What is Public Key Infrastructure (PKI)

Public Key Infrastructure (PKI) is an encryption and cybersecurity system for protecting communication between users, systems, and equipment. PKI, in essence, is based on the usage of asymmetric cryptography, which uses a pair of keys: a public key and a private key. The public key can be obtained by anyone with the intention of communicating in a secure mode, but the private key is kept secret to its owner. PKI guarantees that encrypted and tamper-resistant information is passed between the parties. This framework technology allows critical services such as digital signatures, the issue of certificates, and verifying identity.

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Use Cases of Public Key Infrastructure (PKI)

Public Key Infrastructure (PKI) enables a wide range of secure digital services, ensuring trust, data integrity, and authentication across multiple applications. It plays a crucial role in securing communications, verifying identities, and enabling legally valid digital transactions. PKI supports trust, compliance, and data protection in numerous real-world applications, such as:

Website Document
Signing

Website Document Signing

PKI enables secure digital signing of web-based documents, ensuring authenticity, preventing tampering, and verifying the signer’s identity across platforms.

Data Integrity
Checking

Data Integrity Checking

Digital signatures powered by PKI verify that data remains unchanged during storage or transmission, ensuring complete integrity and trustworthiness.

Secure Encryption
Repository

Secure Encryption Repository

PKI safeguards encrypted data repositories, allowing only authorized users to decrypt and access sensitive information, ensuring privacy and control.

Secure Email
Communication

Secure Email Communication

Using PKI certificates, emails can be encrypted and signed to confirm sender identity and prevent interception or unauthorized alterations.

Valid Under the Count
of Law

Valid Under the Count of Law

Digital signatures created with PKI meet global legal standards, offering non-repudiation and making them admissible in courts as legal evidence.

User
Authentication

User Authentication

PKI supports strong multi-factor authentication by verifying users through digital certificates, enhancing security beyond traditional password systems.

Ensure Authenticity & Integrity With MeraDSC Digital Signature Solutions

We are a reliable digital signature solution and (Public Key Infrastructure) PKI technology provider that works to ensure secure communication, authentication, as well as data integrity for organizations of any size. Our services include official digital signatures and encryption services for secure document signing and strong data protection purposes. While emphasizing compliance and trust, we support businesses in protecting their digital dealings and communications with the state-of-the-art cryptographic technology.

Public Key Infrastructure (PKI)

Components of Public Key Infrastructure (PKI)

As part of a PKI solution, there are a number of integral parts of the solution that cooperate in order to sustain digital trust:

Certificate Authority (CA)

Certificate Authority is a trusted third party body that has the task of issuing, maintaining and revoking PKI certificates. CAs verify the identity of the entity requesting for a certificate before issuing it.

Digital Certificates

PKI certificates are digital documents which relate the public key with identity of an entity. They are the public key, owner’s details, expiration date and CA’s digital signature.

Registration Authority (RA)

The Registration Authority is a verifier that manages the vetting of identity before it forwards the validated ones to the CA

Certificate Revocation List (CRL)

A CRL is the list which is kept by the CA containing all the revoked certificates and it ensures that compromised certificates are not trusted.