Rename ecosystem to origin (#542)

* rename ecosystem to origin

Signed-off-by: Asra Ali <asraa@google.com>

* update comments

Signed-off-by: Asra Ali <asraa@google.com>

pkg/api/tlog.go

@@ -51,9 +51,9 @@ func GetLogInfoHandler(params tlog.GetLogInfoParams) middleware.Responder {
 	treeSize := int64(root.TreeSize)
 
 	sth, err := util.CreateSignedCheckpoint(util.Checkpoint{
-		Ecosystem: "Rekor",
-		Size:      root.TreeSize,
-		Hash:      root.RootHash,
+		Origin: "Rekor",
+		Size:   root.TreeSize,
+		Hash:   root.RootHash,
 	})
 	if err != nil {
 		return handleRekorAPIError(params, http.StatusInternalServerError, fmt.Errorf("marshalling error: %w", err), sthGenerateError)

pkg/util/checkpoint.go

@@ -28,8 +28,8 @@ import (
 // heavily borrowed from https://github.com/google/trillian-examples/blob/master/formats/log/checkpoint.go
 
 type Checkpoint struct {
-	// Ecosystem is the ecosystem/version string
-	Ecosystem string
+	// Origin is the unique identifier/version string
+	Origin string
 	// Size is the number of entries in the log at this checkpoint.
 	Size uint64
 	// Hash is the hash which commits to the contents of the entire log.
@@ -41,7 +41,7 @@ type Checkpoint struct {
 // String returns the String representation of the Checkpoint
 func (c Checkpoint) String() string {
 	var b strings.Builder
-	fmt.Fprintf(&b, "%s\n%d\n%s\n", c.Ecosystem, c.Size, base64.StdEncoding.EncodeToString(c.Hash))
+	fmt.Fprintf(&b, "%s\n%d\n%s\n", c.Origin, c.Size, base64.StdEncoding.EncodeToString(c.Hash))
 	for _, line := range c.OtherContent {
 		fmt.Fprintf(&b, "%s\n", line)
 	}
@@ -70,8 +70,8 @@ func (c *Checkpoint) UnmarshalCheckpoint(data []byte) error {
 	if len(l) < 4 {
 		return errors.New("invalid checkpoint - too few newlines")
 	}
-	eco := string(l[0])
-	if len(eco) == 0 {
+	origin := string(l[0])
+	if len(origin) == 0 {
 		return errors.New("invalid checkpoint - empty ecosystem")
 	}
 	size, err := strconv.ParseUint(string(l[1]), 10, 64)
@@ -83,9 +83,9 @@ func (c *Checkpoint) UnmarshalCheckpoint(data []byte) error {
 		return fmt.Errorf("invalid checkpoint - invalid hash: %w", err)
 	}
 	*c = Checkpoint{
-		Ecosystem: eco,
-		Size:      size,
-		Hash:      h,
+		Origin: origin,
+		Size:   size,
+		Hash:   h,
 	}
 	if len(l) >= 3 {
 		for _, line := range l[3:] {

pkg/util/checkpoint_test.go

@@ -40,21 +40,21 @@ func TestMarshalCheckpoint(t *testing.T) {
 	}{
 		{
 			c: Checkpoint{
-				Ecosystem: "Log Checkpoint v0",
-				Size:      123,
-				Hash:      []byte("bananas"),
+				Origin: "Log Checkpoint v0",
+				Size:   123,
+				Hash:   []byte("bananas"),
 			},
 			want: "Log Checkpoint v0\n123\nYmFuYW5hcw==\n",
 		}, {
 			c: Checkpoint{
-				Ecosystem: "Banana Checkpoint v5",
-				Size:      9944,
-				Hash:      []byte("the view from the tree tops is great!"),
+				Origin: "Banana Checkpoint v5",
+				Size:   9944,
+				Hash:   []byte("the view from the tree tops is great!"),
 			},
 			want: "Banana Checkpoint v5\n9944\ndGhlIHZpZXcgZnJvbSB0aGUgdHJlZSB0b3BzIGlzIGdyZWF0IQ==\n",
 		}, {
 			c: Checkpoint{
-				Ecosystem:    "Banana Checkpoint v7",
+				Origin:       "Banana Checkpoint v7",
 				Size:         9943,
 				Hash:         []byte("the view from the tree tops is great!"),
 				OtherContent: []string{"foo", "bar"},
@@ -85,23 +85,23 @@ func TestUnmarshalCheckpoint(t *testing.T) {
 			desc: "valid one",
 			m:    "Log Checkpoint v0\n123\nYmFuYW5hcw==\n",
 			want: Checkpoint{
-				Ecosystem: "Log Checkpoint v0",
-				Size:      123,
-				Hash:      []byte("bananas"),
+				Origin: "Log Checkpoint v0",
+				Size:   123,
+				Hash:   []byte("bananas"),
 			},
 		}, {
 			desc: "valid with different ecosystem",
 			m:    "Banana Checkpoint v1\n9944\ndGhlIHZpZXcgZnJvbSB0aGUgdHJlZSB0b3BzIGlzIGdyZWF0IQ==\n",
 			want: Checkpoint{
-				Ecosystem: "Banana Checkpoint v1",
-				Size:      9944,
-				Hash:      []byte("the view from the tree tops is great!"),
+				Origin: "Banana Checkpoint v1",
+				Size:   9944,
+				Hash:   []byte("the view from the tree tops is great!"),
 			},
 		}, {
 			desc: "valid with trailing data",
 			m:    "Log Checkpoint v0\n9944\ndGhlIHZpZXcgZnJvbSB0aGUgdHJlZSB0b3BzIGlzIGdyZWF0IQ==\nHere's some associated data.\n",
 			want: Checkpoint{
-				Ecosystem:    "Log Checkpoint v0",
+				Origin:       "Log Checkpoint v0",
 				Size:         9944,
 				Hash:         []byte("the view from the tree tops is great!"),
 				OtherContent: []string{"Here's some associated data."},
@@ -110,7 +110,7 @@ func TestUnmarshalCheckpoint(t *testing.T) {
 			desc: "valid with multiple trailing data lines",
 			m:    "Log Checkpoint v0\n9944\ndGhlIHZpZXcgZnJvbSB0aGUgdHJlZSB0b3BzIGlzIGdyZWF0IQ==\nlots\nof\nlines\n",
 			want: Checkpoint{
-				Ecosystem:    "Log Checkpoint v0",
+				Origin:       "Log Checkpoint v0",
 				Size:         9944,
 				Hash:         []byte("the view from the tree tops is great!"),
 				OtherContent: []string{"lots", "of", "lines"},
@@ -119,9 +119,9 @@ func TestUnmarshalCheckpoint(t *testing.T) {
 			desc: "valid with trailing newlines",
 			m:    "Log Checkpoint v0\n9944\ndGhlIHZpZXcgZnJvbSB0aGUgdHJlZSB0b3BzIGlzIGdyZWF0IQ==\n\n\n\n",
 			want: Checkpoint{
-				Ecosystem: "Log Checkpoint v0",
-				Size:      9944,
-				Hash:      []byte("the view from the tree tops is great!"),
+				Origin: "Log Checkpoint v0",
+				Size:   9944,
+				Hash:   []byte("the view from the tree tops is great!"),
 			},
 		}, {
 			desc:    "invalid - insufficient lines",
@@ -184,9 +184,9 @@ func TestSigningRoundtripCheckpoint(t *testing.T) {
 	}{
 		{
 			c: Checkpoint{
-				Ecosystem: "Log Checkpoint RSA v0",
-				Size:      123,
-				Hash:      []byte("bananas"),
+				Origin: "Log Checkpoint RSA v0",
+				Size:   123,
+				Hash:   []byte("bananas"),
 			},
 			identity:      "someone",
 			signer:        rsaKey,
@@ -197,9 +197,9 @@ func TestSigningRoundtripCheckpoint(t *testing.T) {
 		},
 		{
 			c: Checkpoint{
-				Ecosystem: "Log Checkpoint ECDSA v0",
-				Size:      123,
-				Hash:      []byte("bananas"),
+				Origin: "Log Checkpoint ECDSA v0",
+				Size:   123,
+				Hash:   []byte("bananas"),
 			},
 			identity:      "someone",
 			signer:        ecdsaKey,
@@ -210,9 +210,9 @@ func TestSigningRoundtripCheckpoint(t *testing.T) {
 		},
 		{
 			c: Checkpoint{
-				Ecosystem: "Log Checkpoint Ed25519 v0",
-				Size:      123,
-				Hash:      []byte("bananas"),
+				Origin: "Log Checkpoint Ed25519 v0",
+				Size:   123,
+				Hash:   []byte("bananas"),
 			},
 			identity:      "someone",
 			signer:        edPrivKey,
@@ -223,9 +223,9 @@ func TestSigningRoundtripCheckpoint(t *testing.T) {
 		},
 		{
 			c: Checkpoint{
-				Ecosystem: "Log Checkpoint Mismatch v0",
-				Size:      123,
-				Hash:      []byte("bananas"),
+				Origin: "Log Checkpoint Mismatch v0",
+				Size:   123,
+				Hash:   []byte("bananas"),
 			},
 			identity:      "someone",
 			signer:        edPrivKey,
@@ -236,9 +236,9 @@ func TestSigningRoundtripCheckpoint(t *testing.T) {
 		},
 		{
 			c: Checkpoint{
-				Ecosystem: "Log Checkpoint Mismatch v1",
-				Size:      123,
-				Hash:      []byte("bananas"),
+				Origin: "Log Checkpoint Mismatch v1",
+				Size:   123,
+				Hash:   []byte("bananas"),
 			},
 			identity:      "someone",
 			signer:        ecdsaKey,
@@ -249,9 +249,9 @@ func TestSigningRoundtripCheckpoint(t *testing.T) {
 		},
 		{
 			c: Checkpoint{
-				Ecosystem: "Log Checkpoint Mismatch v2",
-				Size:      123,
-				Hash:      []byte("bananas"),
+				Origin: "Log Checkpoint Mismatch v2",
+				Size:   123,
+				Hash:   []byte("bananas"),
 			},
 			identity:      "someone",
 			signer:        edPrivKey,
@@ -262,9 +262,9 @@ func TestSigningRoundtripCheckpoint(t *testing.T) {
 		},
 		{
 			c: Checkpoint{
-				Ecosystem: "Log Checkpoint Mismatch v3",
-				Size:      123,
-				Hash:      []byte("bananas"),
+				Origin: "Log Checkpoint Mismatch v3",
+				Size:   123,
+				Hash:   []byte("bananas"),
 			},
 			identity:      "someone",
 			signer:        ecdsaKey,
@@ -274,7 +274,7 @@ func TestSigningRoundtripCheckpoint(t *testing.T) {
 			wantVerifyErr: true,
 		},
 	} {
-		t.Run(string(test.c.Ecosystem), func(t *testing.T) {
+		t.Run(string(test.c.Origin), func(t *testing.T) {
 			sth, err := CreateSignedCheckpoint(test.c)
 			if err != nil {
 				t.Fatalf("error creating signed checkpoint")
@@ -332,9 +332,9 @@ func TestInvalidSigVerification(t *testing.T) {
 	}{
 		{
 			checkpoint: Checkpoint{
-				Ecosystem: "Log Checkpoint v0",
-				Size:      123,
-				Hash:      []byte("bananas"),
+				Origin: "Log Checkpoint v0",
+				Size:   123,
+				Hash:   []byte("bananas"),
 			},
 			s:              []note.Signature{},
 			pubKey:         ecdsaKey.Public(),
@@ -343,9 +343,9 @@ func TestInvalidSigVerification(t *testing.T) {
 		{
 
 			checkpoint: Checkpoint{
-				Ecosystem: "Log Checkpoint v0 not base64",
-				Size:      123,
-				Hash:      []byte("bananas"),
+				Origin: "Log Checkpoint v0 not base64",
+				Size:   123,
+				Hash:   []byte("bananas"),
 			},
 			pubKey: ecdsaKey.Public(),
 			s: []note.Signature{
@@ -359,9 +359,9 @@ func TestInvalidSigVerification(t *testing.T) {
 		},
 		{
 			checkpoint: Checkpoint{
-				Ecosystem: "Log Checkpoint v0 invalid signature",
-				Size:      123,
-				Hash:      []byte("bananas"),
+				Origin: "Log Checkpoint v0 invalid signature",
+				Size:   123,
+				Hash:   []byte("bananas"),
 			},
 			pubKey: ecdsaKey.Public(),
 			s: []note.Signature{
@@ -374,7 +374,7 @@ func TestInvalidSigVerification(t *testing.T) {
 			expectedResult: false,
 		},
 	} {
-		t.Run(string(test.checkpoint.Ecosystem), func(t *testing.T) {
+		t.Run(string(test.checkpoint.Origin), func(t *testing.T) {
 			text, _ := test.checkpoint.MarshalCheckpoint()
 			sc := SignedNote{
 				Note:       string(text),

pkg/util/timestamp_note.go

@@ -30,8 +30,8 @@ import (
 // Signed note based timestamp responses
 
 type TimestampNote struct {
-	// Ecosystem is the ecosystem/version string
-	Ecosystem string
+	// Origin is the unique identifier/version string
+	Origin string
 	// MessageImprint is the hash of the message to timestamp, of the form sha256:<sha>
 	MessageImprint string
 	// Nonce is a short random  bytes to prove response freshness
@@ -50,7 +50,7 @@ type TimestampNote struct {
 func (t TimestampNote) String() string {
 	var b strings.Builder
 	time, _ := t.Time.MarshalText()
-	fmt.Fprintf(&b, "%s\n%s\n%s\n%s\n%d\n%s\n", t.Ecosystem, t.MessageImprint, base64.StdEncoding.EncodeToString(t.Nonce),
+	fmt.Fprintf(&b, "%s\n%s\n%s\n%s\n%d\n%s\n", t.Origin, t.MessageImprint, base64.StdEncoding.EncodeToString(t.Nonce),
 		time, t.Radius, t.CertChainRef)
 	for _, line := range t.OtherContent {
 		fmt.Fprintf(&b, "%s\n", line)
@@ -83,8 +83,8 @@ func (t *TimestampNote) UnmarshalText(data []byte) error {
 	if len(l) < 7 {
 		return errors.New("invalid timestamp note - too few newlines")
 	}
-	eco := string(l[0])
-	if len(eco) == 0 {
+	origin := string(l[0])
+	if len(origin) == 0 {
 		return errors.New("invalid timestamp note - empty ecosystem")
 	}
 	h := string(l[1])
@@ -110,7 +110,7 @@ func (t *TimestampNote) UnmarshalText(data []byte) error {
 
 	}
 	*t = TimestampNote{
-		Ecosystem:      eco,
+		Origin:         origin,
 		MessageImprint: h,
 		Nonce:          nonce,
 		Time:           timestamp,

pkg/util/timestamp_note_test.go

@@ -55,7 +55,7 @@ func TestMarshalTimestampNote(t *testing.T) {
 		{
 			msg: []byte("bananas"),
 			t: TimestampNote{
-				Ecosystem:    "Timestamp Note v0",
+				Origin:       "Timestamp Note v0",
 				Nonce:        big.NewInt(123).Bytes(),
 				Time:         someTime,
 				Radius:       123,
@@ -66,7 +66,7 @@ func TestMarshalTimestampNote(t *testing.T) {
 		{
 			msg: []byte("the view from the tree tops is great!"),
 			t: TimestampNote{
-				Ecosystem:    "Timestamp Note v1",
+				Origin:       "Timestamp Note v1",
 				Nonce:        big.NewInt(12345678).Bytes(),
 				Time:         someTime,
 				Radius:       1,
@@ -76,7 +76,7 @@ func TestMarshalTimestampNote(t *testing.T) {
 		}, {
 			msg: []byte("bananas"),
 			t: TimestampNote{
-				Ecosystem:    "Timestamp Note v7",
+				Origin:       "Timestamp Note v7",
 				Nonce:        big.NewInt(123).Bytes(),
 				Time:         someTime,
 				Radius:       123,
@@ -86,7 +86,7 @@ func TestMarshalTimestampNote(t *testing.T) {
 			want: "Timestamp Note v7\nsha256:e4ba5cbd251c98e6cd1c23f126a3b81d8d8328abc95387229850952b3ef9f904\new==\n2021-07-26T00:00:00Z\n123\nhttp://localhost:3000/api/v1/timestamp/certchain\nfoo\nbar\n",
 		},
 	} {
-		t.Run(string(test.t.Ecosystem), func(t *testing.T) {
+		t.Run(string(test.t.Origin), func(t *testing.T) {
 			h := sha256.Sum256([]byte(test.msg))
 			test.t.MessageImprint = "sha256:" + hex.EncodeToString(h[:])
 			got, err := test.t.MarshalText()
@@ -120,7 +120,7 @@ func TestUnmarshalTimestampNote(t *testing.T) {
 			desc: "valid one",
 			m:    "Timestamp Note v0\nsha256:e4ba5cbd251c98e6cd1c23f126a3b81d8d8328abc95387229850952b3ef9f904\new==\n2021-07-26T00:00:00Z\n123\nhttp://localhost:3000/api/v1/timestamp/certchain\n",
 			want: TimestampNote{
-				Ecosystem:      "Timestamp Note v0",
+				Origin:         "Timestamp Note v0",
 				MessageImprint: "sha256:e4ba5cbd251c98e6cd1c23f126a3b81d8d8328abc95387229850952b3ef9f904",
 				Nonce:          big.NewInt(123).Bytes(),
 				Time:           someTime,
@@ -132,7 +132,7 @@ func TestUnmarshalTimestampNote(t *testing.T) {
 			desc: "valid with different ecosystem",
 			m:    "Timestamp Note v1\nsha256:17fb2e8cbf5f60f881c075b1fd0cad32913f2f08b35053fed1c5a785dff90e8e\nvGFO\n2021-07-26T00:00:00Z\n1\nhttp://localhost:3000/api/v1/timestamp/certchain\n",
 			want: TimestampNote{
-				Ecosystem:      "Timestamp Note v1",
+				Origin:         "Timestamp Note v1",
 				MessageImprint: "sha256:17fb2e8cbf5f60f881c075b1fd0cad32913f2f08b35053fed1c5a785dff90e8e",
 				Nonce:          big.NewInt(12345678).Bytes(),
 				Time:           someTime,
@@ -143,7 +143,7 @@ func TestUnmarshalTimestampNote(t *testing.T) {
 			desc: "valid with trailing data",
 			m:    "Timestamp Note v7\nsha256:e4ba5cbd251c98e6cd1c23f126a3b81d8d8328abc95387229850952b3ef9f904\new==\n2021-07-26T00:00:00Z\n123\nhttp://localhost:3000/api/v1/timestamp/certchain\nfoo\nbar\n",
 			want: TimestampNote{
-				Ecosystem:      "Timestamp Note v7",
+				Origin:         "Timestamp Note v7",
 				MessageImprint: "sha256:e4ba5cbd251c98e6cd1c23f126a3b81d8d8328abc95387229850952b3ef9f904",
 				Nonce:          big.NewInt(123).Bytes(),
 				Time:           someTime,
@@ -155,7 +155,7 @@ func TestUnmarshalTimestampNote(t *testing.T) {
 			desc: "valid with trailing newlines",
 			m:    "Timestamp Note v1\nsha256:17fb2e8cbf5f60f881c075b1fd0cad32913f2f08b35053fed1c5a785dff90e8e\nvGFO\n2021-07-26T00:00:00Z\n1\nhttp://localhost:3000/api/v1/timestamp/certchain\n\n\n\n",
 			want: TimestampNote{
-				Ecosystem:      "Timestamp Note v1",
+				Origin:         "Timestamp Note v1",
 				MessageImprint: "sha256:17fb2e8cbf5f60f881c075b1fd0cad32913f2f08b35053fed1c5a785dff90e8e",
 				Nonce:          big.NewInt(12345678).Bytes(),
 				Time:           someTime,
@@ -237,7 +237,7 @@ func TestSigningRoundtripTimestampNote(t *testing.T) {
 	}{
 		{
 			t: TimestampNote{
-				Ecosystem:      "Timestamp Note RSA v0",
+				Origin:         "Timestamp Note RSA v0",
 				MessageImprint: "sha256:e4ba5cbd251c98e6cd1c23f126a3b81d8d8328abc95387229850952b3ef9f904",
 				Nonce:          big.NewInt(123).Bytes(),
 				Time:           someTime,
@@ -253,7 +253,7 @@ func TestSigningRoundtripTimestampNote(t *testing.T) {
 		},
 		{
 			t: TimestampNote{
-				Ecosystem:      "Timestamp Note ECDSA v0",
+				Origin:         "Timestamp Note ECDSA v0",
 				MessageImprint: "sha256:e4ba5cbd251c98e6cd1c23f126a3b81d8d8328abc95387229850952b3ef9f904",
 				Nonce:          big.NewInt(123).Bytes(),
 				Time:           someTime,
@@ -269,7 +269,7 @@ func TestSigningRoundtripTimestampNote(t *testing.T) {
 		},
 		{
 			t: TimestampNote{
-				Ecosystem:      "Timestamp Note ED25519 v0",
+				Origin:         "Timestamp Note ED25519 v0",
 				MessageImprint: "sha256:e4ba5cbd251c98e6cd1c23f126a3b81d8d8328abc95387229850952b3ef9f904",
 				Nonce:          big.NewInt(123).Bytes(),
 				Time:           someTime,
@@ -285,7 +285,7 @@ func TestSigningRoundtripTimestampNote(t *testing.T) {
 		},
 		{
 			t: TimestampNote{
-				Ecosystem:      "Timestamp Note Mismatch v0",
+				Origin:         "Timestamp Note Mismatch v0",
 				MessageImprint: "sha256:e4ba5cbd251c98e6cd1c23f126a3b81d8d8328abc95387229850952b3ef9f904",
 				Nonce:          big.NewInt(123).Bytes(),
 				Time:           someTime,
@@ -301,7 +301,7 @@ func TestSigningRoundtripTimestampNote(t *testing.T) {
 		},
 		{
 			t: TimestampNote{
-				Ecosystem:      "Timestamp Note Mismatch v1",
+				Origin:         "Timestamp Note Mismatch v1",
 				MessageImprint: "sha256:e4ba5cbd251c98e6cd1c23f126a3b81d8d8328abc95387229850952b3ef9f904",
 				Nonce:          big.NewInt(123).Bytes(),
 				Time:           someTime,
@@ -317,7 +317,7 @@ func TestSigningRoundtripTimestampNote(t *testing.T) {
 		},
 		{
 			t: TimestampNote{
-				Ecosystem:      "Timestamp Note Mismatch v2",
+				Origin:         "Timestamp Note Mismatch v2",
 				MessageImprint: "sha256:e4ba5cbd251c98e6cd1c23f126a3b81d8d8328abc95387229850952b3ef9f904",
 				Nonce:          big.NewInt(123).Bytes(),
 				Time:           someTime,
@@ -333,7 +333,7 @@ func TestSigningRoundtripTimestampNote(t *testing.T) {
 		},
 		{
 			t: TimestampNote{
-				Ecosystem:      "Timestamp Note Mismatch v3",
+				Origin:         "Timestamp Note Mismatch v3",
 				MessageImprint: "sha256:e4ba5cbd251c98e6cd1c23f126a3b81d8d8328abc95387229850952b3ef9f904",
 				Nonce:          big.NewInt(123).Bytes(),
 				Time:           someTime,
@@ -348,7 +348,7 @@ func TestSigningRoundtripTimestampNote(t *testing.T) {
 			wantVerifyErr: true,
 		},
 	} {
-		t.Run(string(test.t.Ecosystem), func(t *testing.T) {
+		t.Run(string(test.t.Origin), func(t *testing.T) {
 			text, _ := test.t.MarshalText()
 			sc := &SignedNote{
 				Note: string(text),
@@ -416,7 +416,7 @@ func TestInvalidSigVerificationTimestampNote(t *testing.T) {
 	}{
 		{
 			t: TimestampNote{
-				Ecosystem:      "Timestamp Note v0",
+				Origin:         "Timestamp Note v0",
 				MessageImprint: "sha256:e4ba5cbd251c98e6cd1c23f126a3b81d8d8328abc95387229850952b3ef9f904",
 				Nonce:          big.NewInt(123).Bytes(),
 				Time:           someTime,
@@ -429,7 +429,7 @@ func TestInvalidSigVerificationTimestampNote(t *testing.T) {
 		},
 		{
 			t: TimestampNote{
-				Ecosystem:      "Timestamp Note v0 - not base 64",
+				Origin:         "Timestamp Note v0 - not base 64",
 				MessageImprint: "sha256:e4ba5cbd251c98e6cd1c23f126a3b81d8d8328abc95387229850952b3ef9f904",
 				Nonce:          big.NewInt(123).Bytes(),
 				Time:           someTime,
@@ -448,7 +448,7 @@ func TestInvalidSigVerificationTimestampNote(t *testing.T) {
 		},
 		{
 			t: TimestampNote{
-				Ecosystem:      "Timestamp Note v0 invalid signature",
+				Origin:         "Timestamp Note v0 invalid signature",
 				MessageImprint: "sha256:e4ba5cbd251c98e6cd1c23f126a3b81d8d8328abc95387229850952b3ef9f904",
 				Nonce:          big.NewInt(123).Bytes(),
 				Time:           someTime,
@@ -466,7 +466,7 @@ func TestInvalidSigVerificationTimestampNote(t *testing.T) {
 			expectedResult: false,
 		},
 	} {
-		t.Run(string(test.t.Ecosystem), func(t *testing.T) {
+		t.Run(string(test.t.Origin), func(t *testing.T) {
 			text, _ := test.t.MarshalText()
 			sc := SignedNote{
 				Note:       string(text),