Security and Management Function Specifications

Firewall

Up to 16 IP addresses (or ranges of IP addresses) can be specified for both IPv4 and IPv6.
Up to 32 MAC addresses can be specified.

IPSec

IPSec of the machine conforms to RFC2401, RFC2402, RFC2406, and RFC4305.
Operating system of connected device
Windows 8.1
Windows 10
Connection mode
Transport mode
Key exchange protocol
IKEv1 (main mode)
Authentication method
Pre-shared key
Digital signature
Hash algorithm (and key length)
HMAC-SHA1-96
HMAC-SHA2 (256 bits or 384 bits)
Encryption algorithm (and key length)
3DES-CBC
AES-CBC (128 bits, 192 bits, 256 bits)
Key exchange algorithm/group (and key length)
Diffie-Hellman (DH)
Group 14 (2048 bits)
ECDH-P256 (256 bits)
ECDH-P384 (384 bits)
ESP
Hash algorithm
HMAC-SHA1-96
Encryption algorithm (and key length)
3DES-CBC
AES-CBC (128 bits, 192 bits, 256 bits)
Hash/encryption algorithm (and key length)
AES-GCM (128 bits, 192 bits, 256 bits)
AH
Hash algorithm
HMAC-SHA1-96
IPSec supports communication to a unicast address (single device).

Keys and Certificates

The following keys and certificates are supported:

Self-generated Key and Self-signed Certificate or CSR

Public key algorithm (and key length)
RSA (512 bits, 1024 bits, 2048 bits, 4096 bits)
DSA (1024Bits, 2048Bits, 3072Bits)
ECDSA (P256, P384, P521)
Certificate signature algorithm
RSA: SHA-1, SHA-256, SHA-384*1, SHA-512*1, MD2, MD5
DSA: SHA-1
ECDSA: SHA-1, SHA-256, SHA-384, SHA-512
Certificate thumbprint algorithm
SHA1
*1 SHA384-RSA and SHA512-RSA are available only when the RSA key length is 1024 bits or more.

Key and Certificate or CA Certificate for Installation

Format
Key
PKCS#12*1
CA certificate
X.509 DER format/PEM format
File extension
Key
".p12" or ".pfx"
CA certificate
".cer" or ".pem"
Public key algorithm (and key length)
RSA (512 bits, 1024 bits, 2048 bits, 4096 bits)
DSA (1024 bits, 2048 bits, 3072 bits)
ECDSA (P256, P384, P521)
Certificate signature algorithm
RSA: SHA-1, SHA-256, SHA-384*2, SHA-512*2, MD2, MD5
DSA: SHA-1
ECDSA: SHA-1, SHA-256, SHA-384, SHA-512
Certificate thumbprint algorithm
SHA1
*1 Requirements for the certificate contained in a key are pursuant to CA certificates.
*2 SHA384-RSA and SHA512-RSA are available only when the RSA key length is 1024 bits or more.
The machine does not support use of a certificate revocation list (CRL).

Definition of "Weak Encryption"

When [Prohibit Use of Weak Encrypt.] in [Encryption Settings] is set to [On], the use of the following algorithms is prohibited. [Encryption Settings]
Hash
MD4, MD5, SHA-1
HMAC
HMAC-MD5
Common key encryption
RC2, RC4, DES
Public key encryption
RSA encryption (512 bits/1024 bits)
RSA signature (512 bits/1024 bits)
DSA (512 bits/1024 bits)
DH (512 bits/1024 bits)
Even when [Prohibit Weak Encryp. Key/Cert.] in [Encryption Settings] is set to [On], the hash algorithm SHA-1, which is used for signing a root certificate, can be used.

TLS

The following combinations of the TLS version and algorithm are usable:
: Usable     : Not usable
Algorithm
TLS Version
TLS 1.3
TLS 1.2
TLS 1.1
TLS 1.0
Encryption Algorithm
AES-CBC (256bit)
AES-CBC (128bit)
AES-GCM (256bit)
AES-GCM (128bit)
3DES-CBC
CHACHA20-POLY1305
Key Exchange Algorithm
RSA
ECDHE
X25519
Signature Algorithm
RSA
ECDSA
HMAC Algorithm
SHA1
SHA256
SHA384
95UE-011