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Merge pull request #36 from vadimonus/master

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Adding hash_util_pkg to /extras folder
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mortenbra 2017-01-17 16:21:13 +01:00 committed by GitHub
commit 21886b0ff2
3 changed files with 1454 additions and 0 deletions
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create or replace package hash_util_pkg as
/*
Purpose:
Calculates SHA-1 and SHA-2 hashes.
Pure PL/SQL implementation. Uses decimal caclulations, works very slow.
Use DBMS_CRYPTO or external Java functions for quick hash calculation, whenever possible.
Author: Vadim Dvorovenko
Changes:
Who Date Description
------ ---------- --------------------------------
DVN 09.12.2014 Created
DVN 26.11.2016 Formatting code for Alexandria library, BLOB verison
DVN 27.11.2016 Fully rewritten process_bytes procedures.
DVN 27.11.2016 Added SHA-224, SHA-384, SHA-512, SHA-512/256, SHA-512/224
*/
subtype sha1_checksum_raw is raw(20);
subtype sha224_checksum_raw is raw(28);
subtype sha256_checksum_raw is raw(32);
subtype sha384_checksum_raw is raw(48);
subtype sha512_checksum_raw is raw(64);
-- Raw versions. Max p_buffer length - 16384 bytes
function sha1(p_buffer in raw) return sha1_checksum_raw;
function sha224(p_buffer in raw) return sha224_checksum_raw;
function sha256(p_buffer in raw) return sha256_checksum_raw;
function sha384(p_buffer in raw) return sha384_checksum_raw;
function sha512(p_buffer in raw) return sha512_checksum_raw;
function sha512_224(p_buffer in raw) return sha224_checksum_raw;
function sha512_256(p_buffer in raw) return sha256_checksum_raw;
-- Blob versions.
function sha1(p_buffer in blob) return sha1_checksum_raw;
function sha224(p_buffer in blob) return sha224_checksum_raw;
function sha256(p_buffer in blob) return sha256_checksum_raw;
function sha384(p_buffer in blob) return sha384_checksum_raw;
function sha512(p_buffer in blob) return sha512_checksum_raw;
function sha512_224(p_buffer in blob) return sha224_checksum_raw;
function sha512_256(p_buffer in blob) return sha256_checksum_raw;
procedure unittest;
end hash_util_pkg;
/

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select rawtohex(hash_pkg.sha1(utl_raw.cast_to_raw(''))) from dual;
select rawtohex(hash_pkg.sha1(utl_raw.cast_to_raw('The quick brown fox jumps over the lazy dog'))) from dual;
select rawtohex(hash_pkg.sha224(utl_raw.cast_to_raw(''))) from dual;
select rawtohex(hash_pkg.sha224(utl_raw.cast_to_raw('The quick brown fox jumps over the lazy dog'))) from dual;
select rawtohex(hash_pkg.sha256(utl_raw.cast_to_raw(''))) from dual;
select rawtohex(hash_pkg.sha256(utl_raw.cast_to_raw('The quick brown fox jumps over the lazy dog'))) from dual;
select rawtohex(hash_pkg.sha384(utl_raw.cast_to_raw(''))) from dual;
select rawtohex(hash_pkg.sha384(utl_raw.cast_to_raw('The quick brown fox jumps over the lazy dog'))) from dual;
select rawtohex(hash_pkg.sha512(utl_raw.cast_to_raw(''))) from dual;
select rawtohex(hash_pkg.sha512(utl_raw.cast_to_raw('The quick brown fox jumps over the lazy dog'))) from dual;
select rawtohex(hash_pkg.sha512_224(utl_raw.cast_to_raw(''))) from dual;
select rawtohex(hash_pkg.sha512_224(utl_raw.cast_to_raw('The quick brown fox jumps over the lazy dog'))) from dual;
select rawtohex(hash_pkg.sha512_256(utl_raw.cast_to_raw(''))) from dual;
select rawtohex(hash_pkg.sha512_256(utl_raw.cast_to_raw('The quick brown fox jumps over the lazy dog'))) from dual;