use the CRYPTO_BUFFER_EXCEEDED error for crypto stream overflows

internal/qerr/error_codes.go

@@ -23,6 +23,7 @@ const (
 	VersionNegotiationError ErrorCode = 0x9
 	ProtocolViolation       ErrorCode = 0xa
 	InvalidMigration        ErrorCode = 0xc
+	CryptoBufferExceeded    ErrorCode = 0xd
 )
 
 func (e ErrorCode) isCryptoError() bool {
@@ -71,6 +72,8 @@ func (e ErrorCode) String() string {
 		return "PROTOCOL_VIOLATION"
 	case InvalidMigration:
 		return "INVALID_MIGRATION"
+	case CryptoBufferExceeded:
+		return "CRYPTO_BUFFER_EXCEEDED"
 	default:
 		if e.isCryptoError() {
 			return "CRYPTO_ERROR"