diff --git a/go.mod b/go.mod
index a5eb801f..4600ac4a 100644
--- a/go.mod
+++ b/go.mod
@@ -5,10 +5,10 @@ go 1.15
 require (
 	github.com/alecthomas/kong v0.5.0
 	github.com/davecgh/go-spew v1.1.1
-	github.com/dswarbrick/smart v0.0.0-20190505152634-909a45200d6d // indirect
+	github.com/dswarbrick/smart v0.0.0-20190505152634-909a45200d6d
 	github.com/prometheus/client_golang v1.12.1
 	github.com/prometheus/common v0.32.1
 	golang.org/x/crypto v0.0.0-20220321153916-2c7772ba3064
-	golang.org/x/sys v0.0.0-20220207234003-57398862261d
+	golang.org/x/sys v0.0.0-20220207234003-57398862261d // indirect
 	google.golang.org/protobuf v1.28.0 // indirect
 )
diff --git a/go.sum b/go.sum
index 970caaa6..b09aa77a 100644
--- a/go.sum
+++ b/go.sum
@@ -470,7 +470,6 @@ gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.2.4/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.2.5/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.3.0/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
-gopkg.in/yaml.v2 v2.4.0 h1:D8xgwECY7CYvx+Y2n4sBz93Jn9JRvxdiyyo8CTfuKaY=
 gopkg.in/yaml.v2 v2.4.0/go.mod h1:RDklbk79AGWmwhnvt/jBztapEOGDOx6ZbXqjP6csGnQ=
 gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
 gopkg.in/yaml.v3 v3.0.0-20210107192922-496545a6307b h1:h8qDotaEPuJATrMmW04NCwg7v22aHH28wwpauUhK9Oo=
diff --git a/lb.yaml b/lb.yaml
new file mode 100644
index 00000000..94770301
--- /dev/null
+++ b/lb.yaml
@@ -0,0 +1,13 @@
+go-tcg-storage:
+  go-tcg-storage:
+    deps:
+    - file://cmd
+    - file://go.mod
+    - file://go.sum
+    - file://lb.yaml
+    - file://LICENSE
+    - file://Makefile
+    - file://pkg
+    - file://README.md
+    - file://renovate.json
+
diff --git a/pkg/core/method/method.go b/pkg/core/method/method.go
index 47903f26..27b0cced 100644
--- a/pkg/core/method/method.go
+++ b/pkg/core/method/method.go
@@ -10,6 +10,9 @@ import (
 	"bytes"
 	"errors"
 
+	//"fmt"
+	//"log"
+
 	"github.com/open-source-firmware/go-tcg-storage/pkg/core/stream"
 	"github.com/open-source-firmware/go-tcg-storage/pkg/core/uid"
 )
@@ -65,6 +68,8 @@ type Call interface {
 }
 
 type MethodCall struct {
+	iid uid.InvokingID
+	mid uid.MethodID
 	buf bytes.Buffer
 	// Used to verify detect programming errors
 	depth int
@@ -73,7 +78,7 @@ type MethodCall struct {
 
 // Prepare a new method call
 func NewMethodCall(iid uid.InvokingID, mid uid.MethodID, flags MethodFlag) *MethodCall {
-	m := &MethodCall{bytes.Buffer{}, 0, flags}
+	m := &MethodCall{iid, mid, bytes.Buffer{}, 0, flags}
 	m.buf.Write(stream.Token(stream.Call))
 	m.Bytes(iid[:])
 	m.Bytes(mid[:])
@@ -82,9 +87,158 @@ func NewMethodCall(iid uid.InvokingID, mid uid.MethodID, flags MethodFlag) *Meth
 	return m
 }
 
+// func (m *MethodCall) parseParams(params stream.List) {
+// 	for i := 0; i < len(params); i++ {
+// 		param := params[i]
+// 		tok, ok1 := param.(stream.TokenType)
+// 		if ok1 {
+// 			if tok == stream.StartName {
+// 				_, ok1 := params[i+1].([]byte) // name
+// 				_, ok2 := params[i+2].(uint)   // val2
+// 				endToc, ok3 := params[i+3].(stream.TokenType)
+// 				if ok1 && ok2 && ok3 && endToc == stream.EndName {
+// 					//log.Printf("got tokenType %q on params[%d]. name: %s, index: %d", tok.String(), i, string(name), uint(val2))
+// 					i += 3
+// 				} else {
+// 					_, ok1 := params[i+1].(uint)   //val1
+// 					_, ok2 := params[i+2].([]byte) //name
+// 					endToc, ok3 := params[i+3].(stream.TokenType)
+// 					if ok1 && ok2 && ok3 && endToc == stream.EndName {
+// 						//log.Printf("got tokenType %q on params[%d]. index: %d, name: %s", tok.String(), i, uint(val1), string(name))
+// 						i += 3
+// 					} else {
+// 						//log.Printf("got tokenType %q on params[%d]", tok.String(), i)
+// 					}
+// 				}
+// 			}
+// 			continue
+// 		}
+// 		lst, ok2 := param.(stream.List)
+// 		if ok2 {
+// 			//log.Printf("got list on params[%d]", i)
+// 			m.parseParams(lst)
+// 			continue
+// 		}
+// 		_, ok3 := param.(uint)
+// 		if ok3 {
+// 			//log.Printf("got uint on params[%d]", i)
+// 			continue
+// 		}
+// 		_, ok4 := param.([]byte)
+// 		if ok4 {
+// 			//log.Printf("got []byte on params[%d]", i)
+// 			continue
+// 		}
+// 		log.Printf("unknown value at params[%d], %v", i, param)
+// 	}
+// }
+
+// func (m *MethodCall) String() string {
+// 	var buff bytes.Buffer
+// 	b, err := m.MarshalBinary()
+// 	if err != nil {
+// 		log.Printf("failed to marshal binary")
+// 		return ""
+// 	}
+
+// 	req, err := stream.Decode(b)
+// 	if err != nil {
+// 		log.Printf("failed to decode m")
+// 		return ""
+// 	}
+// 	if len(req) >= 6 {
+// 		if tok, ok := req[0].(stream.TokenType); !ok || tok != stream.Call {
+// 			log.Printf("expected first token to be Call")
+// 			return ""
+// 		}
+// 		var uidStr uid.InvokingID
+// 		var midstr uid.MethodID
+// 		if iid, ok := req[1].([]byte); !ok {
+// 			log.Printf("expected uid")
+// 			return ""
+// 		} else {
+// 			copy(uidStr[:], iid[:8])
+// 		}
+// 		if mid, ok := req[2].([]byte); !ok {
+// 			return ""
+// 		} else {
+// 			copy(midstr[:], mid[:8])
+// 		}
+// 		if params, ok := req[3].(stream.List); ok {
+// 			m.parseParams(params)
+// 		}
+
+// 		// if tok, ok := req[4].(stream.TokenType); ok {
+// 		// 	if lst, ok := req[5].(stream.List); ok {
+// 		// 		log.Printf("got tokenType %q: %v", tok.String(), lst)
+// 		// 	}
+// 		// }
+// 		if midstr == uid.MethodIDSMStartSession {
+// 			reqBytes := req[3].(stream.List)
+// 			hsn := reqBytes[0]
+// 			spid := reqBytes[1].([]byte)
+// 			readOnly := reqBytes[2].(uint)
+// 			// for some reason readOnly is opposite - we set mc.Bool(!s.ReadOnly) so 0 means read-only -- go figure
+// 			buff.WriteString(fmt.Sprintf("[MethodID: StartSession] hsn: %d, spid: %v, readOnly: %t", hsn, spid, readOnly == 0))
+// 		} else if midstr == uid.OpalGet {
+// 			buff.WriteString("[MethodID: Get]")
+// 		} else if midstr == uid.OpalNext {
+// 			buff.WriteString("[MethodID: Next]")
+// 		} else if midstr == uid.OpalSet {
+// 			reqBytes := req[3].(stream.List)
+// 			_ = reqBytes[0].(stream.TokenType) //startList
+// 			_ = reqBytes[1].(uint)
+// 			lst := reqBytes[2].(stream.List)
+// 			_ = lst[0].(stream.TokenType) //startName
+// 			length := lst[1].(uint)       //len
+// 			name, ok := lst[2].([]byte)   //data
+// 			if !ok {
+// 				buff.WriteString(fmt.Sprintf("[MethodID: Set] %v,", req[3]))
+// 			}
+// 			_ = lst[3].(stream.TokenType) //endName
+// 			buff.WriteString(fmt.Sprintf("[MethodID: Set] len: %v, name: %v", length, string(name)))
+// 		} else if midstr == uid.OpalAuthenticate {
+// 			reqBytes := req[3].(stream.List)
+// 			lockingAuthority := reqBytes[0].([]byte)
+// 			_ = reqBytes[1].(stream.TokenType) //startName
+// 			length := reqBytes[2].(uint)
+// 			name := reqBytes[3].([]byte)
+// 			_ = reqBytes[4].(stream.TokenType) //endName
+// 			buff.WriteString(fmt.Sprintf("[MethodID: Authenticate] authority: %v, len: %d, name: %s", lockingAuthority, length, string(name)))
+// 		} else if midstr == uid.OpalRevert {
+// 			buff.WriteString("[MethodID: Revert]")
+// 		} else if midstr == uid.MethodIDSMProperties {
+// 			// var tp TPerProperties
+// 			// parseTPerProperties(req[3].(stream.List), &tp)
+// 			// buff.WriteString(fmt.Sprintf("[MethodID: Properties] tp: %v", tp))
+// 			// reqBytes := req[3].(stream.List)
+// 			// for i := 0; i < len(reqBytes); i++ {
+// 			// 	tokenType := reqBytes[i].(stream.TokenType)
+// 			// 	if tokenType == stream.StartName {
+// 			// 		length := reqBytes[i+1].(uint)
+// 			// 		name := reqBytes[i+2].(stream.List)
+// 			// 		_ = reqBytes[i+3].(stream.TokenType)
+// 			// 		buff.WriteString(fmt.Sprintf("[MethodID: Properties] tokenType: %v, length: %d, name: %s", stream.StartName, length, name))
+// 			// 		i += 3
+// 			// 	}
+// 		} else {
+// 			buff.WriteString(fmt.Sprintf("default to invoking-id: %s, method-id: %s. req: %+v", uidStr.String(), midstr.String(), req[3]))
+// 		}
+// 		return buff.String()
+// 	}
+
+// 	return fmt.Sprintf("unhandled method call - invoking-id: %s, method-id: %s. req: %+v", m.iid.String(), m.mid.String(), req)
+// }
+
 // Copy the current state of a method call into a new independent copy
 func (m *MethodCall) Clone() *MethodCall {
-	mn := &MethodCall{bytes.Buffer{}, m.depth, m.flags}
+	mn := &MethodCall{
+		iid:   m.iid,
+		mid:   m.mid,
+		buf:   bytes.Buffer{},
+		depth: m.depth,
+		flags: m.flags,
+	}
 	mn.buf.Write(m.buf.Bytes())
 	return mn
 }
diff --git a/pkg/core/uid/methods.go b/pkg/core/uid/methods.go
index ff8ee0a1..f67b0649 100644
--- a/pkg/core/uid/methods.go
+++ b/pkg/core/uid/methods.go
@@ -4,6 +4,10 @@
 
 package uid
 
+import (
+	"fmt"
+)
+
 type MethodID UID
 
 var (
@@ -35,3 +39,54 @@ var (
 	OpalRandom                 = MethodID{0x00, 0x00, 0x00, 0x06, 0x00, 0x00, 0x06, 0x01}
 	OpalErase                  = MethodID{0x00, 0x00, 0x00, 0x06, 0x00, 0x00, 0x08, 0x03}
 )
+
+func (mid MethodID) String() string {
+	switch mid {
+	case MethodIDSMProperties:
+		return "MethodIDSMProperties"
+	case MethodIDSMStartSession:
+		return "MethodIDSMStartSession"
+	case MethodIDSMSyncSession:
+		return "MethodIDSMSyncSession"
+	case MethodIDSMStartTrustedSession:
+		return "MethodIDSMStartTrustedSession"
+	case MethodIDSMSyncTrustedSession:
+		return "MethodIDSMSyncTrustedSession"
+	case MethodIDSMCloseSession:
+		return "MethodIDSMCloseSession"
+	case OpalProperties:
+		return "OpalProperties"
+	case OpalStartSession:
+		return "OpalStartSession"
+	case OpalRevert:
+		return "OpalRevert"
+	case OpalActivate:
+		return "OpalActivate"
+	case OpalEnterpriseGet:
+		return "OpalEnterpriseGet"
+	case OpalEnterpriseSet:
+		return "OpalEnterpriseSet"
+	case OpalNext:
+		return "OpalNext"
+	case OpalEnterpriseAuthenticate:
+		return "OpalEnterpriseAuthenticate"
+	case OpalGetACL:
+		return "OpalGetACL"
+	case OpalGenKey:
+		return "OpalGenKey"
+	case OpalRevertSP:
+		return "OpalRevertSP"
+	case OpalSet:
+		return "OpalSet"
+	case OpalGet:
+		return "OpalGet"
+	case OpalAuthenticate:
+		return "OpalAuthenticate"
+	case OpalRandom:
+		return "OpalRandom"
+	case OpalErase:
+		return "OpalErase"
+	}
+	return fmt.Sprintf("%v", mid)
+}
+
diff --git a/pkg/core/uid/uid.go b/pkg/core/uid/uid.go
index 91b4a14a..f0078423 100644
--- a/pkg/core/uid/uid.go
+++ b/pkg/core/uid/uid.go
@@ -4,6 +4,10 @@
 
 package uid
 
+import (
+	"fmt"
+)
+
 // UID is a general type which all UID shall be based upon.
 // Specified in TCG Storage Architecture Core Specification Version 2.01 - Rev 1.0
 type UID [8]byte
@@ -25,6 +29,7 @@ var (
 var (
 	LockingAuthorityBandMaster0 = AuthorityObjectUID{0x00, 0x00, 0x00, 0x09, 0x00, 0x00, 0x80, 0x01}
 	LockingAuthorityAdmin1      = AuthorityObjectUID{0x00, 0x00, 0x00, 0x09, 0x00, 0x01, 0x00, 0x01}
+	LockingAuthorityAdmin2      = AuthorityObjectUID{0x00, 0x00, 0x00, 0x09, 0x00, 0x01, 0x00, 0x02}
 	AuthorityAnybody            = AuthorityObjectUID{0x00, 0x00, 0x00, 0x09, 0x00, 0x00, 0x00, 0x01}
 	AuthoritySID                = AuthorityObjectUID{0x00, 0x00, 0x00, 0x09, 0x00, 0x00, 0x00, 0x06}
 	AuthorityPSID               = AuthorityObjectUID{0x00, 0x00, 0x00, 0x09, 0x00, 0x01, 0xFF, 0x01} // Opal Feature Set: PSID
@@ -39,3 +44,37 @@ var (
 	LockingSP           = SPID{0x00, 0x00, 0x02, 0x05, 0x00, 0x00, 0x00, 0x02}
 	EnterpriseLockingSP = SPID{0x00, 0x00, 0x02, 0x05, 0x00, 0x01, 0x00, 0x01} // Enterprise SSC
 )
+
+var (
+	// 5.3.2.12 Credential Table Group - C_PIN (Object Table)
+	CPIN_SID  InvokingID = [8]byte{0x00, 0x00, 0x00, 0x0B, 0x00, 0x00, 0x00, 0x01}
+	CPIN_MSID InvokingID = [8]byte{0x00, 0x00, 0x00, 0x0B, 0x00, 0x00, 0x54, 0x02}
+)
+
+func (iid InvokingID) String() string {
+	switch iid {
+	case InvokeIDNull:
+		return "InvokeIDNull"
+	case InvokeIDThisSP:
+		return "InvokeIDThisSP"
+	case InvokeIDSMU:
+		return "InvokeIDSMU"
+	case InvokingID(AdminSP):
+		return "AdminSP"
+	case InvokingID(LockingSP):
+		return "LockingSP"
+	case InvokingID(EnterpriseLockingSP):
+		return "EnterpriseLockingSP"
+	case InvokingID(AuthorityPSID):
+		return "AuthorityPSID"
+	case InvokingID(AuthorityAnybody):
+		return "AuthorityAnybody"
+	case InvokingID(AuthoritySID):
+		return "AuthoritySID"
+	case InvokingID(CPIN_SID):
+		return "CPIN_SID"
+	case InvokingID(CPIN_MSID):
+		return "CPIN_MSID"
+	}
+	return fmt.Sprintf("%v", iid)
+}