Digital Certificate

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Digital

certificates


What are Digital Certificates? A digital certificate is an attachment tagged to an electronic message for security purposes. It allows the sender of a message to be verified by the recipient, that the sender is the person he or she claims to be. In addition, it allows the recipient to reply to the message in a 'secure' way, so that only the sender of the original message and nobody else receives it.

The most important things in Digital certificates are as followsIdentification information Cryptographic keys Digital signature

Cryptographic KeysA digital certificate has a pair of coupled cryptographic keys. These are symmetric and asymmetric cryptographic. Symmetric cryptographic key uses only one key between two parties i.e. encryption and decryption is done by same keys.


Asymmetric cryptographic key uses different keys between two parties i.e. encryption and decryption is done by different keys. These keys always work in pairs i.e. one key is public to all which is only for the owner known as public key and private key is distributed to all the users which is always different from one customer to other. The main work of these keys is to encrypt and decrypt the messages and to secure the whole process of transactions.

Digital SignatureA digital signature is an electronic signature for verification purpose and provides higher degree of security. A digital certificate owner "signs" an object by using the certificate's private key. The recipient uses the certificate's corresponding public key to decrypt the signature, which verifies the integrity of the signed object and verifies the sender as the source. In other words, it is a way of authentication of digital messages.


In terms of cryptography (encoding messages), public key (identity) certificates, which are also called 'digital signatures', contain information about a person or organization's name, address etc, which is unique as it is 'publicly' available from only one such individual or organization. Typically in public key infrastructure (PKI) schemes, where the signatures are validated by Certificate Authorities (CA), the signing authorities certify that the public key and identity information belong together. A digital certificate may be withdrawn or revoked by CA's if it comes to light that the 'embedded relationship' between a key and the identity is incorrect or has changed e.g. or has changed employers. In addition, in security breaches, where the privacy of the issued certificates is compromised (i.e. it is reported that more than one person has attempted to use the key) similar actions may be taken. Such occasions of revocation are rare, but it means that even 'trusted' certificates should be checked for their current validity or 'expiry' status. Although it is the job of the PKI to check and update its certificates, in practice it is not always done. Third party protocols like (Online status certificate protocol – OSCP) queries the certificate issuing server to check the validity instead.

Digital Certificate must containName of the organization or individual The business addresses Digital signature Public key Serial number Valid Issued date Valid Expiration date. Digital Certificates can be used for a variety of electronic transactions including e-mail, virtual mall, groupware and electronic funds transfers. By using digital certificate, we can secure not only the transactions but also the whole process.

For additional information Dawgen Global IT Services , email us at : info@dawgen.global


About Dawgen Global Dawgen Global is an integrated multidisciplinary professional service firm in the Caribbean Region. We are integrated as one Regional firm and provide several professional services including: audit, accounting, tax, Information Technology, Risk, HR Solution, Performance, M&A, corporate finance and other advisory services. Our Caribbean regional network covers Jamaica. Trinidad and Tobago, Bahamas, Bermuda, the Cayman Islands, the Eastern Caribbean (Barbados, Antigua, St Lucia, Grenada, and St Kitts & Nevis), the Netherlands Antilles (Bonaire, Curacao, and St Maarten) and Aruba and the Turks and Caicos Islands. Our regional focus is to improve services to local, regional and international clients. Through our affiliation and membership in other Global Networks and Associations, we offer a global perspective while maintaining our regional insight by seeking alternatives for you – we tap the power of both. Our multidisciplinary teams of professionals leverage a wealth of industry-tailored, practical approaches to help you discover opportunities for your business. Whether your organization is strong and healthy, under stress or facing difficult choices, we work with you to find financial, strategic and operational solutions that improve your liquidity, financial flexibility and stakeholder returns. We’re here to help you build a sustainable business – in the short and long-term. Contact Information: Regional Head Office: Dawgen Towers, 47-49 Trinidad Terrace, Kingston 5 | Jamaica Telephone: (876) 929-2518| (876) 926-5210| (876) 630-2011| Fax: (876) 929-1300 Email: dawkins.brown@dawgen.com


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