Table 2. Vigenère polyalphabetic substitution.

Msg	Ascii	Pwd	Ascii	Msg+Pwd	→ Mod 64	→ +32	Enc	Enc-Pwd	→ Mod 64	→ +32	Msg
A	65	S	83	148	20	52	4	−31	33	65	A
E	69	e	101	170	42	74	J	−27	37	69	E
Q	81	c	99	180	52	84	T	−15	49	81	Q
U	85	r	114	199	7	39	′	−75	53	85	U
O	79	e	101	180	52	84	T	−17	47	79	O
R	82	t	116	198	6	38	&	−78	50	82	R
E	69	S	83	152	24	56	8	−27	37	69	E
A	65	e	101	166	38	70	F	−31	33	65	A
	32	c	99	131	3	35	#	−64	0	32
V	86	r	114	200	8	40	(	−74	54	86	V
I	73	e	101	174	46	78	N	−23	41	73	I
C	67	t	116	183	55	87	W	−29	35	67	C
T	84	S	83	167	39	71	G	−12	52	84	T
O	79	e	101	180	52	84	T	−17	47	79	O
R	82	c	99	181	53	85	U	−14	50	82	R
I	73	r	114	187	59	91	[	−23	41	73	I
A	65	e	101	166	38	70	F	−31	33	65	A
.	46	t	116	162	34	66	B	−50	14	46	.

Polyalphabetic substitution cypher of the plain message (Msg) “AEQUOREA VICTORIA.” with the key password (Pwd) “Secret” leading to the encrypted text (Enc) “4JT′T&8F#(NWGTU[FB” as found in GFP [enc], one of the constructs analyzed in Fig. 2C.