CryptoHack – Recent Solves

Solves

Data for the 50 most recent submitted challenge solves. To read writeups for our challenges, visit Solutions.

Recent Solves

Date	User	Challenge	Score
2026-09-25T06:16:08Z	pentester	Euler's Totient	20
2026-09-25T06:16:04Z	Marineac	SSH Keys	35
2026-09-25T06:15:52Z	ZUKHRA	Finding Flags	2
2026-09-25T06:15:31Z	Alinur	Bytes and Big Integers	10
2026-09-25T06:15:15Z	ASET	Base64	10
2026-09-25T06:15:15Z	Marineac	CERTainly not	30
2026-09-25T06:15:12Z	medina_iskakova	XOR Properties	15
2026-09-25T06:15:06Z	Alina__Strelkova	XOR Properties	15
2026-09-25T06:15:06Z	Valeri	Quadratic Residues	25
2026-09-25T06:14:55Z	Alinur	Base64	10
2026-09-25T06:14:48Z	Valeri	Modular Inverting	25
2026-09-25T06:14:40Z	hyouchun	Modular Binomials	80
2026-09-25T06:14:40Z	Nicoleta	Chinese Remainder Theorem	40
2026-09-25T06:13:57Z	Nicoleta	Modular Square Root	35
2026-09-25T06:13:41Z	BADWARE	RSA Decryption	20
2026-09-25T06:13:29Z	Aibares	ASCII	5
2026-09-25T06:12:52Z	medina_iskakova	XOR Starter	10
2026-09-25T06:12:34Z	Alina__Strelkova	XOR Starter	10
2026-09-25T06:12:32Z	ASET	Hex	5
2026-09-25T06:12:23Z	Nicoleta	Legendre Symbol	35
2026-09-25T06:11:51Z	Veraa	Base64	10
2026-09-25T06:11:35Z	Alinur	Hex	5
2026-09-25T06:11:10Z	Alinur	ASCII	5
2026-09-25T06:11:05Z	Rellik	Structure of AES	15
2026-09-25T06:10:57Z	Zhenzhu	Hex	5
2026-09-25T06:10:50Z	medina_iskakova	Bytes and Big Integers	10
2026-09-25T06:10:37Z	Nicoleta	Quadratic Residues	25
2026-09-25T06:10:35Z	RomanKaplenko	XOR Starter	10
2026-09-25T06:10:32Z	Alina__Strelkova	Bytes and Big Integers	10
2026-09-25T06:10:23Z	ggfri	Base64	10
2026-09-25T06:10:20Z	CristoferNice	Modular Square Root	35
2026-09-25T06:09:40Z	sosison123321	Base64	10
2026-09-25T06:09:38Z	AIRAT	Bytes and Big Integers	10
2026-09-25T06:09:31Z	Nicoleta	Modular Inverting	25
2026-09-25T06:09:30Z	BADWARE	Private Keys	20
2026-09-25T06:09:04Z	azbuka	Finding Flags	2
2026-09-25T06:09:02Z	Nicoleta	Modular Arithmetic 2	20
2026-09-25T06:08:53Z	CristoferNice	Legendre Symbol	35
2026-09-25T06:08:47Z	AIRAT	Base64	10
2026-09-25T06:08:32Z	bornTOhack	Base64	10
2026-09-25T06:08:24Z	Alina__Strelkova	Base64	10
2026-09-25T06:08:15Z	ASET	ASCII	5
2026-09-25T06:08:03Z	medina_iskakova	Base64	10
2026-09-25T06:07:09Z	Marineac	Privacy-Enhanced Mail?	25
2026-09-25T06:07:08Z	LucianDediu	Legendre Symbol	35
2026-09-25T06:07:01Z	Valeri	Modular Arithmetic 2	20
2026-09-25T06:06:56Z	medina_iskakova	Hex	5
2026-09-25T06:06:44Z	Valeri	Modular Arithmetic 1	20
2026-09-25T06:06:42Z	Alina__Strelkova	Hex	5
2026-09-25T06:06:25Z	Nicoleta	Modular Arithmetic 1	20

Solves

Recent Solves

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