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Related Topics | Other Library Functions |
function |
blowfish.set-encryption-key |
Library: Blowfish (OMBLOWFISH)
Import: omblowfish.xmd |
export external function set-encryption-key (value string encryption-key, value state state) elsewhere
blowfish.set-encryption-key
is used to initialize a state
to the desired
encryption key. A state
's encryption key must be initialized before it
can be used in a call to decode
or encode
; otherwise an exception is
thrown.
Note that a OMBLOWFISH provides a conversion function that makes direct use of this function almost unnecessary. However, that conversion function is implemented in terms of this function.
To use blowfish.set-encryption-key
, you must import omblowfish.xmd
into your
program using a statement like this:
import "omblowfish.xmd" prefixed by blowfish.
(Please see the import topic for more on importing.)
If you wish to initialize a state
object directly, you may do so as
follows:
import "omblowfish.xmd" prefixed by blowfish. process local blowfish.state state set-encryption-key ("ENCRYPTION KEY", state)
However, you may also make use of the provided conversion function:
import "omblowfish.xmd" prefixed by blowfish. process local blowfish.state state initial { "ENCRYPTION KEY" }
There is no appreciable difference between these two examples; the choice between the two is a matter of style.
Related Topics |
Other Library Functions
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