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With this commit, SHA1 goes through the implementation provided by OpenSSL via EVP when building the backend with it, and uses as fallback implementation KAME which was located in pgcrypto and already shaped for an integration with a set of init, update and final routines. Structures and routines have been renamed to make things consistent with the fallback implementations of MD5 and SHA2. uuid-ossp has used for ages a shortcut with pgcrypto to fetch a copy of SHA1 if needed. This was built depending on the build options within ./configure, so this cleans up some code and removes the build dependency between pgcrypto and uuid-ossp. Note that this will help with the refactoring of HMAC, as pgcrypto offers the option to use MD5, SHA1 or SHA2, so only the second option was missing to make that possible. Author: Michael Paquier Reviewed-by: Heikki Linnakangas Discussion: https://postgr.es/m/X9HXKTgrvJvYO7Oh@paquier.xyz
The PostgreSQL contrib tree
---------------------------
This subtree contains porting tools, analysis utilities, and plug-in
features that are not part of the core PostgreSQL system, mainly
because they address a limited audience or are too experimental to be
part of the main source tree. This does not preclude their
usefulness.
User documentation for each module appears in the main SGML
documentation.
When building from the source distribution, these modules are not
built automatically, unless you build the "world" target. You can
also build and install them all by running "make all" and "make
install" in this directory; or to build and install just one selected
module, do the same in that module's subdirectory.
Some directories supply new user-defined functions, operators, or
types. To make use of one of these modules, after you have installed
the code you need to register the new SQL objects in the database
system by executing a CREATE EXTENSION command. In a fresh database,
you can simply do
CREATE EXTENSION module_name;
See the PostgreSQL documentation for more information about this
procedure.