Answer: The Progressive Era was a period of widespread social activism and political reform across the United States that spanned the 1890s to the 1920s.
Explanation:
I believe the answer is in the question, web server. although I may be wrong
Cryptographic system converts between plaintext and ciphertext. Cryptography is t<span>he process of making and using codes to secure transmission of information.
The c</span>ryptographic system involves encryption (the process of converting original message into a form unreadable by unauthorized individuals) and decryption (t<span>he process of converting the cipher text message back into plaintext so that it can be readily understood.)</span>
