1. Capability to check each Reference to to see if the data object matches with the expected data object.
2. The cryptographic signature validation of the signature calculated over SignedInfo.
3. Reference validation, the verification of the digest contained in each Reference in SignedInfo.

Test Cases for C14N 1.1 and XMLDSig Interoperability
http://www.w3.org/2007/xmlsec/interop/xmlsig-interop-doc/testcases.html

3.1 Signature Generation

3.1.1 Reference Generation

3.1.2 Signature Generation

3.2 Core Validation

3.2.1 Reference Validation

3.2.2 Signature Validation

All?

4.1 The ds:CryptoBinary Simple Type

4.2 The Signature element

4.3 The SignatureValue Element

4.4 The SignedInfo Element

4.4.1 The CanonicalizationMethod Element
4.4.2 The SignatureMethod Element
4.4.3 The Reference Element

4.4.3.1 The URI Attribute
4.4.3.2 The Reference Processing Model
4.4.3.3 Same-Document URI-References
4.4.3.4 The Transforms Element
4.4.3.5 The DigestMethod Element
4.4.3.6 The DigestValue Element

4.5 The KeyInfo Element

4.5.1 The KeyName Element
4.5.2 The KeyValue Element

4.5.2.1 The DSAKeyValue Element
4.5.2.2 The RSAKeyValue Element
4.5.2.3 The ECKeyValue Element

4.5.2.3.1 Explicit Curve Parameters
4.5.2.3.2 Compatibility with RFC 4050

4.5.3 The RetrievalMethod Element
4.5.4 The X509Data Element

4.5.4.1 Distinguished Name Encoding Rules

4.5.5 The PGPData Element
4.5.6 The SPKIData Element
4.5.7 The MgmtData Element
4.5.8 XML Encryption EncryptedKey and DerivedKey Elements

4.5.9 The DEREncodedKeyValue Element
4.5.10 The KeyInfoReference Element

4.6 The Object Element

5.1 The Manifest Element

5.2 The SignatureProperties Element

5.3 Processing Instructions in Signature Elements

5.4 Comments in Signature Elements

6. Algorithms

6.1 Algorithm Identifiers and Implementation Requirements

6.2 Message Digests

6.2.1 SHA-1
6.2.2 SHA-256
6.2.3 SHA-384
6.2.4 SHA-512

6.3 Message Authentication Codes

6.3.1 HMA

6.4 Signature Algorithms

6.4.1 DSA
6.4.2 RSA (PKCShttp://www.w3.org/TR/xmldsig-core1/#1 v1.5)
6.4.3 ECDSA

6.5 Canonicalization Algorithms

6.5.1 Canonical XML 1.0
6.5.2 Canonical XML 1.1
6.5.3 Exclusive XML Canonicalization 1.0

3.2 Test Cases for Canonicalization 1.1
        3.2.1 Test Cases for xml:lang attribute
        3.2.2 Test Cases for xml:space attribute
        3.2.3 Test Cases for xml:id attribute
        3.2.4 Test Cases for xml:base attribute
            3.2.4.1 Test Cases for checking xml:base attribute propagation
                3.2.4.1.1 Test case c14n11/xmlbase-prop-1
                3.2.4.1.2 Test case c14n11/xmlbase-prop-2
                3.2.4.1.3 Test case c14n11/xmlbase-prop-3
                3.2.4.1.4 Test case c14n11/xmlbase-prop-4
                3.2.4.1.5 Test case c14n11/xmlbase-prop-5
                3.2.4.1.6 Test case c14n11/xmlbase-prop-6
                3.2.4.1.7 Test case c14n11/xmlbase-prop-7
            3.2.4.2 Test Cases for checking XML-C14N1.1 specification tests
                3.2.4.2.1 Test case c14n11/xmlbase-c14n11spec-102
                3.2.4.2.2 Test case c14n11/xmlbase-c14n11spec2-102
                3.2.4.2.3 Test case c14n11/xmlbase-c14n11spec3-103
        3.2.5 Test Cases for checking examples in the XML-C14N1.1 Appendix

3.3.1 Test Cases for C14N 1.1 in XMLDSig

6.6 Transform Algorithms

6.6.1 Canonicalization
6.6.2 Base64
6.6.3 XPath Filtering
6.6.4 Enveloped Signature Transform
6.6.5 XSLT Transform