"Java Cryptography" XML signature

Http://www.oracle.com/technetwork/articles/javase/dig-signature-api-140772.html

The structure and type of XML signatures are basically three types of XML signatures:

• Sealed internal signature enveloped

• Outer seal Signature Enveloping

• Detach Signature Detached

In-sealed signature: This signature is a child of the XML object, that is, the child label of the XML file in the message

<RootElement>    <Signature>    ...    </Signature></RootElement>

Out-of-envelope signature: This signature contains the XML document to the Signature object, which means that the label is the root element of the signature XML file

<Signature>    <MyXMLDocument>    ...    </MyXMLDocument></Signature>

Detach signature: In this case, the signature is generated independently as part of the XML. That means you'll have two XML files: one to sign the XML file and the other for the XML signature

<Signature>...</Signature><MyXMLDocument>...</MyXMLDocument>

XML signature Structure (where "?" denotes zero or one occurrence; "+" denotes one or more occurrences; and "*" denotes zero or more occurrences):

<Signature ID?>    <SignedInfo>        <CanonicalizationMethod/>        <SignatureMethod/>        (<Reference URI? >            (<Transforms>)?            <DigestMethod>            <DigestValue>        </Reference>)+    </SignedInfo>    <SignatureValue>     (<KeyInfo>)?    (<Object ID?>)*</Signature>

"Java Cryptography" XML signature