How to use:
Simply input the plaintext you would like to hash into the top box and an output will appear in the box below; it contains the hash value made with a bit length the same as the number in the algorithm name, e.g. SHA-256 produces a hash with a bit-length of 256.
The hash produced here is in the form of hexadecimal. Another way to find the bit-length of the hash is by going from hexadecimals to bits. The conversions are as follows:
1 hexadecimal character = 4 bits
1 base64 character = 6 bits
1 text character = 8 bits
SHA-1
Information
In cryptography, SHA-1 (Secure Hash Algorithm 1) is a cryptographic hash function which takes an input and produces a 160-bit (20-byte) hash value
If a weakness is found in a hash function that allows for two files to have the same digest, the function is considered cryptographically broken, because digital fingerprints generated with it can be forged and cannot be trusted. This is the case for SHA-1 and leads to it being deemed unsafe.