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Fall back to JWT proof when Android KeyStore attestation fails #57

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Merged
QZHelen merged 1 commit into from
Oct 2, 2026
Merged

Fall back to JWT proof when Android KeyStore attestation fails #57

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16 changes: 10 additions & 6 deletions app/src/main/java/com/credman/cmwallet/openid4vci/OpenId4VCI.kt
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Original file line number Diff line number Diff line change
Expand Up @@ -452,13 +452,17 @@ class OpenId4VCI(val credentialOfferJson: String) {

suspend fun createKeyProofs(credentialConfigurationId: String): ProofCreationResult {
val proofTypesSupported = credentialOffer.issuerMetadata.credentialConfigurationsSupported[credentialConfigurationId]?.proofTypesSupported!!
return if (proofTypesSupported.containsKey("android_keystore_attestation")) {
createAndroidAttestationProofJwt()
} else if (proofTypesSupported.containsKey("jwt")) {
createProofJwt()
} else {
throw UnsupportedOperationException("Can handle proof types $proofTypesSupported")
if (proofTypesSupported.containsKey("android_keystore_attestation")) {
try {
return createAndroidAttestationProofJwt()
} catch (e: Exception) {
Log.w(TAG, "Failed to create Android KeyStore attestation proof", e)
}
}
if (proofTypesSupported.containsKey("jwt")) {
return createProofJwt()
}
throw UnsupportedOperationException("Could not create key proof. Cannot handle proof types $proofTypesSupported")
}

private suspend fun createAndroidAttestationProofJwt(): ProofCreationResult {
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