Instructions for Use
1. Local Temporary History: Displays the last generated result on the current page. Disabling this feature and regenerating, or refreshing the page, will keep only the latest result and clear all previous records. In this mode, you can review up to 255 previous generation records.
2. Process Line by Line: Each line of input (ignoring blank lines) is processed separately and output as an independent record. For example, if three different lines are input, the system will generate and display a record for each line. In this mode, up to 256 records can be generated.
3. Export: Supports export in txt, csv, xls, and xlsx formats (txt export note: When plaintext data contains new line characters (\r\n, \n, \r), to ensure consistency, all new line characters will be replaced with the ↵ symbol. Here, \r\n is for Windows systems, \n is for Linux and Unix systems, and \r is for older Mac systems.)
Example
Enter the following content:
123456
Click the generate button to produce:
8d969eef6ecad3c29a3a629280e686cf0c3f5d5a86aff3ca12020c923adc6c92
About the SHA-256 Hash Generator
This Online SHA-256 Hash Generator can quickly compute and generate the SHA-256 hash value for your text, providing an efficient and secure encryption solution for your data.
Note: SHA-256 is an encryption hash function that belongs to the SHA-2 (Secure Hash Algorithm 2) family, designed by the US National Security Agency (NSA) and published by the National Institute of Standards and Technology (NIST) as a Federal Information Processing Standard (FIPS). The primary goal of SHA-256 is to ensure data integrity and security.
• Features
Fixed Length Output: Regardless of the input data size, SHA-256 always produces a 256-bit (32-byte) hash value.
High Security: SHA-256 is designed with high security, resisting various cryptographic attacks such as collision attacks and pre-image attacks.
Fast Computation: SHA-256 can quickly compute the hash value of input data on most hardware.
Irreversibility: It is impossible to derive the original data from its hash value, a design feature of SHA-256.
Collision Resistance: It is extremely difficult to find two different inputs that produce the same output hash value.
• Use Cases
Digital Signatures: SHA-256 is commonly used to generate digital signatures, ensuring the integrity of the information and verifying the identity of the message sender.
Secure Storage: When storing user passwords, systems store the SHA-256 hash value of the password instead of the password itself, enhancing security.
Blockchain and Cryptocurrencies: For example, Bitcoin uses SHA-256 as part of its Proof of Work (PoW) algorithm, as well as ensuring the integrity of transactions and blocks.
Integrity Verification of Files and Messages: By comparing the SHA-256 hash values, it can be verified whether files or messages have been tampered with during transmission or storage.
Certificates and Security Protocols: In TLS/SSL and other security protocols, SHA-256 is used to generate and verify certificate fingerprints, as well as verify data integrity during the handshake process.