Initial commit: Open sourcing all of the Maple Open Technologies code.

cloud/maplefile-backend/pkg/security/crypto/constants.go

@@ -0,0 +1,32 @@
+package crypto
+
+// Constants to ensure compatibility between Go and JavaScript
+const (
+	// Key sizes
+	MasterKeySize        = 32 // 256-bit
+	KeyEncryptionKeySize = 32
+	CollectionKeySize    = 32
+	FileKeySize          = 32
+	RecoveryKeySize      = 32
+
+	// ChaCha20-Poly1305 constants (updated from XSalsa20-Poly1305)
+	NonceSize         = 12 // ChaCha20-Poly1305 nonce size (changed from 24)
+	PublicKeySize     = 32
+	PrivateKeySize    = 32
+	SealedBoxOverhead = 16
+
+	// Legacy naming for backward compatibility
+	SecretBoxNonceSize = NonceSize
+
+	// Argon2 parameters - must match between platforms
+	Argon2IDAlgorithm = "argon2id"
+	Argon2MemLimit    = 67108864 // 64 MB
+	Argon2OpsLimit    = 4
+	Argon2Parallelism = 1
+	Argon2KeySize     = 32
+	Argon2SaltSize    = 16
+
+	// Encryption algorithm identifiers
+	ChaCha20Poly1305Algorithm = "chacha20poly1305" // Primary algorithm
+	XSalsa20Poly1305Algorithm = "xsalsa20poly1305" // Legacy algorithm (deprecated)
+)