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Add Ed25519 signature test image (#12) #25

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14 changes: 14 additions & 0 deletions 2.2/image/good/jpeg/README.md
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# JPEG Test Files (Good)

Files in this directory are valid C2PA test files following the C2PA 2.2 specification.

## Ed25519 Signature Examples

| Image | Description | Manifest | Detailed Manifest |
|-------|-------------|----------|-------------------|
| [test-20260203-ed25519.jpg](test-20260203-ed25519.jpg) | Test image signed with Ed25519 algorithm | [manifest_store.json](manifests/test-20260203-ed25519/manifest_store.json) | [detailed.json](manifests/test-20260203-ed25519/detailed.json) |

### Notes

- The Ed25519 test file uses a test certificate which is not on any trusted certificate list
- The signature itself is valid, but validators will report the certificate as untrusted
126 changes: 126 additions & 0 deletions 2.2/image/good/jpeg/manifests/test-20260203-ed25519/detailed.json
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{
"active_manifest": "urn:c2pa:b5d5c4fd-d3ce-4a6a-b139-0d2cd103d579",
"manifests": {
"urn:c2pa:b5d5c4fd-d3ce-4a6a-b139-0d2cd103d579": {
"claim": {
"instanceID": "xmp:iid:02ce84d5-1344-40d1-ad13-307f583f0926",
"claim_generator_info": {
"name": "c2pa-rs",
"version": "0.75.10",
"org.contentauth.c2pa_rs": "0.75.10"
},
"signature": "self#jumbf=/c2pa/urn:c2pa:b5d5c4fd-d3ce-4a6a-b139-0d2cd103d579/c2pa.signature",
"created_assertions": [
{
"url": "self#jumbf=c2pa.assertions/c2pa.hash.data",
"hash": "CJhaTDCV6EzYntGPZYDz5Z35QsebA3rRRuDdF3HU5aw="
}
],
"gathered_assertions": [
{
"url": "self#jumbf=c2pa.assertions/c2pa.thumbnail.claim",
"hash": "TmSGFfchi81b9pknBnzBQjmIdLXXFQNkQ1fomZXbL/M="
},
{
"url": "self#jumbf=c2pa.assertions/stds.schema-org.CreativeWork",
"hash": "red6W6SEsHxF4urUiKM/WmY9tTbuTX6JjEd5oXQGNhg="
},
{
"url": "self#jumbf=c2pa.assertions/c2pa.actions.v2",
"hash": "ROeBNs40hUQ6RUA8hd+1XzJh3o42pOSIjw323bTEdOo="
}
],
"dc:title": "Ed25519 Test Image",
"alg": "sha256",
"claim_version": 2
},
"assertion_store": {
"c2pa.hash.data": {
"exclusions": [
{
"start": 10908,
"length": 62775
}
],
"name": "jumbf manifest",
"alg": "sha256",
"hash": "+Zn9eL/oqDyW5GigeIMLqUSFvBvG/QhvuUpDvSndDyM=",
"pad": "AAAAAAAAAAAA"
},
"c2pa.thumbnail.claim": "<omitted> len = 49349",
"stds.schema-org.CreativeWork": {
"@context": "http://schema.org/",
"@type": "CreativeWork",
"author": [
{
"@type": "Organization",
"name": "C2PA Test"
}
]
},
"c2pa.actions.v2": {
"actions": [
{
"action": "c2pa.created"
}
]
}
},
"signature": {
"alg": "ed25519",
"issuer": "Test Organization",
"common_name": "C2PA Ed25519 Signer"
}
}
},
"validation_results": {
"activeManifest": {
"success": [
{
"code": "claimSignature.insideValidity",
"url": "self#jumbf=/c2pa/urn:c2pa:b5d5c4fd-d3ce-4a6a-b139-0d2cd103d579/c2pa.signature",
"explanation": "claim signature valid"
},
{
"code": "claimSignature.validated",
"url": "self#jumbf=/c2pa/urn:c2pa:b5d5c4fd-d3ce-4a6a-b139-0d2cd103d579/c2pa.signature",
"explanation": "claim signature valid"
},
{
"code": "assertion.hashedURI.match",
"url": "self#jumbf=/c2pa/urn:c2pa:b5d5c4fd-d3ce-4a6a-b139-0d2cd103d579/c2pa.assertions/c2pa.hash.data",
"explanation": "hashed uri matched: self#jumbf=c2pa.assertions/c2pa.hash.data"
},
{
"code": "assertion.hashedURI.match",
"url": "self#jumbf=/c2pa/urn:c2pa:b5d5c4fd-d3ce-4a6a-b139-0d2cd103d579/c2pa.assertions/c2pa.thumbnail.claim",
"explanation": "hashed uri matched: self#jumbf=c2pa.assertions/c2pa.thumbnail.claim"
},
{
"code": "assertion.hashedURI.match",
"url": "self#jumbf=/c2pa/urn:c2pa:b5d5c4fd-d3ce-4a6a-b139-0d2cd103d579/c2pa.assertions/stds.schema-org.CreativeWork",
"explanation": "hashed uri matched: self#jumbf=c2pa.assertions/stds.schema-org.CreativeWork"
},
{
"code": "assertion.hashedURI.match",
"url": "self#jumbf=/c2pa/urn:c2pa:b5d5c4fd-d3ce-4a6a-b139-0d2cd103d579/c2pa.assertions/c2pa.actions.v2",
"explanation": "hashed uri matched: self#jumbf=c2pa.assertions/c2pa.actions.v2"
},
{
"code": "assertion.dataHash.match",
"url": "self#jumbf=/c2pa/urn:c2pa:b5d5c4fd-d3ce-4a6a-b139-0d2cd103d579/c2pa.assertions/c2pa.hash.data",
"explanation": "data hash valid"
}
],
"informational": [],
"failure": [
{
"code": "signingCredential.untrusted",
"url": "self#jumbf=/c2pa/urn:c2pa:b5d5c4fd-d3ce-4a6a-b139-0d2cd103d579/c2pa.signature",
"explanation": "signing certificate untrusted"
}
]
}
},
"validation_state": "Valid"
}
111 changes: 111 additions & 0 deletions 2.2/image/good/jpeg/manifests/test-20260203-ed25519/manifest_store.json
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{
"active_manifest": "urn:c2pa:b5d5c4fd-d3ce-4a6a-b139-0d2cd103d579",
"manifests": {
"urn:c2pa:b5d5c4fd-d3ce-4a6a-b139-0d2cd103d579": {
"claim_generator_info": [
{
"name": "c2pa-rs",
"version": "0.75.10",
"org.contentauth.c2pa_rs": "0.75.10"
}
],
"title": "Ed25519 Test Image",
"instance_id": "xmp:iid:02ce84d5-1344-40d1-ad13-307f583f0926",
"thumbnail": {
"format": "image/jpeg",
"identifier": "self#jumbf=/c2pa/urn:c2pa:b5d5c4fd-d3ce-4a6a-b139-0d2cd103d579/c2pa.assertions/c2pa.thumbnail.claim"
},
"assertions": [
{
"label": "stds.schema-org.CreativeWork",
"data": {
"@context": "http://schema.org/",
"@type": "CreativeWork",
"author": [
{
"@type": "Organization",
"name": "C2PA Test"
}
]
},
"kind": "Json"
},
{
"label": "c2pa.actions.v2",
"data": {
"actions": [
{
"action": "c2pa.created"
}
]
}
}
],
"signature_info": {
"alg": "Ed25519",
"issuer": "Test Organization",
"common_name": "C2PA Ed25519 Signer",
"cert_serial_number": "114787330958198112240591113368012176529433487960"
},
"label": "urn:c2pa:b5d5c4fd-d3ce-4a6a-b139-0d2cd103d579",
"claim_version": 2
}
},
"validation_status": [
{
"code": "signingCredential.untrusted",
"url": "self#jumbf=/c2pa/urn:c2pa:b5d5c4fd-d3ce-4a6a-b139-0d2cd103d579/c2pa.signature",
"explanation": "signing certificate untrusted"
}
],
"validation_results": {
"activeManifest": {
"success": [
{
"code": "claimSignature.insideValidity",
"url": "self#jumbf=/c2pa/urn:c2pa:b5d5c4fd-d3ce-4a6a-b139-0d2cd103d579/c2pa.signature",
"explanation": "claim signature valid"
},
{
"code": "claimSignature.validated",
"url": "self#jumbf=/c2pa/urn:c2pa:b5d5c4fd-d3ce-4a6a-b139-0d2cd103d579/c2pa.signature",
"explanation": "claim signature valid"
},
{
"code": "assertion.hashedURI.match",
"url": "self#jumbf=/c2pa/urn:c2pa:b5d5c4fd-d3ce-4a6a-b139-0d2cd103d579/c2pa.assertions/c2pa.hash.data",
"explanation": "hashed uri matched: self#jumbf=c2pa.assertions/c2pa.hash.data"
},
{
"code": "assertion.hashedURI.match",
"url": "self#jumbf=/c2pa/urn:c2pa:b5d5c4fd-d3ce-4a6a-b139-0d2cd103d579/c2pa.assertions/c2pa.thumbnail.claim",
"explanation": "hashed uri matched: self#jumbf=c2pa.assertions/c2pa.thumbnail.claim"
},
{
"code": "assertion.hashedURI.match",
"url": "self#jumbf=/c2pa/urn:c2pa:b5d5c4fd-d3ce-4a6a-b139-0d2cd103d579/c2pa.assertions/stds.schema-org.CreativeWork",
"explanation": "hashed uri matched: self#jumbf=c2pa.assertions/stds.schema-org.CreativeWork"
},
{
"code": "assertion.hashedURI.match",
"url": "self#jumbf=/c2pa/urn:c2pa:b5d5c4fd-d3ce-4a6a-b139-0d2cd103d579/c2pa.assertions/c2pa.actions.v2",
"explanation": "hashed uri matched: self#jumbf=c2pa.assertions/c2pa.actions.v2"
},
{
"code": "assertion.dataHash.match",
"url": "self#jumbf=/c2pa/urn:c2pa:b5d5c4fd-d3ce-4a6a-b139-0d2cd103d579/c2pa.assertions/c2pa.hash.data",
"explanation": "data hash valid"
}
],
"informational": [],
"failure": [
{
"code": "signingCredential.untrusted",
"url": "self#jumbf=/c2pa/urn:c2pa:b5d5c4fd-d3ce-4a6a-b139-0d2cd103d579/c2pa.signature",
"explanation": "signing certificate untrusted"
}
]
}
},
"validation_state": "Valid"
}
Binary file added 2.2/image/good/jpeg/test-20260203-ed25519.jpg
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