EAudit tool

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E-Audit tool
Hash / Digital Signature based
Sign and Verify files in a folder From Bellur
Infortech(P)Ltd. 32/38/1, 22nd main,
Padmanabhanagar, Bangalore -560 070, Phone
No91-80-26390340 www.binfortech.com
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Electronic-Audit tool presentation

• Signature is a symbol of a person affixed on a
  document for the purpose of agreeing with the
  contents there in.
• Hashing is a technology to check data integrity
  of documents and one of the two elements of
  digital signature.
• The purpose of Authentication of an electronic
  document is two fold.
• The first objective of authentication is to link
  a person as signatory to an electronic document.
• The second objective of authentication is to
  confirm that the signatory is giving his
  confirmation of some data which is present in the
  electronic document.
• We say that an electronic document is
  Authenticated or Signed by Mr X when it can
  be verified that Mr X stands in agreement to
  abide by what is contained in the document.

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• In the electronic world we need the Signature
  to perform the twin objectives of authentication
  namely identification of the person
  authenticating and confirming that no change has
  been made to the document after it was signed.
  To achieve these objectives the two technologies
  namely the Asymmetric Crypto System and Hash
  Function are identified.
• Hash and Asymmetric Crypto system are both based
  on mathematical operations that can be performed
  on a numerical value.
• An E-auditing tool has been developed by Bellur
  Infortech (P) Ltd. in collaboration with Naavi
  (Ujvala Consultants Pvt Ltd.) which enables use
  of Hash / Digital Signatures for auditing of
  electronic documents.

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• When an electronic document is passed through the
  hash algorithm, it produces a result which is
  called Hash Code or Message Digest or Hash
  Value.
• A Hash Value of a stream of data which we
  normally read in the computer as Digital
  Signature Document using MD5 algorithm looks
  like the following.
• f70ef4584bb4d1f0a4392561264628bf
• If the above sentence is modified as Digital
  Signature document,
• then the hash value would be
• b1fc5907fa4ced2c089de48e653e82ae
• Note that when the capital D in Document is
  changed to d, the hash code shows a significant
  change.
• This is the unique character of the hash
  algorithm that it produces a unique hash value
  for a document and any minor change would show up
  as a change in the value. No two documents can
  produce the same hash value unless they are
  absolutely identical bit by bit. This property is
  used in digital signatures to check the Data
  Integrity of a document between the time the
  document is signed and the time the signature is
  verified.

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• Asymmetric Cryptosystem is the technical tool to
  identify the digital signatory
• Digital Signature is not only a Digital contract
  enabling tool but also an Information Security
  Tool to secure Information in Transit

Hash Value
Document
Encrypted hash value
Digital Signature

• How to use our E-Audit tool follows.

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Screen Shots

• Signing documents in a folder using Hash
  Algorithm

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Select the hash type to create hash value
Select The Folder
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Generate hash values of the files
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Print the hash value
Select the file to view
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Customizable for specific customers
Folder path
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Type of hash algorithm
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Screen Shots

• Signing documents in a folder using Digital
  Signature

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Select The Folder
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Select hash type
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4
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Generate Digital Signature
Print the hash value
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Select your Digital Certificate
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Email id from Digital Certificate
Customizable for specific customers
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Screen Shots

• Verifying documents that match in a folder using
  Hash Algorithm.

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Select the correct folder to verify hash
Select the hash type to create hash value
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Verify hash values of files
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Select the file to view
Hash code values match
Print the hash value
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Folder path
Customizable for specific customers
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Type of hash algorithm
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3
Document Hash code values match
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Screen Shots

• Verifying documents that does not match in a
  folder using Hash Algorithm.

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Document modified after Sign
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2
Document hash values does not match
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Document modified after Sign
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2
Document hash values does not match.
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Screen Shots

• Verifying documents in a folder that match using
  Digital Signature.

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Select correct folder to verify documents
Verify documents using Digital Signature
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Select hash type
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Select Digital Certificate
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Documents match with Digital Certificate
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Folder path
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Email-id from Digital Certificate
Documents match with Digital Certificate
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Screen Shots

• Verifying documents in a folder that does not
  match using Digital Signature.

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Document modified after Sign
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Document does not match with Digital Certificate
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Document modified after Sign
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2
Document does not match with Digital Certificate