Quote from: Turing0x on July 25, 2022, 03:03:01 PM

hello there
i have my own bitcoin address and public key and a WIF recognized as invalid
this txt file was old and recovered from my old HDD
i assume that the wif has more than 19 missing characters at known positions
is there is any chances that i can recover it ??
any guiding help will be appreciated

Quote from: Turing0x on Today at 10:04:27 AM

The Missing Characters ( Replaced By * ) Are as Follows :
5HpHagT65TZzG1P*********************EB3kEsreAnchuDf

Assuming you manage to tweak Pollard Kangaroo (don't know if it's possible, looks kinda tricky), here are the expected run times and cost (on-demand, spot instance could be 1/3rd of the price) when using AWS GPU instance p3.8xlarge (4x V100):
MC - missing characters, bits - equivalent missing bits

\|	MC	\|	bits	\|	ETA	\|	$	\|
\|	14	\|	82	\|	00:11:17	\|	2	\|
\|	15	\|	88	\|	01:25:53	\|	18	\|
\|	16	\|	94	\|	10:54:07	\|	133	\|
\|	17	\|	100	\|	3d 11:01:37	\|	1,016	\|
\|	18	\|	105	\|	26d 08:18:52	\|	7,740	\|
\|	19	\|	111	\|	200 days	\|	58,942	\|
\|	20	\|	117	\|	4 years 68 days	\|	448,893	\|
\|	21	\|	123	\|	32 years	\|	3,418,664	\|
\|	22	\|	129	\|	242 years	\|	26,035,770	\|
\|	23	\|	135	\|	1849 years	\|	198,282,544	\|
\|	24	\|	141	\|	14083 years	\|	1,510,074,752	\|