Anonymization of traffic patterns over communication networks

A computer program product for obfuscating communication traffic patterns occurring over a cloud-based communication infrastructure including a plurality of computer servers, the computer program product comprising:

• one or more non-transitory computer-readable storage devices and program instructions stored on at least one of the one or more non-transitory storage devices, the program instructions executable by a processor, the program instructions comprising:
• instructions to detect, at a first communications device, first data communication sessions with a second communications device via a first computer server using a network protocol;
• instructions to access, at the first communications device, an information content threshold value associated with the first data communication sessions between the first and the second communications devices;
• instructions to access, at the first communications device, a first traffic pattern based on the first data communication sessions, the first traffic pattern determining communication occurrences between the first and the second communication devices over a first predefined time period;
• instructions to determine, at the first communications device, an information content value associated with the accessed first traffic pattern;
• instructions to generate, at the first communications device, based on a randomization process, a dummy data communication pattern for transmission to the second communications device:
• instructions to generate a second traffic pattern for obfuscating a traffic pattern change between the first and the second traffic pattern, wherein the second traffic pattern is generated by appending the dummy data communication pattern to the first traffic pattern;
• and
• instructions to re-route, using the network protocol, the first data communication sessions via the first computer server to a second data communication session having the second traffic pattern between the first communications device and the second communications device via a second computer server, wherein the second data communication session is established based on a detection of the information content value associated with the accessed first traffic pattern exceeding the information content threshold value.

A computer system for obfuscating communication traffic patterns occurring over a cloud-based communication infrastructure including a plurality of computer servers, the computer system comprising:

• one or more processors, one or more computer-readable memories, one or more non-transitory computer-readable storage devices, and program instructions stored on at least one of the one or more non-transitory storage devices for execution by at least one of the one or more processors via at least one of the one or more memories, wherein the computer system is capable of performing a method comprising:
• detecting, at a first communications device, first data communication sessions with a second communications device via a first computer server using a network protocol;
• accessing, at the first communications device, an information content threshold value associated with the first data communication sessions between the first and the second communications devices;
• accessing, at the first communications device, a first traffic pattern based on the first data communication sessions, the first traffic pattern determining communication occurrences between the first and the second communication devices over a first predefined time period;
• determining, at the first communications device, an information content value associated with the accessed first traffic pattern;
• generating, at the first communications device, based on a randomization process, a dummy data communication pattern for transmission to the second communications device;
• generating a second traffic pattern for obfuscating a traffic pattern change between the first and the second traffic pattern, wherein the second traffic pattern is generated by appending the dummy data communication pattern to the first traffic pattern;
• and
• re-routing, using the network protocol, the first data communication sessions via the first computer server to a second data communication session having the second traffic pattern between the first communications device and the second communications device via a second computer server, wherein the second data communication session is established based on a detection of the information content value associated with the accessed first traffic pattern exceeding the information content threshold value.