Method and device for electronically capturing a handwritten signature and safeguarding biometric data
First Claim
1. A method comprising:
- (i) providing a computer apparatus having a first monitor configured to display an electronic document to be signed by a signer,(ii) providing a signature capture apparatus having a second monitor and a first unique key electronically stored in the signature capture apparatus, the signature capture apparatus being an individual unit separate from, but in communication with, the computer apparatus and being configured to electronically capture a handwritten signature of the signer and biometric data of the signer'"'"'s signature,(iii) generating in the computer apparatus a first hash sum of the electronic document to be signed by the signer,(iv) transmitting to the signature capture apparatus one of;
(a) the generated first hash sum and (b) the generated first hash sum and the electronic document to be signed,(iv.a) generating a second unique key in the signature capture apparatus by combining the first unique key and the first hash sum,(iv.b) generating a second hash sum by hashing the second unique key generated in the signature capture apparatus,(v) displaying on the first monitor of the computer apparatus the electronic document to be signed by the signer and the first hash sum of the electronic document,(vi) displaying on the second monitor of the signature capture apparatus the first hash sum transmitted from the computer apparatus,(vii) electronically capturing the handwritten signature of the signer made on the signature capture apparatus, thereby generating signature data,(viii) encrypting in the signature capture apparatus one of;
(a) the signature data and (b) the signature data and the first hash sum using the generated second hash sum of the second unique key,(ix) transmitting to the computer apparatus one of;
(a) the encrypted signature data and (b) the encrypted signature data and the encrypted first hash sum, and(x) storing on a computer-readable medium one of;
(a) the encrypted signature data, (b) the encrypted signature data and the encrypted first hash sum and (c) the encrypted signature data, the encrypted first hash sum and the signed electronic document.
1 Assignment
0 Petitions
Accused Products
Abstract
A method and apparatus for encrypting an electronic document involves a computer having a first monitor and a signature capture apparatus configured to capture a handwritten signature on a second monitor. A hash sum of the electronic document generated in the computer is transmitted to the signature capture apparatus. The electronic document and the first hash sum thereof are displayed on the first monitor. The first hash sum is also displayed on the second monitor. After electronically capturing the handwritten signature, the signature data and the first hash sum are encrypted in the signature capture apparatus and then transmitted to the computer. The encrypted signature data, the first hash sum and the signed document are stored on a computer-readable medium.
21 Citations
27 Claims
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1. A method comprising:
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(i) providing a computer apparatus having a first monitor configured to display an electronic document to be signed by a signer, (ii) providing a signature capture apparatus having a second monitor and a first unique key electronically stored in the signature capture apparatus, the signature capture apparatus being an individual unit separate from, but in communication with, the computer apparatus and being configured to electronically capture a handwritten signature of the signer and biometric data of the signer'"'"'s signature, (iii) generating in the computer apparatus a first hash sum of the electronic document to be signed by the signer, (iv) transmitting to the signature capture apparatus one of;
(a) the generated first hash sum and (b) the generated first hash sum and the electronic document to be signed,(iv.a) generating a second unique key in the signature capture apparatus by combining the first unique key and the first hash sum, (iv.b) generating a second hash sum by hashing the second unique key generated in the signature capture apparatus, (v) displaying on the first monitor of the computer apparatus the electronic document to be signed by the signer and the first hash sum of the electronic document, (vi) displaying on the second monitor of the signature capture apparatus the first hash sum transmitted from the computer apparatus, (vii) electronically capturing the handwritten signature of the signer made on the signature capture apparatus, thereby generating signature data, (viii) encrypting in the signature capture apparatus one of;
(a) the signature data and (b) the signature data and the first hash sum using the generated second hash sum of the second unique key,(ix) transmitting to the computer apparatus one of;
(a) the encrypted signature data and (b) the encrypted signature data and the encrypted first hash sum, and(x) storing on a computer-readable medium one of;
(a) the encrypted signature data, (b) the encrypted signature data and the encrypted first hash sum and (c) the encrypted signature data, the encrypted first hash sum and the signed electronic document. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 26)
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20. A signature system, comprising:
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a) a computer apparatus having; a storage device configured to store at least an electronic document to be signed, a first data processing device configured to generate a first hash sum of the electronic document to be signed by a signer, a first monitor configured to display the electronic document to be signed by the signer and the first hash sum of the electronic document to be signed by the signer, and a first input/output interface electrically connected with a separate signature capture apparatus and configured to transmit at least the first hash sum of the electronic document to be signed by the signer to the signature capture apparatus, and configured to receive data from the signature capture apparatus, and (b) the signature capture apparatus, which is a unit separate from, but in communication with, the computer apparatus via the first input/output interface, the signature capture apparatus having; a first unique key electronically stored in the signature capture apparatus in a manner that is inaccessable to the outside, a signature capture window configured to capture a signature made thereon using a writing implement, to capture biometric data of the signer'"'"'s signature and to generate signature data therefrom, a second monitor configured to display the first hash sum transmitted from the computer apparatus, a second data processing device configured to encrypt one of;
(a) the captured signature data and (b) the captured signature data and the first hash sum, anda second input/output interface electronically connected to the second monitor and the second data processing device and configured to transmit to the computer apparatus one of;
(a) the encrypted signature data and (b) the encrypted signature data and first hash sum,wherein; the signature capture apparatus is configured to;
generate a second unique key by combining the first unique key with the first hash sum, generate a second hash sum by hashing the second unique key, and encrypt one of;
(a) the signature data and (b) the signature data and the first hash sum using the generated second hash sum. - View Dependent Claims (21, 22, 23, 24, 25, 27)
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Specification