feat: Added trustpolicy and truststore packages under verification

internal/pkix/pkix.go

@@ -0,0 +1,52 @@
+package pkix
+
+import (
+	"fmt"
+
+	ldapv3 "github.com/go-ldap/ldap/v3"
+)
+
+// ParseDistinguishedName parses a DN name and validates Notary V2 rules
+func ParseDistinguishedName(name string) (map[string]string, error) {
+	mandatoryFields := []string{"C", "ST", "O"}
+	attrKeyValue := make(map[string]string)
+	dn, err := ldapv3.ParseDN(name)
+
+	if err != nil {
+		return nil, fmt.Errorf("distinguished name (DN) %q is not valid, it must contain 'C', 'ST', and 'O' RDN attributes at a minimum, and follow RFC 4514 standard", name)
+	}
+
+	for _, rdn := range dn.RDNs {
+
+		// multi-valued RDNs are not supported (TODO: add spec reference here)
+		if len(rdn.Attributes) > 1 {
+			return nil, fmt.Errorf("distinguished name (DN) %q has multi-valued RDN attributes, remove multi-valued RDN attributes as they are not supported", name)
+		}
+		for _, attribute := range rdn.Attributes {
+			if attrKeyValue[attribute.Type] == "" {
+				attrKeyValue[attribute.Type] = attribute.Value
+			} else {
+				return nil, fmt.Errorf("distinguished name (DN) %q has duplicate RDN attribute for %q, DN can only have unique RDN attributes", name, attribute.Type)
+			}
+		}
+	}
+
+	// Verify mandatory fields are present
+	for _, field := range mandatoryFields {
+		if attrKeyValue[field] == "" {
+			return nil, fmt.Errorf("distinguished name (DN) %q has no mandatory RDN attribute for %q, it must contain 'C', 'ST', and 'O' RDN attributes at a minimum", name, field)
+		}
+	}
+	// No errors
+	return attrKeyValue, nil
+}
+
+// IsSubsetDN returns true if dn1 is a subset of dn2 i.e. every key/value pair of dn1 has a matching key/value pair in dn2, otherwise returns false
+func IsSubsetDN(dn1 map[string]string, dn2 map[string]string) bool {
+	for key := range dn1 {
+		if dn1[key] != dn2[key] {
+			return false
+		}
+	}
+	return true
+}

internal/slice/slice.go

@@ -0,0 +1,11 @@
+package slice
+
+// ContainsString is a utility function to check if a string exists in an array
+func ContainsString(val string, values []string) bool {
+	for _, v := range values {
+		if v == val {
+			return true
+		}
+	}
+	return false
+}

internal/trustpolicy/trustpolicy.go

@@ -0,0 +1,6 @@
+package trustpolicy
+
+const (
+	Wildcard    = "*"
+	X509Subject = "x509.subject"
+)

verification/testdata/truststore/x509/ca/trust-store-with-invalid-certs/invalid

@@ -0,0 +1 @@
+invalid

verification/testdata/truststore/x509/ca/trust-store-with-leaf-certs-in-single-file/RootAndLeafCerts.crt

@@ -0,0 +1,43 @@
+-----BEGIN CERTIFICATE-----
+MIIDejCCAmKgAwIBAgIBAjANBgkqhkiG9w0BAQsFADBdMQswCQYDVQQGEwJVUzEL
+MAkGA1UECBMCV0ExEDAOBgNVBAcTB1NlYXR0bGUxDzANBgNVBAoTBk5vdGFyeTEe
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+-----END CERTIFICATE-----
+-----BEGIN CERTIFICATE-----
+MIIDjzCCAnegAwIBAgIBATANBgkqhkiG9w0BAQsFADBdMQswCQYDVQQGEwJVUzEL
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+WzLe
+-----END CERTIFICATE-----

verification/testdata/truststore/x509/ca/trust-store-with-leaf-certs/GlobalSignRootCA.crt

@@ -0,0 +1,22 @@
+-----BEGIN CERTIFICATE-----
+MIIDjzCCAnegAwIBAgIBATANBgkqhkiG9w0BAQsFADBdMQswCQYDVQQGEwJVUzEL
+MAkGA1UECBMCV0ExEDAOBgNVBAcTB1NlYXR0bGUxDzANBgNVBAoTBk5vdGFyeTEe
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+WzLe
+-----END CERTIFICATE-----

verification/testdata/truststore/x509/ca/trust-store-with-leaf-certs/non-ca.crt

@@ -0,0 +1,21 @@
+-----BEGIN CERTIFICATE-----
+MIIDejCCAmKgAwIBAgIBAjANBgkqhkiG9w0BAQsFADBdMQswCQYDVQQGEwJVUzEL
+MAkGA1UECBMCV0ExEDAOBgNVBAcTB1NlYXR0bGUxDzANBgNVBAoTBk5vdGFyeTEe
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+-----END CERTIFICATE-----

verification/testdata/truststore/x509/ca/valid-trust-store_SYMLINK/valid-trust-store_SYMLINK

@@ -0,0 +1 @@
+ca/valid-trust-store

verification/testdata/truststore/x509/signingAuthority/valid-trust-store-2/GlobalSignRootCA.crt

@@ -0,0 +1,21 @@
+-----BEGIN CERTIFICATE-----
+MIIDXzCCAkegAwIBAgILBAAAAAABIVhTCKIwDQYJKoZIhvcNAQELBQAwTDEgMB4G
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+-----END CERTIFICATE-----