<span>A numeric string is created by a cryptographic
algorithm, which is called a hash that is used to validity of a message or authenticity
of a document. The signature is verified by an algorithm that uses the stated
owner of the signature's public key to accept or reject the authenticity of a
signature. A certification authority's digital signature is used to verify the
authenticity of digital certificates and other documents in a PKI.</span>
Answer:
Rapid prototyping is the fast fabrication of a physical part, model or assembly using 3D computer aided design.
17.incorrect code........................sorry I'm not sure about number 16
Answer:
It depends on the structure of the sentence.
Explanation:
This will be shown as grammatical mistake because both the spellings are correct. If we write the word weather instead of the whether, Ms word shows the grammatical mistake. This is because, if we want to write the word whether, we should use or in our sentence. Both of these words are comes together.
Example
I will take a leave whether its raining or not.
In above sentence, both whether and or comes together. If we write weather instead of whether it just show the grammatical mistake in the sentence.
