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Digital Signature

The use of digital signatures both at European level and in our country has been established and is an alternative to the document throughput in a conventional manner. Digital signatures are a key mechanism for protecting these data, providing certification of the sender's identity and the protection from malicious and unintentional tampering of electronic documents. Therefore, they are one of the main instruments for full electronification of the transactions.

Creating a digital signature to a document is made using the private key, which is stored in the SSCD (Secure Signature Creation Device). The use of the private key when creating the signature ensures that they can not be cases of impersonation, as a user can sign only if he/she knows the private key.

  • Each signature is unique: Unlike handwritten signatures where the signature of a natural person is always the same, the digital signature is always different, unless the data we sign is the same. Thus, even a small change in a document will result in a completely different signature, but which is recognized solely as our own (since the verification is made by our corresponding public key which is unique).
  • Digital signatures provide authentication of the signatory's identity: Unlike handwritten signatures where counterfeiting is for the unscrupulous relatively an easy task, to create a valid digital signature without the knowledge of the private key is considered practically impossible. For this reason, the digital signatures are a safer way to verify the signer's identity, as if we are confident that the public key used to verify a signature belongs to a particular user, then the signature data is certainly from this user .
  • Digital signatures protect against data changes: When hand signing a document we know that in many cases it is possible to add some data and / or alteration of the existing ones. In the case of digital signatures is practically impossible. If we digitally sign a document, any alteration in the signed data will result in the detection by the signature verification process. A malicious user who wants to alter a document should have available the signature-creation data, ie. the private key of the signatory, to change a document and sign it again so as not to reveal his/her action. Therefore, if the malicious user does not have the required private key, he/she will be unable to change the data in a document without being perceived.

  • Electronic Seal

    The Electronic Seal for Business serves as a stamp that binds the Legal Entity exclusively and consists of the Legal Entity Certificate and the USB Token (SSCD) which is the physical storage medium of the Certificate. The electronic seal can be used to sign any document related to the company for the authentication to any third party, for signing emails as well as for transactions within the European Union. It is associated with the signatory legal representative of the business and identifies his / her identity in a specific and exclusive way. The certificates of the electronic seal are issued in accordance with EU Regulation 910/2014 -eIDAS Regulation and are valid for 3 years. The electronic seal is compatible with Windows 7, 8, 10, MAC, Linux.

    Κανονισμός ΕΕ 910/2014 - eIDAS Regulation
    ENTERCOM® suggests for your digital signature.
    Safenet 5110

    SafeNet eToken 5110

    Secure Signature Creation Device - smart card or usb token for Professionals (Lawyers, Engineers tee, etc.)

    Steps that I have to do to acquire my digital signature.
  • Procurement of an SSCD (Secure Signature Creation Device)
  • Online registration via APED Gate
  • Go to KEP (Service center for citizens)
  • Prepare your computer
  • Install necessary programs
  • Installation of digital certificates in eToken