Nokia N95

Page 124
background image
Settings
124
Digital certificates should be used if you want to connect 
to an online bank or another site or remote server for 
actions that involve transferring confidential information. 
They should also be used if you want to reduce the risk of 
viruses or other malicious software and be sure of the 
authenticity of software when downloading and installing 
software.
 Important: Even if the use of certificates makes the 
risks involved in remote connections and software 
installation considerably smaller, they must be used 
correctly in order to benefit from increased security. The 
existence of a certificate does not offer any protection by 
itself; the certificate manager must contain correct, 
authentic, or trusted certificates for increased security to 
be available. Certificates have a restricted lifetime. If 
‘Expired certificate’ or ‘Certificate not valid yet’ is shown 
even if the certificate should be valid, check that the 
current date and time in your device are correct.
Before changing any certificate settings, you must make 
sure that you really trust the owner of the certificate and 
that the certificate really belongs to the listed owner.
View certificate details—check authenticity
You can only be sure of the correct identity of a server 
when the signature and the period of validity of a server 
certificate have been checked.
You are notified if the identity of the server is not 
authentic or if you do not have the correct security 
certificate in your device.
To check certificate details, scroll to a certificate, and 
select 
Options
> 
Certificate details
. When you open 
certificate details, the validity of the certificate is checked, 
and one of the following notes may be displayed:
•
Certificate not trusted
—You have not set any 
application to use the certificate. See ‘Change the trust 
settings’, p. 124.
•
Expired certificate
—The period of validity has ended 
for the selected certificate.
•
Certificate not valid yet
—The period of validity has 
not yet begun for the selected certificate.
•
Certificate corrupted
—The certificate cannot be used. 
Contact the certificate issuer.
Change the trust settings
Before changing any certificate settings, you must make 
sure that you really trust the owner of the certificate and 
that the certificate really belongs to the listed owner.
Scroll to an authority certificate, and select 
Options
> 
Trust settings
. Depending on the certificate, a list of the 
applications that can use the selected certificate is shown. 
For example:
Page 1 Page 2 Page 3 Page 4 Page 5 Page 6 Page 7 Page 8 Page 9 Page 10 Page 11 Page 12 Page 13 Page 14 Page 15 Page 16 Page 17 Page 18 Page 19 Page 20 Page 21 Page 22 Page 23 Page 24 Page 25 Page 26 Page 27 Page 28 Page 29 Page 30 Page 31 Page 32 Page 33 Page 34 Page 35 Page 36 Page 37 Page 38 Page 39 Page 40 Page 41 Page 42 Page 43 Page 44 Page 45 Page 46 Page 47 Page 48 Page 49 Page 50 Page 51 Page 52 Page 53 Page 54 Page 55 Page 56 Page 57 Page 58 Page 59 Page 60 Page 61 Page 62 Page 63 Page 64 Page 65 Page 66 Page 67 Page 68 Page 69 Page 70 Page 71 Page 72 Page 73 Page 74 Page 75 Page 76 Page 77 Page 78 Page 79 Page 80 Page 81 Page 82 Page 83 Page 84 Page 85 Page 86 Page 87 Page 88 Page 89 Page 90 Page 91 Page 92 Page 93 Page 94 Page 95 Page 96 Page 97 Page 98 Page 99 Page 100 Page 101 Page 102 Page 103 Page 104 Page 105 Page 106 Page 107 Page 108 Page 109 Page 110 Page 111 Page 112 Page 113 Page 114 Page 115 Page 116 Page 117 Page 118 Page 119 Page 120 Page 121 Page 122 Page 123 Page 124 Page 125 Page 126 Page 127 Page 128 Page 129 Page 130 Page 131 Page 132 Page 133 Page 134 Page 135 Page 136 Page 137 Page 138 Page 139 Page 140 Page 141 Page 142 Page 143 Page 144 Page 145 Page 146