# signature.h

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    00001 /*
    00002   Copyright 1999-2008 ImageMagick Studio LLC, a non-profit organization
    00003   dedicated to making software imaging solutions freely available.
    00004
    00005   You may not use this file except in compliance with the License.
    00006   obtain a copy of the License at
    00007
    00008     http://www.imagemagick.org/script/license.php
    00009
    00010   Unless required by applicable law or agreed to in writing, software
    00011   distributed under the License is distributed on an "AS IS" BASIS,
    00012   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    00013   See the License for the specific language governing permissions and
    00014   limitations under the License.
    00015
    00016   MagickCore digital signature methods.
    00017 */
    00018 #ifndef _MAGICKCORE_SIGNATURE_H
    00019 #define _MAGICKCORE_SIGNATURE_H
    00020
    00021 #if defined(__cplusplus) || defined(c_plusplus)
    00022 extern "C" {
    00023 #endif
    00024
    00025 #define MagickSignatureSize  64
    00026
    00027 typedef struct _SignatureInfo
    00028 {
    00029   unsigned long
    00030     digest[8],
    00031     low_order,
    00032     high_order;
    00033
    00034   long
    00035     offset;
    00036
    00037   unsigned char
    00038     message[MagickSignatureSize];
    00039
    00040   MagickBooleanType
    00041     lsb_first;
    00042
    00043   unsigned long
    00044     signature;
    00045 } SignatureInfo;
    00046
    00047 extern MagickExport MagickBooleanType
    00048   SignatureImage(Image *);
    00049
    00050 extern MagickExport void
    00051   FinalizeSignature(SignatureInfo *),
    00052   GetSignatureInfo(SignatureInfo *),
    00053   UpdateSignature(SignatureInfo *,const unsigned char *,const size_t);
    00054
    00055 #if defined(__cplusplus) || defined(c_plusplus)
    00056 }
    00057 #endif
    00058
    00059 #endif