Examples of using Ciphertext in English and their translations into Portuguese
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Colloquial
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Official
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Medicine
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Financial
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Ecclesiastic
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Ecclesiastic
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Computer
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Official/political
Then the ciphertext is formula_9.
P is called the plaintext, andC is termed the ciphertext.
It could be ciphertext,- like a code, maybe.
Ciphertext is the disguised encrypted message.
Encryption is the process of converting plaintext to ciphertext.
That ciphertext was encoded using a method she devised.
One way to handle this last issue is through the method known as ciphertext stealing.
If you send me ciphertext, I can be working on algorithms.
The tableau is usually 26×26, so that26 full ciphertext alphabets are available.
In the non-adaptive definition, the adversary is allowed to query this oracle only up until it receives the challenge ciphertext.
For example, if using AES 128-bit,there are 128 bits of ciphertext produced per 128 bits of plaintext.
I'm gonna cram you so full of asynchronous JavaScript andmalware throttling that you will be crapping ciphertext.
There is no method for authentication of the ciphertext stream and therefore the ciphertext is vulnerable to a bit-flipping attack.
Blocks establish the input of plaintext and the output of ciphertext, measured in bits.
For example, if an adversary is sending ciphertext continuously to maintain traffic-flow security, it would be very useful to be able to distinguish real messages from nulls.
Cryptographers developed statistical techniques for attacking ciphertext, such as frequency analysis.
Symmetric-key algorithms are algorithms for cryptography that use the same cryptographic keys for both encryption of plaintext and decryption of ciphertext.
For example: a cryptanalyst has a plaintext and corresponding ciphertext, but does not know the key.
In the caseof symmetric-key algorithm cryptosystems, an adversary must not be able to compute any information about a plaintext from its ciphertext.
Plaintext is used as input to an encryption algorithm;the output is usually termed ciphertext particularly when the algorithm is a cipher.
This definition encompasses thenotion that in a secure scheme, the adversary should learn no information from seeing a ciphertext.
Because ECB encrypts identical plaintext blocks into identical ciphertext blocks, it does not hide data patterns well.
A tweakable block cipher accepts a second input called the tweak along with its usual plaintext or ciphertext input.
Variants of this definition define indistinguishability under chosen ciphertext attack and adaptive chosen ciphertext attack IND-CCA, IND-CCA2.
The Cocks IBE scheme is not widely used in practice due to its high degree of ciphertext expansion.
In complexity-theoretic cryptography,security against adaptive chosen-ciphertext attacks is commonly modeled using ciphertext indistinguishability IND-CCA2.
Terminology==Until modern times cryptography referred almost exclusively to"encryption", which is the process of converting ordinary information(called plaintext)into unintelligible text called ciphertext.
The disadvantage of this method is that identical plaintext blocks are encrypted into identical ciphertext blocks; thus, it does not hide data patterns well.
It is limited because each ciphertext is noisy in some sense, and this noise grows as one adds and multiplies ciphertexts, until ultimately the noise makes the resulting ciphertext indecipherable.
The challenger selects a bit b∈{\displaystyle\scriptstyle\in}{0, 1} uniformly at random,and sends the challenge ciphertext C E(PK, M b{\displaystyle\scriptstyle M_{b}}) back to the adversary.