Index: oak-blob-cloud/src/test/java/org/apache/jackrabbit/oak/blob/cloud/aws/s3/S3DataStoreStatsTest.java
===================================================================
--- oak-blob-cloud/src/test/java/org/apache/jackrabbit/oak/blob/cloud/aws/s3/S3DataStoreStatsTest.java	(revision 1783886)
+++ oak-blob-cloud/src/test/java/org/apache/jackrabbit/oak/blob/cloud/aws/s3/S3DataStoreStatsTest.java	(working copy)
@@ -108,7 +108,7 @@
 
     private String getIdForInputStream(final InputStream in)
         throws Exception {
-        MessageDigest digest = MessageDigest.getInstance("SHA-1");
+        MessageDigest digest = MessageDigest.getInstance("SHA-256");
         OutputStream output = new DigestOutputStream(new NullOutputStream(), digest);
         try {
             IOUtils.copyLarge(in, output);
Index: oak-core/src/main/java/org/apache/jackrabbit/oak/plugins/blob/AbstractSharedCachingDataStore.java
===================================================================
--- oak-core/src/main/java/org/apache/jackrabbit/oak/plugins/blob/AbstractSharedCachingDataStore.java	(revision 1783886)
+++ oak-core/src/main/java/org/apache/jackrabbit/oak/plugins/blob/AbstractSharedCachingDataStore.java	(working copy)
@@ -84,7 +84,7 @@
     /**
      * The digest algorithm used to uniquely identify records.
      */
-    private static final String DIGEST = "SHA-1";
+    private static final String DIGEST = "SHA-256";
 
     /**
      * The root path
@@ -246,7 +246,7 @@
             }
 
             DataIdentifier identifier = new DataIdentifier(encodeHexString(digest.digest()));
-            LOG.debug("SHA1 of [{}], length =[{}] took [{}] ms ", identifier, length,
+            LOG.debug("SHA-256 of [{}], length =[{}] took [{}] ms ", identifier, length,
                 watch.elapsed(TimeUnit.MILLISECONDS));
 
             // asynchronously stage for upload if the size limit of staging cache permits
Index: oak-core/src/test/java/org/apache/jackrabbit/oak/plugins/blob/CachingDataStoreTest.java
===================================================================
--- oak-core/src/test/java/org/apache/jackrabbit/oak/plugins/blob/CachingDataStoreTest.java	(revision 1783886)
+++ oak-core/src/test/java/org/apache/jackrabbit/oak/plugins/blob/CachingDataStoreTest.java	(working copy)
@@ -434,7 +434,7 @@
         OutputStream output = null;
         try {
             in = new FileInputStream(f);
-            MessageDigest digest = MessageDigest.getInstance("SHA-1");
+            MessageDigest digest = MessageDigest.getInstance("SHA-256");
             output = new DigestOutputStream(new NullOutputStream(), digest);
             IOUtils.copyLarge(in, output);
             return encodeHexString(digest.digest());
Index: oak-core/src/test/java/org/apache/jackrabbit/oak/plugins/blob/ConsolidatedDataStoreStatsTest.java
===================================================================
--- oak-core/src/test/java/org/apache/jackrabbit/oak/plugins/blob/ConsolidatedDataStoreStatsTest.java	(revision 1783886)
+++ oak-core/src/test/java/org/apache/jackrabbit/oak/plugins/blob/ConsolidatedDataStoreStatsTest.java	(working copy)
@@ -154,7 +154,7 @@
 
     private String getIdForInputStream(final InputStream in)
         throws Exception {
-        MessageDigest digest = MessageDigest.getInstance("SHA-1");
+        MessageDigest digest = MessageDigest.getInstance("SHA-256");
         OutputStream output = new DigestOutputStream(new NullOutputStream(), digest);
         try {
             IOUtils.copyLarge(in, output);