SERVER-27748 Implement LogicalTimeMetadata

4 files changed, 6 insertions, 5 deletions

diff --git a/src/mongo/db/SConscript b/src/mongo/db/SConscript
index 55ea57fe7fc..20aa7fe127e 100644
--- a/src/mongo/db/SConscript
+++ b/src/mongo/db/SConscript
@@ -941,6 +941,7 @@ env.Library(
     ],
     LIBDEPS=[
         'logical_time',
+        '$BUILD_DIR/mongo/crypto/sha1_block',
     ],
 )
 
diff --git a/src/mongo/db/signed_logical_time.cpp b/src/mongo/db/signed_logical_time.cpp
index bcfb89f027a..16404950ac5 100644
--- a/src/mongo/db/signed_logical_time.cpp
+++ b/src/mongo/db/signed_logical_time.cpp
@@ -34,7 +34,7 @@ namespace mongo {
 
 std::string SignedLogicalTime::toString() const {
     StringBuilder buf;
-    buf << _time.toString() << "|" << _proof;
+    buf << _time.toString() << "|" << _proof.toString();
     return buf.str();
 }
 
diff --git a/src/mongo/db/signed_logical_time.h b/src/mongo/db/signed_logical_time.h
index 52cf1230e58..7b96e51df79 100644
--- a/src/mongo/db/signed_logical_time.h
+++ b/src/mongo/db/signed_logical_time.h
@@ -36,7 +36,7 @@ namespace mongo {
 
 /**
  * The SignedLogicalTime class is a pair of value i.e. time and a signature i.e. _proof
- * The class is immutable and is used to hold the cryptogrphically protected LogicalTime.
+ * The class is immutable and is used to hold the cryptographically protected LogicalTime.
  */
 class SignedLogicalTime {
 public:
diff --git a/src/mongo/db/time_proof_service.h b/src/mongo/db/time_proof_service.h
index bc43e1ceee3..5be6bf46e38 100644
--- a/src/mongo/db/time_proof_service.h
+++ b/src/mongo/db/time_proof_service.h
@@ -29,6 +29,7 @@
 #pragma once
 
 #include "mongo/base/status.h"
+#include "mongo/crypto/sha1_block.h"
 #include "mongo/db/logical_time.h"
 
 namespace mongo {
@@ -40,14 +41,13 @@ namespace mongo {
 class TimeProofService {
 public:
     // This type must be synchronized with the library that generates SHA1 or other proof.
-    using TimeProof = std::string;
+    using TimeProof = SHA1Block;
 
     /**
      *  Returns the proof matching the time argument.
      */
     TimeProof getProof(LogicalTime time) {
-        TimeProof proof = "12345678901234567890";
-        return proof;
+        return SHA1Block();
     }
 
     /**