add REC-xml-c14n-20010315 canonical algorithms

canonicalize.go

@@ -56,6 +56,40 @@ func (c *c14N11Canonicalizer) Algorithm() AlgorithmID {
 	return CanonicalXML11AlgorithmId
 }
 
+type c14N10RecCanonicalizer struct{}
+
+// MakeC14N10RecCanonicalizer constructs an inclusive canonicalizer.
+func MakeC14N10RecCanonicalizer() Canonicalizer {
+	return &c14N10RecCanonicalizer{}
+}
+
+// Canonicalize transforms the input Element into a serialized XML document in canonical form.
+func (c *c14N10RecCanonicalizer) Canonicalize(el *etree.Element) ([]byte, error) {
+	scope := make(map[string]struct{})
+	return canonicalSerialize(canonicalPrep(el, scope))
+}
+
+func (c *c14N10RecCanonicalizer) Algorithm() AlgorithmID {
+	return CanonicalXML10RecAlgorithmId
+}
+
+type c14N10CommentCanonicalizer struct{}
+
+// MakeC14N10CommentCanonicalizer constructs an inclusive canonicalizer.
+func MakeC14N10CommentCanonicalizer() Canonicalizer {
+	return &c14N10CommentCanonicalizer{}
+}
+
+// Canonicalize transforms the input Element into a serialized XML document in canonical form.
+func (c *c14N10CommentCanonicalizer) Canonicalize(el *etree.Element) ([]byte, error) {
+	scope := make(map[string]struct{})
+	return canonicalSerialize(canonicalPrep(el, scope))
+}
+
+func (c *c14N10CommentCanonicalizer) Algorithm() AlgorithmID {
+	return CanonicalXML10CommentAlgorithmId
+}
+
 func composeAttr(space, key string) string {
 	if space != "" {
 		return space + ":" + key

validate.go

@@ -116,6 +116,12 @@ func (ctx *ValidationContext) transform(
 		case CanonicalXML11AlgorithmId:
 			canonicalizer = MakeC14N11Canonicalizer()
 
+		case CanonicalXML10RecAlgorithmId:
+			canonicalizer = MakeC14N10RecCanonicalizer()
+
+		case CanonicalXML10CommentAlgorithmId:
+			canonicalizer = MakeC14N10CommentCanonicalizer()
+
 		default:
 			return nil, nil, errors.New("Unknown Transform Algorithm: " + algo)
 		}
@@ -303,6 +309,12 @@ func (ctx *ValidationContext) findSignature(el *etree.Element) (*types.Signature
 				case CanonicalXML11AlgorithmId:
 					canonicalSignedInfo = canonicalPrep(detachedSignedInfo, map[string]struct{}{})
 
+				case CanonicalXML10RecAlgorithmId:
+					canonicalSignedInfo = canonicalPrep(detachedSignedInfo, map[string]struct{}{})
+
+				case CanonicalXML10CommentAlgorithmId:
+					canonicalSignedInfo = canonicalPrep(detachedSignedInfo, map[string]struct{}{})
+
 				default:
 					return fmt.Errorf("invalid CanonicalizationMethod on Signature: %s", c14NAlgorithm)
 				}

xml_constants.go

@@ -50,6 +50,9 @@ const (
 	CanonicalXML10ExclusiveAlgorithmId AlgorithmID = "http://www.w3.org/2001/10/xml-exc-c14n#"
 	CanonicalXML11AlgorithmId          AlgorithmID = "http://www.w3.org/2006/12/xml-c14n11"
 
+	CanonicalXML10RecAlgorithmId     AlgorithmID = "http://www.w3.org/TR/2001/REC-xml-c14n-20010315"
+	CanonicalXML10CommentAlgorithmId AlgorithmID = "http://www.w3.org/TR/2001/REC-xml-c14n-20010315#WithComments"
+
 	EnvelopedSignatureAltorithmId AlgorithmID = "http://www.w3.org/2000/09/xmldsig#enveloped-signature"
 )