The possible size for the message digest generated is 160 bits
A cryptographically insecure hash function known as SHA-1 (Secure Hash Algorithm 1) takes an input and generates a 160-bit (20-byte) message digest hash value.
It is typically used to confirm that a file has not been altered. This is accomplished by creating a checksum prior to is transferring and also after it reaches its final destination.
No matter how big an input message is, the SHA-1 hashing algorithm always produces a 160-bit message digest. In point of fact, any secure algorithm must provide an output of a fixed length.
Learn more about the SHA-2 hashing algorithm here:https://brainly.com/question/13068609
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