Private Key or Secret-key and A Public Key are Cryptographic Keys that are mathematically linked.

The Private Key is used to decrypt ciphertext or to create a Digital Signature.

The Public Key is used to encrypt plaintext or to verify a Digital Signature

Protection and safeguarding of the Private Key must be performed as the Private Key is essentially a Bearer Token.

The two keys are used in Asymmetric Key Cryptography stems from the use of different keys to perform these opposite functions, each the inverse of the other.

Asymmetric Key Cryptography as contrasted Symmetric Key Cryptography which relies on the same Private Key to perform both.

Public Key Infrastructure Weaknesses#

If the Private Key is not properly safeguarded by the original owner, digital forgery can become a major concern as the Private Key is considered to be a Bearer Token.

More Information#

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« This page (revision-8) was last changed on 11-Sep-2016 12:31 by jim