diff --git a/common/mock-enclave/build.gradle b/common/mock-enclave/build.gradle
new file mode 100644
index 0000000000..5b55c0a39e
--- /dev/null
+++ b/common/mock-enclave/build.gradle
@@ -0,0 +1,25 @@
+apply plugin: 'kotlin'
+apply plugin: 'net.corda.plugins.publish-utils'
+apply plugin: 'com.jfrog.artifactory'
+
+dependencies {
+    compile group: "org.jetbrains.kotlin", name: "kotlin-stdlib-jdk8", version: kotlin_version
+    compile group: "org.jetbrains.kotlin", name: "kotlin-reflect", version: kotlin_version
+
+    compile group: "com.typesafe", name: "config", version: typesafe_config_version
+
+    compile project(":core")
+
+    // test dependencies
+    testImplementation "junit:junit:$junit_version"
+    testCompile group: "org.jetbrains.kotlin", name: "kotlin-test", version: kotlin_version
+}
+
+
+jar {
+    baseName 'corda-common-mock-enclave'
+}
+
+publish {
+    name jar.baseName
+}
\ No newline at end of file
diff --git a/common/mock-enclave/src/main/kotlin/com/r3/conclave/encryptedtx/dto/ConclaveLedgerTxModel.kt b/common/mock-enclave/src/main/kotlin/com/r3/conclave/encryptedtx/dto/ConclaveLedgerTxModel.kt
new file mode 100644
index 0000000000..83fa09f293
--- /dev/null
+++ b/common/mock-enclave/src/main/kotlin/com/r3/conclave/encryptedtx/dto/ConclaveLedgerTxModel.kt
@@ -0,0 +1,50 @@
+package com.r3.conclave.encryptedtx.dto
+
+import net.corda.core.contracts.Attachment
+import net.corda.core.contracts.ContractState
+import net.corda.core.contracts.StateAndRef
+import net.corda.core.node.NetworkParameters
+import net.corda.core.transactions.WireTransaction
+
+/**
+ * Enclave representation of a ledger transaction.
+ * ConclaveLedgerTxModel wraps a [WireTransaction] and additional properties to allow an enclave to reconstruct and
+ * verify a ledger transaction.
+ * @property wireTransaction a serializable transaction without signatures.
+ * @property inputStates an array of input states that will be consumed by the wrapped transaction.
+ * @property attachments an array of attachment objects that are required for this transaction to verify.
+ * @property networkParameters the network parameters that were in force when the enclosed wire transaction was
+ *  constructed.
+ * @property references an array of reference states.
+ */
+data class ConclaveLedgerTxModel(
+        val wireTransaction: WireTransaction,
+        val inputStates: Array<StateAndRef<ContractState>>,
+        val attachments: Array<Attachment>,
+        val networkParameters: NetworkParameters,
+        val references: Array<StateAndRef<ContractState>>
+) {
+    override fun equals(other: Any?): Boolean {
+        if (this === other) return true
+        if (javaClass != other?.javaClass) return false
+
+        other as ConclaveLedgerTxModel
+
+        if (wireTransaction != other.wireTransaction) return false
+        if (!inputStates.contentEquals(other.inputStates)) return false
+        if (!attachments.contentEquals(other.attachments)) return false
+        if (networkParameters != other.networkParameters) return false
+        if (!references.contentEquals(other.references)) return false
+
+        return true
+    }
+
+    override fun hashCode(): Int {
+        var result = wireTransaction.hashCode()
+        result = 31 * result + inputStates.contentHashCode()
+        result = 31 * result + attachments.contentHashCode()
+        result = 31 * result + networkParameters.hashCode()
+        result = 31 * result + references.contentHashCode()
+        return result
+    }
+}
\ No newline at end of file
diff --git a/common/mock-enclave/src/main/kotlin/com/r3/conclave/encryptedtx/enclave/EncryptedTxEnclave.kt b/common/mock-enclave/src/main/kotlin/com/r3/conclave/encryptedtx/enclave/EncryptedTxEnclave.kt
new file mode 100644
index 0000000000..1d9e92a3fe
--- /dev/null
+++ b/common/mock-enclave/src/main/kotlin/com/r3/conclave/encryptedtx/enclave/EncryptedTxEnclave.kt
@@ -0,0 +1,4 @@
+package com.r3.conclave.encryptedtx.enclave
+
+class EncryptedTxEnclave {
+}
\ No newline at end of file
diff --git a/common/mock-enclave/src/main/kotlin/com/r3/conclave/encryptedtx/internal/TransactionUtils.kt b/common/mock-enclave/src/main/kotlin/com/r3/conclave/encryptedtx/internal/TransactionUtils.kt
new file mode 100644
index 0000000000..5768bbefe2
--- /dev/null
+++ b/common/mock-enclave/src/main/kotlin/com/r3/conclave/encryptedtx/internal/TransactionUtils.kt
@@ -0,0 +1,7 @@
+package com.r3.conclave.encryptedtx.internal
+
+import com.r3.conclave.encryptedtx.dto.ConclaveLedgerTxModel
+import net.corda.core.crypto.SecureHash
+
+val ConclaveLedgerTxModel.dependencies: Set<SecureHash>
+    get() = (inputStates.asSequence() + references.asSequence()).map { it.ref.txhash }.toSet()
\ No newline at end of file
diff --git a/core/src/main/kotlin/net/corda/core/transactions/EncryptedTransaction.kt b/core/src/main/kotlin/net/corda/core/transactions/EncryptedTransaction.kt
new file mode 100644
index 0000000000..df90356b5c
--- /dev/null
+++ b/core/src/main/kotlin/net/corda/core/transactions/EncryptedTransaction.kt
@@ -0,0 +1,47 @@
+package net.corda.core.transactions
+
+import net.corda.core.crypto.SecureHash
+import net.corda.core.crypto.TransactionSignature
+import net.corda.core.serialization.CordaSerializable
+import java.security.PublicKey
+
+/**
+ * EncryptedTransaction wraps a serialized and encrypted enclave representation of a ledger transaction (a wire
+ * transaction with inputs, references, attachments and network parameters).
+ * @property id the hash of the [WireTransaction] Merkle tree root.
+ * @property encryptedBytes the serialized and encrypted enclave ledger tx.
+ * @property dependencies a set of transaction hashes this transaction depends on.
+ * @property sigs a list of signatures from individual public keys.
+ */
+@CordaSerializable
+data class EncryptedTransaction(
+        override val id: SecureHash,
+        val encryptedBytes: ByteArray,
+        val dependencies: Set<SecureHash>,
+        override val sigs: List<TransactionSignature>
+) : TransactionWithSignatures {
+
+    override val requiredSigningKeys: Set<PublicKey> = emptySet()
+
+    override fun getKeyDescriptions(keys: Set<PublicKey>): List<String> = emptyList()
+
+    override fun equals(other: Any?): Boolean {
+        if (this === other) return true
+        if (javaClass != other?.javaClass) return false
+
+        other as EncryptedTransaction
+
+        if (id != other.id) return false
+        if (!encryptedBytes.contentEquals(other.encryptedBytes)) return false
+        if (sigs != other.sigs) return false
+
+        return true
+    }
+
+    override fun hashCode(): Int {
+        var result = id.hashCode()
+        result = 31 * result + encryptedBytes.contentHashCode()
+        result = 31 * result + sigs.hashCode()
+        return result
+    }
+}
\ No newline at end of file
diff --git a/settings.gradle b/settings.gradle
index 97dfbdd783..acb034eec6 100644
--- a/settings.gradle
+++ b/settings.gradle
@@ -112,6 +112,9 @@ project(":common-configuration-parsing").projectDir = new File("$settingsDir/com
 
 include 'common-logging'
 project(":common-logging").projectDir = new File("$settingsDir/common/logging")
+
+include 'common-mock-enclave'
+project(":common-mock-enclave").projectDir = new File("$settingsDir/common/mock-enclave")
 // Common libraries - end
 
 apply from: 'buildCacheSettings.gradle'