Electronic Transcript Signing via Dual Hash and Digital Notary
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Solution Overview
Problem
Conventional methods for transmitting electronic transcripts lack integrity and authenticity, as the contents can be altered unknowingly, and they do not include a digital signature, necessitating physical certification.
Innovation Solution
A method involving a hash operation on the electronic transcript, concatenation of user data, and a second hash operation, followed by digital notarization and signing, to create an electronically signed and certified transcript.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If conventional transmission methods are used for electronic transcripts, then ease of operation is improved, but reliability deteriorates due to lack of integrity protection and susceptibility to alteration
Solution Approach 1:
A digital signature is generated and attached to the electronic transcript before transmission. This preliminary action creates a cryptographic binding between the transcript content and the signer's identity, ensuring that any subsequent alteration of the transcript can be detected. The signature is created by hashing the transcript content and encrypting the hash with the signer's private key, establishing authenticity and integrity prior to transmission.
Solution Approach 2:
A digital certificate authority (CA) acts as an intermediary to issue digital certificates to signers. The CA verifies the signer's identity and binds their public key to their identity in a certificate signed by the CA's private key. This intermediary mechanism enables third parties to verify the authenticity of the digital signature without needing to trust the signer directly, thereby enhancing reliability while maintaining ease of operation.
2Reliability
If physical certification is used to ensure authenticity, then reliability is improved, but loss of time and productivity worsen due to requirement for physical copies
Solution Approach 1:
The mechanical process of physical signing and paper-based certification is replaced with an electronic digital signature system. Instead of physically writing a signature on paper and manually certifying documents, the system uses cryptographic algorithms to generate digital signatures that can be applied electronically. This substitution eliminates the need for physical handling, scanning, and mailing of documents, dramatically reducing certification time while maintaining or enhancing reliability through cryptographic verification.
Solution Approach 2:
The physical signature is replaced by a digital copy in the form of a cryptographic hash value encrypted with the signer's private key. This digital signature is a mathematical representation that serves the same authentication function as a physical signature but can be transmitted, stored, and verified electronically without degradation or loss. The digital certificate acts as a verifiable copy that proves the authenticity of the signature without requiring the original physical document.
3Productivity
If electronic signing is implemented without digital notarization, then productivity is improved, but reliability deteriorates due to inability to verify authenticity
Solution Approach 1:
A digital certificate authority (CA) serves as a trusted intermediary that issues digital certificates to signers. The CA verifies the signer's identity through established procedures and binds their public key to their identity in a certificate signed by the CA's private key. This intermediary mechanism enables rapid electronic verification of signatures by allowing recipients to validate the signer's identity through the certificate chain, maintaining high productivity while ensuring reliability through third-party verification.
Solution Approach 2:
The digital signature system provides immediate feedback on the validity of a signature through cryptographic verification. When a recipient receives an electronically signed transcript, they can use the signer's public key (from their digital certificate) to verify the signature's authenticity and the transcript's integrity. This instant verification feedback eliminates the need for manual review processes, maintaining high productivity while ensuring reliability through automated cryptographic validation.
Data Source
AI summary
A method for electronically signing an electronic transcript. The method includes a first hash operation performed on the electronic transcript to generate a representation of the contents of the electronic transcript. Data identifying the user is concatenated to the representation of the contents of the electronic transcript, and a second hash operation is performed on the data and the representation. The second hash operation generates a representation of the contents of the electronic transcript and the data. The representation of the contents of the electronic transcript and the data is recorded/time stamped by a digital notary service, from which a notary record of the time stamping is obtained from the digital notary service. The notary record is digitally signed, and an electronically signed electronic transcript is formed by bundling the digitally signed notary record with the electronic transcript and with the data identifying the user. In this manner, an electronic transcript with an electronic signature is created.