48 lines
1.0 KiB
Plaintext
48 lines
1.0 KiB
Plaintext
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DESCRIPTION
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Here are various cryptographic and otherwise useful
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functions for PostgreSQL.
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encode(data, type)
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encodes binary data into ASCII-only representation.
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Types supported are 'hex' and 'base64'.
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decode(data, type)
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decodes the data processed by encode()
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digest(data::text, hash_name::text)
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which returns cryptographic checksum over data by
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specified algorithm. eg
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> select encode(digest('blah', 'sha1'), 'hex');
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5bf1fd927dfb8679496a2e6cf00cbe50c1c87145
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digest_exists(hash_name::text)::bool
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which reports if particular hash type exists.
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If any of arguments are NULL they return NULL.
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HASHES
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For choosing library you must edit Makefile.
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standalone (default):
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MD5, SHA1
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(the code is from KAME project. Actually I hate code
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duplication, but I also want to quarantee that MD5 and
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SHA1 exist)
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mhash (0.8.1):
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MD5, SHA1, CRC32, CRC32B, GOST, TIGER, RIPEMD160,
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HAVAL(256,224,192,160,128)
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openssl:
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MD5, SHA1, RIPEMD160, MD2
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kerberos5 (heimdal):
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MD5, SHA1
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