PicoCTF 2017 - computeAES

computeAES

Encrypted with AES in ECB mode. All values base64 encoded

ciphertext = t1h0qbcOhRQF5E46bsNLimfbcI6egrKP4LHtKR3lT4UdWjhssM8RQSBT7S/8rcRy

key = T5uVzYtuBNv6vwjohslV4w==

Base64 to Hex Converter => https://cryptii.com/base64-to-hex

AES Decrypter => http://aes.online-domain-tools.com/

Convert ciphertext (base64) to hex =>

1
b7 58 74 a9 b7 0e 85 14 05 e4 4e 3a 6e c3 4b 8a 67 db 70 8e 9e 82 b2 8f e0 b1 ed 29 1d e5 4f 85 1d 5a 38 6c b0 cf 11 41 20 53 ed 2f fc ad c4 72

Convert key (base64) to hex =>

1
4f 9b 95 cd 8b 6e 04 db fa bf 08 e8 86 c9 55 e3

Use online tool to solve;

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f	l	a	g	{	d	o	_	n	o	t	_	l	e	t	_
m	a	c	h	i	n	e	s	_	w	i	n	_	1	e	6
b	4	c	f	4	}	_	_	_	_	_	_	_	_	_	_

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