I can not scp transfer my files.

First, confirm the following basic points.

Authentification is by using SSH key not by password.
A private key is pair of a public key registered in a D-way submission account.
A private key file has read permission.
A private key file permission is set as others cannot access. For example, rw——-.
A passphrase for private key is correctly entered.

When transferring data files by using a private key generated in the other operating system, please check format of a private key. Convert private key

Environments and private key formats:

Unix/Mac OS X: Use an OpenSSH-format key. Convert a key in the Windows PuTTY file format into the OpenSSH.
Windows WinSCP: Use a PuTTY-format key. Convert a key in the Unix/Mac OS X OpenSSH file format into the Windows PuTTY format.

When these are correct, because we do not support technical details regarding use of third-party softwares, please refer to websites of softwares or confirm your system administrators whether scp (port 22) is allowed or not.

Windows PowerShell

invalid format error

A PuTTY-format private key causes “invalid format” error, convert the key into OpenSSH-format.

UNPROTECTED PRIVATE KEY FILE WARNING

If the private key access permission is too open, following error will be shown.

@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
@         WARNING: UNPROTECTED PRIVATE KEY FILE!          @
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
Permissions for './private-key-for-auth' are too open.
It is required that your private key files are NOT accessible by others.
This private key will be ignored.
Load key "./private-key-for-auth": bad permissions
test07@ftp-private.ddbj.nig.ac.jp: Permission denied (publickey,gssapi-keyex,gssapi-with-mic).
lost connection

Right-click the private key file and select the property.