The World Wonders - Message


When Nimitz, at CINCPAC headquarters in Hawaii, saw Kinkaid's plea for help he sent a message to Halsey, simply asking for the current location of Task Force 34, which due to a previous misunderstanding, was unclear:

Where is, repeat, where is Task Force Thirty Four?

With the addition of metadata including routing and classification information, as well as the padding at the head and tail, the entire plaintext message to be encoded and transmitted to Halsey was:


U.S. Navy procedure called for the padding to be added to the start and end of the message, which, due to the common words and phrases often being used in those sections, were vulnerable to cryptanalysis. The words chosen for padding should have been obviously not part of the actual message, however Nimitz's enciphering clerk used a phrase that " popped into my head".

While decrypting and transcribing the message, Halsey's radio officer properly removed the leading phrase, but the trailing phrase looked appropriate and he seems to have thought it was intended and so left it in before passing it on to Halsey, who read it as

Where is, repeat, where is Task Force Thirty Four? The world wonders.

The structure tagging (the 'RR's) should have made clear that the phrase was in fact padding. In all the ships and stations that received the message, only New Jersey's communicators failed to delete both padding phrases.

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Other articles related to "messages, message":

Double Bind
... communication in which an individual (or group) receives two or more conflicting messages, in which one message negates the other ... This creates a situation in which a successful response to one message results in a failed response to the other (and vice versa), so that the person will be automatically wrong regardless of response ... A double bind generally includes different levels of abstraction in orders of messages, and these messages can be stated or implicit within the context of the situation, or conveyed by tone of voice or body ...
One-way Compression Function - Matyas–Meyer–Oseas
... It feeds each block of the message (mi) as the plaintext to be encrypted ... output ciphertext is then also XORed with the same message block (mi) to produce the next hash value (Hi) ... can be described as The scheme has the rate A second preimage attack (given a message m1 an attacker finds another message m2 to satisfy hash(m1) = hash(m2) ) can be done according to ...
Message - In Computer Science
... There are two main senses of the word "message" in computer science messages passed within software, which may or may not be human-readable, and human-readable messages ... Message passing is a form of communication used in concurrent and parallel computing, object-oriented programming, and interprocess communication, where ... In a related use of this sense of a message, in object-oriented programming languages such as Smalltalk or Java, a message is sent to an object ...
Blind Signature - Dangers of Blind Signing
... through which it is possible to be tricked into decrypting a message by blind signing another message ... secret key, an attacker can provide a blinded version of a message encrypted with the signers public key, for them to sign ... The encrypted message would usually be some secret information which the attacker observed being sent encrypted under the signers public key which the attacker wants to learn ...

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