Initial commit

core/eidas/build.gradle.kts

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+plugins {
+    id("com.android.library")
+    id("org.jetbrains.kotlin.android")
+    id("kotlin-kapt")
+    id("dagger.hilt.android.plugin")
+}
+
+android {
+    namespace = "com.smoa.core.eidas"
+    compileSdk = AppConfig.compileSdk
+
+    defaultConfig {
+        minSdk = AppConfig.minSdk
+    }
+
+    compileOptions {
+        sourceCompatibility = JavaVersion.VERSION_17
+        targetCompatibility = JavaVersion.VERSION_17
+    }
+
+    kotlinOptions {
+        jvmTarget = "17"
+    }
+}
+
+dependencies {
+    implementation(project(":core:common"))
+    implementation(project(":core:security"))
+    implementation(project(":core:certificates"))
+    implementation(project(":core:signing"))
+
+    implementation(Dependencies.androidxCoreKtx)
+    
+    // Cryptography
+    implementation(Dependencies.bouncycastle)
+    implementation(Dependencies.bouncycastlePkix)
+    
+    implementation(Dependencies.hiltAndroid)
+    kapt(Dependencies.hiltAndroidCompiler)
+    
+    implementation(Dependencies.coroutinesCore)
+    implementation(Dependencies.coroutinesAndroid)
+}
+

core/eidas/src/main/java/com/smoa/core/eidas/EIDASService.kt

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+package com.smoa.core.eidas
+
+import com.smoa.core.eidas.domain.EIDASService as DomainEIDASService
+import javax.inject.Inject
+
+/**
+ * eIDAS Service - Main entry point for eIDAS compliance features.
+ */
+class EIDASService @Inject constructor(
+    private val domainService: DomainEIDASService
+) {
+    // Service methods delegate to domain service
+}

core/eidas/src/main/java/com/smoa/core/eidas/domain/EIDASCertificate.kt

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+package com.smoa.core.eidas.domain
+
+import java.util.Date
+
+/**
+ * eIDAS qualified certificate data model.
+ */
+data class EIDASCertificate(
+    val certificateId: String,
+    val certificateData: String, // Base64 encoded X.509 certificate
+    val issuer: String, // Qualified Trust Service Provider
+    val subject: String,
+    val validFrom: Date,
+    val validTo: Date,
+    val certificateLevel: CertificateLevel,
+    val revocationStatus: RevocationStatus,
+    val lastChecked: Date?
+)
+
+enum class CertificateLevel {
+    QUALIFIED,
+    NON_QUALIFIED
+}
+
+enum class RevocationStatus {
+    VALID,
+    REVOKED,
+    UNKNOWN
+}
+

core/eidas/src/main/java/com/smoa/core/eidas/domain/EIDASService.kt

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+package com.smoa.core.eidas.domain
+
+import com.smoa.core.security.AuditLogger
+import com.smoa.core.security.AuditEventType
+import java.util.Date
+import java.util.UUID
+import javax.inject.Inject
+import javax.inject.Singleton
+
+/**
+ * eIDAS compliance service.
+ * Provides qualified electronic signatures, certificates, timestamping, and seals.
+ */
+@Singleton
+class EIDASService @Inject constructor(
+    private val auditLogger: AuditLogger
+) {
+    
+    /**
+     * Create qualified electronic signature.
+     * TODO: Integrate with Qualified Trust Service Provider (QTSP)
+     */
+    suspend fun createQualifiedSignature(
+        documentHash: String,
+        certificate: EIDASCertificate,
+        signerInfo: SignerInfo
+    ): Result<QualifiedSignature> {
+        return try {
+            // TODO: Actual signature creation with QTSP
+            val signature = QualifiedSignature(
+                signatureId = UUID.randomUUID().toString(),
+                documentHash = documentHash,
+                signatureValue = ByteArray(256), // Placeholder
+                certificate = certificate,
+                timestamp = Date(),
+                timestampToken = null, // TODO: Get from qualified TSA
+                signerInfo = signerInfo
+            )
+            
+            auditLogger.logEvent(
+                AuditEventType.POLICY_UPDATE,
+                userId = signerInfo.signerId,
+                module = "eidas",
+                details = "Qualified signature created: ${signature.signatureId}"
+            )
+            
+            Result.success(signature)
+        } catch (e: Exception) {
+            Result.failure(e)
+        }
+    }
+    
+    /**
+     * Validate qualified certificate against EU Trust Lists.
+     */
+    suspend fun validateCertificate(certificate: EIDASCertificate): Result<ValidationResult> {
+        // TODO: Validate against EU Trust Lists
+        return Result.success(ValidationResult.VALID)
+    }
+    
+    /**
+     * Create electronic seal.
+     */
+    suspend fun createElectronicSeal(
+        documentHash: String,
+        certificate: EIDASCertificate,
+        legalEntityInfo: LegalEntityInfo
+    ): Result<ElectronicSeal> {
+        return try {
+            val seal = ElectronicSeal(
+                sealId = UUID.randomUUID().toString(),
+                documentHash = documentHash,
+                sealValue = ByteArray(256), // Placeholder
+                certificate = certificate,
+                timestamp = Date(),
+                legalEntityInfo = legalEntityInfo
+            )
+            
+            Result.success(seal)
+        } catch (e: Exception) {
+            Result.failure(e)
+        }
+    }
+}
+
+enum class ValidationResult {
+    VALID,
+    INVALID,
+    REVOKED,
+    EXPIRED,
+    UNKNOWN
+}
+

core/eidas/src/main/java/com/smoa/core/eidas/domain/ElectronicSeal.kt

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+package com.smoa.core.eidas.domain
+
+import java.util.Date
+
+/**
+ * Electronic seal per eIDAS Article 36.
+ */
+data class ElectronicSeal(
+    val sealId: String,
+    val documentHash: String,
+    val sealValue: ByteArray,
+    val certificate: EIDASCertificate,
+    val timestamp: Date,
+    val legalEntityInfo: LegalEntityInfo
+)
+
+data class LegalEntityInfo(
+    val entityName: String,
+    val registrationNumber: String,
+    val jurisdiction: String,
+    val address: String
+)
+

core/eidas/src/main/java/com/smoa/core/eidas/domain/QualifiedSignature.kt

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+package com.smoa.core.eidas.domain
+
+import java.util.Date
+
+/**
+ * Qualified Electronic Signature (QES) per eIDAS Article 3(12).
+ */
+data class QualifiedSignature(
+    val signatureId: String,
+    val documentHash: String,
+    val signatureValue: ByteArray,
+    val certificate: EIDASCertificate,
+    val timestamp: Date,
+    val timestampToken: TimestampToken?,
+    val signerInfo: SignerInfo
+)
+
+data class TimestampToken(
+    val tokenValue: String,
+    val timestamp: Date,
+    val tsaCertificate: String // Timestamping Authority certificate
+)
+
+data class SignerInfo(
+    val signerId: String,
+    val signerName: String,
+    val signerAttributes: Map<String, String>
+)
+