Abstract: A method is disclosed for establishing a secure communication session using composite key cryptography. The method comprises generating a first plurality of secret keys all of which are known only to a first communicating party and each one of which is shared with exactly one of a plurality of stewards, and generating a second plurality of secret keys all of which are known only to a second communicating party and each one of which is shared with exactly one of the plurality of stewards. The first and second communicating parties each send information to the other through different stewards, each communication leg being encrypted using a secret key known only to the respective communicating party and steward. These communications are usable to distribute cryptographic seeds to the communicating parties for use in generating a temporary session key that can be used to encrypt direct communications between the parties.

Abstract: A method is provided for processing a digital information set having a plurality of information bytes. The method comprises receiving the information set, determining a set of initialization parameters, initializing a set of state variables using the set of initialization parameters, and generating a plurality of cryptors, each cryptor being a virtual dynamic array containing a monoalphabetic cipher. The method further comprises modifying the state variables and one or more of the cryptors, setting the index value for each cryptor in the plurality of cryptors; and selecting an ordered cryptor subset to be applied to an information byte. The information byte is processed using the ordered cryptor subset to produce a processed information byte. If the information byte is a plaintext byte, the processed byte is an encrypted byte, and vice versa. The actions of modifying, setting, selecting, and processing are then repeated for each remaining information byte.

Abstract: A method is disclosed for establishing a secure communication session using composite key cryptography. The method comprises generating a first plurality of secret keys all of which are known only to a first communicating party and each one of which is shared with exactly one of a plurality of stewards, and generating a second plurality of secret keys all of which are known only to a second communicating party and each one of which is shared with exactly one of the plurality of stewards. The first and second communicating parties each send information to the other through different stewards, each communication leg being encrypted using a secret key known only to the respective communicating party and steward. These communications are usable to distribute cryptographic seeds to the communicating parties for use in generating a temporary session key that can be used to encrypt direct communications between the parties.

Abstract: A method is disclosed for establishing a secure communication session using composite key cryptography. The method comprises generating a first plurality of secret keys all of which are known only to a first communicating party and each one of which is shared with exactly one of a plurality of stewards, and generating a second plurality of secret keys all of which are known only to a second communicating party and each one of which is shared with exactly one of the plurality of stewards. The first and second communicating parties each send information to the other through different stewards, each communication leg being encrypted using a secret key known only to the respective communicating party and steward. These communications are usable to distribute cryptographic seeds to the communicating parties for use in generating a temporary session key that can be used to encrypt direct communications between the parties.

Abstract: A method is provided for processing a digital information set having a plurality of information bytes. The method comprises receiving the information set, determining a set of initialization parameters, initializing a set of state variables using the set of initialization parameters, and generating a plurality of cryptors, each cryptor being a virtual dynamic array containing a monoalphabetic cipher. The method further comprises modifying the state variables and one or more of the cryptors, setting the index value for each cryptor in the plurality of cryptors; and selecting an ordered cryptor subset to be applied to an information byte. The information byte is processed using the ordered cryptor subset to produce a processed information byte. If the information byte is a plaintext byte, the processed byte is an encrypted byte, and vice versa. The actions of modifying, setting, selecting, and processing are then repeated for each remaining information byte.