security: get KeyDigest from PublicKey.
Change-Id: Ibb7cf0aba262dbb80d5ea1d2da02318963c0f417
Refs: #1964
diff --git a/src/security/public-key.cpp b/src/security/public-key.cpp
index 801fe6c..07b8137 100644
--- a/src/security/public-key.cpp
+++ b/src/security/public-key.cpp
@@ -25,6 +25,7 @@
#include "public-key.hpp"
#include "../encoding/oid.hpp"
+#include "../util/crypto.hpp"
#include "cryptopp.hpp"
namespace ndn {
@@ -41,6 +42,22 @@
decode(src);
}
+const Block&
+PublicKey::computeDigest() const
+{
+ if (m_key.empty())
+ throw Error("Public key is empty");
+
+ if (m_digest.hasWire())
+ return m_digest;
+ else {
+ m_digest = Block(tlv::KeyDigest, crypto::sha256(m_key.buf(), m_key.size()));
+ m_digest.encode();
+ return m_digest;
+ }
+}
+
+
void
PublicKey::encode(CryptoPP::BufferedTransformation& out) const
{
@@ -105,6 +122,8 @@
m_type = KEY_TYPE_NULL;
throw Error("PublicKey decoding error");
}
+
+ m_digest.reset();
}
// Blob