Added the AES algorithm.

README.md

@@ -13,6 +13,7 @@ GCL is a Go library designed to offer a robust collection of cryptographic algor
 
 GCL offers support for a diverse range of cryptographic algorithms, ensuring that your cryptographic requirements are comprehensively addressed. Our library includes:
 
+- [X] AES
 - [X] ARGON2
 - [X] BLAKE2
 - [X] SHA256

algorithms/aes/Algorithm.go

@@ -0,0 +1,10 @@
+package aes
+
+// Algorithm
+type Algorithm struct{}
+
+// New
+func New() Algorithm {
+	// Return Algorithm
+	return Algorithm{}
+}

algorithms/aes/Decrypt.go

@@ -0,0 +1,38 @@
+package aes
+
+import (
+	// Standard
+	"crypto/aes"
+	"crypto/cipher"
+	"encoding/base64"
+)
+
+// Decrypt
+func (Algorithm) Decrypt(data string, key []byte) ([]byte, error) {
+	// Decoded Data
+	decodedData, err := base64.RawStdEncoding.DecodeString(data)
+	// Handle Error
+	if err != nil {
+		return []byte(""), err
+	}
+	// Block
+	block, err := aes.NewCipher(key)
+	// Handle Error
+	if err != nil {
+		return []byte(""), err
+	}
+	// GCM
+	gcm, err := cipher.NewGCM(block)
+	// Handle Error
+	if err != nil {
+		return []byte(""), err
+	}
+	// Decrypted Data
+	decryptedData, err := gcm.Open(nil, decodedData[:gcm.NonceSize()], decodedData[gcm.NonceSize():], nil)
+	// Handle Error
+	if err != nil {
+		return []byte(""), err
+	}
+	// Return Decrypted Data
+	return decryptedData, err
+}

algorithms/aes/Encrypt.go

@@ -0,0 +1,34 @@
+package aes
+
+import (
+	// Standard
+	"crypto/aes"
+	"crypto/cipher"
+	"crypto/rand"
+	"encoding/base64"
+)
+
+// Encrypt
+func (Algorithm) Encrypt(data []byte, key []byte) (string, error) {
+	// Block
+	block, err := aes.NewCipher(key)
+	// Handle Error
+	if err != nil {
+		return "", err
+	}
+	// GCM
+	gcm, err := cipher.NewGCM(block)
+	// Handle Error
+	if err != nil {
+		return "", err
+	}
+	// Nonce
+	nonce := make([]byte, gcm.NonceSize())
+	_, err = rand.Read(nonce)
+	// Handle Error
+	if err != nil {
+		return "", err
+	}
+	// Return Encrypted Data
+	return base64.RawStdEncoding.EncodeToString(gcm.Seal(nonce, nonce, []byte(data), nil)), err
+}