Methods of authorizing a computer license

A method of authorizing use of a product on one or more end user devices, comprising:

• receiving by a licensing authority character strings from said one or more end user devices seeking authorization for use of one or more of said different products, said character strings having a transaction identifier having at least a portion that is a random number that changes each time the user activates the product;
• encrypting by said licensing authority at least a portion of each of said character strings using a different encryption key associated with each different product, from an encryption key table;
• transmitting by said licensing authority at least said encryption portion of said character strings to said one or more end user devices for decryption by said one or more end user devices using an unchanging respective decryption key associated with program code of said product;
• and
• authorizing use of said product on said one or more end user devices based on said unchanging respective decryption key that remains unchanged with each activation of said product.

A method of authorizing use of a product on an end user device, comprising:

• receiving by a licensing authority a unique transaction identifier and an associated product number from said end user device, said unique transaction identifier having at least a portion that is a random number that changes each time the user activates the product;
• obtaining by said licensing authority a specific encryption key associated with said product number from an encryption key table using said product number as an index, said table including different respective encryption keys associated with different products;
• encrypting by said licensing authority said unique transaction identifier using said specific encryption key;
• transmitting by said licensing authority an encrypted transaction identifier to said end user device for decryption by said end user device using an unchanging decryption key associated with program code of said product, said unchanging decryption key remains unchanged with each activation of said product;
• and
• authorizing use of said product on said end user device based on said decryption of said encrypted transaction identifier using said unchanging decryption key.

A method of authorizing use of a product on an end user device, comprising:

• receiving by a licensing authority a transaction identifier from said end user device seeking authorization for use of said product, said transaction identifier having at least a portion that is a random number that changes each time said user activates said product;
• encrypting by said licensing authority said transaction identifier using a specific encryption key associated with said product, said specific encryption key being one of a plurality of different respective encryption keys from an encryption key table having respective encryption keys associated with different products;
• transmitting by said licensing authority said encrypted transaction identifier to said end user device for decryption by said end user device using an unchanging decryption key associated with program code of said product, said unchanging decryption key remains unchanged with each activation of said product;
• and
• authorizing use of said product on said end user device based on decryption of said encrypted transaction identifier using said unchanging decryption key.

A system for authorizing use of a product on one or more end user devices, comprising:

• a licensing authority computing device including a processor and a memory including instructions operable to be executed by the processor to perform a set of actions, the licensing authority processor configured to receive character strings from the one or more end user devices, the character strings being different each time the user seeks authorization for use of the product, the licensing authority processor further configured to encrypt at least a portion of each of the character strings using a different encryption key for each different product, from an encryption key table, to form an authorization number;
• and
• a decryption processor in communication with the licensing authority processor, the decryption processor configured to decrypt the authorization number using an unchanging respective decryption key associated with program code of the product,
• the licensing authority computing device providing authorization for the one or more end user devices to access the product based on the unchanging respective decryption key that remains unchanged with each activation of the product.