Function generateCID

IceFireDB-SQLProxy/pkg/p2p/p2p.go:443–464

A function that generates a CID object for a given string and returns it. Uses SHA256 to hash the string and generate a multihash from it. The mulithash is then base58 encoded and then used to create the CID

(namestring string)

// Uses SHA256 to hash the string and generate a multihash from it.
// The mulithash is then base58 encoded and then used to create the CID
func generateCID(namestring string) cid.Cid {
	// Hash the service content ID with SHA256
	hash := sha256.Sum256([]byte(namestring))
	// Append the hash with the hashing codec ID for SHA2-256 (0x12),
	// the digest size (0x20) and the hash of the service content ID
	finalhash := append([]byte{0x12, 0x20}, hash[:]...)
	// Encode the fullhash to Base58
	b58string := base58.Encode(finalhash)

	// Generate a Multihash from the base58 string
	mulhash, err := multihash.FromB58String(string(b58string))
	if err != nil {
		logrus.WithFields(logrus.Fields{
			"error": err.Error(),
		}).Fatalln("Failed to Generate Service CID!")
	}

	// Generate a CID from the Multihash
	cidvalue := cid.NewCidV1(12, mulhash)
	// Return the CID
	return cidvalue
}