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## Package javax.xml.crypto.dsig

Classes for generating and validating XML digital signatures.

See:
Description

Interface Summary
CanonicalizationMethod | A representation of the XML `CanonicalizationMethod` element as defined in the W3C Recommendation for XML-Signature Syntax and Processing.
DigestMethod | A representation of the XML `DigestMethod` element as defined in the W3C Recommendation for XML-Signature Syntax and Processing.
Manifest | A representation of the XML `Manifest` element as defined in the W3C Recommendation for XML-Signature Syntax and Processing.
Reference | A representation of the `Reference` element as defined in the W3C Recommendation for XML-Signature Syntax and Processing.
SignatureMethod | A representation of the XML `SignatureMethod` element as defined in the W3C Recommendation for XML-Signature Syntax and Processing.
SignatureProperties | A representation of the XML `SignatureProperties` element as defined in the W3C Recommendation for XML-Signature Syntax and Processing.
SignatureProperty | A representation of the XML `SignatureProperty` element as defined in the W3C Recommendation for XML-Signature Syntax and Processing.
SignedInfo | An representation of the XML `SignedInfo` element as defined in the W3C Recommendation for XML-Signature Syntax and Processing.
Transform | A representation of the XML `Transform` element as defined in the W3C Recommendation for XML-Signature Syntax and Processing.
XMLObject | A representation of the XML `Object` element as defined in the W3C Recommendation for XML-Signature Syntax and Processing.
XMLSignature | A representation of the XML `Signature` element as defined in the W3C Recommendation for XML-Signature Syntax and Processing.
XMLSignature.SignatureValue | A representation of the XML `SignatureValue` element as defined in the W3C Recommendation for XML-Signature Syntax and Processing.
XMLSignContext | Contains context information for generating XML Signatures.
XMLValidateContext | Contains context information for validating XML Signatures.

Class Summary
TransformService | A Service Provider Interface for transform and canonicalization algorithms.
XMLSignatureFactory | A factory for creating `XMLSignature` objects from scratch or for unmarshalling an `XMLSignature` object from a corresponding XML representation.

Exception Summary
TransformException | Indicates an exceptional condition that occured while executing a transform algorithm.
XMLSignatureException | Indicates an exceptional condition that occured during the XML signature generation or validation process.

## Package javax.xml.crypto.dsig Description

Classes for generating and validating XML digital signatures. This package includes classes that represent the core elements defined in the W3C XML digital signature specification: `XMLSignature`, `SignedInfo`, `CanonicalizationMethod`, `SignatureMethod`, `Reference`, `DigestMethod`, `XMLObject`, `Manifest`, `SignatureProperties`, and `SignatureProperty`. `KeyInfo` types are defined in the `javax.xml.crypto.dsig.keyinfo` subpackage. `XMLSignatureFactory` is an abstract factory that creates `XMLSignature` objects from scratch or from a pre-existing XML representation, such as a DOM node. `TransformService` is a service provider interface for creating and plugging in implementations of transform and canonicalization algorithms.

Of primary significance in this package is the `XMLSignature` class, which allows you to sign and validate an XML digital signature.

## Package Specification

- XML-Signature Syntax and Processing: W3C Recommendation
- RFC 3275: XML-Signature Syntax and Processing

Since:
  1.6

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| Java™ Platform Standard Ed. 6
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For further API reference and developer documentation, see Java SE Developer Documentation. That documentation contains more detailed, developer-targeted descriptions, with conceptual overviews, definitions of terms, workarounds, and working code examples.

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