SHA1 Encrypt
Text to hash (SHA-1):
SHA-1 Hash:
About SHA-1 Hashing
How to use:
- Enter your text in the input textarea
- Click the "Generate SHA-1 Hash" button
- Your SHA-1 hash will appear in the output area
- Click the "Copy" button to copy the hash to your clipboard
SHA-1 (Secure Hash Algorithm 1) is a cryptographic hash function that takes an input and produces a 160-bit (20-byte) hash value. This hash is typically rendered as a 40-digit hexadecimal number.
Key characteristics of SHA-1:
- Always produces a fixed-size output (160 bits)
- Same input always yields the same hash
- Small changes in input result in vastly different hashes
- One-way function (cannot derive original input from hash)
Security Note: SHA-1 is no longer considered secure for cryptographic purposes. For security-critical applications, use SHA-256 or stronger algorithms.
- File Integrity: Verifying that a file hasn"t been altered
- Git Version Control: Git uses SHA-1 to identify commits and ensure data integrity
- Digital Signatures: Historically used in signing certificates (now deprecated)
- Password Storage: Previously used to store password hashes (not recommended now)
Example SHA-1 hash:
Text: Hello World!
SHA-1: 2ef7bde608ce5404e97d5f042f95f89f1c232871
How SHA-1 differs from encryption:
SHA-1 is a hash function, not an encryption algorithm. Unlike encryption, hashing is a one-way process—you cannot retrieve the original data from a hash. This makes hashing suitable for verifying data integrity and storing passwords, but not for securing data that needs to be retrieved later.