From: Hélder M. Vieira <hmv@mail.telepac.pt>
To: pgsql-sql@postgresql.org
Subject: Re: Fwd: How to encrypt a column
Date: Thu, 11 Aug 2005 22:26:13 +0100
Message-ID: <000d01c59ebb$4d611c50$580bfea9@hmv02> (raw)
References: <20050811203922.84270.qmail@web50602.mail.yahoo.com>
>I'm interested in encrypting an column in table. Are there any example
>using "C" to create the encrypted column, inserting and retreiving data
>to/from it?
>the table is:
>CREATE TABLE mytable (
> id SERIAL PRIMARY KEY,
> crypted_content BYTEA );
>I'm getting (null) in the field with the following sql statement:
>strcpy(data, "data to be encrypted");
>sprintf(query_buff, "insert into mytable values('%s', '%s')", key,
>encrypt(data, 'foo', 'bar'));
>PQexec(conn, query_string);
>Another question is can the encrypted column be of type "text" ?
I'd check a previous critical point ... The encrypt() function output.
What is the range of characters in encrypt() output ?
Control, null or false escape characters, if not properly escaped, could be
misleading either sprintf or the query processor in pg.
Helder M. Vieira
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Subject: Re: Fwd: How to encrypt a column
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