Generate SHA1 Hash
What is the SHA1 generator?
SHA1 is an algorithm similar to MD5. The difference between these two are:
- SHA1 produces a hash of 40 chars length
- The hash function is rounded for 80 times. MD5 chain is repeated for only 64 times
- This algorithm was built by the National Security Agency in 1995, three years after MD5 was published.
- Both have collisions founded.
Frequently asked questions
- What are the steps for SHA Hasher?
The steps are similar for all hash function:
- Enter your text
- Optional: Select the checkbox to include salt and specify the salt or use the default value
- Select the get hash button
- Optional: Register to use our free REST API to get the hash in JSON
- What does SHA1 stand for?
It stands for Secure Hash Algorithm 1.
- What's the difference between hashing and encryption?
The biggest difference is that hashing is one-way function and encryption can be two ways. This means that from the result of hashing you cannot get the initial value, so it's irreversible. Encryption can be decrypted.
- What is salt?
The salt is a sequence of random characters that are combined with the initial password and the result is hashed. This is a more secure way to store passwords because the hacker cannot use the dictionary method to crack the hashes.
For example, if a user's password is 123456, using a random salt will secure his passwords from a dictionary attack because password hash is different using salt than without salt.
- Is it safe to use?
Similar to MD5, SHA1 is fast, but Google already found a collision. We recommend using an algorithm like SHA256 for storing passwords or to check integrity.
- Can someone decrypt it?
No, this cryptographic function can't be decrypted, but there are many dictionaries where you can find for a word and his digest message.
- Is it free?
Yes, it's 100% free to use.
- There is an API available?
Yes, register for an API key and read the documentation.