Certificate Authority

A certificate authority (CA), also sometimes referred to as a certification authority, is a company or organization that acts to validate the identities of entities (such as websites, email addresses, companies, or individual persons) and bind them to cryptographic keys through the issuance of electronic documents known as digital certificates. A certificate authority is typically involved in a PKI (Public-Key Infrastructure).



In cryptography, an X.509 certificate is a digital certificate based on the widely accepted International Telecommunications Union (ITU) X. 509



PKCS#15 (Public Key Cryptography Standards #15) is a Cryptographic Token Information Format Standard. PKCS#15 defines a standard allowing users of

Key Management


Key management refers to management of cryptographic keys in a cryptosystem. This includes dealing with the generation, exchange, storage, use, crypto-shredding (destruction) and replacement of