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Table Of Contents
SARA-R4 series-AT commands manual
UBX-17003787 - R16
20Device and data security
Page 236 of 401
Parameter Type Description
• 3: list imported certificates or private keys
• 4: retrieve the MD5 of an imported certificate or private key
<type> Number Type of the security data:
• 0: trusted root CA (certificate authority) certificate
• 1: client certificate
• 2: client private key
• 3: RFU
• 4: signature verification certificate
• 5: signature verification public key
Allowed values:
• SARA-R4 / SARA-N4 - 0, 1, 2
<cert_type> String Type of the security data in verbose format:
• "CA": trusted root CA (certificate authority) certificate
• "CC": client certificate
• "PK": client private key
• "SC": server certificate
• "VC": signature verification certificate
• "PU": signature verification public key
Allowed values:
• SARA-R4 / SARA-N4 - "CA", "CC", "PK"
<internal_name> String Unique identifier of an imported certificate or private key. If an existing name is used
the data will be overridden.
• SARA-R410M / SARA-R412M / SARA-N4 - The maximum length is 113 characters.
<data_size> Number Size in bytes of a certificate or private key being imported.
• SARA-R4 / SARA-N4 - The maximum allowed size is 8192 bytes.
<password> String Decryption password; applicable only for PKCS8 encrypted client private keys. The
maximum length is 128 characters.
<filename> String Name of the FS file containing the certificate or private key data to be imported.
• SARA-R4 / SARA-N4 - The maximum allowed file size is 8192 bytes.
<md5_string> String MD5 formatted string.
<common_name> String Certificate subject (issued to) common name; applicable only for trusted root and
client certificates.
<expiration_date> String Certificate expiration (valid to date); applicable only for trusted root and client
certificates.
<param1> Number/
String
Type and supported content depend on the related <op_code> parameter; see the
<op_code> specification.
<param2> Number/
String
Type and supported content depend on the related <op_code> parameter; see the
<op_code> specification.
20.3.2.4Notes
SARA-R4 / SARA-N4
• The <password>, <common_name> and <expiration_date> parameters are not supported.
• The certificates in the PEM format are not supported; they will not be automatically converted to the DER
format.
20.3.3SSL/TLS/DTLS security layer profile manager +USECPRF
+USECPRF
SARA-R410M SARA-R412MModules
SARA-N4
Syntax PIN required Settings saved Can be aborted Response time Error referenceAttributes
partial No No No - +CME Error
20.3.3.1Description
Manages security profiles for the configuration of the following SSL/TLS/DTLS connections properties:
• Certificate validation level:
o Level 0: no certificate validation; the server certificate will not be checked or verified. No additional
certificates are needed.