Answer Posted / clara
PEM is the draft Internet Privacy-Enhanced Mail standard, designed, proposed, but not yet officially adopted, by the Internet Activities Board to provide secure electronic mail over the Internet. Designed to work with RFC 822 e-mail formats, PEM includes encryption, authentication, and key management, and allows use of both public-key and secret-key cryptosystems. Multiple cryptographic tools are supported; for each mail message, the specific encryption algorithm, digital signature algorithm, hash function, and so on are specified in the header. PEM explicitly supports only a few cryptographic algorithms; others may be added later. DES in CBC mode is currently the only message encryption algorithm supported, and both RSA and DES are supported for key management. Public-key management in PEM is based on X.509 certificates.
| Is This Answer Correct ? | 0 Yes | 0 No |
Post New Answer View All Answers
What are the Problems with watermarking?
What are pseudo-random generators?
What are pseudo-random numbers?
What is Provable security?
Expalin LaGrange Interpolation Polynomial Scheme?
Explain Digital steganography using other formats?
What is watermarking?
What is Compressed archives?
What is Steganography?
What is Key escrow?
What is signatures?
What is compression?
What are "Exotic" protocols?
What is Delimited data?
Explain Secret splitting protocol?
