Crypt-OpenSSL-EC

This is Crypt::OpenSSL::EC, an XS-wrapper around the OpenSSL EC (Elliptic Curves) library.

INSTALLATION

To compile and install this module type the following:

perl Makefile.PL
make
make test
make install

The compilation requires library named libcrypto and the respective C language include files. Before Makefile.PL calls WriteMakefile function, it automatically uses the following environment variables and utilities to set the initial value for the function's LIBS and INC attributes. The following variables and utilities are used in the order they are listed:

• Environment variable OPENSSL_PREFIX
• A pair of environment variables OPENSSL_LIB and OPENSSL_INCLUDE
• pkg-config utility
• Only on Windows: LIBS is set to -llibeay32 or -leay32 depending on the compiler.

The initial values may be updated to ensure the system defaults do not override the automatically set values.

Environment variable examples

Environment variables also work on Windows systems.

Point to a directory with subdirectories named lib and include to set LIBS and INC. Library -lcrypto is always appended to LIBS.

OPENSSL_PREFIX=$HOME/opt/openssl-3.6.0 perl Makefile.PL
make
make test
make install

Libraries and includes are not in a common subdirectory. LIBS and INC are set with separate variables. Note that OPENSSL_LIB needs both the path and library name in this case.

OPENSSL_LIB="$HOME/opt/openssl/lib/3.6.0 -lcrypto" OPENSSL_INCLUDE=$HOME/opt/openssl/include/3.6.0 perl Makefile.PL
make
make test
make install

DEPENDENCIES

This module requires these other modules and libraries:

• Crypt::OpenSSL::Bignum 0.04 or later
• OpenSSL 0.9.8i or later headers and libraries for compilation

To build you will also need (but may already be installed on your OS):

• make
• gcc
• ExtUtils::MakeMaker
• Test::Simple

COPYRIGHT AND LICENCE

Copyright (C) 2012 by Mike McCauley
Copyright (C) 2026 by Heikki Vatiainen

This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself, either Perl version 5.14.2 or, at your option, any later version of Perl 5 you may have available.

Terms of Perl version 5.14.2 are:

a) the GNU General Public License as published by the Free Software Foundation; either version 1, or (at your option) any later version, or

b) the "Artistic License"