Early detection system and method for encrypted signals within packet networks

An encryption detector for providing early detection of encrypted packets within packet data network telephony calls operating under control of a computer program, said computer program using computer program code comprised of:

• computer program code operative prior to receipt of a transmitted packet and including:
• computer program code for receiving, at a receiver end of said packet data network, at least one transmitted packet;
• and
• computer program code for determining whether said transmitted packet includes a predetermined pattern inserted into said transmitted packet at a transmitter end of said packet data network;
• upon finding said predetermined pattern, changing a cipher to non-decryption mode and delivering said transmitted packet;
• upon finding no said predetermined pattern, decrypting said transmitted packet with a pre-configured cipher and further determining whether said transmitted packet includes said predetermined pattern;
• upon finding said predetermined pattern, changing said cipher to decryption mode, decrypting said transmitted packet, and delivering said transmitted packet;
• and
• upon finding no said predetermined pattern, discarding said transmitted packet and processing another one of said at least one transmitted packets from said receiving step.

A system of providing encryption detection within packet data network telephony calls comprising:

• a transmitter for inserting a predetermined pattern into at least two transmitted packets at a transmitter end of said packet data network;
• a receiver for receiving each of said at least two transmitted packets at a receiver end of said packet data network;
• said receiver including a means for determining whether one of said transmitted packets includes said predetermined pattern;
• a means for changing a cipher to non-decryption mode and for delivering said transmitted packet upon finding said predetermined pattern;
• a means for decrypting said transmitted packet with a pre-configured cipher and for further determining whether said transmitted packet includes said predetermined pattern upon finding no said predetermined pattern;
• a means for changing said cipher to decryption mode, for decrypting said transmitted packet, and for delivering said transmitted packet upon finding said predetermined pattern;
• and
• a means for discarding said transmitted packet and for processing another one of said at least one transmitted packets from said receiving step upon finding no said predetermined pattern.

A method of providing encryption detection within packet data network telephony calls comprising:

• receiving, at a receiver end of said packet data network, at least one encrypted transmitted packet;
• decrypting said encrypted transmitted packet to form a decrypted packet;
• determining whether said decrypted packet includes a predetermined pattern inserted into said encrypted transmitted packet at a transmitter end of said packet data network;
• upon finding said predetermined pattern, decrypting said transmitted packet, and delivering said transmitted packet;
• and
• upon finding no said predetermined pattern, discarding said transmitted packet and processing another one of said at least one transmitted packets from said receiving step.

An encryption detector for providing early detection of encrypted packets within packet data network telephony calls operating under control of a computer program, said computer program using computer program code comprised of:

• computer program code operative prior to receipt of a transmitted packet and including:
• computer program code for receiving, at a receiver end of said packet data network, at least one transmitted packet;
• computer program code for decrypting said transmitted packet with a pre-configured cipher;
• computer program code for determining whether said transmitted packet includes a predetermined pattern inserted into said transmitted packet at a transmitter end of said packet data network;
• upon finding said predetermined pattern, decrypting said transmitted packet, and delivering said transmitted packet;
• and
• upon finding no said predetermined pattern, discarding said transmitted packet and processing another one of said at least one transmitted packets from said receiving step.

A system of providing encryption detection within packet data network telephony calls comprising:

• a transmitter for inserting a predetermined pattern into at least two transmitted packets at a transmitter end of said packet data network;
• a receiver for receiving each of said at least two transmitted packets at a receiver end of said packet data network;
• said receiver including
• a means for decrypting said transmitted packet with a pre-configured cipher,
• a means for determining whether one of said transmitted packets includes said predetermined pattern,
• a means for delivering said transmitted packet upon finding said predetermined pattern;
• and
• a means for discarding said transmitted packet and for processing another one of said at least one transmitted packets from said receiving step upon finding no said predetermined pattern.