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Date: Thu, 16 Jun 2016 13:36:05 +0000 (UTC)
From: "Sebb (JIRA)" <jira@apache.org>
To: issues@commons.apache.org
Message-ID: <JIRA.12979645.1466045382000.6376.1466084165350@Atlassian.JIRA>
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References: <JIRA.12979645.1466045382000@Atlassian.JIRA> <JIRA.12979645.1466045382134@arcas>
Subject: [jira] [Updated] (CRYPTO-77) Hide Stream's Ctor with cipher
 parameter
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archived-at: Thu, 16 Jun 2016 13:36:07 -0000


     [ https://issues.apache.org/jira/browse/CRYPTO-77?page=3Dcom.atlassian=
.jira.plugin.system.issuetabpanels:all-tabpanel ]

Sebb updated CRYPTO-77:
-----------------------
    Summary: Hide Stream's Ctor with cipher parameter  (was: Hide Steam's C=
tor with cipher parameter)

> Hide Stream's Ctor with cipher parameter
> ----------------------------------------
>
>                 Key: CRYPTO-77
>                 URL: https://issues.apache.org/jira/browse/CRYPTO-77
>             Project: Commons Crypto
>          Issue Type: Bug
>            Reporter: Xianda Ke
>            Assignee: Xianda Ke
>
> Stream has such two Ctor:
> {code}
> // denoted as (a)
> public CryptoInputStream(InputStream in, CryptoCipher cipher,
>             int bufferSize, Key key, AlgorithmParameterSpec params)
> // denoted as (b)
> public CryptoInputStream(CipherTransformation transformation,
>             Properties props, InputStream in, Key key,
>             AlgorithmParameterSpec params)
> {code}
> if use Ctor (b), client user don't have to construct a cipher.  make sens=
e.=20
> But, in Ctor (a), the cipher argument is create outside Ctor, then it is =
initialized in CryptoInputStream's Ctor. The cipher=E2=80=99s construction =
is scattered. It is a bit confusing.
> Ctor (a) seem only used internally.  It would be better to hide Ctor (a) =
for user.
> In future, we can consider this:
> {code}
> // don't pass key and iv param, the cipher should be initialized outside
> // similar to JDK, and more scalable to support GCM, CCM modes.
> CryptoInputStream(InputStream in, CryptoCipher cipher,  int bufferSize)
> {code}
> right now, we just hide Ctor (a) for user.


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