선택적 공개 기능을 시연하기 위해, 테스트 벡터를 발급자가 생성하는 것(기본 증명)과
보유자가 생성하는 것(파생 증명)에 기반하여 두 그룹으로 나눈다.
문서에 선택적 공개 기본 증명을 추가하기 위해 발급자는 다음 암호화 키 자료가 필요하다:
-
The issuers private/public key pair, i.e., the key pair corresponding to the
verification method that will be part of the proof.
-
A per proof private/public key pair created by the issuer just for this proof.
This is an ephemeral, single use key pair where the private key is not kept
after the proof has been generated.
-
An HMAC key. This used to randomize the order of the blank node ids to avoid
potential information leakage from the blank node id ordering. This is used only
once and is shared between issuer and holder. The HMAC in this case is
functioning as a pseudorandom function (PRF).
기본 증명 추가 테스트 벡터를 생성하는 데 사용되는 키 자료를 아래에 나타낸다. P-256 키
쌍에는 Multibase 표현이 사용되고 HMAC 키는 16진 문자열로 주어진다.
{
"baseKeyPair": {
"publicKeyMultibase": "zDnaepBuvsQ8cpsWrVKw8fbpGpvPeNSjVPTWoq6cRqaYzBKVP",
"secretKeyMultibase": "z42twTcNeSYcnqg1FLuSFs2bsGH3ZqbRHFmvS9XMsYhjxvHN"
},
"proofKeyPair": {
"publicKeyMultibase": "zDnaeTHfhmSaQKBc7CmdL3K7oYg3D6SC7yowe2eBeVd2DH32r",
"secretKeyMultibase": "z42tqvNGyzyXRzotAYn43UhcFtzDUVdxJ7461fwrfhBPLmfY"
},
"hmacKeyString": "00112233445566778899AABBCCDDEEFF00112233445566778899AABBCCDDEEFF"
}
우리 시나리오에서는 아래와 같이 어떤 사람에게 취업 허가 문서가 발급된다.
{
"@context": [
"https://www.w3.org/ns/credentials/v2",
"https://w3id.org/citizenship/v4rc1"
],
"type": [
"VerifiableCredential",
"EmploymentAuthorizationDocumentCredential"
],
"issuer": {
"id": "did:key:zDnaegE6RR3atJtHKwTRTWHsJ3kNHqFwv7n9YjTgmU7TyfU76",
"image": "data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVQIW2NgUPr/HwADaAIhG61j/AAAAABJRU5ErkJggg=="
},
"credentialSubject": {
"type": [
"Person",
"EmployablePerson"
],
"givenName": "JOHN",
"additionalName": "JACOB",
"familyName": "SMITH",
"image": "data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVQIW2Ng+M/wHwAEAQH/7yMK/gAAAABJRU5ErkJggg==",
"gender": "Male",
"residentSince": "2015-01-01",
"birthCountry": "Bahamas",
"birthDate": "1999-07-17",
"employmentAuthorizationDocument": {
"type": "EmploymentAuthorizationDocument",
"identifier": "83627465",
"lprCategory": "C09",
"lprNumber": "999-999-999"
}
},
"name": "Employment Authorization Document",
"description": "Example Employment Authorization Document.",
"validFrom": "2019-12-03T00:00:00Z",
"validUntil": "2029-12-03T00:00:00Z"
}
발급자가 지정한 필수 정보는 아래와 같이 JSON 포인터 배열을 통해 지정된다.
위 JSON 포인터를 취업 허가 문서에 적용한 결과를 아래에 나타낸다.
[
{
"pointer": "/issuer",
"value": {
"id": "did:key:zDnaegE6RR3atJtHKwTRTWHsJ3kNHqFwv7n9YjTgmU7TyfU76",
"image": "data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVQIW2NgUPr/HwADaAIhG61j/AAAAABJRU5ErkJggg=="
}
}
]
서명되지 않은 문서의 변환은 아래와 같이 문서를 정규화하는 것으로 시작한다.
[
"<did:key:zDnaegE6RR3atJtHKwTRTWHsJ3kNHqFwv7n9YjTgmU7TyfU76> <https://schema.org/image> <data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVQIW2NgUPr/HwADaAIhG61j/AAAAABJRU5ErkJggg==> .\n",
"_:c14n0 <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <https://w3id.org/citizenship#EmploymentAuthorizationDocumentCredential> .\n",
"_:c14n0 <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <https://www.w3.org/2018/credentials#VerifiableCredential> .\n",
"_:c14n0 <https://schema.org/description> \"Example Employment Authorization Document.\" .\n",
"_:c14n0 <https://schema.org/name> \"Employment Authorization Document\" .\n",
"_:c14n0 <https://www.w3.org/2018/credentials#credentialSubject> _:c14n1 .\n",
"_:c14n0 <https://www.w3.org/2018/credentials#issuer> <did:key:zDnaegE6RR3atJtHKwTRTWHsJ3kNHqFwv7n9YjTgmU7TyfU76> .\n",
"_:c14n0 <https://www.w3.org/2018/credentials#validFrom> \"2019-12-03T00:00:00Z\"^^<http://www.w3.org/2001/XMLSchema#dateTime> .\n",
"_:c14n0 <https://www.w3.org/2018/credentials#validUntil> \"2029-12-03T00:00:00Z\"^^<http://www.w3.org/2001/XMLSchema#dateTime> .\n",
"_:c14n1 <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <https://schema.org/Person> .\n",
"_:c14n1 <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <https://w3id.org/citizenship#EmployablePerson> .\n",
"_:c14n1 <https://schema.org/additionalName> \"JACOB\" .\n",
"_:c14n1 <https://schema.org/birthDate> \"1999-07-17\"^^<http://www.w3.org/2001/XMLSchema#dateTime> .\n",
"_:c14n1 <https://schema.org/familyName> \"SMITH\" .\n",
"_:c14n1 <https://schema.org/gender> \"Male\" .\n",
"_:c14n1 <https://schema.org/givenName> \"JOHN\" .\n",
"_:c14n1 <https://schema.org/image> <data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVQIW2Ng+M/wHwAEAQH/7yMK/gAAAABJRU5ErkJggg==> .\n",
"_:c14n1 <https://w3id.org/citizenship#birthCountry> \"Bahamas\" .\n",
"_:c14n1 <https://w3id.org/citizenship#employmentAuthorizationDocument> _:c14n2 .\n",
"_:c14n1 <https://w3id.org/citizenship#residentSince> \"2015-01-01\"^^<http://www.w3.org/2001/XMLSchema#dateTime> .\n",
"_:c14n2 <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <https://w3id.org/citizenship#EmploymentAuthorizationDocument> .\n",
"_:c14n2 <https://schema.org/identifier> \"83627465\" .\n",
"_:c14n2 <https://w3id.org/citizenship#lprCategory> \"C09\" .\n",
"_:c14n2 <https://w3id.org/citizenship#lprNumber> \"999-999-999\" .\n"
]
공백 노드 id의 순서로부터 발생할 수 있는 정보 유출을 방지하기 위해, 이들은 PRF, 즉
HMAC를 통해 처리되어 아래에 나타난 정규화된 HMAC 문서를 만든다. 이는 필수 및 선택적
공개의 대상이 될 문의 정렬된 목록을 나타내며, 즉 문이 그룹화되는 것은 이 목록으로부터이다.
[
"<did:key:zDnaegE6RR3atJtHKwTRTWHsJ3kNHqFwv7n9YjTgmU7TyfU76> <https://schema.org/image> <data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVQIW2NgUPr/HwADaAIhG61j/AAAAABJRU5ErkJggg==> .\n",
"_:u3Lv2QpFgo-YAegc1cQQKWJFW2sEjQF6FfuZ0VEoMKHg <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <https://schema.org/Person> .\n",
"_:u3Lv2QpFgo-YAegc1cQQKWJFW2sEjQF6FfuZ0VEoMKHg <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <https://w3id.org/citizenship#EmployablePerson> .\n",
"_:u3Lv2QpFgo-YAegc1cQQKWJFW2sEjQF6FfuZ0VEoMKHg <https://schema.org/additionalName> \"JACOB\" .\n",
"_:u3Lv2QpFgo-YAegc1cQQKWJFW2sEjQF6FfuZ0VEoMKHg <https://schema.org/birthDate> \"1999-07-17\"^^<http://www.w3.org/2001/XMLSchema#dateTime> .\n",
"_:u3Lv2QpFgo-YAegc1cQQKWJFW2sEjQF6FfuZ0VEoMKHg <https://schema.org/familyName> \"SMITH\" .\n",
"_:u3Lv2QpFgo-YAegc1cQQKWJFW2sEjQF6FfuZ0VEoMKHg <https://schema.org/gender> \"Male\" .\n",
"_:u3Lv2QpFgo-YAegc1cQQKWJFW2sEjQF6FfuZ0VEoMKHg <https://schema.org/givenName> \"JOHN\" .\n",
"_:u3Lv2QpFgo-YAegc1cQQKWJFW2sEjQF6FfuZ0VEoMKHg <https://schema.org/image> <data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVQIW2Ng+M/wHwAEAQH/7yMK/gAAAABJRU5ErkJggg==> .\n",
"_:u3Lv2QpFgo-YAegc1cQQKWJFW2sEjQF6FfuZ0VEoMKHg <https://w3id.org/citizenship#birthCountry> \"Bahamas\" .\n",
"_:u3Lv2QpFgo-YAegc1cQQKWJFW2sEjQF6FfuZ0VEoMKHg <https://w3id.org/citizenship#employmentAuthorizationDocument> _:uVkUuBrlOaELGVQWJD4M_qW5bcKEHWGNbOrPA_qAOKKw .\n",
"_:u3Lv2QpFgo-YAegc1cQQKWJFW2sEjQF6FfuZ0VEoMKHg <https://w3id.org/citizenship#residentSince> \"2015-01-01\"^^<http://www.w3.org/2001/XMLSchema#dateTime> .\n",
"_:u4YIOZn1MHES1Z4Ij2hWZG3R4dEYBqg5fHTyDEvYhC38 <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <https://w3id.org/citizenship#EmploymentAuthorizationDocumentCredential> .\n",
"_:u4YIOZn1MHES1Z4Ij2hWZG3R4dEYBqg5fHTyDEvYhC38 <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <https://www.w3.org/2018/credentials#VerifiableCredential> .\n",
"_:u4YIOZn1MHES1Z4Ij2hWZG3R4dEYBqg5fHTyDEvYhC38 <https://schema.org/description> \"Example Employment Authorization Document.\" .\n",
"_:u4YIOZn1MHES1Z4Ij2hWZG3R4dEYBqg5fHTyDEvYhC38 <https://schema.org/name> \"Employment Authorization Document\" .\n",
"_:u4YIOZn1MHES1Z4Ij2hWZG3R4dEYBqg5fHTyDEvYhC38 <https://www.w3.org/2018/credentials#credentialSubject> _:u3Lv2QpFgo-YAegc1cQQKWJFW2sEjQF6FfuZ0VEoMKHg .\n",
"_:u4YIOZn1MHES1Z4Ij2hWZG3R4dEYBqg5fHTyDEvYhC38 <https://www.w3.org/2018/credentials#issuer> <did:key:zDnaegE6RR3atJtHKwTRTWHsJ3kNHqFwv7n9YjTgmU7TyfU76> .\n",
"_:u4YIOZn1MHES1Z4Ij2hWZG3R4dEYBqg5fHTyDEvYhC38 <https://www.w3.org/2018/credentials#validFrom> \"2019-12-03T00:00:00Z\"^^<http://www.w3.org/2001/XMLSchema#dateTime> .\n",
"_:u4YIOZn1MHES1Z4Ij2hWZG3R4dEYBqg5fHTyDEvYhC38 <https://www.w3.org/2018/credentials#validUntil> \"2029-12-03T00:00:00Z\"^^<http://www.w3.org/2001/XMLSchema#dateTime> .\n",
"_:uVkUuBrlOaELGVQWJD4M_qW5bcKEHWGNbOrPA_qAOKKw <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <https://w3id.org/citizenship#EmploymentAuthorizationDocument> .\n",
"_:uVkUuBrlOaELGVQWJD4M_qW5bcKEHWGNbOrPA_qAOKKw <https://schema.org/identifier> \"83627465\" .\n",
"_:uVkUuBrlOaELGVQWJD4M_qW5bcKEHWGNbOrPA_qAOKKw <https://w3id.org/citizenship#lprCategory> \"C09\" .\n",
"_:uVkUuBrlOaELGVQWJD4M_qW5bcKEHWGNbOrPA_qAOKKw <https://w3id.org/citizenship#lprNumber> \"999-999-999\" .\n"
]
위 정규 문서는 필수 문과 비필수 문으로 그룹화된다. 선택적 공개 변환 과정의 최종
출력을 아래에 나타낸다. 이제 각 문은 필수와 비필수로 그룹화되며, 이전 문 목록에서의
인덱스가 기억된다.
{
"mandatoryPointers": [
"/issuer"
],
"mandatory": {
"dataType": "Map",
"value": [
[
0,
"<did:key:zDnaegE6RR3atJtHKwTRTWHsJ3kNHqFwv7n9YjTgmU7TyfU76> <https://schema.org/image> <data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVQIW2NgUPr/HwADaAIhG61j/AAAAABJRU5ErkJggg==> .\n"
],
[
12,
"_:u4YIOZn1MHES1Z4Ij2hWZG3R4dEYBqg5fHTyDEvYhC38 <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <https://w3id.org/citizenship#EmploymentAuthorizationDocumentCredential> .\n"
],
[
13,
"_:u4YIOZn1MHES1Z4Ij2hWZG3R4dEYBqg5fHTyDEvYhC38 <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <https://www.w3.org/2018/credentials#VerifiableCredential> .\n"
],
[
17,
"_:u4YIOZn1MHES1Z4Ij2hWZG3R4dEYBqg5fHTyDEvYhC38 <https://www.w3.org/2018/credentials#issuer> <did:key:zDnaegE6RR3atJtHKwTRTWHsJ3kNHqFwv7n9YjTgmU7TyfU76> .\n"
]
]
},
"nonMandatory": {
"dataType": "Map",
"value": [
[
1,
"_:u3Lv2QpFgo-YAegc1cQQKWJFW2sEjQF6FfuZ0VEoMKHg <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <https://schema.org/Person> .\n"
],
[
2,
"_:u3Lv2QpFgo-YAegc1cQQKWJFW2sEjQF6FfuZ0VEoMKHg <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <https://w3id.org/citizenship#EmployablePerson> .\n"
],
[
3,
"_:u3Lv2QpFgo-YAegc1cQQKWJFW2sEjQF6FfuZ0VEoMKHg <https://schema.org/additionalName> \"JACOB\" .\n"
],
[
4,
"_:u3Lv2QpFgo-YAegc1cQQKWJFW2sEjQF6FfuZ0VEoMKHg <https://schema.org/birthDate> \"1999-07-17\"^^<http://www.w3.org/2001/XMLSchema#dateTime> .\n"
],
[
5,
"_:u3Lv2QpFgo-YAegc1cQQKWJFW2sEjQF6FfuZ0VEoMKHg <https://schema.org/familyName> \"SMITH\" .\n"
],
[
6,
"_:u3Lv2QpFgo-YAegc1cQQKWJFW2sEjQF6FfuZ0VEoMKHg <https://schema.org/gender> \"Male\" .\n"
],
[
7,
"_:u3Lv2QpFgo-YAegc1cQQKWJFW2sEjQF6FfuZ0VEoMKHg <https://schema.org/givenName> \"JOHN\" .\n"
],
[
8,
"_:u3Lv2QpFgo-YAegc1cQQKWJFW2sEjQF6FfuZ0VEoMKHg <https://schema.org/image> <data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVQIW2Ng+M/wHwAEAQH/7yMK/gAAAABJRU5ErkJggg==> .\n"
],
[
9,
"_:u3Lv2QpFgo-YAegc1cQQKWJFW2sEjQF6FfuZ0VEoMKHg <https://w3id.org/citizenship#birthCountry> \"Bahamas\" .\n"
],
[
10,
"_:u3Lv2QpFgo-YAegc1cQQKWJFW2sEjQF6FfuZ0VEoMKHg <https://w3id.org/citizenship#employmentAuthorizationDocument> _:uVkUuBrlOaELGVQWJD4M_qW5bcKEHWGNbOrPA_qAOKKw .\n"
],
[
11,
"_:u3Lv2QpFgo-YAegc1cQQKWJFW2sEjQF6FfuZ0VEoMKHg <https://w3id.org/citizenship#residentSince> \"2015-01-01\"^^<http://www.w3.org/2001/XMLSchema#dateTime> .\n"
],
[
14,
"_:u4YIOZn1MHES1Z4Ij2hWZG3R4dEYBqg5fHTyDEvYhC38 <https://schema.org/description> \"Example Employment Authorization Document.\" .\n"
],
[
15,
"_:u4YIOZn1MHES1Z4Ij2hWZG3R4dEYBqg5fHTyDEvYhC38 <https://schema.org/name> \"Employment Authorization Document\" .\n"
],
[
16,
"_:u4YIOZn1MHES1Z4Ij2hWZG3R4dEYBqg5fHTyDEvYhC38 <https://www.w3.org/2018/credentials#credentialSubject> _:u3Lv2QpFgo-YAegc1cQQKWJFW2sEjQF6FfuZ0VEoMKHg .\n"
],
[
18,
"_:u4YIOZn1MHES1Z4Ij2hWZG3R4dEYBqg5fHTyDEvYhC38 <https://www.w3.org/2018/credentials#validFrom> \"2019-12-03T00:00:00Z\"^^<http://www.w3.org/2001/XMLSchema#dateTime> .\n"
],
[
19,
"_:u4YIOZn1MHES1Z4Ij2hWZG3R4dEYBqg5fHTyDEvYhC38 <https://www.w3.org/2018/credentials#validUntil> \"2029-12-03T00:00:00Z\"^^<http://www.w3.org/2001/XMLSchema#dateTime> .\n"
],
[
20,
"_:uVkUuBrlOaELGVQWJD4M_qW5bcKEHWGNbOrPA_qAOKKw <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <https://w3id.org/citizenship#EmploymentAuthorizationDocument> .\n"
],
[
21,
"_:uVkUuBrlOaELGVQWJD4M_qW5bcKEHWGNbOrPA_qAOKKw <https://schema.org/identifier> \"83627465\" .\n"
],
[
22,
"_:uVkUuBrlOaELGVQWJD4M_qW5bcKEHWGNbOrPA_qAOKKw <https://w3id.org/citizenship#lprCategory> \"C09\" .\n"
],
[
23,
"_:uVkUuBrlOaELGVQWJD4M_qW5bcKEHWGNbOrPA_qAOKKw <https://w3id.org/citizenship#lprNumber> \"999-999-999\" .\n"
]
]
},
"hmacKeyString": "00112233445566778899AABBCCDDEEFF00112233445566778899AABBCCDDEEFF"
}
다음 단계는 기본 증명 구성을 생성하고 이를 정규화하는 것이다. 이는 다음 두 예시에
나타나 있다.
{
"type": "DataIntegrityProof",
"cryptosuite": "ecdsa-sd-2023",
"created": "2023-08-15T23:36:38Z",
"verificationMethod": "did:key:zDnaepBuvsQ8cpsWrVKw8fbpGpvPeNSjVPTWoq6cRqaYzBKVP#zDnaepBuvsQ8cpsWrVKw8fbpGpvPeNSjVPTWoq6cRqaYzBKVP",
"proofPurpose": "assertionMethod",
"@context": [
"https://www.w3.org/ns/credentials/v2",
"https://w3id.org/citizenship/v4rc1"
]
}
_:c14n0 <http://purl.org/dc/terms/created> "2023-08-15T23:36:38Z"^^<http://www.w3.org/2001/XMLSchema#dateTime> .
_:c14n0 <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <https://w3id.org/security#DataIntegrityProof> .
_:c14n0 <https://w3id.org/security#cryptosuite> "ecdsa-sd-2023"^^<https://w3id.org/security#cryptosuiteString> .
_:c14n0 <https://w3id.org/security#proofPurpose> <https://w3id.org/security#assertionMethod> .
_:c14n0 <https://w3id.org/security#verificationMethod> <did:key:zDnaepBuvsQ8cpsWrVKw8fbpGpvPeNSjVPTWoq6cRqaYzBKVP#zDnaepBuvsQ8cpsWrVKw8fbpGpvPeNSjVPTWoq6cRqaYzBKVP> .
해싱 단계에서는 정규화된 증명 옵션의 SHA-256 해시를 계산하여 proofHash를 생성하고,
모든 필수 nquad를 결합한 것의 SHA-256 해시를 계산하여 mandatoryHash를 생성한다.
이들을 아래에 16진 형식으로 나타낸다.
{
"proofHash": "9c5c9b189f06cfa9d9f21a838ccb9b04316f07ad1a517bfd4955ee28c6a8229c",
"mandatoryHash": "a042dc047c236816f49fbe5282a79c5e77abe111e47f4c20203b5064c7f0f059"
}
발급자의 장기 privateKey를 사용하여 proofHash, proofPublicKey,
mandatoryHash를 연결한 것에 대해 baseSignature를 계산한다. 증명별
proofPrivateKey를 사용하여 각 비필수 nquad에 서명함으로써 signatures 배열을
계산한다. 최종 직렬화 단계에 입력되는 이 서명들과 proofPublicKey,
mandatoryPointers를 아래에 나타낸다.
{
"baseSignature": "b8dc55afeb6427a990e9d60c0d363b654306d92703e5036210ca29619d8ed204194ba3d86e31cdbc99f4ee9d5f25f0cc1c1f44f5fa39abec9a50cdf519b457e0",
"publicKey": "zDnaeTHfhmSaQKBc7CmdL3K7oYg3D6SC7yowe2eBeVd2DH32r",
"signatures": [
"fd91ec48b3524965f7a1453e9ffa067054eca6f7d6338a84525eb3288bb0caf7a9651f02fee14d6d33ee1679aa8828348ccc574e194d7f57fca8be354c1b30f7",
"c92e6ea5f65343c704ac9450da4d55f87342829b9bad7aface8300a0879bc9972ec4879eebbaaffd9ad9e3f91d291971c8ffe5d768497d62fa27256a7e03bf99",
"5d98f7d800ae2aa62927a65e0345a5ae02df041c9cd26de1525a63431b9360c24216737d2374d0789d4e40acdd0bf75b077c06534a6d258084ad8beb149980d6",
"c8d70ede67864b3219dcb3c3831401ca069ac5f8db9e2714d5f57f367c76320d1e0a9fa4917551add811a415e19bcc32c017ef5ba02e81fed672c72711230b10",
"3a6263590ab7fbc4e5ef7bc6c3f6b9cdd8a96c7c4d9a1f120612213ca39a50f39d7b56d6365ead6054bdbe4b971b2769d61841a3f7236a7434e5f1b0f6e2e8fc",
"f5f1fe2990af59361ccd4863359405164ce6a0807dfedd2d1972826e6b79ee051df16f5dfc43d57ed0d57743b94c4f57dd5784fbb04a9bf2b6b7258f5c595524",
"44b68330d1b12ceec6c07ed560587b6bfd49c831fa90c1a8725a41a3e3247f2950bcfe51a0b26bf422e94f811001dc17b1b93b3f82423457acc5c19f214da5e1",
"c29744b9bfb68a250eb17aaf49416a8a77a5eed01be18c3278a3784db8f6731bda3da956855bc27f3bc91e3f8331371e100722fc223becb47072a45b7653be08",
"2b66d296f2d09ff280d4cdec1d02b6c38065ed36c99b6db40a9a800f4faea46187c7b42c6cb232b5103bc88445f5e1f32c89692071546f316a836cd31a979f8d",
"016fdf24189adefa773c26ad2e0482aebf74a7bb8d5a142723d43d18adc049c408faafdcef8bb11cdc9c728d8f746ae32e03197767bb1aa91fd61a8fc4993abe",
"e7ee420aa027ba4671b926c29e2c574f94461660a0b3d6c828cce50314d9e1e4c346ed119352adf6141c66e2fce4a2cb7486c3f81cc42e388a5f921285677d94",
"ff516e1c599ef23779cdd5a6ae34a7db1a1d244514d32308a809752e6c2d112e5a7b473360c0b8caf27949aa161d10876d19c77b50e76160736f1ea4cfdefaa2",
"c85373002c77fb25e7880c1b2df2e2fa6c25decf563b0a88332e4654773b08b9286b65effe00f8689df03df6e2dfcd4575eff23a08c92bd360e285c22bfa2b5d",
"09e91f89dfd0a252f79a970caec55814cd570a8e41ec2ac25c33bd8afe479a70b8e744d363bc7daa313625d0cb4c1ea8c64c87577835e9b7416b4615bb82def9",
"b181986ef2cfb77b71f27cfb4365b8860799d9e84c3df62b3863319250d57a91d429cb15127122c36fd34a92ea0745b4a641454c561c55c37741ee247a866264",
"13d02a9caf0d96b9fbec397d4faad90e78c56d0cbd933224d58b5c81623e3571b22aa15bc4ad201c364e3566793c9dda9c983e9965f47c7ce5ff6e1b42484dd4",
"91cc9524b4aa346fc6e409e94b28b8a9891491ae627e47e60f0cd36d90034eb97a8595fcb35a07d3faa5fc213e759b0bea03cb82c58a3711c9de299b7e77904b",
"22d951c202cd2dbf92a5fd20483f618177f16c08aa798fd6e8a0631fba6d059e304c1ed96a3785aa1be2539eb1fac22caace1f450b5a3a48602c7fb4c68f2d7b",
"d0fbcf518ec15c3f10d8d2b275963807030ad7e4b03e6c7a6ca0e6b73d61f15a94d76097fc91e1a828c7d9272b178b8ced6422db36e9a1a85ce2a18e39115542",
"be6366acec557376a71a450f862979f60e642b8edafc104eaf4691784bb48245f3d79f093cd1f631d55217ae2f9f30f17d9ba1b98aae45e02461e1db9bde121f"
],
"mandatoryPointers": [
"/issuer"
]
}
마지막으로, 위 값들을 3.5.2 serializeBaseProofValue 절의 알고리즘에 통과시켜 proofValue를 생성하며,
이는 아래에 나타난 서명된 기본 문서에 사용된다.
{
"@context": [
"https://www.w3.org/ns/credentials/v2",
"https://w3id.org/citizenship/v4rc1"
],
"type": [
"VerifiableCredential",
"EmploymentAuthorizationDocumentCredential"
],
"issuer": {
"id": "did:key:zDnaegE6RR3atJtHKwTRTWHsJ3kNHqFwv7n9YjTgmU7TyfU76",
"image": "data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVQIW2NgUPr/HwADaAIhG61j/AAAAABJRU5ErkJggg=="
},
"credentialSubject": {
"type": [
"Person",
"EmployablePerson"
],
"givenName": "JOHN",
"additionalName": "JACOB",
"familyName": "SMITH",
"image": "data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVQIW2Ng+M/wHwAEAQH/7yMK/gAAAABJRU5ErkJggg==",
"gender": "Male",
"residentSince": "2015-01-01",
"birthCountry": "Bahamas",
"birthDate": "1999-07-17",
"employmentAuthorizationDocument": {
"type": "EmploymentAuthorizationDocument",
"identifier": "83627465",
"lprCategory": "C09",
"lprNumber": "999-999-999"
}
},
"name": "Employment Authorization Document",
"description": "Example Employment Authorization Document.",
"validFrom": "2019-12-03T00:00:00Z",
"validUntil": "2029-12-03T00:00:00Z",
"proof": {
"type": "DataIntegrityProof",
"cryptosuite": "ecdsa-sd-2023",
"created": "2023-08-15T23:36:38Z",
"verificationMethod": "did:key:zDnaepBuvsQ8cpsWrVKw8fbpGpvPeNSjVPTWoq6cRqaYzBKVP#zDnaepBuvsQ8cpsWrVKw8fbpGpvPeNSjVPTWoq6cRqaYzBKVP",
"proofPurpose": "assertionMethod",
"proofValue": "u2V0AhVhAuNxVr-tkJ6mQ6dYMDTY7ZUMG2ScD5QNiEMopYZ2O0gQZS6PYbjHNvJn07p1fJfDMHB9E9fo5q-yaUM31GbRX4FgjgCQCKnLOGbY_FuM-ASpSkkOxsIR2E8n7Ml2q1UQ6tEwzi5NYIAARIjNEVWZ3iJmqu8zd7v8AESIzRFVmd4iZqrvM3e7_lFhA_ZHsSLNSSWX3oUU-n_oGcFTspvfWM4qEUl6zKIuwyvepZR8C_uFNbTPuFnmqiCg0jMxXThlNf1f8qL41TBsw91hAyS5upfZTQ8cErJRQ2k1V-HNCgpubrXr6zoMAoIebyZcuxIee67qv_ZrZ4_kdKRlxyP_l12hJfWL6JyVqfgO_mVhAXZj32ACuKqYpJ6ZeA0WlrgLfBByc0m3hUlpjQxuTYMJCFnN9I3TQeJ1OQKzdC_dbB3wGU0ptJYCErYvrFJmA1lhAyNcO3meGSzIZ3LPDgxQBygaaxfjbnicU1fV_Nnx2Mg0eCp-kkXVRrdgRpBXhm8wywBfvW6Augf7WcscnESMLEFhAOmJjWQq3-8Tl73vGw_a5zdipbHxNmh8SBhIhPKOaUPOde1bWNl6tYFS9vkuXGydp1hhBo_cjanQ05fGw9uLo_FhA9fH-KZCvWTYczUhjNZQFFkzmoIB9_t0tGXKCbmt57gUd8W9d_EPVftDVd0O5TE9X3VeE-7BKm_K2tyWPXFlVJFhARLaDMNGxLO7GwH7VYFh7a_1JyDH6kMGoclpBo-MkfylQvP5RoLJr9CLpT4EQAdwXsbk7P4JCNFesxcGfIU2l4VhAwpdEub-2iiUOsXqvSUFqinel7tAb4YwyeKN4Tbj2cxvaPalWhVvCfzvJHj-DMTceEAci_CI77LRwcqRbdlO-CFhAK2bSlvLQn_KA1M3sHQK2w4Bl7TbJm220CpqAD0-upGGHx7QsbLIytRA7yIRF9eHzLIlpIHFUbzFqg2zTGpefjVhAAW_fJBia3vp3PCatLgSCrr90p7uNWhQnI9Q9GK3AScQI-q_c74uxHNycco2PdGrjLgMZd2e7Gqkf1hqPxJk6vlhA5-5CCqAnukZxuSbCnixXT5RGFmCgs9bIKMzlAxTZ4eTDRu0Rk1Kt9hQcZuL85KLLdIbD-BzELjiKX5IShWd9lFhA_1FuHFme8jd5zdWmrjSn2xodJEUU0yMIqAl1LmwtES5ae0czYMC4yvJ5SaoWHRCHbRnHe1DnYWBzbx6kz976olhAyFNzACx3-yXniAwbLfLi-mwl3s9WOwqIMy5GVHc7CLkoa2Xv_gD4aJ3wPfbi381Fde_yOgjJK9Ng4oXCK_orXVhACekfid_QolL3mpcMrsVYFM1XCo5B7CrCXDO9iv5HmnC450TTY7x9qjE2JdDLTB6oxkyHV3g16bdBa0YVu4Le-VhAsYGYbvLPt3tx8nz7Q2W4hgeZ2ehMPfYrOGMxklDVepHUKcsVEnEiw2_TSpLqB0W0pkFFTFYcVcN3Qe4keoZiZFhAE9AqnK8Nlrn77Dl9T6rZDnjFbQy9kzIk1YtcgWI-NXGyKqFbxK0gHDZONWZ5PJ3anJg-mWX0fHzl_24bQkhN1FhAkcyVJLSqNG_G5AnpSyi4qYkUka5ifkfmDwzTbZADTrl6hZX8s1oH0_ql_CE-dZsL6gPLgsWKNxHJ3imbfneQS1hAItlRwgLNLb-Spf0gSD9hgXfxbAiqeY_W6KBjH7ptBZ4wTB7ZajeFqhviU56x-sIsqs4fRQtaOkhgLH-0xo8te1hA0PvPUY7BXD8Q2NKydZY4BwMK1-SwPmx6bKDmtz1h8VqU12CX_JHhqCjH2ScrF4uM7WQi2zbpoahc4qGOORFVQlhAvmNmrOxVc3anGkUPhil59g5kK47a_BBOr0aReEu0gkXz158JPNH2MdVSF64vnzDxfZuhuYquReAkYeHbm94SH4FnL2lzc3Vlcg"
}
}
파생 증명을 생성하기 위해 보유자는 기본 증명을 담은 서명된 문서로 시작한다. 이 테스트
벡터에 사용할 기본 문서는 위 A.7.1 기본 증명 절의 마지막 예시이다. 첫 번째 단계는
3.5.3 parseBaseProofValue 절의 알고리즘을 실행하여 아래와 같이
baseSignature, publicKey, hmacKey, signatures, mandatoryPointers를
복원하는 것이다.
{
"baseSignature": "b8dc55afeb6427a990e9d60c0d363b654306d92703e5036210ca29619d8ed204194ba3d86e31cdbc99f4ee9d5f25f0cc1c1f44f5fa39abec9a50cdf519b457e0",
"proofPublicKey": "zDnaeTHfhmSaQKBc7CmdL3K7oYg3D6SC7yowe2eBeVd2DH32r",
"hmacKey": "00112233445566778899aabbccddeeff00112233445566778899aabbccddeeff",
"signatures": [
"fd91ec48b3524965f7a1453e9ffa067054eca6f7d6338a84525eb3288bb0caf7a9651f02fee14d6d33ee1679aa8828348ccc574e194d7f57fca8be354c1b30f7",
"c92e6ea5f65343c704ac9450da4d55f87342829b9bad7aface8300a0879bc9972ec4879eebbaaffd9ad9e3f91d291971c8ffe5d768497d62fa27256a7e03bf99",
"5d98f7d800ae2aa62927a65e0345a5ae02df041c9cd26de1525a63431b9360c24216737d2374d0789d4e40acdd0bf75b077c06534a6d258084ad8beb149980d6",
"c8d70ede67864b3219dcb3c3831401ca069ac5f8db9e2714d5f57f367c76320d1e0a9fa4917551add811a415e19bcc32c017ef5ba02e81fed672c72711230b10",
"3a6263590ab7fbc4e5ef7bc6c3f6b9cdd8a96c7c4d9a1f120612213ca39a50f39d7b56d6365ead6054bdbe4b971b2769d61841a3f7236a7434e5f1b0f6e2e8fc",
"f5f1fe2990af59361ccd4863359405164ce6a0807dfedd2d1972826e6b79ee051df16f5dfc43d57ed0d57743b94c4f57dd5784fbb04a9bf2b6b7258f5c595524",
"44b68330d1b12ceec6c07ed560587b6bfd49c831fa90c1a8725a41a3e3247f2950bcfe51a0b26bf422e94f811001dc17b1b93b3f82423457acc5c19f214da5e1",
"c29744b9bfb68a250eb17aaf49416a8a77a5eed01be18c3278a3784db8f6731bda3da956855bc27f3bc91e3f8331371e100722fc223becb47072a45b7653be08",
"2b66d296f2d09ff280d4cdec1d02b6c38065ed36c99b6db40a9a800f4faea46187c7b42c6cb232b5103bc88445f5e1f32c89692071546f316a836cd31a979f8d",
"016fdf24189adefa773c26ad2e0482aebf74a7bb8d5a142723d43d18adc049c408faafdcef8bb11cdc9c728d8f746ae32e03197767bb1aa91fd61a8fc4993abe",
"e7ee420aa027ba4671b926c29e2c574f94461660a0b3d6c828cce50314d9e1e4c346ed119352adf6141c66e2fce4a2cb7486c3f81cc42e388a5f921285677d94",
"ff516e1c599ef23779cdd5a6ae34a7db1a1d244514d32308a809752e6c2d112e5a7b473360c0b8caf27949aa161d10876d19c77b50e76160736f1ea4cfdefaa2",
"c85373002c77fb25e7880c1b2df2e2fa6c25decf563b0a88332e4654773b08b9286b65effe00f8689df03df6e2dfcd4575eff23a08c92bd360e285c22bfa2b5d",
"09e91f89dfd0a252f79a970caec55814cd570a8e41ec2ac25c33bd8afe479a70b8e744d363bc7daa313625d0cb4c1ea8c64c87577835e9b7416b4615bb82def9",
"b181986ef2cfb77b71f27cfb4365b8860799d9e84c3df62b3863319250d57a91d429cb15127122c36fd34a92ea0745b4a641454c561c55c37741ee247a866264",
"13d02a9caf0d96b9fbec397d4faad90e78c56d0cbd933224d58b5c81623e3571b22aa15bc4ad201c364e3566793c9dda9c983e9965f47c7ce5ff6e1b42484dd4",
"91cc9524b4aa346fc6e409e94b28b8a9891491ae627e47e60f0cd36d90034eb97a8595fcb35a07d3faa5fc213e759b0bea03cb82c58a3711c9de299b7e77904b",
"22d951c202cd2dbf92a5fd20483f618177f16c08aa798fd6e8a0631fba6d059e304c1ed96a3785aa1be2539eb1fac22caace1f450b5a3a48602c7fb4c68f2d7b",
"d0fbcf518ec15c3f10d8d2b275963807030ad7e4b03e6c7a6ca0e6b73d61f15a94d76097fc91e1a828c7d9272b178b8ced6422db36e9a1a85ce2a18e39115542",
"be6366acec557376a71a450f862979f60e642b8edafc104eaf4691784bb48245f3d79f093cd1f631d55217ae2f9f30f17d9ba1b98aae45e02461e1db9bde121f"
],
"mandatoryPointers": [
"/issuer"
]
}
다음으로, 보유자는 선택적 공개를 위한 JSON 포인터를 지정하여 그 외에 검증자에게
공개하고자 하는 것이 있다면 무엇인지 표시한다.
["/validFrom", "/validUntil", "/credentialSubject/birthCountry"]
결국 서명되어 검증자에게 전송될 서명되지 않은 문서인 revealDocument를 생성하기
위해, 필수 포인터에 선택 포인터를 덧붙이고, 이 결합된 포인터를 증명 없는 문서와 함께
3.4.13 selectJsonLd 절의 알고리즘에 입력하여 아래에 나타난 결과를 얻는다.
{
"@context": [
"https://www.w3.org/ns/credentials/v2",
"https://w3id.org/citizenship/v4rc1"
],
"type": [
"VerifiableCredential",
"EmploymentAuthorizationDocumentCredential"
],
"issuer": {
"id": "did:key:zDnaegE6RR3atJtHKwTRTWHsJ3kNHqFwv7n9YjTgmU7TyfU76",
"image": "data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVQIW2NgUPr/HwADaAIhG61j/AAAAABJRU5ErkJggg=="
},
"validFrom": "2019-12-03T00:00:00Z",
"validUntil": "2029-12-03T00:00:00Z",
"credentialSubject": {
"type": [
"Person",
"EmployablePerson"
],
"birthCountry": "Bahamas"
}
}
이제 공개된 문서가 어떤 모습인지 알았으므로, 어떤 문이 필수인지, 선택된 비필수 문에
대한 서명, 그리고 공개 문서의 정규 공백 노드 id와 HMAC 공백 노드 id의 부분집합 사이의
매핑에 관한 적절히 갱신된 정보를 검증자에게 제공해야 한다. 3.5.4 createDisclosureData의 6단계를 실행하면 원본 문서를 기준으로 다양한 문 그룹에
관한 풍부한 정보가 산출된다. 아래에 그 그룹들의 인덱스 일부를 나타낸다.
{
"combinedIndexes":[0,1,2,9,12,13,16,17,18,19],
"mandatoryIndexes":[0,12,13,17],
"nonMandatoryIndexes":[1,2,3,4,5,6,7,8,9,10,11,14,15,16,18,19,20,21,22,23],
"selectiveIndexes":[1,2,9,12,13,16,18,19]
}
검증자는 필수 문을 집계하고 해싱할 수 있어야 한다. 이를 가능하게 하기 위해, 공개
문서에서의 위치에 맞게 조정된 필수 문의 인덱스 목록을 검증자에게 제공한다. 이전
예시에서 combinedIndexes는 공개 문서를 구성하는 모든 원본 nquad(문)의 인덱스를
순서대로 보여준다. 아래에 나타난 조정된 필수 인덱스를 얻기 위해, 아래와 같이
combinedIndexes를 기준으로 각 원본 필수 인덱스의 인덱스를 구한다.
{
"adjMandatoryIndexes":[0,4,5,7]
}
우리는 필수가 아닌 선택적 문(nquad)에 대한 서명 목록을 검증자에게 제공해야 한다. 원본
서명 목록은 모든 비필수 문에 대응하며, 원본 문서에서 이들의 인덱스는 위에 주어져 있다.
이제 우리는 목록에 없는 선택 인덱스는 무시하고, 비필수 인덱스 목록에서 각 선택 인덱스의
인덱스를 계산함으로써 조정된 서명 인덱스 목록을 계산한다. 그런 다음 조정된 서명 인덱스를
사용하여 필터링된 서명 목록을 얻는다. 이 목록들을 아래에 나타낸다.
{
"adjSignatureIndexes":[0,1,8,13,14,15],
"filteredSignatures":[
"fd91ec48b3524965f7a1453e9ffa067054eca6f7d6338a84525eb3288bb0caf7a9651f02fee14d6d33ee1679aa8828348ccc574e194d7f57fca8be354c1b30f7",
"c92e6ea5f65343c704ac9450da4d55f87342829b9bad7aface8300a0879bc9972ec4879eebbaaffd9ad9e3f91d291971c8ffe5d768497d62fa27256a7e03bf99",
"2b66d296f2d09ff280d4cdec1d02b6c38065ed36c99b6db40a9a800f4faea46187c7b42c6cb232b5103bc88445f5e1f32c89692071546f316a836cd31a979f8d",
"09e91f89dfd0a252f79a970caec55814cd570a8e41ec2ac25c33bd8afe479a70b8e744d363bc7daa313625d0cb4c1ea8c64c87577835e9b7416b4615bb82def9",
"b181986ef2cfb77b71f27cfb4365b8860799d9e84c3df62b3863319250d57a91d429cb15127122c36fd34a92ea0745b4a641454c561c55c37741ee247a866264",
"13d02a9caf0d96b9fbec397d4faad90e78c56d0cbd933224d58b5c81623e3571b22aa15bc4ad201c364e3566793c9dda9c983e9965f47c7ce5ff6e1b42484dd4"
]
}
공개 데이터의 마지막 중요한 부분은 정규 공백 노드 id를 HMAC 기반 id로 매핑하는
labelMap이며, 이는 3.5.4 createDisclosureData 절의 12~14단계에 따라 계산된다. 이를 공개 문서를
제외한 나머지 공개 데이터와 함께 아래에 나타낸다.
{
"baseSignature": "b8dc55afeb6427a990e9d60c0d363b654306d92703e5036210ca29619d8ed204194ba3d86e31cdbc99f4ee9d5f25f0cc1c1f44f5fa39abec9a50cdf519b457e0",
"publicKey": "zDnaeTHfhmSaQKBc7CmdL3K7oYg3D6SC7yowe2eBeVd2DH32r",
"signatures": [
"fd91ec48b3524965f7a1453e9ffa067054eca6f7d6338a84525eb3288bb0caf7a9651f02fee14d6d33ee1679aa8828348ccc574e194d7f57fca8be354c1b30f7",
"c92e6ea5f65343c704ac9450da4d55f87342829b9bad7aface8300a0879bc9972ec4879eebbaaffd9ad9e3f91d291971c8ffe5d768497d62fa27256a7e03bf99",
"2b66d296f2d09ff280d4cdec1d02b6c38065ed36c99b6db40a9a800f4faea46187c7b42c6cb232b5103bc88445f5e1f32c89692071546f316a836cd31a979f8d",
"09e91f89dfd0a252f79a970caec55814cd570a8e41ec2ac25c33bd8afe479a70b8e744d363bc7daa313625d0cb4c1ea8c64c87577835e9b7416b4615bb82def9",
"b181986ef2cfb77b71f27cfb4365b8860799d9e84c3df62b3863319250d57a91d429cb15127122c36fd34a92ea0745b4a641454c561c55c37741ee247a866264",
"13d02a9caf0d96b9fbec397d4faad90e78c56d0cbd933224d58b5c81623e3571b22aa15bc4ad201c364e3566793c9dda9c983e9965f47c7ce5ff6e1b42484dd4"
],
"labelMap": {
"dataType": "Map",
"value": [
[
"c14n0",
"u3Lv2QpFgo-YAegc1cQQKWJFW2sEjQF6FfuZ0VEoMKHg"
],
[
"c14n1",
"u4YIOZn1MHES1Z4Ij2hWZG3R4dEYBqg5fHTyDEvYhC38"
]
]
},
"mandatoryIndexes": [
0,
4,
5,
7
]
}
마지막으로 위 공개 데이터를 3.5.7 serializeDerivedProofValue 절의 알고리즘과 함께 사용하여 아래에 나타난
서명된 파생(공개) 문서를 얻는다.
{
"@context": [
"https://www.w3.org/ns/credentials/v2",
"https://w3id.org/citizenship/v4rc1"
],
"type": [
"VerifiableCredential",
"EmploymentAuthorizationDocumentCredential"
],
"issuer": {
"id": "did:key:zDnaegE6RR3atJtHKwTRTWHsJ3kNHqFwv7n9YjTgmU7TyfU76",
"image": "data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVQIW2NgUPr/HwADaAIhG61j/AAAAABJRU5ErkJggg=="
},
"validFrom": "2019-12-03T00:00:00Z",
"validUntil": "2029-12-03T00:00:00Z",
"credentialSubject": {
"type": [
"Person",
"EmployablePerson"
],
"birthCountry": "Bahamas"
},
"proof": {
"type": "DataIntegrityProof",
"cryptosuite": "ecdsa-sd-2023",
"created": "2023-08-15T23:36:38Z",
"verificationMethod": "did:key:zDnaepBuvsQ8cpsWrVKw8fbpGpvPeNSjVPTWoq6cRqaYzBKVP#zDnaepBuvsQ8cpsWrVKw8fbpGpvPeNSjVPTWoq6cRqaYzBKVP",
"proofPurpose": "assertionMethod",
"proofValue": "u2V0BhVhAuNxVr-tkJ6mQ6dYMDTY7ZUMG2ScD5QNiEMopYZ2O0gQZS6PYbjHNvJn07p1fJfDMHB9E9fo5q-yaUM31GbRX4FgjgCQCKnLOGbY_FuM-ASpSkkOxsIR2E8n7Ml2q1UQ6tEwzi5OGWED9kexIs1JJZfehRT6f-gZwVOym99YzioRSXrMoi7DK96llHwL-4U1tM-4WeaqIKDSMzFdOGU1_V_yovjVMGzD3WEDJLm6l9lNDxwSslFDaTVX4c0KCm5utevrOgwCgh5vJly7Eh57ruq_9mtnj-R0pGXHI_-XXaEl9YvonJWp-A7-ZWEArZtKW8tCf8oDUzewdArbDgGXtNsmbbbQKmoAPT66kYYfHtCxssjK1EDvIhEX14fMsiWkgcVRvMWqDbNMal5-NWEAJ6R-J39CiUvealwyuxVgUzVcKjkHsKsJcM72K_keacLjnRNNjvH2qMTYl0MtMHqjGTIdXeDXpt0FrRhW7gt75WECxgZhu8s-3e3HyfPtDZbiGB5nZ6Ew99is4YzGSUNV6kdQpyxUScSLDb9NKkuoHRbSmQUVMVhxVw3dB7iR6hmJkWEAT0Cqcrw2WufvsOX1PqtkOeMVtDL2TMiTVi1yBYj41cbIqoVvErSAcNk41Znk8ndqcmD6ZZfR8fOX_bhtCSE3UogBYINy79kKRYKPmAHoHNXEECliRVtrBI0BehX7mdFRKDCh4AVgg4YIOZn1MHES1Z4Ij2hWZG3R4dEYBqg5fHTyDEvYhC3-EAAQFBw"
}
}