diff --git a/src/.ks-upa.swp b/src/.ks-upa.swp
new file mode 100644
index 0000000..428bd37
Binary files /dev/null and b/src/.ks-upa.swp differ
diff --git a/src/.ks-upf.swp b/src/.ks-upf.swp
new file mode 100644
index 0000000..5ace833
Binary files /dev/null and b/src/.ks-upf.swp differ
diff --git a/src/.ks-upr.swp b/src/.ks-upr.swp
new file mode 100644
index 0000000..d4e7260
Binary files /dev/null and b/src/.ks-upr.swp differ
diff --git a/src/.ks-upv.swp b/src/.ks-upv.swp
new file mode 100644
index 0000000..3fb17ed
Binary files /dev/null and b/src/.ks-upv.swp differ
diff --git a/src/ks-upa b/src/ks-upa
index cefd97f..450e410 100755
--- a/src/ks-upa
+++ b/src/ks-upa
@@ -1,11 +1,11 @@
 #!/bin/bash
 
-#####################################################################
-# ks-upa (ks-tools) - Upload audio file(s) to server with rsync+ssh #
-# Date: 22-01-2022                                                  #
-# Author: q3aql                                                     #
-# Contact: q3aql@duck.com                                           #
-#####################################################################
+########################################################################
+# ks-upa (ks-tools) - Upload audio file(s) to server with scp or rsync #
+# Date: 22-01-2022                                                     #
+# Author: q3aql                                                        #
+# Contact: q3aql@duck.com                                              #
+########################################################################
 VERSION="8.2"
 M_DATE="220122"
 
@@ -134,14 +134,23 @@ function showPathFile() {
 # check_fingerprint <user> <server>
 function check_fingerprint() {
   fingerprint_host=$(cat ${HOME}/.ssh/known_hosts 2> /dev/null | grep -o "${2}")
+  toolSelected=$(cat ${dirConfig}/ks-upload-tool | grep "rsa")
   if [ -z "${fingerprint_host}" ] ; then
     # Run command for upload on Windows (Cygwin)
     if [ "${cygwin}" == "yes" ] ; then
-      echo "* INFO: First connection to a server requires saving the fingerprint."
-      echo "* INFO: Only the first time you will have to enter the password."
-      echo ""
-      /usr/bin/ssh ${1}@${2} echo "* Connection successfuly" &> /dev/null
-      OUTPUT=$?
+      if [ -z "${toolSelected}" ] ; then
+        echo "* INFO: First connection to a server requires saving the fingerprint."
+        echo "* INFO: Only the first time you will have to enter the password."
+        echo ""
+        /usr/bin/ssh ${1}@${2} echo "* Connection successfuly" &> /dev/null
+        OUTPUT=$?
+      else
+        echo "* INFO: First connection to a server requires saving the fingerprint."
+        echo "* INFO: Only the first time you will have to enter the password."
+        echo ""
+        /usr/bin/ssh -o HostKeyAlgorithms=+ssh-rsa ${1}@${2} echo "* Connection successfuly" &> /dev/null
+        OUTPUT=$?
+      fi
       if [ ${OUTPUT} -ne 0 ] ; then
         echo ""
         echo "+ ERROR: There has been a failure to connect to the server."
@@ -153,11 +162,19 @@ function check_fingerprint() {
       fi
     # Run command for upload on Unix systems
     else
-      echo "* INFO: First connection to a server requires saving the fingerprint."
-      echo "* INFO: Only the first time you will have to enter the password."
-      echo ""
-      ssh ${1}@${2} echo "* Connection successfuly" &> /dev/null
-      OUTPUT=$?
+      if [ -z "${toolSelected}" ] ; then
+        echo "* INFO: First connection to a server requires saving the fingerprint."
+        echo "* INFO: Only the first time you will have to enter the password."
+        echo ""
+        ssh ${1}@${2} echo "* Connection successfuly" &> /dev/null
+        OUTPUT=$?
+      else
+        echo "* INFO: First connection to a server requires saving the fingerprint."
+        echo "* INFO: Only the first time you will have to enter the password."
+        echo ""
+        ssh -o HostKeyAlgorithms=+ssh-rsa ${1}@${2} echo "* Connection successfuly" &> /dev/null
+        OUTPUT=$?
+      fi
       if [ ${OUTPUT} -ne 0 ] ; then
         echo ""
         echo "+ ERROR: There has been a failure to connect to the server."
@@ -184,6 +201,13 @@ function sendFile() {
         /usr/bin/rsync --progress -azL --rsh="/usr/bin/sshpass -p ${1} /usr/bin/ssh -l ${3}" ${2} ${4}:${5} 2> /dev/null
         /usr/bin/sshpass -p ${1} /usr/bin/ssh ${3}@${4} rm -rf ${5}/.${6}.* &> /dev/null
         OUTPUT=$?
+      elif [ "${toolSelected}" == "rsync-rsa" ] ; then
+        /usr/bin/rsync --progress -azL --rsh="/usr/bin/sshpass -p ${1} /usr/bin/ssh -o HostKeyAlgorithms=+ssh-rsa -l ${3}" ${2} ${4}:${5} 2> /dev/null
+        /usr/bin/sshpass -p ${1} /usr/bin/ssh -o HostKeyAlgorithms=+ssh-rsa ${3}@${4} rm -rf ${5}/.${6}.* &> /dev/null
+        OUTPUT=$?
+      elif [ "${toolSelected}" == "scp-rsa" ] ; then
+        /usr/bin/sshpass -p ${1} /usr/bin/scp -o HostKeyAlgorithms=+ssh-rsa ${2} ${3}@${4}:${5} 2> /dev/null
+        OUTPUT=$?
       else
         /usr/bin/sshpass -p ${1} /usr/bin/scp ${2} ${3}@${4}:${5} 2> /dev/null
         OUTPUT=$?
@@ -194,6 +218,13 @@ function sendFile() {
         rsync --progress -azL --rsh="sshpass -p ${1} ssh -l ${3}" ${2} ${4}:${5} 2> /dev/null
         sshpass -p ${1} ssh ${3}@${4} rm -rf ${5}/.${6}.* &> /dev/null
         OUTPUT=$?
+      elif [ "${toolSelected}" == "rsync-rsa" ] ; then
+        rsync --progress -azL --rsh="sshpass -p ${1} ssh -o HostKeyAlgorithms=+ssh-rsa -l ${3}" ${2} ${4}:${5} 2> /dev/null
+        sshpass -p ${1} ssh -o HostKeyAlgorithms=+ssh-rsa ${3}@${4} rm -rf ${5}/.${6}.* &> /dev/null
+        OUTPUT=$?
+      elif [ "${toolSelected}" == "scp-rsa" ] ; then
+        sshpass -p ${1} scp -o HostKeyAlgorithms=+ssh-rsa ${2} ${3}@${4}:${5} 2> /dev/null
+        OUTPUT=$?
       else
         sshpass -p ${1} scp ${2} ${3}@${4}:${5} 2> /dev/null
         OUTPUT=$?
@@ -220,15 +251,28 @@ function checkChecksum() {
   countChecksum=0
   echo -n "Checking checksum... " && sleep 4
   echo ""
+  toolSelected=$(cat ${dirConfig}/ks-upload-tool | grep "rsa")
   while [ ${correct} -eq 0 ] ; do
     if [ "${cygwin}" == "yes" ] ; then
-      checksumLocal=$(/usr/bin/md5sum ${2})
-      checksumServer=$(/usr/bin/sshpass -p ${1} /usr/bin/ssh ${3}@${4} md5sum ${5} 2> /dev/null)
-      OUTPUT=$?
+      if [ -z "${toolSelected}" ] ; then
+        checksumLocal=$(/usr/bin/md5sum ${2})
+        checksumServer=$(/usr/bin/sshpass -p ${1} /usr/bin/ssh ${3}@${4} md5sum ${5} 2> /dev/null)
+        OUTPUT=$?
+      else
+        checksumLocal=$(/usr/bin/md5sum ${2})
+        checksumServer=$(/usr/bin/sshpass -p ${1} /usr/bin/ssh -o HostKeyAlgorithms=+ssh-rsa ${3}@${4} md5sum ${5} 2> /dev/null)
+        OUTPUT=$?
+      fi
     else
-      checksumLocal=$(md5sum ${2})
-      checksumServer=$(sshpass -p ${1} ssh ${3}@${4} md5sum ${5} 2> /dev/null)
-      OUTPUT=$?
+      if [ -z "${toolSelected}" ] ; then
+        checksumLocal=$(md5sum ${2})
+        checksumServer=$(sshpass -p ${1} ssh ${3}@${4} md5sum ${5} 2> /dev/null)
+        OUTPUT=$?
+      else
+        checksumLocal=$(md5sum ${2})
+        checksumServer=$(sshpass -p ${1} ssh -o HostKeyAlgorithms=+ssh-rsa ${3}@${4} md5sum ${5} 2> /dev/null)
+        OUTPUT=$?
+      fi
     fi
     if [ ${OUTPUT} -ne 0 ] ; then
       echo "Failed to get checksum for ${5}"
@@ -416,11 +460,25 @@ function editConfig() {
       dirLocal=${DIR}
       echo ${dirLocal} > ${dirConfig}/ks-upload-dirlocal
     elif [ "${EDIT}" == "6" ] ; then
-      echo -n "* [Default: scp] Type upload tool (scp or rsync): " ; read TOOL
+      echo ""
+      echo "* Available options:"
+      echo ""
+      echo "- scp"
+      echo "- rsync"
+      echo "- scp-rsa (legacy RSA algorithm)"
+      echo "- rsync-rsa (legacy RSA algorithm)"
+      echo ""
+      echo -n "* [Default: scp] Type upload tool (scp/rsync/scp-rsa/rsync-rsa): " ; read TOOL
       if [ -z "${TOOL}" ] ; then
         upvTool="scp"
+      elif [ "${TOOL}" == "rsync" ] ; then
+        upvTool="rsync"
+      elif [ "${TOOL}" == "rsync-rsa" ] ; then
+        upvTool="rsync-rsa"
+      elif [ "${TOOL}" == "scp-rsa" ] ; then
+        upvTool="scp-rsa"
       else  
-        upvTool=${TOOL}
+        upvTool="scp"
       fi
       echo ${upvTool} > ${dirConfig}/ks-upload-tool
     elif [ "${EDIT}" == "7" ] ; then
@@ -504,7 +562,7 @@ function showHelp() {
   echo ""
   echo "* ks-upa (ks-tools) v${VERSION} (${M_DATE})"
   echo ""
-  echo "- Upload audio file(s) to server with rsync+ssh"
+  echo "- Upload audio file(s) to server with scp or rsync"
   echo ""
   echo "+ Syntax:"
   echo ""
@@ -673,6 +731,11 @@ elif [ "${1}" == "-i" ] ; then
       echo "* IMPORTANT: It's possible switch to 'rsync' if you wish (Command: ks-upv -e)"
       echo ""
     fi
+    if [ "${current_tool}" == "scp-rsa" ] ; then
+      echo "* NOTE: You are using 'scp' to upload files and no progress will be shown."
+      echo "* IMPORTANT: It's possible switch to 'rsync' if you wish (Command: ks-upv -e)"
+      echo ""
+    fi
     while [ ${count} -le ${totalFiles} ] ; do
       fullNameFile=$(showFile ${count})
       fullPathFile=$(showPathFile ${count})
diff --git a/src/ks-upf b/src/ks-upf
index ae57d17..d7c8c0d 100755
--- a/src/ks-upf
+++ b/src/ks-upf
@@ -1,11 +1,11 @@
 #!/bin/bash
 
-######################################################################
-# ks-upf (ks-tools) - Upload common file(s) to server with rsync+ssh #
-# Date: 22-01-2022                                                   #
-# Author: q3aql                                                      #
-# Contact: q3aql@duck.com                                            #
-######################################################################
+#########################################################################
+# ks-upf (ks-tools) - Upload common file(s) to server with scp or rsync #
+# Date: 22-01-2022                                                      #
+# Author: q3aql                                                         #
+# Contact: q3aql@duck.com                                               #
+#########################################################################
 VERSION="8.2"
 M_DATE="220122"
 
@@ -161,14 +161,23 @@ function showPathFile() {
 # check_fingerprint <user> <server>
 function check_fingerprint() {
   fingerprint_host=$(cat ${HOME}/.ssh/known_hosts 2> /dev/null | grep -o "${2}")
+  toolSelected=$(cat ${dirConfig}/ks-upload-tool | grep "rsa")
   if [ -z "${fingerprint_host}" ] ; then
     # Run command for upload on Windows (Cygwin)
     if [ "${cygwin}" == "yes" ] ; then
-      echo "* INFO: First connection to a server requires saving the fingerprint."
-      echo "* INFO: Only the first time you will have to enter the password."
-      echo ""
-      /usr/bin/ssh ${1}@${2} echo "* Connection successfuly" &> /dev/null
-      OUTPUT=$?
+      if [ -z "${toolSelected}" ] ; then
+        echo "* INFO: First connection to a server requires saving the fingerprint."
+        echo "* INFO: Only the first time you will have to enter the password."
+        echo ""
+        /usr/bin/ssh ${1}@${2} echo "* Connection successfuly" &> /dev/null
+        OUTPUT=$?
+      else
+        echo "* INFO: First connection to a server requires saving the fingerprint."
+        echo "* INFO: Only the first time you will have to enter the password."
+        echo ""
+        /usr/bin/ssh -o HostKeyAlgorithms=+ssh-rsa ${1}@${2} echo "* Connection successfuly" &> /dev/null
+        OUTPUT=$?
+      fi
       if [ ${OUTPUT} -ne 0 ] ; then
         echo ""
         echo "+ ERROR: There has been a failure to connect to the server."
@@ -180,11 +189,19 @@ function check_fingerprint() {
       fi
     # Run command for upload on Unix systems
     else
-      echo "* INFO: First connection to a server requires saving the fingerprint."
-      echo "* INFO: Only the first time you will have to enter the password."
-      echo ""
-      ssh ${1}@${2} echo "* Connection successfuly" &> /dev/null
-      OUTPUT=$?
+      if [ -z "${toolSelected}" ] ; then
+        echo "* INFO: First connection to a server requires saving the fingerprint."
+        echo "* INFO: Only the first time you will have to enter the password."
+        echo ""
+        ssh ${1}@${2} echo "* Connection successfuly" &> /dev/null
+        OUTPUT=$?
+      else
+        echo "* INFO: First connection to a server requires saving the fingerprint."
+        echo "* INFO: Only the first time you will have to enter the password."
+        echo ""
+        ssh -o HostKeyAlgorithms=+ssh-rsa ${1}@${2} echo "* Connection successfuly" &> /dev/null
+        OUTPUT=$?
+      fi
       if [ ${OUTPUT} -ne 0 ] ; then
         echo ""
         echo "+ ERROR: There has been a failure to connect to the server."
@@ -211,6 +228,13 @@ function sendFile() {
         /usr/bin/rsync --progress -azL --rsh="/usr/bin/sshpass -p ${1} /usr/bin/ssh -l ${3}" ${2} ${4}:${5} 2> /dev/null
         /usr/bin/sshpass -p ${1} /usr/bin/ssh ${3}@${4} rm -rf ${5}/.${6}.* &> /dev/null
         OUTPUT=$?
+      elif [ "${toolSelected}" == "rsync-rsa" ] ; then
+        /usr/bin/rsync --progress -azL --rsh="/usr/bin/sshpass -p ${1} /usr/bin/ssh -o HostKeyAlgorithms=+ssh-rsa -l ${3}" ${2} ${4}:${5} 2> /dev/null
+        /usr/bin/sshpass -p ${1} /usr/bin/ssh -o HostKeyAlgorithms=+ssh-rsa ${3}@${4} rm -rf ${5}/.${6}.* &> /dev/null
+        OUTPUT=$?
+      elif [ "${toolSelected}" == "scp-rsa" ] ; then
+        /usr/bin/sshpass -p ${1} /usr/bin/scp -o HostKeyAlgorithms=+ssh-rsa ${2} ${3}@${4}:${5} 2> /dev/null
+        OUTPUT=$?
       else
         /usr/bin/sshpass -p ${1} /usr/bin/scp ${2} ${3}@${4}:${5} 2> /dev/null
         OUTPUT=$?
@@ -221,6 +245,13 @@ function sendFile() {
         rsync --progress -azL --rsh="sshpass -p ${1} ssh -l ${3}" ${2} ${4}:${5} 2> /dev/null
         sshpass -p ${1} ssh ${3}@${4} rm -rf ${5}/.${6}.* &> /dev/null
         OUTPUT=$?
+      elif [ "${toolSelected}" == "rsync-rsa" ] ; then
+        rsync --progress -azL --rsh="sshpass -p ${1} ssh -o HostKeyAlgorithms=+ssh-rsa -l ${3}" ${2} ${4}:${5} 2> /dev/null
+        sshpass -p ${1} ssh -o HostKeyAlgorithms=+ssh-rsa ${3}@${4} rm -rf ${5}/.${6}.* &> /dev/null
+        OUTPUT=$?
+      elif [ "${toolSelected}" == "scp-rsa" ] ; then
+        sshpass -p ${1} scp -o HostKeyAlgorithms=+ssh-rsa ${2} ${3}@${4}:${5} 2> /dev/null
+        OUTPUT=$?
       else
         sshpass -p ${1} scp ${2} ${3}@${4}:${5} 2> /dev/null
         OUTPUT=$?
@@ -247,15 +278,28 @@ function checkChecksum() {
   countChecksum=0
   echo -n "Checking checksum... " && sleep 4
   echo ""
+  toolSelected=$(cat ${dirConfig}/ks-upload-tool | grep "rsa")
   while [ ${correct} -eq 0 ] ; do
     if [ "${cygwin}" == "yes" ] ; then
-      checksumLocal=$(/usr/bin/md5sum ${2})
-      checksumServer=$(/usr/bin/sshpass -p ${1} /usr/bin/ssh ${3}@${4} md5sum ${5} 2> /dev/null)
-      OUTPUT=$?
+      if [ -z "${toolSelected}" ] ; then
+        checksumLocal=$(/usr/bin/md5sum ${2})
+        checksumServer=$(/usr/bin/sshpass -p ${1} /usr/bin/ssh ${3}@${4} md5sum ${5} 2> /dev/null)
+        OUTPUT=$?
+      else
+        checksumLocal=$(/usr/bin/md5sum ${2})
+        checksumServer=$(/usr/bin/sshpass -p ${1} /usr/bin/ssh -o HostKeyAlgorithms=+ssh-rsa ${3}@${4} md5sum ${5} 2> /dev/null)
+        OUTPUT=$?
+      fi
     else
-      checksumLocal=$(md5sum ${2})
-      checksumServer=$(sshpass -p ${1} ssh ${3}@${4} md5sum ${5} 2> /dev/null)
-      OUTPUT=$?
+      if [ -z "${toolSelected}" ] ; then
+        checksumLocal=$(md5sum ${2})
+        checksumServer=$(sshpass -p ${1} ssh ${3}@${4} md5sum ${5} 2> /dev/null)
+        OUTPUT=$?
+      else
+        checksumLocal=$(md5sum ${2})
+        checksumServer=$(sshpass -p ${1} ssh -o HostKeyAlgorithms=+ssh-rsa ${3}@${4} md5sum ${5} 2> /dev/null)
+        OUTPUT=$?
+      fi
     fi
     if [ ${OUTPUT} -ne 0 ] ; then
       echo "Failed to get checksum for ${5}"
@@ -443,11 +487,25 @@ function editConfig() {
       dirLocal=${DIR}
       echo ${dirLocal} > ${dirConfig}/ks-upload-dirlocal
      elif [ "${EDIT}" == "6" ] ; then
-      echo -n "* [Default: scp] Type upload tool (scp or rsync): " ; read TOOL
+      echo ""
+      echo "* Available options:"
+      echo ""
+      echo "- scp"
+      echo "- rsync"
+      echo "- scp-rsa (legacy RSA algorithm)"
+      echo "- rsync-rsa (legacy RSA algorithm)"
+      echo ""
+      echo -n "* [Default: scp] Type upload tool (scp/rsync/scp-rsa/rsync-rsa): " ; read TOOL
       if [ -z "${TOOL}" ] ; then
         upvTool="scp"
+      elif [ "${TOOL}" == "rsync" ] ; then
+        upvTool="rsync"
+      elif [ "${TOOL}" == "rsync-rsa" ] ; then
+        upvTool="rsync-rsa"
+      elif [ "${TOOL}" == "scp-rsa" ] ; then
+        upvTool="scp-rsa"
       else  
-        upvTool=${TOOL}
+        upvTool="scp"
       fi
       echo ${upvTool} > ${dirConfig}/ks-upload-tool
     elif [ "${EDIT}" == "7" ] ; then
@@ -531,7 +589,7 @@ function showHelp() {
   echo ""
   echo "* ks-upf (ks-tools) v${VERSION} (${M_DATE})"
   echo ""
-  echo "- Upload common file(s) to server with rsync+ssh"
+  echo "- Upload common file(s) to server with scp or rsync"
   echo ""
   echo "+ Syntax:"
   echo ""
@@ -700,6 +758,11 @@ elif [ "${1}" == "-i" ] ; then
       echo "* IMPORTANT: It's possible switch to 'rsync' if you wish (Command: ks-upv -e)"
       echo ""
     fi
+    if [ "${current_tool}" == "scp-rsa" ] ; then
+      echo "* NOTE: You are using 'scp' to upload files and no progress will be shown."
+      echo "* IMPORTANT: It's possible switch to 'rsync' if you wish (Command: ks-upv -e)"
+      echo ""
+    fi
     while [ ${count} -le ${totalFiles} ] ; do
       fullNameFile=$(showFile ${count})
       fullPathFile=$(showPathFile ${count})
diff --git a/src/ks-upr b/src/ks-upr
index c532ca8..fa1f5af 100755
--- a/src/ks-upr
+++ b/src/ks-upr
@@ -1,11 +1,11 @@
 #!/bin/bash
 
-###########################################################################
-# ks-upr (ks-tools) - Upload recursively file(s) to server with rsync+ssh #
-# Date: 22-01-2022                                                        #
-# Author: q3aql                                                           #
-# Contact: q3aql@duck.com                                                 #
-###########################################################################
+##############################################################################
+# ks-upr (ks-tools) - Upload recursively file(s) to server with scp or rsync #
+# Date: 22-01-2022                                                           #
+# Author: q3aql                                                              #
+# Contact: q3aql@duck.com                                                    #
+##############################################################################
 VERSION="8.2"
 M_DATE="220122"
 
@@ -144,14 +144,23 @@ function showFile() {
 # check_fingerprint <user> <server>
 function check_fingerprint() {
   fingerprint_host=$(cat ${HOME}/.ssh/known_hosts 2> /dev/null | grep -o "${2}")
+  toolSelected=$(cat ${dirConfig}/ks-upload-tool | grep "rsa")
   if [ -z "${fingerprint_host}" ] ; then
     # Run command for upload on Windows (Cygwin)
     if [ "${cygwin}" == "yes" ] ; then
-      echo "* INFO: First connection to a server requires saving the fingerprint."
-      echo "* INFO: Only the first time you will have to enter the password."
-      echo ""
-      /usr/bin/ssh ${1}@${2} echo "* Connection successfuly" &> /dev/null
-      OUTPUT=$?
+      if [ -z "${toolSelected}" ] ; then
+        echo "* INFO: First connection to a server requires saving the fingerprint."
+        echo "* INFO: Only the first time you will have to enter the password."
+        echo ""
+        /usr/bin/ssh ${1}@${2} echo "* Connection successfuly" &> /dev/null
+        OUTPUT=$?
+      else
+        echo "* INFO: First connection to a server requires saving the fingerprint."
+        echo "* INFO: Only the first time you will have to enter the password."
+        echo ""
+        /usr/bin/ssh -o HostKeyAlgorithms=+ssh-rsa ${1}@${2} echo "* Connection successfuly" &> /dev/null
+        OUTPUT=$?
+      fi
       if [ ${OUTPUT} -ne 0 ] ; then
         echo ""
         echo "+ ERROR: There has been a failure to connect to the server."
@@ -163,11 +172,19 @@ function check_fingerprint() {
       fi
     # Run command for upload on Unix systems
     else
-      echo "* INFO: First connection to a server requires saving the fingerprint."
-      echo "* INFO: Only the first time you will have to enter the password."
-      echo ""
-      ssh ${1}@${2} echo "* Connection successfuly" &> /dev/null
-      OUTPUT=$?
+      if [ -z "${toolSelected}" ] ; then
+        echo "* INFO: First connection to a server requires saving the fingerprint."
+        echo "* INFO: Only the first time you will have to enter the password."
+        echo ""
+        ssh ${1}@${2} echo "* Connection successfuly" &> /dev/null
+        OUTPUT=$?
+      else
+        echo "* INFO: First connection to a server requires saving the fingerprint."
+        echo "* INFO: Only the first time you will have to enter the password."
+        echo ""
+        ssh -o HostKeyAlgorithms=+ssh-rsa ${1}@${2} echo "* Connection successfuly" &> /dev/null
+        OUTPUT=$?
+      fi
       if [ ${OUTPUT} -ne 0 ] ; then
         echo ""
         echo "+ ERROR: There has been a failure to connect to the server."
@@ -191,6 +208,15 @@ function sendFile() {
       echo "+ Syncing folder ${2} to ${5} (${4})"
       /usr/bin/rsync --progress -azL --rsh="/usr/bin/sshpass -p ${1} /usr/bin/ssh -l ${3}" ${2}/ ${4}:${5}/ 2> /dev/null
       /usr/bin/sshpass -p ${1} /usr/bin/ssh ${3}@${4} rm -rf ${5}/.${6}.* &> /dev/null
+    elif [ "${toolSelected}" == "rsync-rsa" ] ; then
+      echo ""
+      echo "+ Syncing folder ${2} to ${5} (${4})"
+      /usr/bin/rsync --progress -azL --rsh="/usr/bin/sshpass -p ${1} /usr/bin/ssh -o HostKeyAlgorithms=+ssh-rsa -l ${3}" ${2}/ ${4}:${5}/ 2> /dev/null
+      /usr/bin/sshpass -p ${1} /usr/bin/ssh -o HostKeyAlgorithms=+ssh-rsa ${3}@${4} rm -rf ${5}/.${6}.* &> /dev/null
+    elif [ "${toolSelected}" == "scp-rsa" ] ; then
+      echo ""
+      echo "+ Sending files from ${2} to ${5} (${4})"
+      /usr/bin/sshpass -p ${1} /usr/bin/scp -o HostKeyAlgorithms=+ssh-rsa -r ${2}/* ${3}@${4}:${5}/ 2> /dev/null
     else
       echo ""
       echo "+ Sending files from ${2} to ${5} (${4})"
@@ -203,6 +229,15 @@ function sendFile() {
       echo "+ Syncing folder ${2} to ${5} (${4})"
       rsync --progress -azL --rsh="sshpass -p ${1} ssh -l ${3}" ${2}/ ${4}:${5}/ 2> /dev/null
       sshpass -p ${1} ssh ${3}@${4} rm -rf ${5}/.${6}.* &> /dev/null
+    elif [ "${toolSelected}" == "rsync-rsa" ] ; then
+      echo ""
+      echo "+ Syncing folder ${2} to ${5} (${4})"
+      rsync --progress -azL --rsh="sshpass -p ${1} ssh -o HostKeyAlgorithms=+ssh-rsa -l ${3}" ${2}/ ${4}:${5}/ 2> /dev/null
+      sshpass -p ${1} ssh -o HostKeyAlgorithms=+ssh-rsa ${3}@${4} rm -rf ${5}/.${6}.* &> /dev/null
+    elif [ "${toolSelected}" == "scp-rsa" ] ; then
+      echo ""
+      echo "+ Sending files from ${2} to ${5} (${4})"
+      sshpass -p ${1} scp -o HostKeyAlgorithms=+ssh-rsa -r ${2}/* ${3}@${4}:${5}/ 2> /dev/null
     else
       echo ""
       echo "+ Sending files from ${2} to ${5} (${4})"
@@ -381,11 +416,25 @@ function editConfig() {
       dirLocal=${DIR}
       echo ${dirLocal} > ${dirConfig}/ks-upload-dirlocal
      elif [ "${EDIT}" == "6" ] ; then
-      echo -n "* [Default: scp] Type upload tool (scp or rsync): " ; read TOOL
+      echo ""
+      echo "* Available options:"
+      echo ""
+      echo "- scp"
+      echo "- rsync"
+      echo "- scp-rsa (legacy RSA algorithm)"
+      echo "- rsync-rsa (legacy RSA algorithm)"
+      echo ""
+      echo -n "* [Default: scp] Type upload tool (scp/rsync/scp-rsa/rsync-rsa): " ; read TOOL
       if [ -z "${TOOL}" ] ; then
         upvTool="scp"
+      elif [ "${TOOL}" == "rsync" ] ; then
+        upvTool="rsync"
+      elif [ "${TOOL}" == "rsync-rsa" ] ; then
+        upvTool="rsync-rsa"
+      elif [ "${TOOL}" == "scp-rsa" ] ; then
+        upvTool="scp-rsa"
       else  
-        upvTool=${TOOL}
+        upvTool="scp"
       fi
       echo ${upvTool} > ${dirConfig}/ks-upload-tool
     elif [ "${EDIT}" == "7" ] ; then
@@ -469,7 +518,7 @@ function showHelp() {
   echo ""
   echo "* ks-upr (ks-tools) v${VERSION} (${M_DATE})"
   echo ""
-  echo "- Upload recursively file(s) to server with rsync+ssh"
+  echo "- Upload recursively file(s) to server with scp or rsync"
   echo ""
   echo "+ Syntax:"
   echo ""
@@ -632,6 +681,11 @@ elif [ "${1}" == "-i" ] ; then
     echo "* NOTE: You are using 'scp' to upload files and no progress will be shown."
     echo "* IMPORTANT: It's possible switch to 'rsync' if you wish (Command: ks-upv -e)"
   fi
+  if [ "${current_tool}" == "scp-rsa" ] ; then
+    echo ""
+    echo "* NOTE: You are using 'scp' to upload files and no progress will be shown."
+    echo "* IMPORTANT: It's possible switch to 'rsync' if you wish (Command: ks-upv -e)"
+  fi
   if [ -d ${dirLocal} ] ; then
     sendFile ${password} "${dirLocal}" ${user} ${server} ${dirServer}
     echo ""
diff --git a/src/ks-upv b/src/ks-upv
index ee6a7cb..95d245a 100755
--- a/src/ks-upv
+++ b/src/ks-upv
@@ -1,11 +1,11 @@
 #!/bin/bash
 
-######################################################################
-# ks-upv (ks-tools) - Upload videos file(s) to server with rynsc+ssh #
-# Date: 22-01-2022                                                   #
-# Author: q3aql                                                      #
-# Contact: q3aql@duck.com                                            #
-######################################################################
+#########################################################################
+# ks-upv (ks-tools) - Upload videos file(s) to server with scp or rsync #
+# Date: 22-01-2022                                                      #
+# Author: q3aql                                                         #
+# Contact: q3aql@duck.com                                               #
+#########################################################################
 VERSION="8.2"
 M_DATE="220122"
 
@@ -134,14 +134,23 @@ function showPathFile() {
 # check_fingerprint <user> <server>
 function check_fingerprint() {
   fingerprint_host=$(cat ${HOME}/.ssh/known_hosts 2> /dev/null | grep -o "${2}")
+  toolSelected=$(cat ${dirConfig}/ks-upload-tool | grep "rsa")
   if [ -z "${fingerprint_host}" ] ; then
     # Run command for upload on Windows (Cygwin)
     if [ "${cygwin}" == "yes" ] ; then
-      echo "* INFO: First connection to a server requires saving the fingerprint."
-      echo "* INFO: Only the first time you will have to enter the password."
-      echo ""
-      /usr/bin/ssh ${1}@${2} echo "* Connection successfuly" &> /dev/null
-      OUTPUT=$?
+      if [ -z "${toolSelected}" ] ; then
+        echo "* INFO: First connection to a server requires saving the fingerprint."
+        echo "* INFO: Only the first time you will have to enter the password."
+        echo ""
+        /usr/bin/ssh ${1}@${2} echo "* Connection successfuly" &> /dev/null
+        OUTPUT=$?
+      else
+        echo "* INFO: First connection to a server requires saving the fingerprint."
+        echo "* INFO: Only the first time you will have to enter the password."
+        echo ""
+        /usr/bin/ssh -o HostKeyAlgorithms=+ssh-rsa ${1}@${2} echo "* Connection successfuly" &> /dev/null
+        OUTPUT=$?
+      fi
       if [ ${OUTPUT} -ne 0 ] ; then
         echo ""
         echo "+ ERROR: There has been a failure to connect to the server."
@@ -153,11 +162,19 @@ function check_fingerprint() {
       fi
     # Run command for upload on Unix systems
     else
-      echo "* INFO: First connection to a server requires saving the fingerprint."
-      echo "* INFO: Only the first time you will have to enter the password."
-      echo ""
-      ssh ${1}@${2} echo "* Connection successfuly" &> /dev/null
-      OUTPUT=$?
+      if [ -z "${toolSelected}" ] ; then
+        echo "* INFO: First connection to a server requires saving the fingerprint."
+        echo "* INFO: Only the first time you will have to enter the password."
+        echo ""
+        ssh ${1}@${2} echo "* Connection successfuly" &> /dev/null
+        OUTPUT=$?
+      else
+        echo "* INFO: First connection to a server requires saving the fingerprint."
+        echo "* INFO: Only the first time you will have to enter the password."
+        echo ""
+        ssh -o HostKeyAlgorithms=+ssh-rsa ${1}@${2} echo "* Connection successfuly" &> /dev/null
+        OUTPUT=$?
+      fi
       if [ ${OUTPUT} -ne 0 ] ; then
         echo ""
         echo "+ ERROR: There has been a failure to connect to the server."
@@ -184,6 +201,13 @@ function sendFile() {
         /usr/bin/rsync --progress -azL --rsh="/usr/bin/sshpass -p ${1} /usr/bin/ssh -l ${3}" ${2} ${4}:${5} 2> /dev/null
         /usr/bin/sshpass -p ${1} /usr/bin/ssh ${3}@${4} rm -rf ${5}/.${6}.* &> /dev/null
         OUTPUT=$?
+      elif [ "${toolSelected}" == "rsync-rsa" ] ; then
+        /usr/bin/rsync --progress -azL --rsh="/usr/bin/sshpass -p ${1} /usr/bin/ssh -o HostKeyAlgorithms=+ssh-rsa -l ${3}" ${2} ${4}:${5} 2> /dev/null
+        /usr/bin/sshpass -p ${1} /usr/bin/ssh -o HostKeyAlgorithms=+ssh-rsa ${3}@${4} rm -rf ${5}/.${6}.* &> /dev/null
+        OUTPUT=$?
+      elif [ "${toolSelected}" == "scp-rsa" ] ; then
+        /usr/bin/sshpass -p ${1} /usr/bin/scp -o HostKeyAlgorithms=+ssh-rsa ${2} ${3}@${4}:${5} 2> /dev/null
+        OUTPUT=$?
       else
         /usr/bin/sshpass -p ${1} /usr/bin/scp ${2} ${3}@${4}:${5} 2> /dev/null
         OUTPUT=$?
@@ -194,6 +218,13 @@ function sendFile() {
         rsync --progress -azL --rsh="sshpass -p ${1} ssh -l ${3}" ${2} ${4}:${5} 2> /dev/null
         sshpass -p ${1} ssh ${3}@${4} rm -rf ${5}/.${6}.* &> /dev/null
         OUTPUT=$?
+      elif [ "${toolSelected}" == "rsync-rsa" ] ; then
+        rsync --progress -azL --rsh="sshpass -p ${1} ssh -o HostKeyAlgorithms=+ssh-rsa -l ${3}" ${2} ${4}:${5} 2> /dev/null
+        sshpass -p ${1} ssh -o HostKeyAlgorithms=+ssh-rsa ${3}@${4} rm -rf ${5}/.${6}.* &> /dev/null
+        OUTPUT=$?
+      elif [ "${toolSelected}" == "scp-rsa" ] ; then
+        sshpass -p ${1} scp -o HostKeyAlgorithms=+ssh-rsa ${2} ${3}@${4}:${5} 2> /dev/null
+        OUTPUT=$?
       else
         sshpass -p ${1} scp ${2} ${3}@${4}:${5} 2> /dev/null
         OUTPUT=$?
@@ -220,15 +251,28 @@ function checkChecksum() {
   countChecksum=0
   echo -n "Checking checksum... " && sleep 4
   echo ""
+  toolSelected=$(cat ${dirConfig}/ks-upload-tool | grep "rsa")
   while [ ${correct} -eq 0 ] ; do
     if [ "${cygwin}" == "yes" ] ; then
-      checksumLocal=$(/usr/bin/md5sum ${2})
-      checksumServer=$(/usr/bin/sshpass -p ${1} /usr/bin/ssh ${3}@${4} md5sum ${5} 2> /dev/null)
-      OUTPUT=$?
+      if [ -z "${toolSelected}" ] ; then
+        checksumLocal=$(/usr/bin/md5sum ${2})
+        checksumServer=$(/usr/bin/sshpass -p ${1} /usr/bin/ssh ${3}@${4} md5sum ${5} 2> /dev/null)
+        OUTPUT=$?
+      else
+        checksumLocal=$(/usr/bin/md5sum ${2})
+        checksumServer=$(/usr/bin/sshpass -p ${1} /usr/bin/ssh -o HostKeyAlgorithms=+ssh-rsa ${3}@${4} md5sum ${5} 2> /dev/null)
+        OUTPUT=$?
+      fi
     else
-      checksumLocal=$(md5sum ${2})
-      checksumServer=$(sshpass -p ${1} ssh ${3}@${4} md5sum ${5} 2> /dev/null)
-      OUTPUT=$?
+      if [ -z "${toolSelected}" ] ; then
+        checksumLocal=$(md5sum ${2})
+        checksumServer=$(sshpass -p ${1} ssh ${3}@${4} md5sum ${5} 2> /dev/null)
+        OUTPUT=$?
+      else
+        checksumLocal=$(md5sum ${2})
+        checksumServer=$(sshpass -p ${1} ssh -o HostKeyAlgorithms=+ssh-rsa ${3}@${4} md5sum ${5} 2> /dev/null)
+        OUTPUT=$?
+      fi
     fi
     if [ ${OUTPUT} -ne 0 ] ; then
       echo "Failed to get checksum for ${5}"
@@ -416,11 +460,25 @@ function editConfig() {
       dirLocal=${DIR}
       echo ${dirLocal} > ${dirConfig}/ks-upload-dirlocal
      elif [ "${EDIT}" == "6" ] ; then
-      echo -n "* [Default: scp] Type upload tool (scp or rsync): " ; read TOOL
+      echo ""
+      echo "* Available options:"
+      echo ""
+      echo "- scp"
+      echo "- rsync"
+      echo "- scp-rsa (legacy RSA algorithm)"
+      echo "- rsync-rsa (legacy RSA algorithm)"
+      echo ""
+      echo -n "* [Default: scp] Type upload tool (scp/rsync/scp-rsa/rsync-rsa): " ; read TOOL
       if [ -z "${TOOL}" ] ; then
         upvTool="scp"
+      elif [ "${TOOL}" == "rsync" ] ; then
+        upvTool="rsync"
+      elif [ "${TOOL}" == "rsync-rsa" ] ; then
+        upvTool="rsync-rsa"
+      elif [ "${TOOL}" == "scp-rsa" ] ; then
+        upvTool="scp-rsa"
       else  
-        upvTool=${TOOL}
+        upvTool="scp"
       fi
       echo ${upvTool} > ${dirConfig}/ks-upload-tool
     elif [ "${EDIT}" == "7" ] ; then
@@ -504,7 +562,7 @@ function showHelp() {
   echo ""
   echo "* ks-upv (ks-tools) v${VERSION} (${M_DATE})"
   echo ""
-  echo "- Upload videos file(s) to server with rynsc+ssh"
+  echo "- Upload videos file(s) to server with scp or rsync"
   echo ""
   echo "+ Syntax:"
   echo ""
@@ -674,6 +732,11 @@ elif [ "${1}" == "-i" ] ; then
       echo "* IMPORTANT: It's possible switch to 'rsync' if you wish (Command: ks-upv -e)"
       echo ""
     fi
+    if [ "${current_tool}" == "scp-rsa" ] ; then
+      echo "* NOTE: You are using 'scp' to upload files and no progress will be shown."
+      echo "* IMPORTANT: It's possible switch to 'rsync' if you wish (Command: ks-upv -e)"
+      echo ""
+    fi
     while [ ${count} -le ${totalFiles} ] ; do
       fullNameFile=$(showFile ${count})
       fullPathFile=$(showPathFile ${count})