The Public and Private key pair comprise of two uniquely related cryptographic keys (basically long random numbers). Below is an example of a Public Key:
- New 2006-06-10: DSA keys are no longer accepted for authenticating to SSH servers, even if they were created using a random number generator. Due to the way the Digital Signature Algorithm works, if a DSA key is ever used from a machine with a weak random number generator, an evesdropper can derive the DSA private key.
- Here digital certificates are used for authentication and the communication between two parties will be highly secure. The digital certificates provided by PKI play an important role in identifying parties involved in communication. The PKI uses public key cryptography along with digital certificates.
3048 0241 00C9 18FA CF8D EB2D EFD5 FD37 89B9 E069 EA97 FC20 5E35 F577 EE31 C4FB C6E4 4811 7D86 BC8F BAFA 362F 922B F01B 2F40 C744 2654 C0DD 2881 D673 CA2B 4003 C266 E2CD CB02 0301 0001
The Public Key is what its name suggests - Public. It is made available to everyone via a publicly accessible repository or directory. On the other hand, the Private Key must remain confidential to its respective owner.
Because the key pair is mathematically related, whatever is encrypted with a Public Key may only be decrypted by its corresponding Private Key and vice versa.
For example, if Bob wants to send sensitive data to Alice, and wants to be sure that only Alice may be able to read it, he will encrypt the data with Alice's Public Key. Only Alice has access to her corresponding Private Key and as a result is the only person with the capability of decrypting the encrypted data back into its original form.
Cryptographic Key Management
As only Alice has access to her Private Key, it is possible that only Alice can decrypt the encrypted data. Even if someone else gains access to the encrypted data, it will remain confidential as they should not have access to Alice's Private Key.
Digital Certificates And Cryptographic Key Generator Download
Public Key Cryptography can therefore achieve Confidentiality. However another important aspect of Public Key Cryptography is its ability to create a Digital Signature.
The key generator utility program (KGUP) generates and maintains keys in the cryptographic key data set (CKDS). The CKDS stores DATA keys, MAC keys, PIN keys, and transport keys. If you are running a z890, z990, z9 EC, z9 BC, z10 EC, z10 BC, or z196 KGUP supports double length MAC and MACVER keys.