Home | History | Annotate | Line # | Download | only in man7 
      1 =pod
      2 
      3 =head1 NAME
      4 
      5 EVP_MD-NULL - The NULL EVP_MD implementation
      6 
      7 =head1 DESCRIPTION
      8 
      9 Support for a NULL digest through the B<EVP_MD> API.
     10 This algorithm does nothing and returns 1 for its init,
     11 update and final methods.
     12 
     13 =head2 Algorithm Name
     14 
     15 The following algorithm is available in the default provider:
     16 
     17 =over 4
     18 
     19 =item "NULL"
     20 
     21 =back
     22 
     23 =head2 Gettable Parameters
     24 
     25 This implementation supports the common gettable parameters described
     26 in L<EVP_MD-common(7)>.
     27 
     28 =head1 SEE ALSO
     29 
     30 L<EVP_MD_CTX_set_params(3)>, L<provider-digest(7)>,
     31 L<OSSL_PROVIDER-default(7)>
     32 
     33 =head1 COPYRIGHT
     34 
     35 Copyright 2023 The OpenSSL Project Authors. All Rights Reserved.
     36 
     37 Licensed under the Apache License 2.0 (the "License").  You may not use
     38 this file except in compliance with the License.  You can obtain a copy
     39 in the file LICENSE in the source distribution or at
     40 L<https://www.openssl.org/source/license.html>.
     41 
     42 =cut
     43