| |
| |
| |
| |
| <!DOCTYPE html> |
| <html lang="en"> |
| <head> |
| <meta name="google-site-verification" content="_bMOCDpkx9ZAzBwb2kF3PRHbfUUdFj2uO8Jd1AXArz4" /> |
| <title>ImageMagick: MagickCore, C API for ImageMagick: Convert to and from Cipher Pixels</title> |
| <meta http-equiv="content-type" content="text/html; charset=utf-8"/> |
| <meta name="application-name" content="ImageMagick"/> |
| <meta name="description" content="ImageMagick® is a software suite to create, edit, compose, or convert bitmap images. It can read and write images in a variety of formats (over 200) including PNG, JPEG, JPEG-2000, GIF, WebP, Postscript, PDF, and SVG. Use ImageMagick to resize, flip, mirror, rotate, distort, shear and transform images, adjust image colors, apply various special effects, or draw text, lines, polygons, ellipses and Bézier curves."/> |
| <meta name="application-url" content="http://www.imagemagick.org"/> |
| <meta name="generator" content="PHP"/> |
| <meta name="keywords" content="magickcore, c, api, for, imagemagick:, convert, to, from, cipher, pixels, ImageMagick, PerlMagick, image processing, image, photo, software, Magick++, OpenMP, convert"/> |
| <meta name="rating" content="GENERAL"/> |
| <meta name="robots" content="INDEX, FOLLOW"/> |
| <meta name="generator" content="ImageMagick Studio LLC"/> |
| <meta name="author" content="ImageMagick Studio LLC"/> |
| <meta name="revisit-after" content="2 DAYS"/> |
| <meta name="resource-type" content="document"/> |
| <meta name="copyright" content="Copyright (c) 1999-2015 ImageMagick Studio LLC"/> |
| <meta name="distribution" content="Global"/> |
| <meta name="magick-serial" content="P131-S030410-R485315270133-P82224-A6668-G1245-1"/> |
| <link rel="icon" href="../images/wand.png"/> |
| <link rel="shortcut icon" href="../images/wand.ico"/> |
| <link rel="stylesheet" href="../css/magick.html"/> |
| </head> |
| <body> |
| <div class="main"> |
| <div class="magick-masthead"> |
| <div class="container"> |
| <script async="async" src="http://localhost/pagead/js/adsbygoogle.js"></script> <ins class="adsbygoogle" |
| style="display:block" |
| data-ad-client="ca-pub-3129977114552745" |
| data-ad-slot="6345125851" |
| data-ad-format="auto"></ins> |
| <script> |
| (adsbygoogle = window.adsbygoogle || []).push({}); |
| </script> |
| <nav class="magick-nav"> |
| <a class="magick-nav-item " href="../index.html">Home</a> |
| <a class="magick-nav-item " href="../binary-releases.html">Download</a> |
| <a class="magick-nav-item " href="../command-line-tools.html">Tools</a> |
| <a class="magick-nav-item " href="../command-line-processing.html">Command-line</a> |
| <a class="magick-nav-item " href="../resources.html">Resources</a> |
| <a class="magick-nav-item " href="api.html">Develop</a> |
| <a class="magick-nav-item " href="http://nextgen.imagemagick.org/script/search.php">Search</a> |
| <a class="magick-nav-item pull-right" href="https://www.imagemagick.org/discourse-server/">Community</a> |
| </nav> |
| </div> |
| </div> |
| <div class="container"> |
| <div class="magick-header"> |
| <p class="text-center"><a href="cipher.html#AcquireAESInfo">AcquireAESInfo</a> • <a href="cipher.html#DestroyAESInfo">DestroyAESInfo</a> • <a href="cipher.html#EncipherAESBlock">EncipherAESBlock</a> • <a href="cipher.html#PasskeyDecipherImage">PasskeyDecipherImage</a> • <a href="cipher.html#PasskeyEncipherImage">PasskeyEncipherImage</a> • <a href="cipher.html#SetAESKey">SetAESKey</a> • <a href="cipher.html#PasskeyDecipherImage">PasskeyDecipherImage</a> • <a href="cipher.html#PasskeyEncipherImage">PasskeyEncipherImage</a></p> |
| |
| <h2><a href="http://www.imagemagick.org/api/MagickCore/cipher_8c.html" id="AcquireAESInfo">AcquireAESInfo</a></h2> |
| |
| <p>AcquireAESInfo() allocate the AESInfo structure.</p> |
| |
| <p>The format of the AcquireAESInfo method is:</p> |
| |
| <pre class="text"> |
| AESInfo *AcquireAESInfo(void) |
| </pre> |
| |
| <h2><a href="http://www.imagemagick.org/api/MagickCore/cipher_8c.html" id="DestroyAESInfo">DestroyAESInfo</a></h2> |
| |
| <p>DestroyAESInfo() zeros memory associated with the AESInfo structure.</p> |
| |
| <p>The format of the DestroyAESInfo method is:</p> |
| |
| <pre class="text"> |
| AESInfo *DestroyAESInfo(AESInfo *aes_info) |
| </pre> |
| |
| <p>A description of each parameter follows:</p> |
| |
| <dd> |
| </dd> |
| |
| <dd> </dd> |
| <dl class="dl-horizontal"> |
| <dt>aes_info</dt> |
| <dd>the cipher context. </dd> |
| |
| <dd> </dd> |
| </dl> |
| <h2><a href="http://www.imagemagick.org/api/MagickCore/cipher_8c.html" id="EncipherAESBlock">EncipherAESBlock</a></h2> |
| |
| <p>EncipherAESBlock() enciphers a single block of plaintext to produce a block of ciphertext.</p> |
| |
| <p>The format of the EncipherAESBlock method is:</p> |
| |
| <pre class="text"> |
| void EncipherAES(AESInfo *aes_info,const unsigned char *plaintext, |
| unsigned char *ciphertext) |
| </pre> |
| |
| <p>A description of each parameter follows:</p> |
| |
| <dd> |
| </dd> |
| |
| <dd> </dd> |
| <dl class="dl-horizontal"> |
| <dt>aes_info</dt> |
| <dd>the cipher context. </dd> |
| |
| <dd> </dd> |
| <dt>plaintext</dt> |
| <dd>the plain text. </dd> |
| |
| <dd> </dd> |
| <dt>ciphertext</dt> |
| <dd>the cipher text. </dd> |
| |
| <dd> </dd> |
| </dl> |
| <h2><a href="http://www.imagemagick.org/api/MagickCore/cipher_8c.html" id="PasskeyDecipherImage">PasskeyDecipherImage</a></h2> |
| |
| <p>PasskeyDecipherImage() converts cipher pixels to plain pixels.</p> |
| |
| <p>The format of the PasskeyDecipherImage method is:</p> |
| |
| <pre class="text"> |
| MagickBooleanType PasskeyDecipherImage(Image *image, |
| const StringInfo *passkey,ExceptionInfo *exception) |
| MagickBooleanType DecipherImage(Image *image,const char *passphrase, |
| ExceptionInfo *exception) |
| </pre> |
| |
| <p>A description of each parameter follows:</p> |
| |
| <dd> |
| </dd> |
| |
| <dd> </dd> |
| <dl class="dl-horizontal"> |
| <dt>image</dt> |
| <dd>the image. </dd> |
| |
| <dd> </dd> |
| <dt>passphrase</dt> |
| <dd>decipher cipher pixels with this passphrase. </dd> |
| |
| <dd> </dd> |
| <dt>passkey</dt> |
| <dd>decrypt cipher pixels with this passkey. </dd> |
| |
| <dd> </dd> |
| <dt>exception</dt> |
| <dd>return any errors or warnings in this structure. </dd> |
| |
| <dd> </dd> |
| </dl> |
| <h2><a href="http://www.imagemagick.org/api/MagickCore/cipher_8c.html" id="PasskeyEncipherImage">PasskeyEncipherImage</a></h2> |
| |
| <p>PasskeyEncipherImage() converts pixels to cipher-pixels.</p> |
| |
| <p>The format of the PasskeyEncipherImage method is:</p> |
| |
| <pre class="text"> |
| MagickBooleanType PasskeyEncipherImage(Image *image, |
| const StringInfo *passkey,ExceptionInfo *exception) |
| MagickBooleanType EncipherImage(Image *image,const char *passphrase, |
| ExceptionInfo *exception) |
| </pre> |
| |
| <p>A description of each parameter follows:</p> |
| |
| <dd> |
| </dd> |
| |
| <dd> </dd> |
| <dl class="dl-horizontal"> |
| <dt>image</dt> |
| <dd>the image. </dd> |
| |
| <dd> </dd> |
| <dt>passphrase</dt> |
| <dd>encipher pixels with this passphrase. </dd> |
| |
| <dd> </dd> |
| <dt>passkey</dt> |
| <dd>decrypt cipher pixels with this passkey. </dd> |
| |
| <dd> </dd> |
| <dt>exception</dt> |
| <dd>return any errors or warnings in this structure. </dd> |
| |
| <dd> </dd> |
| </dl> |
| <h2><a href="http://www.imagemagick.org/api/MagickCore/cipher_8c.html" id="SetAESKey">SetAESKey</a></h2> |
| |
| <p>SetAESKey() sets the key for the AES cipher. The key length is specified in bits. Valid values are 128, 192, or 256 requiring a key buffer length in bytes of 16, 24, and 32 respectively.</p> |
| |
| <p>The format of the SetAESKey method is:</p> |
| |
| <pre class="text"> |
| SetAESKey(AESInfo *aes_info,const StringInfo *key) |
| </pre> |
| |
| <p>A description of each parameter follows:</p> |
| |
| <dd> |
| </dd> |
| |
| <dd> </dd> |
| <dl class="dl-horizontal"> |
| <dt>aes_info</dt> |
| <dd>the cipher context. </dd> |
| |
| <dd> </dd> |
| <dt>key</dt> |
| <dd>the key. </dd> |
| |
| <dd> </dd> |
| </dl> |
| <h2><a href="http://www.imagemagick.org/api/MagickCore/cipher_8c.html" id="PasskeyDecipherImage">PasskeyDecipherImage</a></h2> |
| |
| <p>PasskeyDecipherImage() converts cipher pixels to plain pixels.</p> |
| |
| <p>The format of the PasskeyDecipherImage method is:</p> |
| |
| <pre class="text"> |
| MagickBooleanType PasskeyDecipherImage(Image *image, |
| const StringInfo *passkey,ExceptionInfo *exception) |
| MagickBooleanType DecipherImage(Image *image,const char *passphrase, |
| ExceptionInfo *exception) |
| </pre> |
| |
| <p>A description of each parameter follows:</p> |
| |
| <dd> |
| </dd> |
| |
| <dd> </dd> |
| <dl class="dl-horizontal"> |
| <dt>image</dt> |
| <dd>the image. </dd> |
| |
| <dd> </dd> |
| <dt>passphrase</dt> |
| <dd>decipher cipher pixels with this passphrase. </dd> |
| |
| <dd> </dd> |
| <dt>passkey</dt> |
| <dd>decrypt cipher pixels with this passkey. </dd> |
| |
| <dd> </dd> |
| <dt>exception</dt> |
| <dd>return any errors or warnings in this structure. </dd> |
| |
| <dd> </dd> |
| </dl> |
| <h2><a href="http://www.imagemagick.org/api/MagickCore/cipher_8c.html" id="PasskeyEncipherImage">PasskeyEncipherImage</a></h2> |
| |
| <p>PasskeyEncipherImage() converts pixels to cipher-pixels.</p> |
| |
| <p>The format of the PasskeyEncipherImage method is:</p> |
| |
| <pre class="text"> |
| MagickBooleanType PasskeyEncipherImage(Image *image, |
| const StringInfo *passkey,ExceptionInfo *exception) |
| MagickBooleanType EncipherImage(Image *image,const char *passphrase, |
| ExceptionInfo *exception) |
| </pre> |
| |
| <p>A description of each parameter follows:</p> |
| |
| <dd> |
| </dd> |
| |
| <dd> </dd> |
| <dl class="dl-horizontal"> |
| <dt>passphrase</dt> |
| <dd>decipher cipher pixels with this passphrase. </dd> |
| |
| <dd> </dd> |
| <dt>passkey</dt> |
| <dd>decrypt cipher pixels with this passkey. </dd> |
| |
| <dd> </dd> |
| <dt>exception</dt> |
| <dd>return any errors or warnings in this structure. </dd> |
| |
| <dd> </dd> |
| </dl> |
| </div> |
| <footer class="magick-footer"> |
| <p><a href="../support.html">Donate</a> • |
| <a href="../sitemap.html">Sitemap</a> • |
| <a href="../links.html">Related</a> • |
| <a href="../architecture.html">Architecture</a> |
| </p> |
| <p><a href="cipher.html#">Back to top</a> • |
| <a href="http://pgp.mit.edu:11371/pks/lookup?op=get&search=0x89AB63D48277377A">Public Key</a> • |
| <a href="http://nextgen.imagemagick.org/script/contact.php">Contact Us</a></p> |
| <p><small>© 1999-2016 ImageMagick Studio LLC</small></p> |
| </footer> |
| </div><!-- /.container --> |
| |
| <script src="https://localhost/ajax/libs/jquery/1.11.3/jquery.min.js"></script> |
| <script src="http://nextgen.imagemagick.org/js/magick.html"></script> |
| </div> |
| </body> |
| </html> |