Home / Hindi What is Asynchronous Transfer Mode (ATM) in Computer Networking Hindi What is Asynchronous Transfer Mode (ATM) in Computer Networking April 21, 2020 February 19, 2019 by Kumar Mritunjay.
Cryptography is the study and practice of techniques for secure communication in the presence of third parties called adversaries. It deals with developing and analyzing protocols which prevents malicious third parties from retrieving information being shared between two entities thereby following the various aspects of information security.Secure Communication refers to the scenario where the message or data shared between two parties can’t be accessed by an adversary. In Cryptography, an Adversary is a malicious entity, which aims to retrieve precious information or data thereby undermining the principles of information security.Data Confidentiality, Data Integrity, Authentication and Non-repudiation are core principles of modern-day cryptography.
. It was designed as the algorithm to be used for secure hashing in the US Digital Signature Standard. Hashing function is one of the most commonly used encryption methods. A hash is a special mathematical function that performs one-way encryption. SHA-l is a revised version of SHA designed by NIST and was published as a Federal Information Processing Standard (FIPS). Like MD5, SHA-l processes input data in 512-bit blocks.
SHA-l generates a 160-bit message digest. Whereas MD5 generated message digest of 128 bits.
The procedure is used to send a non secret but signed message from sender to receiver. In such a case following steps are followed:1. Sender feeds a plaintext message into SHA-l algorithm and obtains a 160-bit SHA-l hash.2. Sender then signs the hash with his RSA private key and sends both the plaintext message and the signed hash to the receiver.3.
Apcb m3 94v-0 video card driver for mac torrent. After receiving the message, the receiver computes the SHA-l hash himself and also applies the sender's public key to the signed hash to obtain the original hash H.
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