FITNESS FOR A PARTICULAR PURPOSE. -- | |
| 17 -- -- | |
| 18 -- As a special exception under Section 7 of GPL version 3, you are granted -- | |
| 19 -- additional permissions described in the GCC Runtime Library Exception, -- | |
| 20 -- version 3.1, as published by the Free Software Foundation. -- | |
| 21 -- -- | |
| 22 -- You should have received a copy of the GNU General Public License and -- | |
| 23 -- a copy of the GCC Runtime Library Exception along with this program; -- | |
| 24 -- see the files COPYING3 and COPYING.RUNTIME respectively. If not, see -- | |
| 25 -- <http://www.gnu.org/licenses/>. -- | |
| 26 -- -- | |
| 27 -- GNAT was originally developed by the GNAT team at New York University. -- | |
| 28 -- Extensive contributions were provided by Ada Core Technologies Inc. -- | |
| 29 -- -- | |
| 30 ------------------------------------------------------------------------------ | |
| 31 | |
| 32 -- This package provides supporting code for implementation of the following | |
| 33 -- secure hash functions described in FIPS PUB 180-3: SHA-224, SHA-256, | |
| 34 -- SHA-384, SHA-512. It contains the generic transform operation that is | |
| 35 -- common to the above four functions. The complete text of FIPS PUB 180-3 | |
| 36 -- can be found at: | |
| 37 -- http://csrc.nist.gov/publications/fips/fips180-3/fips180-3_final.pdf | |
| 38 | |
| 39 -- This is an internal unit and should not be used directly in applications. | |
| 40 -- Use GNAT.SHA* instead. | |
| 41 | |
| 42 package GNAT.Secure_Hashes.SHA2_Common is | |
| 43 | |
| 44 Block_Words : constant := 16; | |
| 45 -- All functions operate on blocks of 16 words | |
| 46 | |
| 47 generic | |
| 48 with package Hash_State is new Hash_Function_State (<>); | |
| 49 | |
| 50 Rounds : Natural; | |
| 51 -- Number of transformation rounds | |
| 52 | |
| 53 K : Hash_State.State; | |
| 54 -- Constants used in the transform operation | |
| 55 | |
| 56 with function Sigma0 (X : Hash_State.Word) return Hash_State.Word is <>; | |
| 57 with function Sigma1 (X : Hash_State.Word) return Hash_State.Word is <>; | |
| 58 with function S0 (X : Hash_State.Word) return Hash_State.Word is <>; | |
| 59 with function S1 (X : Hash_State.Word) return Hash_State.Word is <>; | |
| 60 -- FIPS PUB 180-3 elementary functions | |
| 61 | |
| 62 procedure Transform | |
| 63 (H_St : in out Hash_State.State; | |
| 64 M_St : in out Message_State); | |
| 65 | |
| 66 end GNAT.Secure_Hashes.SHA2_Common; |