What is a digital certificate?
The digital certificate is like an electronic passport, which is used in order to secure the reliability of the communication. According to Bulgarian laws the communication, which uses a digital certificate, equals the signature placed on a paper carrier.
The digital certificate is an electronic document, which contains unique details regarding its owner such as address, e-mail and the so-called keys.
Each certificate includes two “keys":
- public key – its distribution is free and it is used for encrypting of information, which after that can be encrypted only by a personal key
– a long succession of symbols, which is kept in an encrypted file. Its writing or typing is not necessary, which makes it even safer. The personal key has just a single owner and is not distributed. It is used for de-encrypting of information, which has been encrypted by the respective public key.
The personal key can also be used for signing of different notifications. In such cases the respective public key should be used for the sake of verification of the signature.
What is the purpose of the digital certificate?
The purpose of the digital certificate is confidentiality of the information, which has passed through the Internet or through some other public networks. It undoubtedly shows who the sender of the message is.
Digital certificates are far more secure than username and password. The customer should know not only the password of the digital certificate but also the personal key. Within the e-Banking system the digital certificates are used for identification of the “signing party" of the active operations because without them payment orders and other active operations cannot be issued.
Two types of digital certificates can be used in e- Postbank:
1. Qualified Electronic Signature (QES)
QES is a digital certificate issued by licensed Providers of certification services according to the provisions of the Electronic Document and Electronic Signature Act. Eurobank recommends you to use Universal Electronic Signature.
2. Certificates issued by Postbank’s e-Banking
Postbank issues certificates, which are valid only within the e-Banking system. They cannot be used in other systems and they are absolutely free of charge.
Please inform the bank immediately in case your certificate is lost or compromised.