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^ The "classic" format is plain text, and an XML format is also supported. ^ Theoretically possible due to abstraction, but no implementation is included. ^ The primary format is binary, but text and JSON formats are available. [8] [9]
Codetext is less often used, and almost always only when the algorithm involved is actually a code. Some systems use multiple layers of encryption , with the output of one encryption algorithm becoming "plaintext" input for the next.
Padding a message's payload before encrypting it can help obscure the cleartext's true length, at the cost of increasing the ciphertext's size and introducing or increasing bandwidth overhead. Messages may be padded randomly or deterministically, with each approach having different tradeoffs.
"Plain text is a pure sequence of character codes; plain Un-encoded text is therefore a sequence of Unicode character codes. In contrast, styled text, also known as rich text, is any text representation containing plain text plus added information such as a language identifier, font size, color, hypertext links, and so on.
PLAIN a simple cleartext password mechanism, defined in RFC 4616 OTP a one-time password mechanism. Obsoletes the SKEY mechanism. SKEY an S/KEY mechanism. CRAM-MD5 a simple challenge-response scheme based on HMAC-MD5. DIGEST-MD5 (historic [2]), partially HTTP Digest compatible challenge-response scheme based upon MD5. DIGEST-MD5 offered a data ...
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When the client sends a clear-text password, the authentication server will receive it, and compare it to a "known good" password. Since the authentication server has received the password in clear-text, the format of the stored password can be chosen to be secure "at rest". If an attacker were to steal the entire database of passwords, it is ...
Ciphertext-only: the cryptanalyst has access only to a collection of ciphertexts or code texts. This is the weakest attack model because the cryptanalyst has limited information. Modern ciphers rarely fail under this attack. [3] Known-plaintext: the attacker has a set of ciphertexts to which they know the corresponding plaintext