diff --git a/src/endorse-info.cpp b/src/endorse-info.cpp
new file mode 100644
index 0000000..985c304
--- /dev/null
+++ b/src/endorse-info.cpp
@@ -0,0 +1,170 @@
+/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil -*- */
+/*
+ * Copyright (c) 2013, Regents of the University of California
+ *
+ * BSD license, See the LICENSE file for more information
+ *
+ * Author: Qiuhan Ding <qiuhanding@cs.ucla.edu>
+ */
+
+#include "endorse-info.hpp"
+
+namespace chronochat {
+
+BOOST_CONCEPT_ASSERT((ndn::WireEncodable<EndorseInfo>));
+BOOST_CONCEPT_ASSERT((ndn::WireDecodable<EndorseInfo>));
+
+
+EndorseInfo::EndorseInfo()
+{
+}
+
+EndorseInfo::EndorseInfo(const Block& endorseWire)
+{
+  this->wireDecode(endorseWire);
+}
+
+template<bool T>
+size_t
+EndorseInfo::wireEncode(ndn::EncodingImpl<T>& block) const
+{
+  size_t totalLength = 0;
+
+  // EndorseInfo := ENDORSE-INFO-TYPE TLV-LENGTH
+  //                  ENDORSEMENT+
+  //
+  // Endorsement := ENDORSEMENT-TYPE TLV-LENGTH
+  //                  EndorseType
+  //                  EndorseValue
+  //                  EndorseCount
+  //
+  // EndorseType := ENDORSETYPE-TYPE TLV-LENGTH
+  //                  String
+  //
+  // EndorseValue := ENDORSEVALUE-TYPE TLV-LENGTH
+  //                   String
+  // EndorseCount := ENDORSECOUNT-TYPE TLV-LENGTH
+  //                   String
+
+  // Entries
+  size_t entryLength = 0;
+  for (std::vector<Endorsement>::const_reverse_iterator it = m_endorsements.rbegin();
+       it != m_endorsements.rend(); it++) {
+
+    // Endorse Count
+    const uint8_t *countWire = reinterpret_cast<const uint8_t*>(it->count.c_str());
+    entryLength += block.prependByteArrayBlock(tlv::EndorseCount, countWire, it->count.length());
+
+    // Endorse Value
+    const uint8_t *valueWire = reinterpret_cast<const uint8_t*>(it->value.c_str());
+    entryLength += block.prependByteArrayBlock(tlv::EndorseValue, valueWire, it->value.length());
+
+    // Endorse Type
+    const uint8_t *typeWire = reinterpret_cast<const uint8_t*>(it->type.c_str());
+    entryLength += block.prependByteArrayBlock(tlv::EndorseType, typeWire, it->type.length());
+
+    // Endorsement
+    entryLength += block.prependVarNumber(entryLength);
+    entryLength += block.prependVarNumber(tlv::Endorsement);
+    totalLength += entryLength;
+    entryLength = 0;
+  }
+
+  // Profile
+  totalLength += block.prependVarNumber(totalLength);
+  totalLength += block.prependVarNumber(tlv::EndorseInfo);
+
+  return totalLength;
+
+}
+
+const Block&
+EndorseInfo::wireEncode() const
+{
+  ndn::EncodingEstimator estimator;
+  size_t estimatedSize = wireEncode(estimator);
+
+  ndn::EncodingBuffer buffer(estimatedSize, 0);
+  wireEncode(buffer);
+
+  m_wire = buffer.block();
+  m_wire.parse();
+
+  return m_wire;
+}
+
+void
+EndorseInfo::wireDecode(const Block& endorseWire)
+{
+  m_wire = endorseWire;
+  m_wire.parse();
+  m_endorsements.clear();
+
+  if (m_wire.type() != tlv::EndorseInfo)
+    throw Error("Unexpected TLV number when decoding endorse info packet");
+
+  // Endorsement
+  Block::element_const_iterator i = m_wire.elements_begin();
+  if (i == m_wire.elements_end())
+    throw Error("Missing Endorsement");
+  if (i->type() != tlv::Endorsement)
+    throw Error("Expect Endorsement but get TLV Type " + std::to_string(i->type()));
+
+  while (i != m_wire.elements_end() && i->type() == tlv::Endorsement) {
+    Endorsement endorsement;
+    Block temp = *i;
+    temp.parse();
+    Block::element_const_iterator j = temp.elements_begin();
+
+    // Endorse Type
+    if (j == temp.elements_end())
+      throw Error("Missing Endorse Type");
+    if (j->type() != tlv::EndorseType)
+      throw Error("Expect Endorse Type but get TLV Type " + std::to_string(j->type()));
+
+    endorsement.type = std::string(reinterpret_cast<const char* >(j->value()),
+                                   j->value_size());;
+    ++j;
+
+    // Endorse Value
+    if (j == temp.elements_end())
+      throw Error("Missing Endorse Value");
+    if (j->type() != tlv::EndorseValue)
+      throw Error("Expect Endorse Value but get TLV Type " + std::to_string(j->type()));
+
+    endorsement.value = std::string(reinterpret_cast<const char* >(j->value()),
+                                    j->value_size());
+    ++j;
+
+    // Endorse Count
+    if (j == temp.elements_end())
+      throw Error("Missing Endorse Count");
+    if (j->type() != tlv::EndorseCount)
+      throw Error("Expect Endorse Count but get TLV Type " + std::to_string(j->type()));
+
+    endorsement.count = std::string(reinterpret_cast<const char* >(j->value()),
+                                    j->value_size());
+    ++j;
+    if (j != temp.elements_end()) {
+      throw Error("Unexpected element");
+    }
+    m_endorsements.push_back(endorsement);
+    ++i;
+  }
+
+  if (i != m_wire.elements_end()) {
+      throw Error("Unexpected element");
+  }
+}
+
+void
+EndorseInfo::addEndorsement(const std::string& type, const std::string& value,
+                            const std::string& count) {
+  Endorsement endorsement;
+  endorsement.type = type;
+  endorsement.value = value;
+  endorsement.count = count;
+  m_endorsements.push_back(endorsement);
+}
+
+} // namespace chronochat