NOISSUE - Support non-chunked computation requests and add KBS decryption for uploaded algorithms and datasets. (#608)

* feat: support non-chunked computation requests and add KBS decryption for uploaded algorithms and datasets.

Signed-off-by: Sammy Oina <sammyoina@gmail.com>

* feat: update dataset resolution logic with context-based index verification and add extensive service error handling tests

Signed-off-by: Sammy Oina <sammyoina@gmail.com>

* feat: add AES encryption script and update package sources to connector-mods fork

Signed-off-by: Sammy Oina <sammyoina@gmail.com>

* fix: update file permission syntax in encrypt.go

Signed-off-by: Sammy Oina <sammyoina@gmail.com>

---------

Signed-off-by: Sammy Oina <sammyoina@gmail.com>

scripts/encrypt.go

@@ -0,0 +1,74 @@
+// Copyright (c) Ultraviolet
+// SPDX-License-Identifier: Apache-2.0
+
+package main
+
+import (
+	"crypto/aes"
+	"crypto/cipher"
+	"crypto/rand"
+	"fmt"
+	"io"
+	"os"
+)
+
+func main() {
+	if len(os.Args) < 4 {
+		fmt.Println("Usage: go run encrypt.go <key_file> <input_file> <output_file>")
+		os.Exit(1)
+	}
+
+	keyFile := os.Args[1]
+	inputFile := os.Args[2]
+	outputFile := os.Args[3]
+
+	// Read key
+	key, err := os.ReadFile(keyFile)
+	if err != nil {
+		fmt.Printf("Failed to read key file: %v\n", err)
+		os.Exit(1)
+	}
+	if len(key) != 32 {
+		fmt.Printf("Key must be 32 bytes, got %d\n", len(key))
+		os.Exit(1)
+	}
+
+	// Read plaintext
+	plaintext, err := os.ReadFile(inputFile)
+	if err != nil {
+		fmt.Printf("Failed to read input file: %v\n", err)
+		os.Exit(1)
+	}
+
+	block, err := aes.NewCipher(key)
+	if err != nil {
+		fmt.Printf("Failed to create cipher: %v\n", err)
+		os.Exit(1)
+	}
+
+	aesgcm, err := cipher.NewGCM(block)
+	if err != nil {
+		fmt.Printf("Failed to create GCM: %v\n", err)
+		os.Exit(1)
+	}
+
+	nonce := make([]byte, 12)
+	if _, err := io.ReadFull(rand.Reader, nonce); err != nil {
+		fmt.Printf("Failed to generate nonce: %v\n", err)
+		os.Exit(1)
+	}
+
+	ciphertext := aesgcm.Seal(nil, nonce, plaintext, nil)
+
+	// Combine nonce + ciphertext + tag
+	// Seal returns ciphertext || tag, so we just append it to nonce
+	output := append(nonce, ciphertext...)
+
+	err = os.WriteFile(outputFile, output, 0o644)
+	if err != nil {
+		fmt.Printf("Failed to write output file: %v\n", err)
+		os.Exit(1)
+	}
+
+	fmt.Printf("Successfully encrypted %s to %s\n", inputFile, outputFile)
+}