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I have heard that Blockchain Database are secure because of their use of &quot;Byzantine fault tolerance.&quot;<br />
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I am told, Blockchain algorithms use encryption techniques to intertwine new data with existing data using this type of cryptography.<br />
<br />
Please verify this and explain in more detail where the term &quot;Byzantine fault tolerance&quot; comes from and what it is exactly?<br />
<br />
Thanks
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I have heard that Blockchain Database are secure because of their use of "Byzantine fault tolerance."

I am told, Blockchain algorithms use encryption techniques to intertwine new data with existing data using this type of cryptography.

Please verify this and explain in more detail where the term "Byzantine fault tolerance" comes from and what it is exactly?

Thanks

Bitcoin &amp; Blockchain Database: details on &quot;Byzantine fault tolerance&quot;

Encryption is the process of encoding messages or information in such a way that only authorized parties can read it. In an encryption scheme, the intended communication information or message, referred to as plaintext, is encrypted using an encryption algorithm, generating ciphertext that can only be read if decrypted. For technical reasons, an encryption scheme usually uses a pseudo-random encryption key generated by an algorithm. An authorized recipient can easily decrypt the message with the key provided by the originator to recipients, but not to unauthorized interceptors.

Encryption

An algorithm is a self-contained step-by-step set of operations to be performed. Algorithms exist that perform calculation, data processing, and automated reasoning. Starting from an initial state and initial input (perhaps empty), the instructions describe a computation that, when executed, proceeds through a finite number of well-defined successive states, eventually producing "output" and terminating at a final ending state. The transition from one state to the next is not necessarily deterministic; some algorithms, known as randomized algorithms, incorporate random input.

Algorithms

A blockchain is a technology for storing distributed records in a cryptographically secure way. The records to be included in each new block are broadcast to all nodes in the network to be verified and packaged together. This block is chained to the previous one with a cryptographic hash function which prevents tampering and ensures consensus amongst all nodes on the network. The most popular use for the technology is as a ledger for digital currency.

Bitcoin &amp; Blockchain Database: details on &quot;Byzantine fault tolerance&quot;

Bitcoin & Blockchain Database: details on "Byzantine fault tolerance"