SARA-G3 and SARA-U2 series - System Integration Manual
UBX-13000995 - R26
System description
Page 83 of 217
1.13.8
SSL/TLS
Not supported by SARA-G300 and SARA-G310 modules.
Not supported by SARA-G340-00S and SARA-G350-00S / SARA-G350-00X modules.
The modules support the Secure Sockets Layer (SSL) / Transport Layer Security (TLS) to provide security over the
FTP and HTTP protocols with certificate key sizes defined as follows:.
SARA-G3 series
o
Trusted root CA certificate: 4096 bits
o
Client certificate: 4096 bits
o
Client private key: 1024 bits
SARA-U2 series
o
Trusted root CA certificate: 4096 bits
o
Client certificate: 4096 bits
o
Client private key: 4096 bits
The SSL/TLS support provides different connection security aspects:
Server authentication
37
: use of the server certificate verification against a specific trusted certificate or a
trusted certificates list
Client authentication
: use of the client certificate and the corresponding private key
Data security and integrity: data encryption and Hash Message Authentication Code (HMAC) generation
The security aspects used during a connection depend on the SSL/TLS configuration and features supported.
Table 16 contains the settings of the default SSL/TLS profile and Table 17 to Table 21 report the main SSL/TLS
supported capabilities of the products. For a complete list of supported configurations and settings, see the
u-blox AT Commands Manual
Settings
Value
Meaning
Certificates validation level
Level 0
The server certificate will not be checked or verified
Minimum SSL/TLS version
Any
The server can use any of the TLS1.0/TLS1.1/TLS1.2 versions for the
connection
Cipher suite
Automatic
The cipher suite will be negotiated in the handshake process
Trusted root certificate internal name None
No certificate will be used for the server authentication
Expected server host-name
None
No server host-name is expected
Client certificate internal name
None
No client certificate will be used
Client private key internal name
None
No client private key will be used
Client private key password
None
No client private key password will be used
Pre-shared key
None
No pre-shared key password will be used
Table 16: Default SSL/TLS profile
37
Not supported by the “00” product version
