问题描述:
英语翻译
A usability feature that some IM systems provide is meta
essages that indicate that the other user in an IM session
ping.This improves interactivity,allowing the user to realiz
at the other party is in the process of composing a messag
nd potentially hold off on their own typing.The “typing
essages are consequently a message type in the IM protoco
IM,YMSG,and MSN have such message types.AIM eve
as three granularities:typing,not typing,and typed bu
ased.One option YMSG provides that the others do not
e ability to send IM’s to users that are not currently logge
n to the system.The system saves the messages on persisten
orage and then delivers them to the recipient when that pe
n logs on to the service.
An interesting feature offered by AIM is the ability t
ngage in secure communications by encrypting the IM se
on.Clients can obtain public keys from AOL,as well as th
rresponding certificates to verify them.Secure instant me
ges are done using SSL and the two peer public key
ecure chat rooms are created using a shared 256-bit AE
cret key chosen by the chat room creator; invitations to th
hat room include the secret key.YMSG and MSN do no
ave any similar capability.Peer-to-peer text communicatio
also offered by some systems using direct TCP connection
etween clients,sometimes called “side chats.” AIM an
MSG have this feature,but MSN does not.
An interesting feature offered by AIM is the ability to engage in secure communications by encrypting the IM ses-
sion.Clients can obtain public keys from AOL,as well as the
corresponding certificates to verify them.Secure instant mes-
sages are done using SSL and the two peer public keys.
Secure chat rooms are created using a shared 256-bit AES
secret key chosen by the chat room creator; invitations to the
chat room include the secret key.YMSG and MSN do not
have any similar capability.Peer-to-peer text communication
is also offered by some systems using direct TCP connections
between clients,sometimes called “side chats.” AIM and
YMSG have this feature,but MSN does not.
A usability feature that some IM systems provide is meta
essages that indicate that the other user in an IM session
ping.This improves interactivity,allowing the user to realiz
at the other party is in the process of composing a messag
nd potentially hold off on their own typing.The “typing
essages are consequently a message type in the IM protoco
IM,YMSG,and MSN have such message types.AIM eve
as three granularities:typing,not typing,and typed bu
ased.One option YMSG provides that the others do not
e ability to send IM’s to users that are not currently logge
n to the system.The system saves the messages on persisten
orage and then delivers them to the recipient when that pe
n logs on to the service.
An interesting feature offered by AIM is the ability t
ngage in secure communications by encrypting the IM se
on.Clients can obtain public keys from AOL,as well as th
rresponding certificates to verify them.Secure instant me
ges are done using SSL and the two peer public key
ecure chat rooms are created using a shared 256-bit AE
cret key chosen by the chat room creator; invitations to th
hat room include the secret key.YMSG and MSN do no
ave any similar capability.Peer-to-peer text communicatio
also offered by some systems using direct TCP connection
etween clients,sometimes called “side chats.” AIM an
MSG have this feature,but MSN does not.
An interesting feature offered by AIM is the ability to engage in secure communications by encrypting the IM ses-
sion.Clients can obtain public keys from AOL,as well as the
corresponding certificates to verify them.Secure instant mes-
sages are done using SSL and the two peer public keys.
Secure chat rooms are created using a shared 256-bit AES
secret key chosen by the chat room creator; invitations to the
chat room include the secret key.YMSG and MSN do not
have any similar capability.Peer-to-peer text communication
is also offered by some systems using direct TCP connections
between clients,sometimes called “side chats.” AIM and
YMSG have this feature,but MSN does not.
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