20980769578

Committed 14 Jan 2026 03:02AM UTC coverage: 95.626% (-0.03%) from 95.658%

Build # 20980769578

Build Type

push

github

Committed by

web-flow

Commit Message

Rename decodeX to xDecoder (#214)

Run Details

412 of 419 branches covered (98.33%)

Branch coverage included in aggregate %.

165 of 169 new or added lines in 50 files covered. (97.63%)

3 existing lines in 2 files now uncovered.

2277 of 2393 relevant lines covered (95.15%)

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96.97

/src/leafNode.ts

import { Capabilities, capabilitiesEncoder, capabilitiesDecoder } from "./capabilities.js"
import { uint32Decoder, uint32Encoder } from "./codec/number.js"
import { Decoder, mapDecoders, flatMapDecoder, mapDecoderOption, mapDecoder } from "./codec/tlsDecoder.js"
import { BufferEncoder, contramapBufferEncoders, encode } from "./codec/tlsEncoder.js"
import { varLenDataEncoder, varLenDataDecoder, varLenTypeEncoder, varLenTypeDecoder } from "./codec/variableLength.js"
import { credentialEncoder, credentialDecoder, Credential } from "./credential.js"
import { Signature, signWithLabel, verifyWithLabel } from "./crypto/signature.js"
import { Extension, extensionEncoder, extensionDecoder } from "./extension.js"
import { leafNodeSources, leafNodeSourceValueDecoder, leafNodeSourceValueEncoder } from "./leafNodeSource.js"
import { Lifetime, lifetimeEncoder, lifetimeDecoder } from "./lifetime.js"

/** @public */
export interface LeafNodeData {
  hpkePublicKey: Uint8Array
  signaturePublicKey: Uint8Array
  credential: Credential
  capabilities: Capabilities
}

export const leafNodeDataEncoder: BufferEncoder<LeafNodeData> = contramapBufferEncoders(
  [varLenDataEncoder, varLenDataEncoder, credentialEncoder, capabilitiesEncoder],
  (data) => [data.hpkePublicKey, data.signaturePublicKey, data.credential, data.capabilities] as const,
)

export const leafNodeDataDecoder: Decoder<LeafNodeData> = mapDecoders(
  [varLenDataDecoder, varLenDataDecoder, credentialDecoder, capabilitiesDecoder],
  (hpkePublicKey, signaturePublicKey, credential, capabilities) => ({
    hpkePublicKey,
    signaturePublicKey,
    credential,
    capabilities,
  }),
)

/** @public */
export type LeafNodeInfoOmitted = LeafNodeInfoKeyPackage | LeafNodeInfoUpdateOmitted | LeafNodeInfoCommitOmitted

/** @public */
export interface LeafNodeInfoUpdateOmitted {
  leafNodeSource: typeof leafNodeSources.update
  extensions: Extension[]
}

/** @public */
export interface LeafNodeInfoCommitOmitted {
  leafNodeSource: typeof leafNodeSources.commit
  parentHash: Uint8Array
  extensions: Extension[]
}

/** @public */
export interface LeafNodeInfoKeyPackage {
  leafNodeSource: typeof leafNodeSources.key_package
  lifetime: Lifetime
  extensions: Extension[]
}

export const leafNodeInfoKeyPackageEncoder: BufferEncoder<LeafNodeInfoKeyPackage> = contramapBufferEncoders(
  [leafNodeSourceValueEncoder, lifetimeEncoder, varLenTypeEncoder(extensionEncoder)],
  (info) => [leafNodeSources.key_package, info.lifetime, info.extensions] as const,
)

export const leafNodeInfoUpdateOmittedEncoder: BufferEncoder<LeafNodeInfoUpdateOmitted> = contramapBufferEncoders(
  [leafNodeSourceValueEncoder, varLenTypeEncoder(extensionEncoder)],
  (i) => [i.leafNodeSource, i.extensions] as const,
)

export const leafNodeInfoCommitOmittedEncoder: BufferEncoder<LeafNodeInfoCommitOmitted> = contramapBufferEncoders(
  [leafNodeSourceValueEncoder, varLenDataEncoder, varLenTypeEncoder(extensionEncoder)],
  (info) => [info.leafNodeSource, info.parentHash, info.extensions] as const,
)

export const leafNodeInfoOmittedEncoder: BufferEncoder<LeafNodeInfoOmitted> = (info) => {
  switch (info.leafNodeSource) {
    case leafNodeSources.key_package:
      return leafNodeInfoKeyPackageEncoder(info)
    case leafNodeSources.update:
      return leafNodeInfoUpdateOmittedEncoder(info)
    case leafNodeSources.commit:
      return leafNodeInfoCommitOmittedEncoder(info)
  }
}

export const leafNodeInfoKeyPackageDecoder: Decoder<LeafNodeInfoKeyPackage> = mapDecoders(
  [lifetimeDecoder, varLenTypeDecoder(extensionDecoder)],
  (lifetime, extensions) => ({
    leafNodeSource: leafNodeSources.key_package,
    lifetime,
    extensions,
  }),
)

export const leafNodeInfoUpdateOmittedDecoder: Decoder<LeafNodeInfoUpdateOmitted> = mapDecoder(
  varLenTypeDecoder(extensionDecoder),
  (extensions) => ({
    leafNodeSource: leafNodeSources.update,
    extensions,
  }),
)

export const leafNodeInfoCommitOmittedDecoder: Decoder<LeafNodeInfoCommitOmitted> = mapDecoders(
  [varLenDataDecoder, varLenTypeDecoder(extensionDecoder)],
  (parentHash, extensions) => ({
    leafNodeSource: leafNodeSources.commit,
    parentHash,
    extensions,
  }),
)

export const leafNodeInfoOmittedDecoder: Decoder<LeafNodeInfoOmitted> = flatMapDecoder(
  leafNodeSourceValueDecoder,
  (leafNodeSource): Decoder<LeafNodeInfoOmitted> => {
    switch (leafNodeSource) {
      case leafNodeSources.key_package:
        return leafNodeInfoKeyPackageDecoder
      case leafNodeSources.update:
        return leafNodeInfoUpdateOmittedDecoder
      case leafNodeSources.commit:
        return leafNodeInfoCommitOmittedDecoder
    }
  },
)

export type LeafNodeInfo = LeafNodeInfoKeyPackage | LeafNodeInfoUpdate | LeafNodeInfoCommit

export type LeafNodeInfoUpdate = LeafNodeInfoUpdateOmitted & {
  groupId: Uint8Array
  leafIndex: number
}
export type LeafNodeInfoCommit = LeafNodeInfoCommitOmitted & {
  groupId: Uint8Array
  leafIndex: number
}

export const leafNodeInfoUpdateEncoder: BufferEncoder<LeafNodeInfoUpdate> = contramapBufferEncoders(
  [leafNodeInfoUpdateOmittedEncoder, varLenDataEncoder, uint32Encoder],
  (i) => [i, i.groupId, i.leafIndex] as const,
)

export const leafNodeInfoCommitEncoder: BufferEncoder<LeafNodeInfoCommit> = contramapBufferEncoders(
  [leafNodeInfoCommitOmittedEncoder, varLenDataEncoder, uint32Encoder],
  (info) => [info, info.groupId, info.leafIndex] as const,
)

export const leafNodeInfoEncoder: BufferEncoder<LeafNodeInfo> = (info) => {
  switch (info.leafNodeSource) {
    case leafNodeSources.key_package:
      return leafNodeInfoKeyPackageEncoder(info)
    case leafNodeSources.update:
      return leafNodeInfoUpdateEncoder(info)
    case leafNodeSources.commit:
      return leafNodeInfoCommitEncoder(info)
  }
}

export const leafNodeInfoUpdateDecoder: Decoder<LeafNodeInfoUpdate> = mapDecoders(
  [leafNodeInfoUpdateOmittedDecoder, varLenDataDecoder, uint32Decoder],
  (ln, groupId, leafIndex) => ({
    ...ln,
    groupId,
    leafIndex,
  }),
)

export const leafNodeInfoCommitDecoder: Decoder<LeafNodeInfoCommit> = mapDecoders(
  [leafNodeInfoCommitOmittedDecoder, varLenDataDecoder, uint32Decoder],
  (ln, groupId, leafIndex) => ({
    ...ln,
    groupId,
    leafIndex,
  }),
)

export type LeafNodeTBS = LeafNodeData & LeafNodeInfo

export type LeafNodeTBSCommit = LeafNodeData & LeafNodeInfoCommit

export type LeafNodeTBSKeyPackage = LeafNodeData & LeafNodeInfoKeyPackage

export const leafNodeTBSEncoder: BufferEncoder<LeafNodeTBS> = contramapBufferEncoders(
  [leafNodeDataEncoder, leafNodeInfoEncoder],
  (tbs) => [tbs, tbs] as const,
)

/** @public */
export type LeafNode = LeafNodeData & LeafNodeInfoOmitted & { signature: Uint8Array }

export const leafNodeEncoder: BufferEncoder<LeafNode> = contramapBufferEncoders(
  [leafNodeDataEncoder, leafNodeInfoOmittedEncoder, varLenDataEncoder],
  (leafNode) => [leafNode, leafNode, leafNode.signature] as const,
)

export const leafNodeDecoder: Decoder<LeafNode> = mapDecoders(
  [leafNodeDataDecoder, leafNodeInfoOmittedDecoder, varLenDataDecoder],
  (data, info, signature) => ({
    ...data,
    ...info,
    signature,
  }),
)

/** @public */
export type LeafNodeKeyPackage = LeafNode & { leafNodeSource: typeof leafNodeSources.key_package }

export const leafNodeKeyPackageDecoder: Decoder<LeafNodeKeyPackage> = mapDecoderOption(leafNodeDecoder, (ln) =>
  ln.leafNodeSource === leafNodeSources.key_package ? ln : undefined,
)

/** @public */
export type LeafNodeCommit = LeafNode & { leafNodeSource: typeof leafNodeSources.commit }

export const leafNodeCommitDecoder: Decoder<LeafNodeCommit> = mapDecoderOption(leafNodeDecoder, (ln) =>
  ln.leafNodeSource === leafNodeSources.commit ? ln : undefined,
)

/** @public */
export type LeafNodeUpdate = LeafNode & { leafNodeSource: typeof leafNodeSources.update }

export const leafNodeUpdateDecoder: Decoder<LeafNodeUpdate> = mapDecoderOption(leafNodeDecoder, (ln) =>
  ln.leafNodeSource === leafNodeSources.update ? ln : undefined,
)

function toTbs(leafNode: LeafNode, groupId: Uint8Array, leafIndex: number): LeafNodeTBS {
  switch (leafNode.leafNodeSource) {
    case leafNodeSources.key_package:
      return { ...leafNode, leafNodeSource: leafNode.leafNodeSource }
    case leafNodeSources.update:
      return { ...leafNode, leafNodeSource: leafNode.leafNodeSource, groupId, leafIndex }
    case leafNodeSources.commit:
      return { ...leafNode, leafNodeSource: leafNode.leafNodeSource, groupId, leafIndex }
  }
}

export async function signLeafNodeCommit(
  tbs: LeafNodeTBSCommit,
  signaturePrivateKey: Uint8Array,
  sig: Signature,
): Promise<LeafNodeCommit> {
  return {
    ...tbs,
    signature: await signWithLabel(signaturePrivateKey, "LeafNodeTBS", encode(leafNodeTBSEncoder, tbs), sig),
  }
}

export async function signLeafNodeKeyPackage(
  tbs: LeafNodeTBSKeyPackage,
  signaturePrivateKey: Uint8Array,
  sig: Signature,
): Promise<LeafNodeKeyPackage> {
  return {
    ...tbs,
    signature: await signWithLabel(signaturePrivateKey, "LeafNodeTBS", encode(leafNodeTBSEncoder, tbs), sig),
  }
}

export function verifyLeafNodeSignature(
  leaf: LeafNode,
  groupId: Uint8Array,
  leafIndex: number,
  sig: Signature,
): Promise<boolean> {
  return verifyWithLabel(
    leaf.signaturePublicKey,
    "LeafNodeTBS",
    encode(leafNodeTBSEncoder, toTbs(leaf, groupId, leafIndex)),
    leaf.signature,
    sig,
  )
}

export function verifyLeafNodeSignatureKeyPackage(leaf: LeafNodeKeyPackage, sig: Signature): Promise<boolean> {
  return verifyWithLabel(leaf.signaturePublicKey, "LeafNodeTBS", encode(leafNodeTBSEncoder, leaf), leaf.signature, sig)
}

1	import { Capabilities, capabilitiesEncoder, capabilitiesDecoder } from "./capabilities.js"
2	import { uint32Decoder, uint32Encoder } from "./codec/number.js"
3	import { Decoder, mapDecoders, flatMapDecoder, mapDecoderOption, mapDecoder } from "./codec/tlsDecoder.js"
4	import { BufferEncoder, contramapBufferEncoders, encode } from "./codec/tlsEncoder.js"
5	import { varLenDataEncoder, varLenDataDecoder, varLenTypeEncoder, varLenTypeDecoder } from "./codec/variableLength.js"
6	import { credentialEncoder, credentialDecoder, Credential } from "./credential.js"
7	import { Signature, signWithLabel, verifyWithLabel } from "./crypto/signature.js"
8	import { Extension, extensionEncoder, extensionDecoder } from "./extension.js"
9	import { leafNodeSources, leafNodeSourceValueDecoder, leafNodeSourceValueEncoder } from "./leafNodeSource.js"
10	import { Lifetime, lifetimeEncoder, lifetimeDecoder } from "./lifetime.js"
11
12	/** @public */
13	export interface LeafNodeData {
14	hpkePublicKey: Uint8Array
15	signaturePublicKey: Uint8Array
16	credential: Credential
17	capabilities: Capabilities
18	}
19
20	export const leafNodeDataEncoder: BufferEncoder<LeafNodeData> = contramapBufferEncoders(	3✔
21	[varLenDataEncoder, varLenDataEncoder, credentialEncoder, capabilitiesEncoder],
22	(data) => [data.hpkePublicKey, data.signaturePublicKey, data.credential, data.capabilities] as const,	92,952✔
23	)
24
25	export const leafNodeDataDecoder: Decoder<LeafNodeData> = mapDecoders(	3✔
26	[varLenDataDecoder, varLenDataDecoder, credentialDecoder, capabilitiesDecoder],
27	(hpkePublicKey, signaturePublicKey, credential, capabilities) => ({	4,730✔
28	hpkePublicKey,
29	signaturePublicKey,
30	credential,
31	capabilities,
32	}),
33	)
34
35	/** @public */
36	export type LeafNodeInfoOmitted = LeafNodeInfoKeyPackage \| LeafNodeInfoUpdateOmitted \| LeafNodeInfoCommitOmitted
37
38	/** @public */
39	export interface LeafNodeInfoUpdateOmitted {
40	leafNodeSource: typeof leafNodeSources.update
41	extensions: Extension[]
42	}
43
44	/** @public */
45	export interface LeafNodeInfoCommitOmitted {
46	leafNodeSource: typeof leafNodeSources.commit
47	parentHash: Uint8Array
48	extensions: Extension[]
49	}
50
51	/** @public */
52	export interface LeafNodeInfoKeyPackage {
53	leafNodeSource: typeof leafNodeSources.key_package
54	lifetime: Lifetime
55	extensions: Extension[]
56	}
57
58	export const leafNodeInfoKeyPackageEncoder: BufferEncoder<LeafNodeInfoKeyPackage> = contramapBufferEncoders(	3✔
59	[leafNodeSourceValueEncoder, lifetimeEncoder, varLenTypeEncoder(extensionEncoder)],
60	(info) => [leafNodeSources.key_package, info.lifetime, info.extensions] as const,	55,868✔
61	)
62
63	export const leafNodeInfoUpdateOmittedEncoder: BufferEncoder<LeafNodeInfoUpdateOmitted> = contramapBufferEncoders(	3✔
64	[leafNodeSourceValueEncoder, varLenTypeEncoder(extensionEncoder)],
65	(i) => [i.leafNodeSource, i.extensions] as const,	401✔
66	)
67
68	export const leafNodeInfoCommitOmittedEncoder: BufferEncoder<LeafNodeInfoCommitOmitted> = contramapBufferEncoders(	3✔
69	[leafNodeSourceValueEncoder, varLenDataEncoder, varLenTypeEncoder(extensionEncoder)],
70	(info) => [info.leafNodeSource, info.parentHash, info.extensions] as const,	65,975✔
71	)
72
73	export const leafNodeInfoOmittedEncoder: BufferEncoder<LeafNodeInfoOmitted> = (info) => {	3✔
74	switch (info.leafNodeSource) {	130,621✔
75	case leafNodeSources.key_package:
76	return leafNodeInfoKeyPackageEncoder(info)	64,521✔
77	case leafNodeSources.update:
78	return leafNodeInfoUpdateOmittedEncoder(info)	387✔
79	case leafNodeSources.commit:
80	return leafNodeInfoCommitOmittedEncoder(info)	65,713✔
81	}
82	}
83
84	export const leafNodeInfoKeyPackageDecoder: Decoder<LeafNodeInfoKeyPackage> = mapDecoders(	3✔
85	[lifetimeDecoder, varLenTypeDecoder(extensionDecoder)],
86	(lifetime, extensions) => ({	2,440✔
87	leafNodeSource: leafNodeSources.key_package,
88	lifetime,
89	extensions,
90	}),
91	)
92
93	export const leafNodeInfoUpdateOmittedDecoder: Decoder<LeafNodeInfoUpdateOmitted> = mapDecoder(	3✔
94	varLenTypeDecoder(extensionDecoder),
95	(extensions) => ({	316✔
96	leafNodeSource: leafNodeSources.update,
97	extensions,
98	}),
99	)
100
101	export const leafNodeInfoCommitOmittedDecoder: Decoder<LeafNodeInfoCommitOmitted> = mapDecoders(	3✔
102	[varLenDataDecoder, varLenTypeDecoder(extensionDecoder)],
103	(parentHash, extensions) => ({	3,597✔
104	leafNodeSource: leafNodeSources.commit,
105	parentHash,
106	extensions,
107	}),
108	)
109
110	export const leafNodeInfoOmittedDecoder: Decoder<LeafNodeInfoOmitted> = flatMapDecoder(	3✔
111	leafNodeSourceValueDecoder,
112	(leafNodeSource): Decoder<LeafNodeInfoOmitted> => {
113	switch (leafNodeSource) {	11,213✔
114	case leafNodeSources.key_package:
115	return leafNodeInfoKeyPackageDecoder	6,343✔
116	case leafNodeSources.update:
117	return leafNodeInfoUpdateOmittedDecoder	316✔
118	case leafNodeSources.commit:
119	return leafNodeInfoCommitOmittedDecoder	4,554✔
120	}
121	},
122	)
123
124	export type LeafNodeInfo = LeafNodeInfoKeyPackage \| LeafNodeInfoUpdate \| LeafNodeInfoCommit
125
126	export type LeafNodeInfoUpdate = LeafNodeInfoUpdateOmitted & {
127	groupId: Uint8Array
128	leafIndex: number
129	}
130	export type LeafNodeInfoCommit = LeafNodeInfoCommitOmitted & {
131	groupId: Uint8Array
132	leafIndex: number
133	}
134
135	export const leafNodeInfoUpdateEncoder: BufferEncoder<LeafNodeInfoUpdate> = contramapBufferEncoders(	3✔
136	[leafNodeInfoUpdateOmittedEncoder, varLenDataEncoder, uint32Encoder],
137	(i) => [i, i.groupId, i.leafIndex] as const,	14✔
138	)
139
140	export const leafNodeInfoCommitEncoder: BufferEncoder<LeafNodeInfoCommit> = contramapBufferEncoders(	3✔
141	[leafNodeInfoCommitOmittedEncoder, varLenDataEncoder, uint32Encoder],
142	(info) => [info, info.groupId, info.leafIndex] as const,	4,590✔
143	)
144
145	export const leafNodeInfoEncoder: BufferEncoder<LeafNodeInfo> = (info) => {	3✔
146	switch (info.leafNodeSource) {	14,317✔
147	case leafNodeSources.key_package:
148	return leafNodeInfoKeyPackageEncoder(info)	9,713✔
149	case leafNodeSources.update:
150	return leafNodeInfoUpdateEncoder(info)	14✔
151	case leafNodeSources.commit:
152	return leafNodeInfoCommitEncoder(info)	4,590✔
153	}
154	}
155
156	export const leafNodeInfoUpdateDecoder: Decoder<LeafNodeInfoUpdate> = mapDecoders(	3✔
157	[leafNodeInfoUpdateOmittedDecoder, varLenDataDecoder, uint32Decoder],
UNCOV 158	(ln, groupId, leafIndex) => ({	×
159	...ln,
160	groupId,
161	leafIndex,
162	}),
163	)
164
165	export const leafNodeInfoCommitDecoder: Decoder<LeafNodeInfoCommit> = mapDecoders(	3✔
166	[leafNodeInfoCommitOmittedDecoder, varLenDataDecoder, uint32Decoder],
UNCOV 167	(ln, groupId, leafIndex) => ({	×
168	...ln,
169	groupId,
170	leafIndex,
171	}),
172	)
173
174	export type LeafNodeTBS = LeafNodeData & LeafNodeInfo
175
176	export type LeafNodeTBSCommit = LeafNodeData & LeafNodeInfoCommit
177
178	export type LeafNodeTBSKeyPackage = LeafNodeData & LeafNodeInfoKeyPackage
179
180	export const leafNodeTBSEncoder: BufferEncoder<LeafNodeTBS> = contramapBufferEncoders(	3✔
181	[leafNodeDataEncoder, leafNodeInfoEncoder],
182	(tbs) => [tbs, tbs] as const,	2,494✔
183	)
184
185	/** @public */
186	export type LeafNode = LeafNodeData & LeafNodeInfoOmitted & { signature: Uint8Array }
187
188	export const leafNodeEncoder: BufferEncoder<LeafNode> = contramapBufferEncoders(	3✔
189	[leafNodeDataEncoder, leafNodeInfoOmittedEncoder, varLenDataEncoder],
190	(leafNode) => [leafNode, leafNode, leafNode.signature] as const,	83,498✔
191	)
192
193	export const leafNodeDecoder: Decoder<LeafNode> = mapDecoders(	3✔
194	[leafNodeDataDecoder, leafNodeInfoOmittedDecoder, varLenDataDecoder],
195	(data, info, signature) => ({	3,547✔
196	...data,
197	...info,
198	signature,
199	}),
200	)
201
202	/** @public */
203	export type LeafNodeKeyPackage = LeafNode & { leafNodeSource: typeof leafNodeSources.key_package }
204
205	export const leafNodeKeyPackageDecoder: Decoder<LeafNodeKeyPackage> = mapDecoderOption(leafNodeDecoder, (ln) =>	3✔
206	ln.leafNodeSource === leafNodeSources.key_package ? ln : undefined,	3,094✔
207	)
208
209	/** @public */
210	export type LeafNodeCommit = LeafNode & { leafNodeSource: typeof leafNodeSources.commit }
211
212	export const leafNodeCommitDecoder: Decoder<LeafNodeCommit> = mapDecoderOption(leafNodeDecoder, (ln) =>	3✔
213	ln.leafNodeSource === leafNodeSources.commit ? ln : undefined,	2,987✔
214	)
215
216	/** @public */
217	export type LeafNodeUpdate = LeafNode & { leafNodeSource: typeof leafNodeSources.update }
218
219	export const leafNodeUpdateDecoder: Decoder<LeafNodeUpdate> = mapDecoderOption(leafNodeDecoder, (ln) =>	3✔
220	ln.leafNodeSource === leafNodeSources.update ? ln : undefined,	315✔
221	)
222
223	function toTbs(leafNode: LeafNode, groupId: Uint8Array, leafIndex: number): LeafNodeTBS {
224	switch (leafNode.leafNodeSource) {	3,584✔
225	case leafNodeSources.key_package:
226	return { ...leafNode, leafNodeSource: leafNode.leafNodeSource }	119✔
227	case leafNodeSources.update:
228	return { ...leafNode, leafNodeSource: leafNode.leafNodeSource, groupId, leafIndex }	14✔
229	case leafNodeSources.commit:
230	return { ...leafNode, leafNodeSource: leafNode.leafNodeSource, groupId, leafIndex }	3,451✔
231	}
232	}
233
234	export async function signLeafNodeCommit(
235	tbs: LeafNodeTBSCommit,
236	signaturePrivateKey: Uint8Array,
237	sig: Signature,
238	): Promise<LeafNodeCommit> {
239	return {	1,120✔
240	...tbs,
241	signature: await signWithLabel(signaturePrivateKey, "LeafNodeTBS", encode(leafNodeTBSEncoder, tbs), sig),
242	}
243	}
244
245	export async function signLeafNodeKeyPackage(
246	tbs: LeafNodeTBSKeyPackage,
247	signaturePrivateKey: Uint8Array,
248	sig: Signature,
249	): Promise<LeafNodeKeyPackage> {
250	return {	1,301✔
251	...tbs,
252	signature: await signWithLabel(signaturePrivateKey, "LeafNodeTBS", encode(leafNodeTBSEncoder, tbs), sig),
253	}
254	}
255
256	export function verifyLeafNodeSignature(
257	leaf: LeafNode,
258	groupId: Uint8Array,
259	leafIndex: number,
260	sig: Signature,
261	): Promise<boolean> {
262	return verifyWithLabel(	3,584✔
263	leaf.signaturePublicKey,
264	"LeafNodeTBS",
265	encode(leafNodeTBSEncoder, toTbs(leaf, groupId, leafIndex)),
266	leaf.signature,
267	sig,
268	)
269	}
270
271	export function verifyLeafNodeSignatureKeyPackage(leaf: LeafNodeKeyPackage, sig: Signature): Promise<boolean> {
272	return verifyWithLabel(leaf.signaturePublicKey, "LeafNodeTBS", encode(leafNodeTBSEncoder, leaf), leaf.signature, sig)	5,835✔
273	}

LukaJCB / ts-mls / 20980769578

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