SHA1

The SHA (Secure Hash Algorithm) hash functions were designed by the NSA. SHA-1 is the most established of the existing SHA hash functions and it is used in a variety of security applications and protocols. However, SHA-1’s collision resistance has been weakening as new attacks are discovered or improved. The message digest algorithm consists, by default, of 80 rounds. SHA1 lives in the Hashing category of the fx menu. See SHA-1 for format details.

Parameters

Parameter	Type	Required	Default	Description
Input	string	yes	—	Value to transform. Previous step output or a literal.
Rounds	number	no	80	Numeric value. Default 80.

Input is the primary value (previous step output or a literal).

Returned value

Type	Description
string	Result of the SHA1 transformation.

Limitations

• This operation treats Input as raw bytes (binary-capable). Non-text payloads may display differently after decoding.
• Wrong key, algorithm options, or malformed input typically raises an evaluation error — fix Input or options before re-running.

Example

Run SHA1

The SHA (Secure Hash Algorithm) hash functions were designed by the NSA. Adjust optional parameters when the defaults do not match your payload.

1. Set Input to the value to transform (previous step output or a literal).

2. Review Rounds and keep defaults unless your format requires otherwise.

3. Confirm Output value shows the transformed result.