fix::> removed

Signed-off-by: Abhinav Prakash <abhinav.prakash319@gmail.com>

Author: PsychoPunkSage

samples/chaincode/confidential-escrow/utils/crypto.go

@@ -0,0 +1,43 @@
+package utils
+
+import (
+	"crypto/sha256"
+	"encoding/hex"
+	"fmt"
+)
+
+// Deal eveyting in bytes to keep things generic and simple
+func SHA256Hash(data []byte) string {
+	hash := sha256.Sum256(data)
+	return hex.EncodeToString(hash[:])
+}
+
+// Hash/secret Verification
+func VerifyHash(data []byte, expected string) bool {
+	return SHA256Hash(data) == expected
+}
+
+func HashCertificate(cert []byte) string {
+	return SHA256Hash(cert)
+}
+
+func VerifySecret(secret string, expected string) bool {
+	return VerifyHash([]byte(secret), expected)
+}
+
+// CreateCompositeKey creates a deterministic composite key
+// Useful for creating unique identifiers
+func CreateCompositeKey(components ...string) string {
+	var combined string
+	for i, component := range components {
+		if i > 0 {
+			combined += ":"
+		}
+		combined += component
+	}
+	return SHA256Hash([]byte(combined))
+}
+
+func LogHashOperation(operation string, input string, output string) {
+	fmt.Printf("[CRYPTO] %s: %s -> %s\n", operation, input[:min(len(input), 10)]+"...", output[:16]+"...")
+}

samples/chaincode/confidential-escrow/utils/external.go

@@ -0,0 +1,9 @@
+package utils
+
+import (
+	"github.com/hyperledger-labs/cc-tools/errors"
+)
+
+func GenerateUUID() (string, errors.ICCError) {
+	return "todo", nil
+}

samples/chaincode/confidential-escrow/utils/validate.go

@@ -0,0 +1,4 @@
+package utils
+
+// will think of it.
+// mainly created for field validation..