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Related Topics | Other Library Functions |
function |
blowfish.decode |
Library: Blowfish (OMBLOWFISH)
Import: omblowfish.xmd |
Return type: String Returns: A string encoding of the decrypted data |
export external string function decode (value string s, value state state) elsewhere
Use decode
to read a string
, its first argument, and decrypt it
against an encryption state, its second argument. The decrypted data
is returned as a string
that can be further processed.
The state
argument must be initialized with an encryption key; this
can be accomplished using set-encryption-key
.
The input string
must be at most eight characters long. If it is any
shorter, it is padded with null
bytes to a length of eight
characters. If it is any longer, an exception is thrown. The returned
string
is always eight characters long, and may contain null
bytes.
To use decode
, 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.)
import "omblowfish.xmd" prefixed by blowfish. define string source function f as local integer i initial { "df" base 16, "33" base 16, "3f" base 16, "d2" base 16, "30" base 16, "a7" base 16, "1b" base 16, "b4" base 16 } repeat over i output "b" % i again process local blowfish.state state initial { "TESTKEY" } local string s set s to blowfish.decode (f, state)
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Other Library Functions
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