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Plaintext is easily readable or, to be more accurate, decrypted/unencrypted text.
This is opposed to ciphertext, which is encrypted.
If you used an encryption algorithm to encode your message of "Hello, there" to "4hgu28fhdjf83291".
The plaintext form would be: "Hello, there"
The ciphertext form would be: "4hgu28fhdjf83291"
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Write a program to dycrypt the text kpfkc to get original string India using string concept in c?
char cyphertext[] = "kpfkc"; char plaintext[sizeof(cyphertext)]; int i; for (i=0; i<sizeof(cyphertext); i++) plaintext[i] = cyphertext[i] - 2; Note: This is not portable, and depends on the USASCII character set.
What is key of hill cipher if we have plain text and cipher text?
Assume Plaintext = P, Ciphertext = C, and the Key = K. C = P * K Therefore, multiply both sides by the inverse of P and you will get: C * P^(-1) = K Or, (ciphertext) * (inverse plaintext) = key If the size of the key is known as well, then use that same size when creating P and C matrices.
Is standard email transfer secure Why not How would you make it secure?
No, email is transmitted in plaintext. A secure solution would involve encrypting your email or using a more secure protocol (secure ftp, ssh, https, etc)
Briefly define the monoalpabetic cipher?
A monoalphabetic cipher uses fixed substitution over the entire message, whereas a polyalphabetic cipher uses a number of substitutions at different positions in the message, where a unit from the plaintext is mapped to one of several possibilities in the ciphertext and vice versa.
What are2 examples of data encryption methods?
cryptography, encryption is the process of transforming information (referred to as plaintext) using an algorithm (called a cipher) to make it unreadable to anyone except those possessing special knowledge, usually referred to as a key. The result of the process is information (in cryptography, referred to as ciphertext). The reverse process, i.e., to make the encrypted information readable again, is referred to as decryption (i.e., to make it unencrypted).
What is conclusion of encryption?
The result of encryption of plaintext is cyphertext. When cyphertext is translated back to plaintext, the process is called decryption.
How do you convert plaintext to ciphertext?
with a convertor :P
What is a CBC residue?
The last ciphertext block of the previous record. It is is sometimes xor'd with the plaintext of the next record to ensure duplicate plaintext does not encrypt to duplicate cipher text.
What tools can you can use to design program logic?
paper plaintext
Converting plaintext into ciphertext is called what?
Encoding, encipherment or encryption.
What is the encrypted term for plaintext called?
---- == == This is used by the program notepad!
What is decrypting?
Decryption is the reversal of encryption, producing plaintext as a function of the cypher and the key.
Which kind of attack on cryptosystems involves using a collection of pre-identified terms?
The kind of attack you are referring to is known as a known-plaintext attack. In this type of attack, the attacker has access to both the plaintext and the corresponding ciphertext, and the goal is to deduce the encryption key or algorithm used. By analyzing the patterns or relationships between the known plaintext and ciphertext, the attacker can potentially uncover vulnerabilities in the cryptosystem.
Why are there 26 possible mappings of a plaintext alphabet to ciphertext alphabet?
because 26 the number of English character
Write a program to dycrypt the text kpfkc to get original string India using string concept in c?
char cyphertext[] = "kpfkc"; char plaintext[sizeof(cyphertext)]; int i; for (i=0; i<sizeof(cyphertext); i++) plaintext[i] = cyphertext[i] - 2; Note: This is not portable, and depends on the USASCII character set.
What is a secure encryption?
Encryption is a process of translating a message from the Plaintext, into an encoded message, called the Ciphertext. This is usually accomplished using a secret Encryption Key and a cryptographic Cipher. ss of translating a message, called the Plaintext, into an encoded message, called the Ciphertext. This is usually accomplished using a secret Encryption Key and a cryptographic Cipher.
Give two reasons why PGP compresses messages?
Ans 1:PGP combines some of the best features of both conventional and public key cryptography. PGP is a hybrid cryptosystem. When a user encrypts plaintext with PGP, PGP first compresses the plaintext. Data compression saves modem transmission time and disk space and, more importantly, strengthens cryptographic security. Most cryptanalysis techniques exploit patterns found in the plaintext to crack the cipher. Compression reduces these patterns in the plaintext, thereby greatly enhancing resistance to cryptanalysis. (Files that are too short to compress or which don't compress well aren't compressed.)
