diff --git a/tests/data/test600 b/tests/data/test600
index e7fa16470..1f3f6011c 100644
--- a/tests/data/test600
+++ b/tests/data/test600
@@ -24,7 +24,7 @@ sftp
 SFTP retrieval
  </name>
  <command>
---key curl_client_key --pubkey curl_client_key.pub -u %USER: sftp://%HOSTIP:%SSHPORT%PWD/log/file600.txt
+--key curl_client_key --pubkey curl_client_key.pub -u %USER: sftp://%HOSTIP:%SSHPORT%PWD/log/file600.txt --insecure
 </command>
 <file name="log/file600.txt">
 Test data
diff --git a/tests/data/test601 b/tests/data/test601
index c74c619ed..8e765a8ec 100644
--- a/tests/data/test601
+++ b/tests/data/test601
@@ -24,7 +24,7 @@ scp
 SCP retrieval
  </name>
  <command>
---key curl_client_key --pubkey curl_client_key.pub -u %USER: scp://%HOSTIP:%SSHPORT%PWD/log/file601.txt
+--key curl_client_key --pubkey curl_client_key.pub -u %USER: scp://%HOSTIP:%SSHPORT%PWD/log/file601.txt --insecure
 </command>
 <file name="log/file601.txt">
 Test data
diff --git a/tests/data/test602 b/tests/data/test602
index 40aacce5f..6b75feb63 100644
--- a/tests/data/test602
+++ b/tests/data/test602
@@ -21,7 +21,7 @@ sftp
 SFTP put
  </name>
  <command>
---key curl_client_key --pubkey curl_client_key.pub -u %USER: -T log/file602.txt sftp://%HOSTIP:%SSHPORT%PWD/log/upload.602
+--key curl_client_key --pubkey curl_client_key.pub -u %USER: -T log/file602.txt sftp://%HOSTIP:%SSHPORT%PWD/log/upload.602 --insecure
 </command>
 <file name="log/file602.txt">
 Test data
diff --git a/tests/data/test603 b/tests/data/test603
index 9124f7801..efa7d2ed0 100644
--- a/tests/data/test603
+++ b/tests/data/test603
@@ -21,7 +21,7 @@ scp
 SCP upload
  </name>
  <command>
---key curl_client_key --pubkey curl_client_key.pub -u %USER: -T log/file603.txt scp://%HOSTIP:%SSHPORT%PWD/log/upload.603
+--key curl_client_key --pubkey curl_client_key.pub -u %USER: -T log/file603.txt scp://%HOSTIP:%SSHPORT%PWD/log/upload.603 --insecure
 </command>
 <file name="log/file603.txt">
 Test data
diff --git a/tests/data/test604 b/tests/data/test604
index c55a38011..2bcf7d1ad 100644
--- a/tests/data/test604
+++ b/tests/data/test604
@@ -16,7 +16,7 @@ sftp
 SFTP retrieval of nonexistent file
  </name>
  <command>
---key curl_client_key --pubkey curl_client_key.pub -u %USER: sftp://%HOSTIP:%SSHPORT%PWD/not-a-valid-file-moooo
+--key curl_client_key --pubkey curl_client_key.pub -u %USER: sftp://%HOSTIP:%SSHPORT%PWD/not-a-valid-file-moooo --insecure
 </command>
 </client>
 
diff --git a/tests/data/test605 b/tests/data/test605
index 64d0a1e64..1c162fca5 100644
--- a/tests/data/test605
+++ b/tests/data/test605
@@ -16,7 +16,7 @@ scp
 SCP retrieval of nonexistent file
  </name>
  <command>
---key curl_client_key --pubkey curl_client_key.pub -u %USER: scp://%HOSTIP:%SSHPORT%PWD/not-a-valid-file-moooo
+--key curl_client_key --pubkey curl_client_key.pub -u %USER: scp://%HOSTIP:%SSHPORT%PWD/not-a-valid-file-moooo --insecure
 </command>
 </client>
 
diff --git a/tests/data/test606 b/tests/data/test606
index 6f3b5fc2c..80a82e9a9 100644
--- a/tests/data/test606
+++ b/tests/data/test606
@@ -16,7 +16,7 @@ sftp
 SFTP invalid user login
  </name>
  <command>
---key curl_client_key --pubkey curl_client_key.pub -u not-a-valid-user: sftp://%HOSTIP:%SSHPORT%PWD/not-a-valid-file-moooo
+--key curl_client_key --pubkey curl_client_key.pub -u not-a-valid-user: sftp://%HOSTIP:%SSHPORT%PWD/not-a-valid-file-moooo --insecure
 </command>
 </client>
 
diff --git a/tests/data/test607 b/tests/data/test607
index 503c42694..e34098743 100644
--- a/tests/data/test607
+++ b/tests/data/test607
@@ -16,7 +16,7 @@ scp
 SCP invalid user login
  </name>
  <command>
---key curl_client_key --pubkey curl_client_key.pub -u not-a-valid-user: scp://%HOSTIP:%SSHPORT%PWD/not-a-valid-file-moooo
+--key curl_client_key --pubkey curl_client_key.pub -u not-a-valid-user: scp://%HOSTIP:%SSHPORT%PWD/not-a-valid-file-moooo --insecure
 </command>
 </client>
 
diff --git a/tests/data/test608 b/tests/data/test608
index 8c70444a1..c904bff9f 100644
--- a/tests/data/test608
+++ b/tests/data/test608
@@ -24,7 +24,7 @@ sftp
 SFTP post-quote rename
  </name>
  <command>
---key curl_client_key --pubkey curl_client_key.pub -u %USER: -Q "-rename %PWD/log/file608.txt %PWD/log/file608-renamed.txt" sftp://%HOSTIP:%SSHPORT%PWD/log/file608.txt
+--key curl_client_key --pubkey curl_client_key.pub -u %USER: -Q "-rename %PWD/log/file608.txt %PWD/log/file608-renamed.txt" sftp://%HOSTIP:%SSHPORT%PWD/log/file608.txt --insecure
 </command>
 # Verify that the file was renamed properly, then rename the file back to what
 # it was so the verify section works and the file can be cleaned up.
diff --git a/tests/data/test609 b/tests/data/test609
index d998a3bdf..59a217520 100644
--- a/tests/data/test609
+++ b/tests/data/test609
@@ -25,7 +25,7 @@ sftp
 SFTP post-quote mkdir failure
  </name>
  <command>
---key curl_client_key --pubkey curl_client_key.pub -u %USER: -Q "-mkdir %PWD/log/file609.txt" sftp://%HOSTIP:%SSHPORT%PWD/log/file609.txt
+--key curl_client_key --pubkey curl_client_key.pub -u %USER: -Q "-mkdir %PWD/log/file609.txt" sftp://%HOSTIP:%SSHPORT%PWD/log/file609.txt --insecure
 </command>
 <file name="log/file609.txt">
 Test file for mkdir test
diff --git a/tests/data/test610 b/tests/data/test610
index b81acaeb4..a7c2ce389 100644
--- a/tests/data/test610
+++ b/tests/data/test610
@@ -27,7 +27,7 @@ perl %SRCDIR/libtest/test610.pl mkdir %PWD/log/test610.dir
 SFTP post-quote rmdir
  </name>
  <command>
---key curl_client_key --pubkey curl_client_key.pub -u %USER: -Q "-rmdir %PWD/log/test610.dir" sftp://%HOSTIP:%SSHPORT%PWD/log/file610.txt
+--key curl_client_key --pubkey curl_client_key.pub -u %USER: -Q "-rmdir %PWD/log/test610.dir" sftp://%HOSTIP:%SSHPORT%PWD/log/file610.txt --insecure
 </command>
 <postcheck>
 perl %SRCDIR/libtest/test610.pl gone %PWD/log/test610.dir
diff --git a/tests/data/test611 b/tests/data/test611
index 0016edc32..bfdddde3a 100644
--- a/tests/data/test611
+++ b/tests/data/test611
@@ -27,7 +27,7 @@ perl %SRCDIR/libtest/test610.pl mkdir %PWD/log/test611.dir
 SFTP post-quote rename
  </name>
  <command>
---key curl_client_key --pubkey curl_client_key.pub -u %USER: -Q "-rename %PWD/log/test611.dir %PWD/log/test611.new" sftp://%HOSTIP:%SSHPORT%PWD/log/file611.txt
+--key curl_client_key --pubkey curl_client_key.pub -u %USER: -Q "-rename %PWD/log/test611.dir %PWD/log/test611.new" sftp://%HOSTIP:%SSHPORT%PWD/log/file611.txt --insecure
 </command>
 <postcheck>
 perl %SRCDIR/libtest/test610.pl rmdir %PWD/log/test611.new
diff --git a/tests/data/test612 b/tests/data/test612
index c9582b98d..a8f2a5c0b 100644
--- a/tests/data/test612
+++ b/tests/data/test612
@@ -24,7 +24,7 @@ sftp
 SFTP post-quote remove file
  </name>
  <command>
---key curl_client_key --pubkey curl_client_key.pub -u %USER: -T log/file612.txt -Q "-rm %PWD/log/file612.txt" sftp://%HOSTIP:%SSHPORT%PWD/log/upload.612
+--key curl_client_key --pubkey curl_client_key.pub -u %USER: -T log/file612.txt -Q "-rm %PWD/log/file612.txt" sftp://%HOSTIP:%SSHPORT%PWD/log/upload.612  --insecure
 </command>
 <postcheck>
 perl %SRCDIR/libtest/test610.pl gone %PWD/log/test612.txt
diff --git a/tests/data/test613 b/tests/data/test613
index db0534a5f..9b0b3fd35 100644
--- a/tests/data/test613
+++ b/tests/data/test613
@@ -31,7 +31,7 @@ perl %SRCDIR/libtest/test613.pl prepare %PWD/log/test613.dir
 SFTP directory retrieval
  </name>
  <command>
---key curl_client_key --pubkey curl_client_key.pub -u %USER: sftp://%HOSTIP:%SSHPORT%PWD/log/test613.dir/
+--key curl_client_key --pubkey curl_client_key.pub -u %USER: sftp://%HOSTIP:%SSHPORT%PWD/log/test613.dir/ --insecure
 </command>
 <postcheck>
 perl %SRCDIR/libtest/test613.pl postprocess %PWD/log/test613.dir %PWD/log/curl613.out
diff --git a/tests/data/test614 b/tests/data/test614
index 1767743cf..2184a22cf 100644
--- a/tests/data/test614
+++ b/tests/data/test614
@@ -32,7 +32,7 @@ perl %SRCDIR/libtest/test613.pl prepare %PWD/log/test614.dir
 SFTP pre-quote chmod
  </name>
  <command>
---key curl_client_key --pubkey curl_client_key.pub -u %USER: -Q "chmod 444 %PWD/log/test614.dir/plainfile.txt" sftp://%HOSTIP:%SSHPORT%PWD/log/test614.dir/
+--key curl_client_key --pubkey curl_client_key.pub -u %USER: -Q "chmod 444 %PWD/log/test614.dir/plainfile.txt" sftp://%HOSTIP:%SSHPORT%PWD/log/test614.dir/ --insecure
 </command>
 <postcheck>
 perl %SRCDIR/libtest/test613.pl postprocess %PWD/log/test614.dir %PWD/log/curl614.out
diff --git a/tests/data/test615 b/tests/data/test615
index 124982644..abe9902a3 100644
--- a/tests/data/test615
+++ b/tests/data/test615
@@ -20,7 +20,7 @@ perl %SRCDIR/libtest/test613.pl prepare %PWD/log/test615.dir
 SFTP put remote failure
  </name>
  <command>
---key curl_client_key --pubkey curl_client_key.pub -u %USER: -T log/file615.txt sftp://%HOSTIP:%SSHPORT%PWD/log/test615.dir/rofile.txt
+--key curl_client_key --pubkey curl_client_key.pub -u %USER: -T log/file615.txt sftp://%HOSTIP:%SSHPORT%PWD/log/test615.dir/rofile.txt --insecure
 </command>
 <postcheck>
 perl %SRCDIR/libtest/test613.pl postprocess %PWD/log/test615.dir
diff --git a/tests/data/test616 b/tests/data/test616
index 28e34026f..a6a225de9 100644
--- a/tests/data/test616
+++ b/tests/data/test616
@@ -23,7 +23,7 @@ sftp
 SFTP retrieval of empty file
  </name>
  <command>
---key curl_client_key --pubkey curl_client_key.pub -u %USER: sftp://%HOSTIP:%SSHPORT%PWD/log/file616.txt
+--key curl_client_key --pubkey curl_client_key.pub -u %USER: sftp://%HOSTIP:%SSHPORT%PWD/log/file616.txt --insecure
 </command>
 <file name="log/file616.txt">
 </file>
diff --git a/tests/data/test617 b/tests/data/test617
index acd7f7491..4b183e4f0 100644
--- a/tests/data/test617
+++ b/tests/data/test617
@@ -23,7 +23,7 @@ scp
 SCP retrieval of empty file
  </name>
  <command>
---key curl_client_key --pubkey curl_client_key.pub -u %USER: scp://%HOSTIP:%SSHPORT%PWD/log/file617.txt
+--key curl_client_key --pubkey curl_client_key.pub -u %USER: scp://%HOSTIP:%SSHPORT%PWD/log/file617.txt --insecure
 </command>
 <file name="log/file617.txt">
 </file>
diff --git a/tests/data/test618 b/tests/data/test618
index 673bdcbc6..d545d6282 100644
--- a/tests/data/test618
+++ b/tests/data/test618
@@ -15,7 +15,7 @@ sftp
 SFTP retrieval of two files
  </name>
  <command>
---key curl_client_key --pubkey curl_client_key.pub -u %USER: sftp://%HOSTIP:%SSHPORT%PWD/log/file618.txt sftp://%HOSTIP:%SSHPORT%PWD/log/file618.txt
+--key curl_client_key --pubkey curl_client_key.pub -u %USER: sftp://%HOSTIP:%SSHPORT%PWD/log/file618.txt sftp://%HOSTIP:%SSHPORT%PWD/log/file618.txt --insecure
 </command>
 <file name="log/file618.txt">
 Test data
diff --git a/tests/data/test619 b/tests/data/test619
index f43af52df..303266fc5 100644
--- a/tests/data/test619
+++ b/tests/data/test619
@@ -15,7 +15,7 @@ scp
 SCP retrieval of two files
  </name>
  <command>
---key curl_client_key --pubkey curl_client_key.pub -u %USER: scp://%HOSTIP:%SSHPORT%PWD/log/file619.txt scp://%HOSTIP:%SSHPORT%PWD/log/file619.txt
+--key curl_client_key --pubkey curl_client_key.pub -u %USER: scp://%HOSTIP:%SSHPORT%PWD/log/file619.txt scp://%HOSTIP:%SSHPORT%PWD/log/file619.txt --insecure
 </command>
 <file name="log/file619.txt">
 Test data
diff --git a/tests/data/test620 b/tests/data/test620
index f7a87d266..1750ab932 100644
--- a/tests/data/test620
+++ b/tests/data/test620
@@ -16,7 +16,7 @@ sftp
 SFTP retrieval of missing file followed by good file
  </name>
  <command>
---key curl_client_key --pubkey curl_client_key.pub -u %USER: sftp://%HOSTIP:%SSHPORT%PWD/log/not-a-valid-file-moooo sftp://%HOSTIP:%SSHPORT%PWD/log/file620.txt
+--key curl_client_key --pubkey curl_client_key.pub -u %USER: sftp://%HOSTIP:%SSHPORT%PWD/log/not-a-valid-file-moooo sftp://%HOSTIP:%SSHPORT%PWD/log/file620.txt --insecure
 </command>
 <file name="log/file620.txt">
 Test data
diff --git a/tests/data/test621 b/tests/data/test621
index 9ffbf3b14..c75a284ca 100644
--- a/tests/data/test621
+++ b/tests/data/test621
@@ -16,7 +16,7 @@ scp
 SCP retrieval of missing file followed by good file
  </name>
  <command>
---key curl_client_key --pubkey curl_client_key.pub -u %USER: scp://%HOSTIP:%SSHPORT%PWD/log/not-a-valid-file-moooo scp://%HOSTIP:%SSHPORT%PWD/log/file621.txt
+--key curl_client_key --pubkey curl_client_key.pub -u %USER: scp://%HOSTIP:%SSHPORT%PWD/log/not-a-valid-file-moooo scp://%HOSTIP:%SSHPORT%PWD/log/file621.txt --insecure
 </command>
 <file name="log/file621.txt">
 Test data
diff --git a/tests/data/test622 b/tests/data/test622
index e91a8adae..e5a769c1c 100644
--- a/tests/data/test622
+++ b/tests/data/test622
@@ -22,7 +22,7 @@ sftp
 SFTP put failure
  </name>
  <command>
---key curl_client_key --pubkey curl_client_key.pub -u %USER: -T log/file622.txt sftp://%HOSTIP:%SSHPORT%PWD/log/nonexistent-directory/nonexistent-file
+--key curl_client_key --pubkey curl_client_key.pub -u %USER: -T log/file622.txt sftp://%HOSTIP:%SSHPORT%PWD/log/nonexistent-directory/nonexistent-file --insecure
 </command>
 <file name="log/file622.txt">
 Test data
diff --git a/tests/data/test623 b/tests/data/test623
index c5b258dfd..38a41d215 100644
--- a/tests/data/test623
+++ b/tests/data/test623
@@ -22,7 +22,7 @@ scp
 SCP upload failure
  </name>
  <command>
---key curl_client_key --pubkey curl_client_key.pub -u %USER: -T log/file623.txt scp://%HOSTIP:%SSHPORT%PWD/log/nonexistent-directory/nonexistent-file
+--key curl_client_key --pubkey curl_client_key.pub -u %USER: -T log/file623.txt scp://%HOSTIP:%SSHPORT%PWD/log/nonexistent-directory/nonexistent-file --insecure
 </command>
 <file name="log/file623.txt">
 Test data
diff --git a/tests/data/test624 b/tests/data/test624
index 818c544a5..fa4ff08d7 100644
--- a/tests/data/test624
+++ b/tests/data/test624
@@ -22,7 +22,7 @@ sftp
 SFTP put with --ftp-create-dirs
  </name>
  <command>
---ftp-create-dirs --key curl_client_key --pubkey curl_client_key.pub -u %USER: -T log/file624.txt sftp://%HOSTIP:%SSHPORT%PWD/log/test624.dir/upload.624
+--ftp-create-dirs --key curl_client_key --pubkey curl_client_key.pub -u %USER: -T log/file624.txt sftp://%HOSTIP:%SSHPORT%PWD/log/test624.dir/upload.624 --insecure
 </command>
 <postcheck>
 perl %SRCDIR/libtest/test610.pl move %PWD/log/test624.dir/upload.624 %PWD/log/upload.624 rmdir %PWD/log/test624.dir
diff --git a/tests/data/test625 b/tests/data/test625
index ce4b8bc2c..b3ec738cf 100644
--- a/tests/data/test625
+++ b/tests/data/test625
@@ -22,7 +22,7 @@ sftp
 SFTP put with --ftp-create-dirs twice
  </name>
  <command>
---ftp-create-dirs --key curl_client_key --pubkey curl_client_key.pub -u %USER: -T log/file625.txt sftp://%HOSTIP:%SSHPORT%PWD/log/test625.a/upload.625 -T log/file625.txt sftp://%HOSTIP:%SSHPORT%PWD/log/test625.b/upload.625
+--ftp-create-dirs --key curl_client_key --pubkey curl_client_key.pub -u %USER: -T log/file625.txt sftp://%HOSTIP:%SSHPORT%PWD/log/test625.a/upload.625 -T log/file625.txt sftp://%HOSTIP:%SSHPORT%PWD/log/test625.b/upload.625 --insecure
 </command>
 <postcheck>
 perl %SRCDIR/libtest/test610.pl move %PWD/log/test625.a/upload.625 %PWD/log/upload.625 rmdir %PWD/log/test625.a rm %PWD/log/test625.b/upload.625 rmdir %PWD/log/test625.b
diff --git a/tests/data/test626 b/tests/data/test626
index 475b6d7dd..a8c2a6c22 100644
--- a/tests/data/test626
+++ b/tests/data/test626
@@ -22,7 +22,7 @@ sftp
 SFTP invalid quote command
  </name>
  <command>
---key curl_client_key --pubkey curl_client_key.pub -u %USER: -Q "invalid-command foo bar" sftp://%HOSTIP:%SSHPORT%PWD/log/file626.txt
+--key curl_client_key --pubkey curl_client_key.pub -u %USER: -Q "invalid-command foo bar" sftp://%HOSTIP:%SSHPORT%PWD/log/file626.txt --insecure
 </command>
 <file name="log/file626.txt">
 Test file for rename test
diff --git a/tests/data/test627 b/tests/data/test627
index 3d86e7b11..ae29d9b5a 100644
--- a/tests/data/test627
+++ b/tests/data/test627
@@ -24,7 +24,7 @@ sftp
 SFTP quote remove file with NOBODY
  </name>
  <command>
---key curl_client_key --pubkey curl_client_key.pub -u %USER: -I -Q "rm %PWD/log/file627.txt" sftp://%HOSTIP:%SSHPORT
+--key curl_client_key --pubkey curl_client_key.pub -u %USER: -I -Q "rm %PWD/log/file627.txt" sftp://%HOSTIP:%SSHPORT --insecure
 </command>
 <postcheck>
 perl %SRCDIR/libtest/test610.pl gone %PWD/log/test627.txt
diff --git a/tests/data/test628 b/tests/data/test628
index f24fe05ab..37a6f1c64 100644
--- a/tests/data/test628
+++ b/tests/data/test628
@@ -16,7 +16,7 @@ sftp
 SFTP invalid user login (password authentication)
  </name>
  <command>
--u not-a-valid-user: sftp://%HOSTIP:%SSHPORT%PWD/irrelevant-file
+-u not-a-valid-user: sftp://%HOSTIP:%SSHPORT%PWD/irrelevant-file  --insecure
 </command>
 </client>
 
diff --git a/tests/data/test629 b/tests/data/test629
index 621f7416f..0c1791494 100644
--- a/tests/data/test629
+++ b/tests/data/test629
@@ -16,7 +16,7 @@ scp
 SCP invalid user login (password authentication)
  </name>
  <command>
--u not-a-valid-user: scp://%HOSTIP:%SSHPORT%PWD/irrelevant-file
+-u not-a-valid-user: scp://%HOSTIP:%SSHPORT%PWD/irrelevant-file --insecure
 </command>
 </client>
 
diff --git a/tests/data/test630 b/tests/data/test630
index 90d364b38..e2f6ff95f 100644
--- a/tests/data/test630
+++ b/tests/data/test630
@@ -17,7 +17,7 @@ sftp
 SFTP incorrect host key
  </name>
  <command>
---hostpubmd5 00000000000000000000000000000000 --key curl_client_key --pubkey curl_client_key.pub -u %USER: sftp://%HOSTIP:%SSHPORT%PWD/log/irrelevant-file
+--hostpubmd5 00000000000000000000000000000000 --key curl_client_key --pubkey curl_client_key.pub -u %USER: sftp://%HOSTIP:%SSHPORT%PWD/log/irrelevant-file --insecure
 </command>
 </client>
 
diff --git a/tests/data/test631 b/tests/data/test631
index f3d8146a0..47b0acbb5 100644
--- a/tests/data/test631
+++ b/tests/data/test631
@@ -17,7 +17,7 @@ scp
 SCP incorrect host key
  </name>
  <command>
---hostpubmd5 00000000000000000000000000000000 --key curl_client_key --pubkey curl_client_key.pub -u %USER: scp://%HOSTIP:%SSHPORT%PWD/log/irrelevant-file
+--hostpubmd5 00000000000000000000000000000000 --key curl_client_key --pubkey curl_client_key.pub -u %USER: scp://%HOSTIP:%SSHPORT%PWD/log/irrelevant-file --insecure
 </command>
 </client>
 
diff --git a/tests/data/test632 b/tests/data/test632
index 1b2ad31cb..2da0c798b 100644
--- a/tests/data/test632
+++ b/tests/data/test632
@@ -20,7 +20,7 @@ sftp
 SFTP syntactically invalid host key
  </name>
  <command>
---hostpubmd5 00 --key curl_client_key --pubkey curl_client_key.pub -u %USER: sftp://%HOSTIP:%SSHPORT%PWD/log/irrelevant-file
+--hostpubmd5 00 --key curl_client_key --pubkey curl_client_key.pub -u %USER: sftp://%HOSTIP:%SSHPORT%PWD/log/irrelevant-file --insecure
 </command>
 </client>
 
diff --git a/tests/data/test633 b/tests/data/test633
index 8bea1c4d2..adfd109e0 100644
--- a/tests/data/test633
+++ b/tests/data/test633
@@ -24,7 +24,7 @@ sftp
 SFTP retrieval with byte range
  </name>
  <command>
---key curl_client_key --pubkey curl_client_key.pub -u %USER: sftp://%HOSTIP:%SSHPORT%PWD/log/file633.txt -r 5-9
+--key curl_client_key --pubkey curl_client_key.pub -u %USER: sftp://%HOSTIP:%SSHPORT%PWD/log/file633.txt -r 5-9 --insecure
 </command>
 <file name="log/file633.txt">
 Test data
diff --git a/tests/data/test634 b/tests/data/test634
index a9c1d40f0..1fbb87925 100644
--- a/tests/data/test634
+++ b/tests/data/test634
@@ -25,7 +25,7 @@ sftp
 SFTP retrieval with byte range past end of file
  </name>
  <command>
---key curl_client_key --pubkey curl_client_key.pub -u %USER: sftp://%HOSTIP:%SSHPORT%PWD/log/file634.txt -r 5-99
+--key curl_client_key --pubkey curl_client_key.pub -u %USER: sftp://%HOSTIP:%SSHPORT%PWD/log/file634.txt -r 5-99 --insecure
 </command>
 <file name="log/file634.txt">
 Test data
diff --git a/tests/data/test635 b/tests/data/test635
index 7ef3a5d6c..a54929d4c 100644
--- a/tests/data/test635
+++ b/tests/data/test635
@@ -24,7 +24,7 @@ sftp
 SFTP retrieval with byte range relative to end of file
  </name>
  <command>
---key curl_client_key --pubkey curl_client_key.pub -u %USER: sftp://%HOSTIP:%SSHPORT%PWD/log/file635.txt -r -9
+--key curl_client_key --pubkey curl_client_key.pub -u %USER: sftp://%HOSTIP:%SSHPORT%PWD/log/file635.txt -r -9 --insecure
 </command>
 <file name="log/file635.txt">
 Test data
diff --git a/tests/data/test636 b/tests/data/test636
index 1a9489120..df4ee7e63 100644
--- a/tests/data/test636
+++ b/tests/data/test636
@@ -25,7 +25,7 @@ sftp
 SFTP retrieval with X- byte range
  </name>
  <command>
---key curl_client_key --pubkey curl_client_key.pub -u %USER: sftp://%HOSTIP:%SSHPORT%PWD/log/file636.txt -r 5-
+--key curl_client_key --pubkey curl_client_key.pub -u %USER: sftp://%HOSTIP:%SSHPORT%PWD/log/file636.txt -r 5- --insecure
 </command>
 <file name="log/file636.txt">
 Test data
diff --git a/tests/data/test637 b/tests/data/test637
index 258c4995f..ef0c81435 100644
--- a/tests/data/test637
+++ b/tests/data/test637
@@ -23,7 +23,7 @@ sftp
 SFTP retrieval with invalid X- range
  </name>
  <command>
---key curl_client_key --pubkey curl_client_key.pub -u %USER: sftp://%HOSTIP:%SSHPORT%PWD/log/file637.txt -r 99-
+--key curl_client_key --pubkey curl_client_key.pub -u %USER: sftp://%HOSTIP:%SSHPORT%PWD/log/file637.txt -r 99- --insecure
 </command>
 <file name="log/file637.txt">
 Test data