System and method for authenticating a gaming device

A method for authenticating content to be used for operating a device, the method comprising operating a boot program on said device to:

• obtain a signature stored on said device, said signature encrypting a key that can be recovered therefrom;
• read information unique to said device from said device;
• recover said key from a first signature component by providing said information unique to said device as an input to a signature verification function, said key being an output to said signature verification function;
• use said key to decrypt an encrypted image of at least a portion of said content to recover said portion, said encrypted image having been stored on said device;
• and
• use said portion in operating said device, said content being implicitly authenticated if said portion is operable.

A method for securing content stored on a device, the content being used in operating the device, the method comprising:

• designating a plaintext first portion of said content and a plaintext second portion of said content;
• generating an encrypted portion of said content by encrypting said plaintext first portion using a public key stored on said device, said encrypted portion corresponding to a first signature component;
• storing said encrypted portion and said plaintext second portion on said device;
• generating a second signature component using said encrypted first portion and said plaintext second portion;
• and
• storing said second signature component on said device to enable said device to obtain said second signature component and said public key to recover said plaintext first portion from said encrypted portion to enable said device to utilize said plaintext first portion, said first signature component, said second signature component, and said plaintext second portion corresponding to a signature to be verified in order to operate said device.

A method for authenticating content to be used in operating a device, the method comprising:

• obtaining a signature comprising an encrypted portion of said content corresponding to a first signature component, a second signature component, and a plaintext second portion of said content;
• obtaining a public key stored on said device, said public key having been used to encrypt a plaintext first portion of said content;
• utilizing said public key and said signature components to recover said plaintext first portion from said encrypted portion;
• and
• implicitly authenticating said content if said plaintext first portion recovered from said encrypted portion is operable on said device.

A system for securing content to be used by a device comprising a processor and memory, the memory comprising computer executable instructions operable by the processor to:

• prepare an encrypted image by encrypting at least a portion of said content such that said portion can be recovered by decrypting said encrypted image using a key;
• store said encrypted image on said device;
• obtain information unique to said device, said information unique to said device being readable from the device by a boot program operating on said device;
• generate a signature using said information unique to said device to bind said encrypted image to said device, said signature encrypting said key such that said key is recoverable from said signature using said information unique to said device;
• and
• store said signature on said device to enable said boot program on said device to recover said key from said signature by determining said information unique to said device and providing said information unique to said device as an input to a signature verification function, an output of said signature verification function corresponding to said key to enable said device to decrypt said encrypted image to obtain said portion.

A non-transitory computer readable medium comprising computer executable instructions for securing content to be used by a device, the computer executable instructions comprising instructions to:

• prepare an encrypted image by encrypting at least a portion of said content such that said portion can be recovered by decrypting said encrypted image using a key;
• store said encrypted image on said device;
• obtain information unique to said device, said information unique to said device being readable from the device by a boot program operating on said device;
• generate a signature using said information unique to said device to bind said encrypted image to said device, said signature encrypting said key such that said key is recoverable from said signature using said information unique to said device;
• and
• store said signature on said device to enable said boot program on said device to recover said key from said signature by determining said information unique to said device and providing said information unique to said device as an input to a signature verification function, an output of said signature verification function corresponding to said key to enable said device to decrypt said encrypted image to obtain said portion.

A system for authenticating content to be used for operating a device, the system comprising a processor and memory, the memory comprising computer executable instructions to operate a boot program on said device to:

• obtain a signature stored on said device, said signature encrypting a key that can be recovered therefrom;
• read information unique to said device from said device;
• recover said key from a first signature component by providing said information unique to said device as an input to a signature verification function, said key being an output to said signature verification function;
• use said key to decrypt an encrypted image of at least a portion of said content to recover said portion, said encrypted image having been stored on said device;
• and
• use said portion in operating said device, said content being implicitly authenticated if said portion is operable.

A non-transitory computer readable medium comprising computer executable instructions for authenticating content to be used for operating a device, the computer executable instructions comprising instructions to operate a boot program on said device to:

• obtain a signature stored on said device, said signature encrypting a key that can be recovered therefrom;
• read information unique to said device from said device;
• recover said key from a first signature component by providing said information unique to said device as an input to a signature verification function, said key being an output to said signature verification function;
• use said key to decrypt an encrypted image of at least a portion of said content to recover said portion, said encrypted image having been stored on said device;
• and
• use said portion in operating said device, said content being implicitly authenticated if said portion is operable.

A system for securing content stored on a device, the content being used in operating the device, the system comprising a processor and memory, the memory comprising computer executable operations for operating the processor to:

• designate a plaintext first portion of said content and a plaintext second portion of said content;
• generate an encrypted portion of said content by encrypting said plaintext first portion using a public key stored on said device, said encrypted portion corresponding to a first signature component;
• store said encrypted portion and said plaintext second portion on said device;
• generate a second signature component using said encrypted first portion and said plaintext second portion;
• and
• store said second signature component on said device to enable said device to obtain said second signature component and said public key to recover said plaintext first portion from said encrypted portion to enable said device to utilize said plaintext first portion, said first signature component, said second signature component, and said plaintext second portion corresponding to a signature to be verified in order to operate said device.

A non-transitory computer readable medium comprising computer executable instructions for securing content stored on a device, the computer executable instructions comprising instructions to:

• designate a plaintext first portion of said content and a plaintext second portion of said content;
• generate an encrypted portion of said content by encrypting said plaintext first portion using a public key stored on said device, said encrypted portion corresponding to a first signature component;
• store said encrypted portion and said plaintext second portion on said device;
• generate a second signature component using said encrypted first portion and said plaintext second portion;
• and
• store said second signature component on said device to enable said device to obtain said second signature component and said public key to recover said plaintext first portion from said encrypted portion to enable said device to utilize said plaintext first portion, said first signature component, said second signature component, and said plaintext second portion corresponding to a signature to be verified in order to operate said device.

A system for authenticating content to be used in operating a device, the system comprising a processor and memory, the memory comprising computer executable instructions to operate the processor to:

• obtain a signature comprising an encrypted portion of said content corresponding to a first signature component, a second signature component, and a plaintext second portion of said content;
• obtain a public key stored on said device, said public key having been used to encrypt a plaintext first portion of said content;
• utilize said public key and said signature components to recover said plaintext first portion from said encrypted portion;
• and
• implicitly authenticate said content if said plaintext first portion recovered from said encrypted portion is operable on said device.

A non-transitory computer readable medium comprising computer executable instructions for authenticating content to be used in operating a device, the computer executable instructions comprising instructions to:

• obtain a signature comprising an encrypted portion of said content corresponding to a first signature component, a second signature component, and a plaintext second portion of said content;
• obtain a public key stored on said device, said public key having been used to encrypt a plaintext first portion of said content;
• utilize said public key and said signature components to recover said plaintext first portion from said encrypted portion;
• and
• implicitly authenticate said content if said plaintext first portion recovered from said encrypted portion is operable on said device.